Initial commit

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Stash Dev
2019-02-09 04:30:49 -08:00
commit 87eeed7e71
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# Project
FAQ.md
README.md
LICENSE
Makefile
.gitignore
.travis.yml
CONTRIBUTING.md
MIGRATIONS.md
docker-deploy.sh
# Golang
testing

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.DS_Store
cli/build
cli/cli
cli/migrate
.coverage
.godoc.pid
vendor/

131
vendor/github.com/golang-migrate/migrate/v4/.travis.yml generated vendored Normal file
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language: go
sudo: required
matrix:
allow_failures:
- go: master
include:
# Supported versions of Go: https://golang.org/dl/
- go: "1.10.x"
- go: "1.11.x"
- go: master
go_import_path: github.com/golang-migrate/migrate
env:
global:
- GO111MODULE=on
- MIGRATE_TEST_CONTAINER_BOOT_TIMEOUT=60
- DOCKER_USERNAME=golangmigrate
- secure: "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"
services:
- docker
cache:
directories:
- $GOPATH/pkg
before_install:
- echo "TRAVIS_GO_VERSION=${TRAVIS_GO_VERSION}"
# Download the binary to bin folder in $GOPATH
- if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then curl -L -s https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 -o $GOPATH/bin/dep; fi
# Make the binary executable
- if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then chmod +x $GOPATH/bin/dep; fi
install:
- if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then dep ensure -vendor-only; fi
- go get github.com/mattn/goveralls
script:
- make test COVERAGE_DIR=/tmp/coverage
after_success:
- goveralls -service=travis-ci -coverprofile /tmp/coverage/combined.txt
- make list-external-deps > dependency_tree.txt && cat dependency_tree.txt
- make build-cli
- gem install --no-document fpm
- fpm -s dir -t deb -n migrate -v "$(git describe --tags 2>/dev/null | cut -c 2-)" --license MIT -m dhui@users.noreply.github.com --url https://github.com/golang-migrate/migrate --description='Database migrations' -a amd64 -p migrate.$(git describe --tags 2>/dev/null | cut -c 2-).deb --deb-no-default-config-files -f -C cli/build migrate.linux-amd64=/usr/local/bin/migrate
deploy:
- provider: releases
api_key:
secure: hWH1HLPpzpfA8pXQ93T1qKQVFSpQp0as/JLQ7D91jHuJ8p+RxVeqblDrR6HQY/95R/nyiE9GJmvUolSuw5h449LSrGxPtVWhdh6EnkxlQHlen5XeMhVjRjFV0sE9qGe8v7uAkiTfRO61ktTWHrEAvw5qpyqnNISodmZS78XIasPODQbNlzwINhWhDTHIjXGb4FpizYaL3OGCanrxfR9fQyCaqKGGBjRq3Mfq8U6Yd4mApmsE+uJxgaZV8K5zBqpkSzQRWhcVGNL5DuLsU3gfSJOo7kZeA2G71SHffH577dBoqtCZ4VFv169CoUZehLWCb+7XKJZmHXVujCURATSySLGUOPc6EoLFAn3YtsCA04mS4bZVo5FZPWVwfhjmkhtDR4f6wscKp7r1HsFHSOgm59QfETQdrn4MnZ44H2Jd39axqndn5DvK9EcZVjPHynOPnueXP2u6mTuUgh2VyyWBCDO3CNo0fGlo7VJI69IkIWNSD87K9cHZWYMClyKZkUzS+PmRAhHRYbVd+9ZjKOmnU36kUHNDG/ft1D4ogsY+rhVtXB4lgWDM5adri+EIScYdYnB1/pQexLBigcJY9uE7nQTR0U6QgVNYvun7uRNs40E0c4voSfmPdFO0FlOD2y1oQhnaXfWLbu9nMcTcs4RFGrcC7NzkUN4/WjG8s285V6w=
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
file:
- cli/build/migrate.linux-amd64.tar.gz
- cli/build/migrate.darwin-amd64.tar.gz
- cli/build/migrate.windows-amd64.exe.tar.gz
- cli/build/sha256sum.txt
- dependency_tree.txt
- provider: packagecloud
repository: migrate
username: golang-migrate
token:
secure: 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
dist: ubuntu/xenial
package_glob: '*.deb'
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
- provider: packagecloud
repository: migrate
username: golang-migrate
token:
secure: 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
dist: ubuntu/bionic
package_glob: '*.deb'
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
- provider: packagecloud
repository: migrate
username: golang-migrate
token:
secure: aICwu3gJ1sJ1QVCD3elpg+Jxzt4P+Zj1uoh5f0sOwnjDNIZ4FwUT1cMrWloP8P2KD0iyCOawuZER27o/kQ21oX2OxHvQbYPReA2znLm7lHzCmypAAOHPxpgnQ4rMGHHJXd+OsxtdclGs67c+EbdBfoRRbK400Qz/vjPJEDeH4mh02ZHC2nw4Nk/wV4jjBIkIt9dGEx6NgOA17FCMa3MaPHlHeFIzU7IfTlDHbS0mCCYbg/wafWBWcbGqtZLWAYtJDmfjrAStmDLdAX5J5PsB7taGSGPZHmPmpGoVgrKt/tb9Xz1rFBGslTpGROOiO4CiMAvkEKFn8mxrBGjfSBqp7Dp3eeSalKXB1DJAbEXx2sEbMcvmnoR9o43meaAn+ZRts8lRL8S/skBloe6Nk8bx3NlJCGB9WPK1G56b7c/fZnJxQbrCw6hxDfbZwm8S2YPviFTo/z1BfZDhRsL74reKsN2kgnGo2W/k38vvzIpsssQ9DHN1b0TLCxolCNPtQ7oHcQ1ohcjP2UgYXk0FhqDoL+9LQva/DU4N9sKH0UbAaqsMVSErLeG8A4aauuFcVrWRBaDYyTag4dQqzTulEy7iru2kDDIBgSQ1gMW/yoBOIPK4oi6MtbTf1X39fzXFLS1cDd3LW61yAu3YrbjAetpfx2frIvrRAiL9TxWA1gnrs5o=
dist: ubuntu/cosmic
package_glob: '*.deb'
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
- provider: packagecloud
repository: migrate
username: golang-migrate
token:
secure: 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
dist: debian/stretch
package_glob: '*.deb'
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
- provider: packagecloud
repository: migrate
username: golang-migrate
token:
secure: aICwu3gJ1sJ1QVCD3elpg+Jxzt4P+Zj1uoh5f0sOwnjDNIZ4FwUT1cMrWloP8P2KD0iyCOawuZER27o/kQ21oX2OxHvQbYPReA2znLm7lHzCmypAAOHPxpgnQ4rMGHHJXd+OsxtdclGs67c+EbdBfoRRbK400Qz/vjPJEDeH4mh02ZHC2nw4Nk/wV4jjBIkIt9dGEx6NgOA17FCMa3MaPHlHeFIzU7IfTlDHbS0mCCYbg/wafWBWcbGqtZLWAYtJDmfjrAStmDLdAX5J5PsB7taGSGPZHmPmpGoVgrKt/tb9Xz1rFBGslTpGROOiO4CiMAvkEKFn8mxrBGjfSBqp7Dp3eeSalKXB1DJAbEXx2sEbMcvmnoR9o43meaAn+ZRts8lRL8S/skBloe6Nk8bx3NlJCGB9WPK1G56b7c/fZnJxQbrCw6hxDfbZwm8S2YPviFTo/z1BfZDhRsL74reKsN2kgnGo2W/k38vvzIpsssQ9DHN1b0TLCxolCNPtQ7oHcQ1ohcjP2UgYXk0FhqDoL+9LQva/DU4N9sKH0UbAaqsMVSErLeG8A4aauuFcVrWRBaDYyTag4dQqzTulEy7iru2kDDIBgSQ1gMW/yoBOIPK4oi6MtbTf1X39fzXFLS1cDd3LW61yAu3YrbjAetpfx2frIvrRAiL9TxWA1gnrs5o=
dist: debian/buster
package_glob: '*.deb'
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true
- provider: script
script: ./docker-deploy.sh
skip_cleanup: true
on:
go: "1.11.x"
repo: golang-migrate/migrate
tags: true

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# Development, Testing and Contributing
1. Make sure you have a running Docker daemon
(Install for [MacOS](https://docs.docker.com/docker-for-mac/))
1. Use a version of Go that supports [modules](https://golang.org/cmd/go/#hdr-Modules__module_versions__and_more) (e.g. Go 1.11+)
1. Fork this repo and `git clone` somewhere to `$GOPATH/src/github.com/golang-migrate/migrate`
* Ensure that [Go modules are enabled](https://golang.org/cmd/go/#hdr-Preliminary_module_support) (e.g. your repo path or the `GO111MODULE` environment variable are set correctly)
1. Confirm tests are working: `make test-short`
1. Write awesome code ...
1. `make test` to run all tests against all database versions
1. Push code and open Pull Request
Some more helpful commands:
* You can specify which database/ source tests to run:
`make test-short SOURCE='file go_bindata' DATABASE='postgres cassandra'`
* After `make test`, run `make html-coverage` which opens a shiny test coverage overview.
* `make build-cli` builds the CLI in directory `cli/build/`.
* `make list-external-deps` lists all external dependencies for each package
* `make docs && make open-docs` opens godoc in your browser, `make kill-docs` kills the godoc server.
Repeatedly call `make docs` to refresh the server.
* Set the `DOCKER_API_VERSION` environment variable to the latest supported version if you get errors regarding the docker client API version being too new.

23
vendor/github.com/golang-migrate/migrate/v4/Dockerfile generated vendored Normal file
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FROM golang:1.11-alpine3.8 AS downloader
ARG VERSION
RUN apk add --no-cache git gcc musl-dev
WORKDIR /go/src/github.com/golang-migrate/migrate
COPY . ./
ENV GO111MODULE=on
ENV DATABASES="postgres mysql redshift cassandra spanner cockroachdb clickhouse"
ENV SOURCES="file go_bindata github aws_s3 google_cloud_storage"
RUN go build -a -o build/migrate.linux-386 -ldflags="-X main.Version=${VERSION}" -tags "$DATABASES $SOURCES" ./cmd/migrate
FROM alpine:3.8
RUN apk add --no-cache ca-certificates
COPY --from=downloader /go/src/github.com/golang-migrate/migrate/build/migrate.linux-386 /migrate
ENTRYPOINT ["/migrate"]
CMD ["--help"]

70
vendor/github.com/golang-migrate/migrate/v4/FAQ.md generated vendored Normal file
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# FAQ
#### How is the code base structured?
```
/ package migrate (the heart of everything)
/cli the CLI wrapper
/database database driver and sub directories have the actual driver implementations
/source source driver and sub directories have the actual driver implementations
```
#### Why is there no `source/driver.go:Last()`?
It's not needed. And unless the source has a "native" way to read a directory in reversed order,
it might be expensive to do a full directory scan in order to get the last element.
#### What is a NilMigration? NilVersion?
NilMigration defines a migration without a body. NilVersion is defined as const -1.
#### What is the difference between uint(version) and int(targetVersion)?
version refers to an existing migration version coming from a source and therefor can never be negative.
targetVersion can either be a version OR represent a NilVersion, which equals -1.
#### What's the difference between Next/Previous and Up/Down?
```
1_first_migration.up.extension next -> 2_second_migration.up.extension ...
1_first_migration.down.extension <- previous 2_second_migration.down.extension ...
```
#### Why two separate files (up and down) for a migration?
It makes all of our lives easier. No new markup/syntax to learn for users
and existing database utility tools continue to work as expected.
#### How many migrations can migrate handle?
Whatever the maximum positive signed integer value is for your platform.
For 32bit it would be 2,147,483,647 migrations. Migrate only keeps references to
the currently run and pre-fetched migrations in memory. Please note that some
source drivers need to do build a full "directory" tree first, which puts some
heat on the memory consumption.
#### Are the table tests in migrate_test.go bloated?
Yes and no. There are duplicate test cases for sure but they don't hurt here. In fact
the tests are very visual now and might help new users understand expected behaviors quickly.
Migrate from version x to y and y is the last migration? Just check out the test for
that particular case and know what's going on instantly.
#### What is Docker being used for?
Only for testing. See [testing/docker.go](testing/docker.go)
#### Why not just use docker-compose?
It doesn't give us enough runtime control for testing. We want to be able to bring up containers fast
and whenever we want, not just once at the beginning of all tests.
#### Can I maintain my driver in my own repository?
Yes, technically thats possible. We want to encourage you to contribute your driver to this respository though.
The driver's functionality is dictated by migrate's interfaces. That means there should really
just be one driver for a database/ source. We want to prevent a future where several drivers doing the exact same thing,
just implemented a bit differently, co-exist somewhere on Github. If users have to do research first to find the
"best" available driver for a database in order to get started, we would have failed as an open source community.
#### Can I mix multiple sources during a batch of migrations?
No.
#### What does "dirty" database mean?
Before a migration runs, each database sets a dirty flag. Execution stops if a migration fails and the dirty state persists,
which prevents attempts to run more migrations on top of a failed migration. You need to manually fix the error
and then "force" the expected version.
#### What happens if two programs try and update the database at the same time?
Database-specific locking features are used by *some* database drivers to prevent multiple instances of migrate from running migrations at the same time
the same database at the same time. For example, the MySQL driver uses the `GET_LOCK` function, while the Postgres driver uses
the `pg_advisory_lock` function.

811
vendor/github.com/golang-migrate/migrate/v4/Gopkg.lock generated vendored Normal file
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# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
digest = "1:4a799555f4a58b849ca3a3bed67c10ca484a2d3cedf4199773211d04b0109793"
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"compute/metadata",
"iam",
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"longrunning",
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"spanner",
"spanner/admin/database/apiv1",
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version = "v0.27.0"
[[projects]]
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"winterm",
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[[projects]]
digest = "1:f9ae348e1f793dcf9ed930ed47136a67343dbd6809c5c91391322267f4476892"
name = "github.com/Microsoft/go-winio"
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pruneopts = "UT"
revision = "97e4973ce50b2ff5f09635a57e2b88a037aae829"
version = "v0.4.11"
[[projects]]
branch = "master"
digest = "1:3721a10686511b80c052323423f0de17a8c06d417dbdd3b392b1578432a33aae"
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[[projects]]
digest = "1:1d58a675bc7df5691f81b4a28a39d2d218f020b23644a6c7771f7ebaab272ac8"
name = "github.com/aws/aws-sdk-go"
packages = [
"aws",
"aws/awserr",
"aws/awsutil",
"aws/client",
"aws/client/metadata",
"aws/corehandlers",
"aws/credentials",
"aws/credentials/ec2rolecreds",
"aws/credentials/endpointcreds",
"aws/credentials/stscreds",
"aws/csm",
"aws/defaults",
"aws/ec2metadata",
"aws/endpoints",
"aws/request",
"aws/session",
"aws/signer/v4",
"internal/s3err",
"internal/sdkio",
"internal/sdkrand",
"internal/sdkuri",
"internal/shareddefaults",
"private/protocol",
"private/protocol/eventstream",
"private/protocol/eventstream/eventstreamapi",
"private/protocol/query",
"private/protocol/query/queryutil",
"private/protocol/rest",
"private/protocol/restxml",
"private/protocol/xml/xmlutil",
"service/s3",
"service/s3/s3iface",
"service/sts",
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[[projects]]
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revision = "8dea3dc473e90c8179e519d91302d0597c0ca1d1"
version = "v1.15.0"
[[projects]]
digest = "1:2d1fbdc6777e5408cabeb02bf336305e724b925ff4546ded0fa8715a7267922a"
name = "gopkg.in/inf.v0"
packages = ["."]
pruneopts = "UT"
revision = "d2d2541c53f18d2a059457998ce2876cc8e67cbf"
version = "v0.9.1"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
input-imports = [
"cloud.google.com/go/spanner",
"cloud.google.com/go/spanner/admin/database/apiv1",
"cloud.google.com/go/storage",
"github.com/aws/aws-sdk-go/aws",
"github.com/aws/aws-sdk-go/aws/session",
"github.com/aws/aws-sdk-go/service/s3",
"github.com/aws/aws-sdk-go/service/s3/s3iface",
"github.com/cockroachdb/cockroach-go/crdb",
"github.com/cznic/ql/driver",
"github.com/dhui/dktest",
"github.com/docker/docker/api/types",
"github.com/docker/docker/api/types/container",
"github.com/docker/docker/api/types/network",
"github.com/docker/docker/client",
"github.com/fsouza/fake-gcs-server/fakestorage",
"github.com/go-sql-driver/mysql",
"github.com/gocql/gocql",
"github.com/google/go-github/github",
"github.com/kshvakov/clickhouse",
"github.com/lib/pq",
"github.com/mattn/go-sqlite3",
"github.com/mongodb/mongo-go-driver/bson",
"github.com/mongodb/mongo-go-driver/mongo",
"github.com/mongodb/mongo-go-driver/x/network/connstring",
"golang.org/x/net/context",
"golang.org/x/tools/godoc/vfs",
"golang.org/x/tools/godoc/vfs/mapfs",
"google.golang.org/api/iterator",
"google.golang.org/genproto/googleapis/spanner/admin/database/v1",
]
solver-name = "gps-cdcl"
solver-version = 1

106
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@@ -0,0 +1,106 @@
# Gopkg.toml example
#
# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
# for detailed Gopkg.toml documentation.
#
# required = ["github.com/user/thing/cmd/thing"]
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
#
# [[constraint]]
# name = "github.com/user/project"
# version = "1.0.0"
#
# [[constraint]]
# name = "github.com/user/project2"
# branch = "dev"
# source = "github.com/myfork/project2"
#
# [[override]]
# name = "github.com/x/y"
# version = "2.4.0"
#
# [prune]
# non-go = false
# go-tests = true
# unused-packages = true
[[constraint]]
name = "github.com/aws/aws-sdk-go"
version = "1.15.34"
[[constraint]]
branch = "master"
name = "github.com/cockroachdb/cockroach-go"
[[constraint]]
name = "github.com/cznic/ql"
version = "1.2.0"
[[constraint]]
name = "github.com/docker/docker"
revision = "453f2b8b40b923862ce1c08c11531ff5042770f1"
[[constraint]]
name = "github.com/fsouza/fake-gcs-server"
version = "1.2.0"
[[constraint]]
name = "github.com/go-sql-driver/mysql"
version = "v1.4.0"
[[constraint]]
branch = "master"
name = "github.com/gocql/gocql"
[[constraint]]
name = "github.com/google/go-github"
version = "17.0.0"
[[constraint]]
name = "github.com/kshvakov/clickhouse"
version = "1.3.4"
[[constraint]]
name = "github.com/lib/pq"
version = "1.0.0"
[[constraint]]
name = "github.com/mattn/go-sqlite3"
version = "1.9.0"
[[constraint]]
branch = "master"
name = "golang.org/x/net"
[[constraint]]
branch = "master"
name = "google.golang.org/api"
[[constraint]]
branch = "master"
name = "google.golang.org/genproto"
[[constraint]]
name = "github.com/mongodb/mongo-go-driver"
version = "0.1.0"
[[override]]
name = "cloud.google.com/go"
version = "0.27.0"
[[override]]
branch = "master"
name = "golang.org/x/tools"
[[override]]
branch = "master"
name = "github.com/docker/distribution"
[prune]
go-tests = true
unused-packages = true
[[constraint]]
name = "github.com/dhui/dktest"
version = "0.3.0"

28
vendor/github.com/golang-migrate/migrate/v4/LICENSE generated vendored Normal file
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@@ -0,0 +1,28 @@
The MIT License (MIT)
Original Work
Copyright (c) 2016 Matthias Kadenbach
https://github.com/mattes/migrate
Modified Work
Copyright (c) 2018 Dale Hui
https://github.com/golang-migrate/migrate
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

View File

@@ -0,0 +1,81 @@
# Migrations
## Migration Filename Format
A single logical migration is represented as two separate migration files, one
to migrate "up" to the specified version from the previous version, and a second
to migrate back "down" to the previous version. These migrations can be provided
by any one of the supported [migration sources](./README.md#migration-sources).
The ordering and direction of the migration files is determined by the filenames
used for them. `migrate` expects the filenames of migrations to have the format:
{version}_{title}.up.{extension}
{version}_{title}.down.{extension}
The `title` of each migration is unused, and is only for readability. Similarly,
the `extension` of the migration files is not checked by the library, and should
be an appropriate format for the database in use (`.sql` for SQL variants, for
instance).
Versions of migrations may be represented as any 64 bit unsigned integer.
All migrations are applied upward in order of increasing version number, and
downward by decreasing version number.
Common versioning schemes include incrementing integers:
1_initialize_schema.down.sql
1_initialize_schema.up.sql
2_add_table.down.sql
2_add_table.up.sql
...
Or timestamps at an appropriate resolution:
1500360784_initialize_schema.down.sql
1500360784_initialize_schema.up.sql
1500445949_add_table.down.sql
1500445949_add_table.up.sql
...
But any scheme resulting in distinct, incrementing integers as versions is valid.
It is suggested that the version number of corresponding `up` and `down` migration
files be equivalent for clarity, but they are allowed to differ so long as the
relative ordering of the migrations is preserved.
The migration files are permitted to be empty, so in the event that a migration
is a no-op or is irreversible, it is recommended to still include both migration
files, and either leaving them empty or adding a comment as appropriate.
## Migration Content Format
The format of the migration files themselves varies between database systems.
Different databases have different semantics around schema changes and when and
how they are allowed to occur
(for instance, [if schema changes can occur within a transaction](https://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis)).
As such, the `migrate` library has little to no checking around the format of
migration sources. The migration files are generally processed directly by the
drivers as raw operations.
## Reversibility of Migrations
Best practice for writing schema migration is that all migrations should be
reversible. It should in theory be possible for run migrations down and back up
through any and all versions with the state being fully cleaned and recreated
by doing so.
By adhering to this recommended practice, development and deployment of new code
is cleaner and easier (cleaning database state for a new feature should be as
easy as migrating down to a prior version, and back up to the latest).
As opposed to some other migration libraries, `migrate` represents up and down
migrations as separate files. This prevents any non-standard file syntax from
being introduced which may result in unintended behavior or errors, depending
on what database is processing the file.
While it is technically possible for an up or down migration to exist on its own
without an equivalently versioned counterpart, it is strongly recommended to
always include a down migration which cleans up the state of the corresponding
up migration.

118
vendor/github.com/golang-migrate/migrate/v4/Makefile generated vendored Normal file
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SOURCE ?= file go_bindata github aws_s3 google_cloud_storage godoc_vfs
DATABASE ?= postgres mysql redshift cassandra spanner cockroachdb clickhouse mongodb
VERSION ?= $(shell git describe --tags 2>/dev/null | cut -c 2-)
TEST_FLAGS ?=
REPO_OWNER ?= $(shell cd .. && basename "$$(pwd)")
COVERAGE_DIR ?= .coverage
build-cli: clean
-mkdir ./cli/build
cd ./cmd/migrate && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o ../../cli/build/migrate.linux-amd64 -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
cd ./cmd/migrate && CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -a -o ../../cli/build/migrate.darwin-amd64 -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
cd ./cmd/migrate && CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -a -o ../../cli/build/migrate.windows-amd64.exe -ldflags='-X main.Version=$(VERSION) -extldflags "-static"' -tags '$(DATABASE) $(SOURCE)' .
cd ./cli/build && find . -name 'migrate*' | xargs -I{} tar czf {}.tar.gz {}
cd ./cli/build && shasum -a 256 * > sha256sum.txt
cat ./cli/build/sha256sum.txt
clean:
-rm -r ./cli/build
test-short:
make test-with-flags --ignore-errors TEST_FLAGS='-short'
test:
@-rm -r $(COVERAGE_DIR)
@mkdir $(COVERAGE_DIR)
make test-with-flags TEST_FLAGS='-v -race -covermode atomic -coverprofile $$(COVERAGE_DIR)/_$$(RAND).txt -bench=. -benchmem -timeout 20m'
@echo 'mode: atomic' > $(COVERAGE_DIR)/combined.txt
@cat $(COVERAGE_DIR)/_*.txt | grep -v 'mode: atomic' >> $(COVERAGE_DIR)/combined.txt
test-with-flags:
@echo SOURCE: $(SOURCE)
@echo DATABASE: $(DATABASE)
@go test $(TEST_FLAGS) .
@go test $(TEST_FLAGS) ./cli/...
@go test $(TEST_FLAGS) ./database
@go test $(TEST_FLAGS) ./testing/...
@echo -n '$(SOURCE)' | tr -s ' ' '\n' | xargs -I{} go test $(TEST_FLAGS) ./source/{}
@go test $(TEST_FLAGS) ./source/testing/...
@go test $(TEST_FLAGS) ./source/stub/...
@echo -n '$(DATABASE)' | tr -s ' ' '\n' | xargs -I{} go test $(TEST_FLAGS) ./database/{}
@go test $(TEST_FLAGS) ./database/testing/...
@go test $(TEST_FLAGS) ./database/stub/...
kill-orphaned-docker-containers:
docker rm -f $(shell docker ps -aq --filter label=migrate_test)
html-coverage:
go tool cover -html=$(COVERAGE_DIR)/combined.txt
list-external-deps:
$(call external_deps,'.')
$(call external_deps,'./cli/...')
$(call external_deps,'./testing/...')
$(foreach v, $(SOURCE), $(call external_deps,'./source/$(v)/...'))
$(call external_deps,'./source/testing/...')
$(call external_deps,'./source/stub/...')
$(foreach v, $(DATABASE), $(call external_deps,'./database/$(v)/...'))
$(call external_deps,'./database/testing/...')
$(call external_deps,'./database/stub/...')
restore-import-paths:
find . -name '*.go' -type f -execdir sed -i '' s%\"github.com/$(REPO_OWNER)/migrate%\"github.com/mattes/migrate%g '{}' \;
rewrite-import-paths:
find . -name '*.go' -type f -execdir sed -i '' s%\"github.com/mattes/migrate%\"github.com/$(REPO_OWNER)/migrate%g '{}' \;
# example: fswatch -0 --exclude .godoc.pid --event Updated . | xargs -0 -n1 -I{} make docs
docs:
-make kill-docs
nohup godoc -play -http=127.0.0.1:6064 </dev/null >/dev/null 2>&1 & echo $$! > .godoc.pid
cat .godoc.pid
kill-docs:
@cat .godoc.pid
kill -9 $$(cat .godoc.pid)
rm .godoc.pid
open-docs:
open http://localhost:6064/pkg/github.com/$(REPO_OWNER)/migrate
# example: make release V=0.0.0
release:
git tag v$(V)
@read -p "Press enter to confirm and push to origin ..." && git push origin v$(V)
define external_deps
@echo '-- $(1)'; go list -f '{{join .Deps "\n"}}' $(1) | grep -v github.com/$(REPO_OWNER)/migrate | xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}'
endef
.PHONY: build-cli clean test-short test test-with-flags html-coverage \
restore-import-paths rewrite-import-paths list-external-deps release \
docs kill-docs open-docs kill-orphaned-docker-containers
SHELL = /bin/bash
RAND = $(shell echo $$RANDOM)

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[![Build Status](https://img.shields.io/travis/com/golang-migrate/migrate/master.svg)](https://travis-ci.com/golang-migrate/migrate)
[![GoDoc](https://godoc.org/github.com/golang-migrate/migrate?status.svg)](https://godoc.org/github.com/golang-migrate/migrate)
[![Coverage Status](https://img.shields.io/coveralls/github/golang-migrate/migrate/master.svg)](https://coveralls.io/github/golang-migrate/migrate?branch=master)
[![packagecloud.io](https://img.shields.io/badge/deb-packagecloud.io-844fec.svg)](https://packagecloud.io/golang-migrate/migrate?filter=debs)
[![Docker Pulls](https://img.shields.io/docker/pulls/migrate/migrate.svg)](https://hub.docker.com/r/migrate/migrate/)
![Supported Go Versions](https://img.shields.io/badge/Go-1.10%2C%201.11-lightgrey.svg)
[![GitHub Release](https://img.shields.io/github/release/golang-migrate/migrate.svg)](https://github.com/golang-migrate/migrate/releases)
# migrate
__Database migrations written in Go. Use as [CLI](#cli-usage) or import as [library](#use-in-your-go-project).__
* Migrate reads migrations from [sources](#migration-sources)
and applies them in correct order to a [database](#databases).
* Drivers are "dumb", migrate glues everything together and makes sure the logic is bulletproof.
(Keeps the drivers lightweight, too.)
* Database drivers don't assume things or try to correct user input. When in doubt, fail.
Forked from [mattes/migrate](https://github.com/mattes/migrate)
## Databases
Database drivers run migrations. [Add a new database?](database/driver.go)
* [PostgreSQL](database/postgres)
* [Redshift](database/redshift)
* [Ql](database/ql)
* [Cassandra](database/cassandra)
* [SQLite](database/sqlite3) ([todo #165](https://github.com/mattes/migrate/issues/165))
* [MySQL/ MariaDB](database/mysql)
* [Neo4j](database/neo4j) ([todo #167](https://github.com/mattes/migrate/issues/167))
* [MongoDB](database/mongodb)
* [CrateDB](database/crate) ([todo #170](https://github.com/mattes/migrate/issues/170))
* [Shell](database/shell) ([todo #171](https://github.com/mattes/migrate/issues/171))
* [Google Cloud Spanner](database/spanner)
* [CockroachDB](database/cockroachdb)
* [ClickHouse](database/clickhouse)
### Database URLs
Database connection strings are specified via URLs. The URL format is driver dependent but generally has the form: `dbdriver://username:password@host:port/dbname?option1=true&option2=false`
Any [reserved URL characters](https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_reserved_characters) need to be escaped. Note, the `%` character also [needs to be escaped](https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_the_percent_character)
Explicitly, the following characters need to be escaped:
`!`, `#`, `$`, `%`, `&`, `'`, `(`, `)`, `*`, `+`, `,`, `/`, `:`, `;`, `=`, `?`, `@`, `[`, `]`
It's easiest to always run the URL parts of your DB connection URL (e.g. username, password, etc) through an URL encoder. See the example Python snippets below:
```bash
$ python3 -c 'import urllib.parse; print(urllib.parse.quote(input("String to encode: "), ""))'
String to encode: FAKEpassword!#$%&'()*+,/:;=?@[]
FAKEpassword%21%23%24%25%26%27%28%29%2A%2B%2C%2F%3A%3B%3D%3F%40%5B%5D
$ python2 -c 'import urllib; print urllib.quote(raw_input("String to encode: "), "")'
String to encode: FAKEpassword!#$%&'()*+,/:;=?@[]
FAKEpassword%21%23%24%25%26%27%28%29%2A%2B%2C%2F%3A%3B%3D%3F%40%5B%5D
$
```
## Migration Sources
Source drivers read migrations from local or remote sources. [Add a new source?](source/driver.go)
* [Filesystem](source/file) - read from fileystem
* [Go-Bindata](source/go_bindata) - read from embedded binary data ([jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata))
* [Github](source/github) - read from remote Github repositories
* [AWS S3](source/aws_s3) - read from Amazon Web Services S3
* [Google Cloud Storage](source/google_cloud_storage) - read from Google Cloud Platform Storage
## CLI usage
* Simple wrapper around this library.
* Handles ctrl+c (SIGINT) gracefully.
* No config search paths, no config files, no magic ENV var injections.
__[CLI Documentation](cli)__
### Basic usage:
```
$ migrate -source file://path/to/migrations -database postgres://localhost:5432/database up 2
```
### Docker usage
```
$ docker run -v {{ migration dir }}:/migrations --network host migrate/migrate
-path=/migrations/ -database postgres://localhost:5432/database up 2
```
## Use in your Go project
* API is stable and frozen for this release (v3 & v4).
* Uses [Go modules](https://golang.org/cmd/go/#hdr-Modules__module_versions__and_more) to manage dependencies.
* To help prevent database corruptions, it supports graceful stops via `GracefulStop chan bool`.
* Bring your own logger.
* Uses `io.Reader` streams internally for low memory overhead.
* Thread-safe and no goroutine leaks.
__[Go Documentation](https://godoc.org/github.com/golang-migrate/migrate)__
```go
import (
"github.com/golang-migrate/migrate/v4"
_ "github.com/golang-migrate/migrate/v4/database/postgres"
_ "github.com/golang-migrate/migrate/v4/source/github"
)
func main() {
m, err := migrate.New(
"github://mattes:personal-access-token@mattes/migrate_test",
"postgres://localhost:5432/database?sslmode=enable")
m.Steps(2)
}
```
Want to use an existing database client?
```go
import (
"database/sql"
_ "github.com/lib/pq"
"github.com/golang-migrate/migrate/v4"
"github.com/golang-migrate/migrate/v4/database/postgres"
_ "github.com/golang-migrate/migrate/v4/source/file"
)
func main() {
db, err := sql.Open("postgres", "postgres://localhost:5432/database?sslmode=enable")
driver, err := postgres.WithInstance(db, &postgres.Config{})
m, err := migrate.NewWithDatabaseInstance(
"file:///migrations",
"postgres", driver)
m.Steps(2)
}
```
## Migration files
Each migration has an up and down migration. [Why?](FAQ.md#why-two-separate-files-up-and-down-for-a-migration)
```
1481574547_create_users_table.up.sql
1481574547_create_users_table.down.sql
```
[Best practices: How to write migrations.](MIGRATIONS.md)
## Supported Major Versions
Version | Go Modules | Min Go Version | Import | Notes
--------|------------|----------------|--------|------
**master** | :white_check_mark: | 1.10.3 | `import "github.com/golang-migrate/migrate/v4"` | New features and bug fixes arrive here first |
**v4** | :white_check_mark: | 1.10.3 | `import "github.com/golang-migrate/migrate/v4"` | |
**v3** | :x: | 1.10 | `import "github.com/golang-migrate/migrate"` (with package manager) or `import "gopkg.in/golang-migrate/migrate.v3"` (not recommended) | Only security fixes are backported. Only use if your project is not using Go modules. |
## Development and Contributing
Yes, please! [`Makefile`](Makefile) is your friend,
read the [development guide](CONTRIBUTING.md).
Also have a look at the [FAQ](FAQ.md).
---
Looking for alternatives? [https://awesome-go.com/#database](https://awesome-go.com/#database).

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// Package database provides the Database interface.
// All database drivers must implement this interface, register themselves,
// optionally provide a `WithInstance` function and pass the tests
// in package database/testing.
package database
import (
"fmt"
"io"
nurl "net/url"
"sync"
)
var (
ErrLocked = fmt.Errorf("can't acquire lock")
)
const NilVersion int = -1
var driversMu sync.RWMutex
var drivers = make(map[string]Driver)
// Driver is the interface every database driver must implement.
//
// How to implement a database driver?
// 1. Implement this interface.
// 2. Optionally, add a function named `WithInstance`.
// This function should accept an existing DB instance and a Config{} struct
// and return a driver instance.
// 3. Add a test that calls database/testing.go:Test()
// 4. Add own tests for Open(), WithInstance() (when provided) and Close().
// All other functions are tested by tests in database/testing.
// Saves you some time and makes sure all database drivers behave the same way.
// 5. Call Register in init().
// 6. Create a migrate/cli/build_<driver-name>.go file
// 7. Add driver name in 'DATABASE' variable in Makefile
//
// Guidelines:
// * Don't try to correct user input. Don't assume things.
// When in doubt, return an error and explain the situation to the user.
// * All configuration input must come from the URL string in func Open()
// or the Config{} struct in WithInstance. Don't os.Getenv().
type Driver interface {
// Open returns a new driver instance configured with parameters
// coming from the URL string. Migrate will call this function
// only once per instance.
Open(url string) (Driver, error)
// Close closes the underlying database instance managed by the driver.
// Migrate will call this function only once per instance.
Close() error
// Lock should acquire a database lock so that only one migration process
// can run at a time. Migrate will call this function before Run is called.
// If the implementation can't provide this functionality, return nil.
// Return database.ErrLocked if database is already locked.
Lock() error
// Unlock should release the lock. Migrate will call this function after
// all migrations have been run.
Unlock() error
// Run applies a migration to the database. migration is garantueed to be not nil.
Run(migration io.Reader) error
// SetVersion saves version and dirty state.
// Migrate will call this function before and after each call to Run.
// version must be >= -1. -1 means NilVersion.
SetVersion(version int, dirty bool) error
// Version returns the currently active version and if the database is dirty.
// When no migration has been applied, it must return version -1.
// Dirty means, a previous migration failed and user interaction is required.
Version() (version int, dirty bool, err error)
// Drop deletes everything in the database.
Drop() error
}
// Open returns a new driver instance.
func Open(url string) (Driver, error) {
u, err := nurl.Parse(url)
if err != nil {
return nil, fmt.Errorf("Unable to parse URL. Did you escape all reserved URL characters? "+
"See: https://github.com/golang-migrate/migrate#database-urls Error: %v", err)
}
if u.Scheme == "" {
return nil, fmt.Errorf("database driver: invalid URL scheme")
}
driversMu.RLock()
d, ok := drivers[u.Scheme]
driversMu.RUnlock()
if !ok {
return nil, fmt.Errorf("database driver: unknown driver %v (forgotten import?)", u.Scheme)
}
return d.Open(url)
}
// Register globally registers a driver.
func Register(name string, driver Driver) {
driversMu.Lock()
defer driversMu.Unlock()
if driver == nil {
panic("Register driver is nil")
}
if _, dup := drivers[name]; dup {
panic("Register called twice for driver " + name)
}
drivers[name] = driver
}
// List lists the registered drivers
func List() []string {
driversMu.RLock()
defer driversMu.RUnlock()
names := make([]string, 0, len(drivers))
for n := range drivers {
names = append(names, n)
}
return names
}

View File

@@ -0,0 +1,27 @@
package database
import (
"fmt"
)
// Error should be used for errors involving queries ran against the database
type Error struct {
// Optional: the line number
Line uint
// Query is a query excerpt
Query []byte
// Err is a useful/helping error message for humans
Err string
// OrigErr is the underlying error
OrigErr error
}
func (e Error) Error() string {
if len(e.Err) == 0 {
return fmt.Sprintf("%v in line %v: %s", e.OrigErr, e.Line, e.Query)
}
return fmt.Sprintf("%v in line %v: %s (details: %v)", e.Err, e.Line, e.Query, e.OrigErr)
}

View File

@@ -0,0 +1,214 @@
package sqlite3
import (
"database/sql"
"fmt"
"github.com/golang-migrate/migrate/v4"
"github.com/golang-migrate/migrate/v4/database"
_ "github.com/mattn/go-sqlite3"
"io"
"io/ioutil"
nurl "net/url"
"strings"
)
func init() {
database.Register("sqlite3", &Sqlite{})
}
var DefaultMigrationsTable = "schema_migrations"
var (
ErrDatabaseDirty = fmt.Errorf("database is dirty")
ErrNilConfig = fmt.Errorf("no config")
ErrNoDatabaseName = fmt.Errorf("no database name")
)
type Config struct {
MigrationsTable string
DatabaseName string
}
type Sqlite struct {
db *sql.DB
isLocked bool
config *Config
}
func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
if config == nil {
return nil, ErrNilConfig
}
if err := instance.Ping(); err != nil {
return nil, err
}
if len(config.MigrationsTable) == 0 {
config.MigrationsTable = DefaultMigrationsTable
}
mx := &Sqlite{
db: instance,
config: config,
}
if err := mx.ensureVersionTable(); err != nil {
return nil, err
}
return mx, nil
}
func (m *Sqlite) ensureVersionTable() error {
query := fmt.Sprintf(`
CREATE TABLE IF NOT EXISTS %s (version uint64,dirty bool);
CREATE UNIQUE INDEX IF NOT EXISTS version_unique ON %s (version);
`, DefaultMigrationsTable, DefaultMigrationsTable)
if _, err := m.db.Exec(query); err != nil {
return err
}
return nil
}
func (m *Sqlite) Open(url string) (database.Driver, error) {
purl, err := nurl.Parse(url)
if err != nil {
return nil, err
}
dbfile := strings.Replace(migrate.FilterCustomQuery(purl).String(), "sqlite3://", "", 1)
db, err := sql.Open("sqlite3", dbfile)
if err != nil {
return nil, err
}
migrationsTable := purl.Query().Get("x-migrations-table")
if len(migrationsTable) == 0 {
migrationsTable = DefaultMigrationsTable
}
mx, err := WithInstance(db, &Config{
DatabaseName: purl.Path,
MigrationsTable: migrationsTable,
})
if err != nil {
return nil, err
}
return mx, nil
}
func (m *Sqlite) Close() error {
return m.db.Close()
}
func (m *Sqlite) Drop() error {
query := `SELECT name FROM sqlite_master WHERE type = 'table';`
tables, err := m.db.Query(query)
if err != nil {
return &database.Error{OrigErr: err, Query: []byte(query)}
}
defer tables.Close()
tableNames := make([]string, 0)
for tables.Next() {
var tableName string
if err := tables.Scan(&tableName); err != nil {
return err
}
if len(tableName) > 0 {
tableNames = append(tableNames, tableName)
}
}
if len(tableNames) > 0 {
for _, t := range tableNames {
query := "DROP TABLE " + t
err = m.executeQuery(query)
if err != nil {
return &database.Error{OrigErr: err, Query: []byte(query)}
}
}
if err := m.ensureVersionTable(); err != nil {
return err
}
query := "VACUUM"
_, err = m.db.Query(query)
if err != nil {
return &database.Error{OrigErr: err, Query: []byte(query)}
}
}
return nil
}
func (m *Sqlite) Lock() error {
if m.isLocked {
return database.ErrLocked
}
m.isLocked = true
return nil
}
func (m *Sqlite) Unlock() error {
if !m.isLocked {
return nil
}
m.isLocked = false
return nil
}
func (m *Sqlite) Run(migration io.Reader) error {
migr, err := ioutil.ReadAll(migration)
if err != nil {
return err
}
query := string(migr[:])
return m.executeQuery(query)
}
func (m *Sqlite) executeQuery(query string) error {
tx, err := m.db.Begin()
if err != nil {
return &database.Error{OrigErr: err, Err: "transaction start failed"}
}
if _, err := tx.Exec(query); err != nil {
tx.Rollback()
return &database.Error{OrigErr: err, Query: []byte(query)}
}
if err := tx.Commit(); err != nil {
return &database.Error{OrigErr: err, Err: "transaction commit failed"}
}
return nil
}
func (m *Sqlite) SetVersion(version int, dirty bool) error {
tx, err := m.db.Begin()
if err != nil {
return &database.Error{OrigErr: err, Err: "transaction start failed"}
}
query := "DELETE FROM " + m.config.MigrationsTable
if _, err := tx.Exec(query); err != nil {
return &database.Error{OrigErr: err, Query: []byte(query)}
}
if version >= 0 {
query := fmt.Sprintf(`INSERT INTO %s (version, dirty) VALUES (%d, '%t')`, m.config.MigrationsTable, version, dirty)
if _, err := tx.Exec(query); err != nil {
tx.Rollback()
return &database.Error{OrigErr: err, Query: []byte(query)}
}
}
if err := tx.Commit(); err != nil {
return &database.Error{OrigErr: err, Err: "transaction commit failed"}
}
return nil
}
func (m *Sqlite) Version() (version int, dirty bool, err error) {
query := "SELECT version, dirty FROM " + m.config.MigrationsTable + " LIMIT 1"
err = m.db.QueryRow(query).Scan(&version, &dirty)
if err != nil {
return database.NilVersion, false, nil
}
return version, dirty, nil
}

View File

@@ -0,0 +1,19 @@
package database
import (
"fmt"
"hash/crc32"
"strings"
)
const advisoryLockIdSalt uint = 1486364155
// GenerateAdvisoryLockId inspired by rails migrations, see https://goo.gl/8o9bCT
func GenerateAdvisoryLockId(databaseName string, additionalNames ...string) (string, error) {
if len(additionalNames) > 0 {
databaseName = strings.Join(append(additionalNames, databaseName), "\x00")
}
sum := crc32.ChecksumIEEE([]byte(databaseName))
sum = sum * uint32(advisoryLockIdSalt)
return fmt.Sprintf("%v", sum), nil
}

View File

@@ -0,0 +1,5 @@
#!/bin/bash
echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin && \
docker build --build-arg VERSION="$TRAVIS_TAG" . -t migrate/migrate -t migrate/migrate:"$TRAVIS_TAG" && \
docker push migrate/migrate:"$TRAVIS_TAG" && docker push migrate/migrate

52
vendor/github.com/golang-migrate/migrate/v4/go.mod generated vendored Normal file
View File

@@ -0,0 +1,52 @@
module github.com/golang-migrate/migrate/v4
require (
cloud.google.com/go v0.34.0
github.com/aws/aws-sdk-go v1.15.54
github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 // indirect
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
github.com/cockroachdb/apd v1.1.0 // indirect
github.com/cockroachdb/cockroach-go v0.0.0-20181001143604-e0a95dfd547c
github.com/cznic/ql v1.2.0
github.com/dhui/dktest v0.3.0
github.com/docker/docker v0.7.3-0.20190108045446-77df18c24acf
github.com/fsouza/fake-gcs-server v1.3.0
github.com/go-ini/ini v1.39.0 // indirect
github.com/go-sql-driver/mysql v1.4.1
github.com/go-stack/stack v1.8.0 // indirect
github.com/gocql/gocql v0.0.0-20181124151448-70385f88b28b
github.com/google/go-github v17.0.0+incompatible
github.com/google/go-querystring v1.0.0 // indirect
github.com/google/martian v2.1.0+incompatible // indirect
github.com/gopherjs/gopherjs v0.0.0-20181004151105-1babbf986f6f // indirect
github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
github.com/jackc/pgx v3.2.0+incompatible // indirect
github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af // indirect
github.com/jtolds/gls v4.2.1+incompatible // indirect
github.com/kr/pretty v0.1.0 // indirect
github.com/kshvakov/clickhouse v1.3.4
github.com/lib/pq v1.0.0
github.com/mattn/go-sqlite3 v1.9.0
github.com/mongodb/mongo-go-driver v0.1.0
github.com/pkg/errors v0.8.1 // indirect
github.com/satori/go.uuid v1.2.0 // indirect
github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24 // indirect
github.com/sirupsen/logrus v1.3.0 // indirect
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a // indirect
github.com/stretchr/testify v1.3.0 // indirect
github.com/tidwall/pretty v0.0.0-20180105212114-65a9db5fad51 // indirect
github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c // indirect
github.com/xdg/stringprep v1.0.0 // indirect
golang.org/x/crypto v0.0.0-20190103213133-ff983b9c42bc // indirect
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890 // indirect
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 // indirect
golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2 // indirect
golang.org/x/tools v0.0.0-20190108222858-421f03a57a64
google.golang.org/api v0.0.0-20181015145326-625cd1887957
google.golang.org/appengine v1.4.0 // indirect
google.golang.org/genproto v0.0.0-20190108161440-ae2f86662275
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
gopkg.in/ini.v1 v1.39.0 // indirect
)

238
vendor/github.com/golang-migrate/migrate/v4/go.sum generated vendored Normal file
View File

@@ -0,0 +1,238 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.28.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
contrib.go.opencensus.io/exporter/stackdriver v0.6.0/go.mod h1:QeFzMJDAw8TXt5+aRaSuE8l5BwaMIOIlaVkBOPRuMuw=
git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
git.apache.org/thrift.git v0.0.0-20180924222215-a9235805469b/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
github.com/Microsoft/go-winio v0.4.11 h1:zoIOcVf0xPN1tnMVbTtEdI+P8OofVk3NObnwOQ6nK2Q=
github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEVMRuU21PR1EtLVZJmdB18Gu3Rw=
github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
github.com/aws/aws-sdk-go v1.15.54 h1:yNFryYgHYlEuNnMM74EZgAaOM2BsJvu77/ev9I9GHlU=
github.com/aws/aws-sdk-go v1.15.54/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 h1:mXoPYz/Ul5HYEDvkta6I8/rnYM5gSdSV2tJ6XbZuEtY=
github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932/go.mod h1:NOuUCSz6Q9T7+igc/hlvDOUdtWKryOrtFyIVABv/p7k=
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY=
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
github.com/cockroachdb/cockroach-go v0.0.0-20181001143604-e0a95dfd547c h1:2zRrJWIt/f9c9HhNHAgrRgq0San5gRRUJTBXLkchal0=
github.com/cockroachdb/cockroach-go v0.0.0-20181001143604-e0a95dfd547c/go.mod h1:XGLbWH/ujMcbPbhZq52Nv6UrCghb1yGn//133kEsvDk=
github.com/cznic/b v0.0.0-20180115125044-35e9bbe41f07 h1:UHFGPvSxX4C4YBApSPvmUfL8tTvWLj2ryqvT9K4Jcuk=
github.com/cznic/b v0.0.0-20180115125044-35e9bbe41f07/go.mod h1:URriBxXwVq5ijiJ12C7iIZqlA69nTlI+LgI6/pwftG8=
github.com/cznic/fileutil v0.0.0-20180108211300-6a051e75936f h1:7uSNgsgcarNk4oiN/nNkO0J7KAjlsF5Yv5Gf/tFdHas=
github.com/cznic/fileutil v0.0.0-20180108211300-6a051e75936f/go.mod h1:8S58EK26zhXSxzv7NQFpnliaOQsmDUxvoQO3rt154Vg=
github.com/cznic/golex v0.0.0-20170803123110-4ab7c5e190e4 h1:CVAqftqbj+exlab+8KJQrE+kNIVlQfJt58j4GxCMF1s=
github.com/cznic/golex v0.0.0-20170803123110-4ab7c5e190e4/go.mod h1:+bmmJDNmKlhWNG+gwWCkaBoTy39Fs+bzRxVBzoTQbIc=
github.com/cznic/internal v0.0.0-20180608152220-f44710a21d00 h1:FHpbUtp2K8X53/b4aFNj4my5n+i3x+CQCZWNuHWH/+E=
github.com/cznic/internal v0.0.0-20180608152220-f44710a21d00/go.mod h1:olo7eAdKwJdXxb55TKGLiJ6xt1H0/tiiRCWKVLmtjY4=
github.com/cznic/lldb v1.1.0 h1:AIA+ham6TSJ+XkMe8imQ/g8KPzMUVWAwqUQQdtuMsHs=
github.com/cznic/lldb v1.1.0/go.mod h1:FIZVUmYUVhPwRiPzL8nD/mpFcJ/G7SSXjjXYG4uRI3A=
github.com/cznic/mathutil v0.0.0-20180504122225-ca4c9f2c1369 h1:XNT/Zf5l++1Pyg08/HV04ppB0gKxAqtZQBRYiYrUuYk=
github.com/cznic/mathutil v0.0.0-20180504122225-ca4c9f2c1369/go.mod h1:e6NPNENfs9mPDVNRekM7lKScauxd5kXTr1Mfyig6TDM=
github.com/cznic/ql v1.2.0 h1:lcKp95ZtdF0XkWhGnVIXGF8dVD2X+ClS08tglKtf+ak=
github.com/cznic/ql v1.2.0/go.mod h1:FbpzhyZrqr0PVlK6ury+PoW3T0ODUV22OeWIxcaOrSE=
github.com/cznic/sortutil v0.0.0-20150617083342-4c7342852e65 h1:hxuZop6tSoOi0sxFzoGGYdRqNrPubyaIf9KoBG9tPiE=
github.com/cznic/sortutil v0.0.0-20150617083342-4c7342852e65/go.mod h1:q2w6Bg5jeox1B+QkJ6Wp/+Vn0G/bo3f1uY7Fn3vivIQ=
github.com/cznic/strutil v0.0.0-20171016134553-529a34b1c186 h1:0rkFMAbn5KBKNpJyHQ6Prb95vIKanmAe62KxsrN+sqA=
github.com/cznic/strutil v0.0.0-20171016134553-529a34b1c186/go.mod h1:AHHPPPXTw0h6pVabbcbyGRK1DckRn7r/STdZEeIDzZc=
github.com/cznic/zappy v0.0.0-20160723133515-2533cb5b45cc h1:YKKpTb2BrXN2GYyGaygIdis1vXbE7SSAG9axGWIMClg=
github.com/cznic/zappy v0.0.0-20160723133515-2533cb5b45cc/go.mod h1:Y1SNZ4dRUOKXshKUbwUapqNncRrho4mkjQebgEHZLj8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dhui/dktest v0.3.0 h1:kwX5a7EkLcjo7VpsPQSYJcKGbXBXdjI9FGjuUj1jn6I=
github.com/dhui/dktest v0.3.0/go.mod h1:cyzIUfGsBEbZ6BT7tnXqAShHSXCZhSNmFl70sZ7c1yc=
github.com/docker/distribution v2.7.0+incompatible h1:neUDAlf3wX6Ml4HdqTrbcOHXtfRN0TFIwt6YFL7N9RU=
github.com/docker/distribution v2.7.0+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/docker v0.7.3-0.20190103212154-2b7e084dc98b h1:Y0C03XhDDcak1Ow6em58mBJmUJjxaMfB5sFttITXE0Q=
github.com/docker/docker v0.7.3-0.20190103212154-2b7e084dc98b/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/docker v0.7.3-0.20190108045446-77df18c24acf h1:2v/98rHzs3v6X0AHtoCH9u+e56SdnpogB1Z2fFe1KqQ=
github.com/docker/docker v0.7.3-0.20190108045446-77df18c24acf/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
github.com/docker/go-units v0.3.3 h1:Xk8S3Xj5sLGlG5g67hJmYMmUgXv5N4PhkjJHHqrwnTk=
github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
github.com/edsrzf/mmap-go v0.0.0-20170320065105-0bce6a688712 h1:aaQcKT9WumO6JEJcRyTqFVq4XUZiUcKR2/GI31TOcz8=
github.com/edsrzf/mmap-go v0.0.0-20170320065105-0bce6a688712/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
github.com/fsouza/fake-gcs-server v1.3.0 h1:f2mbomatUsbw8NRY7rzqiiWNn4BRM+Jredz0Pt70Usg=
github.com/fsouza/fake-gcs-server v1.3.0/go.mod h1:Lq+43m2znsXfDKHnQMfdA0HpYYAEJsfizsbpk5k3TLo=
github.com/go-ini/ini v1.25.4/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
github.com/go-ini/ini v1.39.0 h1:/CyW/jTlZLjuzy52jc1XnhJm6IUKEuunpJFpecywNeI=
github.com/go-ini/ini v1.39.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
github.com/go-sql-driver/mysql v1.4.1 h1:g24URVg0OFbNUTx9qqY1IRZ9D9z3iPyi5zKhQZpNwpA=
github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
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github.com/xdg/stringprep v1.0.0/go.mod h1:Jhud4/sHMO4oL310DaZAKk9ZaJ08SJfe+sJh0HrGL1Y=
go.opencensus.io v0.17.0 h1:2Cu88MYg+1LU+WVD+NWwYhyP0kKgRlN9QjWGaX0jKTE=
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golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890 h1:uESlIz09WIHT2I+pasSXcpLYqYK8wHcdCetU3VuMBJE=
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
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golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=
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golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180925112736-b09afc3d579e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190102155601-82a175fd1598 h1:S8GOgffXV1X3fpVG442QRfWOt0iFl79eHJ7OPt725bo=
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golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2 h1:ku9Kvp2ZBWAz3GyvuUH3UV1bZCd7RxH0Qf1epWfIDKc=
golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/time v0.0.0-20181108054448-85acf8d2951c h1:fqgJT0MGcGpPgpWU7VRdRjuArfcOvC4AoJmILihzhDg=
golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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google.golang.org/api v0.0.0-20180921000521-920bb1beccf7/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
google.golang.org/api v0.0.0-20181015145326-625cd1887957 h1:jwCmWUTrTFfjsobRuGurnCQeW4NZKijaIf6yAXwLR0E=
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google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
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12
vendor/github.com/golang-migrate/migrate/v4/log.go generated vendored Normal file
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@@ -0,0 +1,12 @@
package migrate
// Logger is an interface so you can pass in your own
// logging implementation.
type Logger interface {
// Printf is like fmt.Printf
Printf(format string, v ...interface{})
// Verbose should return true when verbose logging output is wanted
Verbose() bool
}

920
vendor/github.com/golang-migrate/migrate/v4/migrate.go generated vendored Normal file
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@@ -0,0 +1,920 @@
// Package migrate reads migrations from sources and runs them against databases.
// Sources are defined by the `source.Driver` and databases by the `database.Driver`
// interface. The driver interfaces are kept "dump", all migration logic is kept
// in this package.
package migrate
import (
"fmt"
"os"
"sync"
"time"
"github.com/golang-migrate/migrate/v4/database"
"github.com/golang-migrate/migrate/v4/source"
)
// DefaultPrefetchMigrations sets the number of migrations to pre-read
// from the source. This is helpful if the source is remote, but has little
// effect for a local source (i.e. file system).
// Please note that this setting has a major impact on the memory usage,
// since each pre-read migration is buffered in memory. See DefaultBufferSize.
var DefaultPrefetchMigrations = uint(10)
// DefaultLockTimeout sets the max time a database driver has to acquire a lock.
var DefaultLockTimeout = 15 * time.Second
var (
ErrNoChange = fmt.Errorf("no change")
ErrNilVersion = fmt.Errorf("no migration")
ErrLocked = fmt.Errorf("database locked")
ErrLockTimeout = fmt.Errorf("timeout: can't acquire database lock")
)
// ErrShortLimit is an error returned when not enough migrations
// can be returned by a source for a given limit.
type ErrShortLimit struct {
Short uint
}
// Error implements the error interface.
func (e ErrShortLimit) Error() string {
return fmt.Sprintf("limit %v short", e.Short)
}
type ErrDirty struct {
Version int
}
func (e ErrDirty) Error() string {
return fmt.Sprintf("Dirty database version %v. Fix and force version.", e.Version)
}
type Migrate struct {
sourceName string
sourceDrv source.Driver
databaseName string
databaseDrv database.Driver
// Log accepts a Logger interface
Log Logger
// GracefulStop accepts `true` and will stop executing migrations
// as soon as possible at a safe break point, so that the database
// is not corrupted.
GracefulStop chan bool
isGracefulStop bool
isLockedMu *sync.Mutex
isLocked bool
// PrefetchMigrations defaults to DefaultPrefetchMigrations,
// but can be set per Migrate instance.
PrefetchMigrations uint
// LockTimeout defaults to DefaultLockTimeout,
// but can be set per Migrate instance.
LockTimeout time.Duration
}
// New returns a new Migrate instance from a source URL and a database URL.
// The URL scheme is defined by each driver.
func New(sourceUrl, databaseUrl string) (*Migrate, error) {
m := newCommon()
sourceName, err := sourceSchemeFromUrl(sourceUrl)
if err != nil {
return nil, err
}
m.sourceName = sourceName
databaseName, err := databaseSchemeFromUrl(databaseUrl)
if err != nil {
return nil, err
}
m.databaseName = databaseName
sourceDrv, err := source.Open(sourceUrl)
if err != nil {
return nil, err
}
m.sourceDrv = sourceDrv
databaseDrv, err := database.Open(databaseUrl)
if err != nil {
return nil, err
}
m.databaseDrv = databaseDrv
return m, nil
}
// NewWithDatabaseInstance returns a new Migrate instance from a source URL
// and an existing database instance. The source URL scheme is defined by each driver.
// Use any string that can serve as an identifier during logging as databaseName.
// You are responsible for closing the underlying database client if necessary.
func NewWithDatabaseInstance(sourceUrl string, databaseName string, databaseInstance database.Driver) (*Migrate, error) {
m := newCommon()
sourceName, err := schemeFromUrl(sourceUrl)
if err != nil {
return nil, err
}
m.sourceName = sourceName
m.databaseName = databaseName
sourceDrv, err := source.Open(sourceUrl)
if err != nil {
return nil, err
}
m.sourceDrv = sourceDrv
m.databaseDrv = databaseInstance
return m, nil
}
// NewWithSourceInstance returns a new Migrate instance from an existing source instance
// and a database URL. The database URL scheme is defined by each driver.
// Use any string that can serve as an identifier during logging as sourceName.
// You are responsible for closing the underlying source client if necessary.
func NewWithSourceInstance(sourceName string, sourceInstance source.Driver, databaseUrl string) (*Migrate, error) {
m := newCommon()
databaseName, err := schemeFromUrl(databaseUrl)
if err != nil {
return nil, err
}
m.databaseName = databaseName
m.sourceName = sourceName
databaseDrv, err := database.Open(databaseUrl)
if err != nil {
return nil, err
}
m.databaseDrv = databaseDrv
m.sourceDrv = sourceInstance
return m, nil
}
// NewWithInstance returns a new Migrate instance from an existing source and
// database instance. Use any string that can serve as an identifier during logging
// as sourceName and databaseName. You are responsible for closing down
// the underlying source and database client if necessary.
func NewWithInstance(sourceName string, sourceInstance source.Driver, databaseName string, databaseInstance database.Driver) (*Migrate, error) {
m := newCommon()
m.sourceName = sourceName
m.databaseName = databaseName
m.sourceDrv = sourceInstance
m.databaseDrv = databaseInstance
return m, nil
}
func newCommon() *Migrate {
return &Migrate{
GracefulStop: make(chan bool, 1),
PrefetchMigrations: DefaultPrefetchMigrations,
LockTimeout: DefaultLockTimeout,
isLockedMu: &sync.Mutex{},
}
}
// Close closes the source and the database.
func (m *Migrate) Close() (source error, database error) {
databaseSrvClose := make(chan error)
sourceSrvClose := make(chan error)
m.logVerbosePrintf("Closing source and database\n")
go func() {
databaseSrvClose <- m.databaseDrv.Close()
}()
go func() {
sourceSrvClose <- m.sourceDrv.Close()
}()
return <-sourceSrvClose, <-databaseSrvClose
}
// Migrate looks at the currently active migration version,
// then migrates either up or down to the specified version.
func (m *Migrate) Migrate(version uint) error {
if err := m.lock(); err != nil {
return err
}
curVersion, dirty, err := m.databaseDrv.Version()
if err != nil {
return m.unlockErr(err)
}
if dirty {
return m.unlockErr(ErrDirty{curVersion})
}
ret := make(chan interface{}, m.PrefetchMigrations)
go m.read(curVersion, int(version), ret)
return m.unlockErr(m.runMigrations(ret))
}
// Steps looks at the currently active migration version.
// It will migrate up if n > 0, and down if n < 0.
func (m *Migrate) Steps(n int) error {
if n == 0 {
return ErrNoChange
}
if err := m.lock(); err != nil {
return err
}
curVersion, dirty, err := m.databaseDrv.Version()
if err != nil {
return m.unlockErr(err)
}
if dirty {
return m.unlockErr(ErrDirty{curVersion})
}
ret := make(chan interface{}, m.PrefetchMigrations)
if n > 0 {
go m.readUp(curVersion, n, ret)
} else {
go m.readDown(curVersion, -n, ret)
}
return m.unlockErr(m.runMigrations(ret))
}
// Up looks at the currently active migration version
// and will migrate all the way up (applying all up migrations).
func (m *Migrate) Up() error {
if err := m.lock(); err != nil {
return err
}
curVersion, dirty, err := m.databaseDrv.Version()
if err != nil {
return m.unlockErr(err)
}
if dirty {
return m.unlockErr(ErrDirty{curVersion})
}
ret := make(chan interface{}, m.PrefetchMigrations)
go m.readUp(curVersion, -1, ret)
return m.unlockErr(m.runMigrations(ret))
}
// Down looks at the currently active migration version
// and will migrate all the way down (applying all down migrations).
func (m *Migrate) Down() error {
if err := m.lock(); err != nil {
return err
}
curVersion, dirty, err := m.databaseDrv.Version()
if err != nil {
return m.unlockErr(err)
}
if dirty {
return m.unlockErr(ErrDirty{curVersion})
}
ret := make(chan interface{}, m.PrefetchMigrations)
go m.readDown(curVersion, -1, ret)
return m.unlockErr(m.runMigrations(ret))
}
// Drop deletes everything in the database.
func (m *Migrate) Drop() error {
if err := m.lock(); err != nil {
return err
}
if err := m.databaseDrv.Drop(); err != nil {
return m.unlockErr(err)
}
return m.unlock()
}
// Run runs any migration provided by you against the database.
// It does not check any currently active version in database.
// Usually you don't need this function at all. Use Migrate,
// Steps, Up or Down instead.
func (m *Migrate) Run(migration ...*Migration) error {
if len(migration) == 0 {
return ErrNoChange
}
if err := m.lock(); err != nil {
return err
}
curVersion, dirty, err := m.databaseDrv.Version()
if err != nil {
return m.unlockErr(err)
}
if dirty {
return m.unlockErr(ErrDirty{curVersion})
}
ret := make(chan interface{}, m.PrefetchMigrations)
go func() {
defer close(ret)
for _, migr := range migration {
if m.PrefetchMigrations > 0 && migr.Body != nil {
m.logVerbosePrintf("Start buffering %v\n", migr.LogString())
} else {
m.logVerbosePrintf("Scheduled %v\n", migr.LogString())
}
ret <- migr
go migr.Buffer()
}
}()
return m.unlockErr(m.runMigrations(ret))
}
// Force sets a migration version.
// It does not check any currently active version in database.
// It resets the dirty state to false.
func (m *Migrate) Force(version int) error {
if version < -1 {
panic("version must be >= -1")
}
if err := m.lock(); err != nil {
return err
}
if err := m.databaseDrv.SetVersion(version, false); err != nil {
return m.unlockErr(err)
}
return m.unlock()
}
// Version returns the currently active migration version.
// If no migration has been applied, yet, it will return ErrNilVersion.
func (m *Migrate) Version() (version uint, dirty bool, err error) {
v, d, err := m.databaseDrv.Version()
if err != nil {
return 0, false, err
}
if v == database.NilVersion {
return 0, false, ErrNilVersion
}
return suint(v), d, nil
}
// read reads either up or down migrations from source `from` to `to`.
// Each migration is then written to the ret channel.
// If an error occurs during reading, that error is written to the ret channel, too.
// Once read is done reading it will close the ret channel.
func (m *Migrate) read(from int, to int, ret chan<- interface{}) {
defer close(ret)
// check if from version exists
if from >= 0 {
if err := m.versionExists(suint(from)); err != nil {
ret <- err
return
}
}
// check if to version exists
if to >= 0 {
if err := m.versionExists(suint(to)); err != nil {
ret <- err
return
}
}
// no change?
if from == to {
ret <- ErrNoChange
return
}
if from < to {
// it's going up
// apply first migration if from is nil version
if from == -1 {
firstVersion, err := m.sourceDrv.First()
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(firstVersion, int(firstVersion))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(firstVersion)
}
// run until we reach target ...
for from < to {
if m.stop() {
return
}
next, err := m.sourceDrv.Next(suint(from))
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(next, int(next))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(next)
}
} else {
// it's going down
// run until we reach target ...
for from > to && from >= 0 {
if m.stop() {
return
}
prev, err := m.sourceDrv.Prev(suint(from))
if os.IsNotExist(err) && to == -1 {
// apply nil migration
migr, err := m.newMigration(suint(from), -1)
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
return
} else if err != nil {
ret <- err
return
}
migr, err := m.newMigration(suint(from), int(prev))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(prev)
}
}
}
// readUp reads up migrations from `from` limitted by `limit`.
// limit can be -1, implying no limit and reading until there are no more migrations.
// Each migration is then written to the ret channel.
// If an error occurs during reading, that error is written to the ret channel, too.
// Once readUp is done reading it will close the ret channel.
func (m *Migrate) readUp(from int, limit int, ret chan<- interface{}) {
defer close(ret)
// check if from version exists
if from >= 0 {
if err := m.versionExists(suint(from)); err != nil {
ret <- err
return
}
}
if limit == 0 {
ret <- ErrNoChange
return
}
count := 0
for count < limit || limit == -1 {
if m.stop() {
return
}
// apply first migration if from is nil version
if from == -1 {
firstVersion, err := m.sourceDrv.First()
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(firstVersion, int(firstVersion))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(firstVersion)
count++
continue
}
// apply next migration
next, err := m.sourceDrv.Next(suint(from))
if os.IsNotExist(err) {
// no limit, but no migrations applied?
if limit == -1 && count == 0 {
ret <- ErrNoChange
return
}
// no limit, reached end
if limit == -1 {
return
}
// reached end, and didn't apply any migrations
if limit > 0 && count == 0 {
ret <- os.ErrNotExist
return
}
// applied less migrations than limit?
if count < limit {
ret <- ErrShortLimit{suint(limit - count)}
return
}
}
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(next, int(next))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(next)
count++
}
}
// readDown reads down migrations from `from` limitted by `limit`.
// limit can be -1, implying no limit and reading until there are no more migrations.
// Each migration is then written to the ret channel.
// If an error occurs during reading, that error is written to the ret channel, too.
// Once readDown is done reading it will close the ret channel.
func (m *Migrate) readDown(from int, limit int, ret chan<- interface{}) {
defer close(ret)
// check if from version exists
if from >= 0 {
if err := m.versionExists(suint(from)); err != nil {
ret <- err
return
}
}
if limit == 0 {
ret <- ErrNoChange
return
}
// no change if already at nil version
if from == -1 && limit == -1 {
ret <- ErrNoChange
return
}
// can't go over limit if already at nil version
if from == -1 && limit > 0 {
ret <- os.ErrNotExist
return
}
count := 0
for count < limit || limit == -1 {
if m.stop() {
return
}
prev, err := m.sourceDrv.Prev(suint(from))
if os.IsNotExist(err) {
// no limit or haven't reached limit, apply "first" migration
if limit == -1 || limit-count > 0 {
firstVersion, err := m.sourceDrv.First()
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(firstVersion, -1)
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
count++
}
if count < limit {
ret <- ErrShortLimit{suint(limit - count)}
}
return
}
if err != nil {
ret <- err
return
}
migr, err := m.newMigration(suint(from), int(prev))
if err != nil {
ret <- err
return
}
ret <- migr
go migr.Buffer()
from = int(prev)
count++
}
}
// runMigrations reads *Migration and error from a channel. Any other type
// sent on this channel will result in a panic. Each migration is then
// proxied to the database driver and run against the database.
// Before running a newly received migration it will check if it's supposed
// to stop execution because it might have received a stop signal on the
// GracefulStop channel.
func (m *Migrate) runMigrations(ret <-chan interface{}) error {
for r := range ret {
if m.stop() {
return nil
}
switch r.(type) {
case error:
return r.(error)
case *Migration:
migr := r.(*Migration)
// set version with dirty state
if err := m.databaseDrv.SetVersion(migr.TargetVersion, true); err != nil {
return err
}
if migr.Body != nil {
m.logVerbosePrintf("Read and execute %v\n", migr.LogString())
if err := m.databaseDrv.Run(migr.BufferedBody); err != nil {
return err
}
}
// set clean state
if err := m.databaseDrv.SetVersion(migr.TargetVersion, false); err != nil {
return err
}
endTime := time.Now()
readTime := migr.FinishedReading.Sub(migr.StartedBuffering)
runTime := endTime.Sub(migr.FinishedReading)
// log either verbose or normal
if m.Log != nil {
if m.Log.Verbose() {
m.logPrintf("Finished %v (read %v, ran %v)\n", migr.LogString(), readTime, runTime)
} else {
m.logPrintf("%v (%v)\n", migr.LogString(), readTime+runTime)
}
}
default:
panic("unknown type")
}
}
return nil
}
// versionExists checks the source if either the up or down migration for
// the specified migration version exists.
func (m *Migrate) versionExists(version uint) error {
// try up migration first
up, _, err := m.sourceDrv.ReadUp(version)
if err == nil {
defer up.Close()
}
if os.IsExist(err) {
return nil
} else if !os.IsNotExist(err) {
return err
}
// then try down migration
down, _, err := m.sourceDrv.ReadDown(version)
if err == nil {
defer down.Close()
}
if os.IsExist(err) {
return nil
} else if !os.IsNotExist(err) {
return err
}
return os.ErrNotExist
}
// stop returns true if no more migrations should be run against the database
// because a stop signal was received on the GracefulStop channel.
// Calls are cheap and this function is not blocking.
func (m *Migrate) stop() bool {
if m.isGracefulStop {
return true
}
select {
case <-m.GracefulStop:
m.isGracefulStop = true
return true
default:
return false
}
}
// newMigration is a helper func that returns a *Migration for the
// specified version and targetVersion.
func (m *Migrate) newMigration(version uint, targetVersion int) (*Migration, error) {
var migr *Migration
if targetVersion >= int(version) {
r, identifier, err := m.sourceDrv.ReadUp(version)
if os.IsNotExist(err) {
// create "empty" migration
migr, err = NewMigration(nil, "", version, targetVersion)
if err != nil {
return nil, err
}
} else if err != nil {
return nil, err
} else {
// create migration from up source
migr, err = NewMigration(r, identifier, version, targetVersion)
if err != nil {
return nil, err
}
}
} else {
r, identifier, err := m.sourceDrv.ReadDown(version)
if os.IsNotExist(err) {
// create "empty" migration
migr, err = NewMigration(nil, "", version, targetVersion)
if err != nil {
return nil, err
}
} else if err != nil {
return nil, err
} else {
// create migration from down source
migr, err = NewMigration(r, identifier, version, targetVersion)
if err != nil {
return nil, err
}
}
}
if m.PrefetchMigrations > 0 && migr.Body != nil {
m.logVerbosePrintf("Start buffering %v\n", migr.LogString())
} else {
m.logVerbosePrintf("Scheduled %v\n", migr.LogString())
}
return migr, nil
}
// lock is a thread safe helper function to lock the database.
// It should be called as late as possible when running migrations.
func (m *Migrate) lock() error {
m.isLockedMu.Lock()
defer m.isLockedMu.Unlock()
if m.isLocked {
return ErrLocked
}
// create done channel, used in the timeout goroutine
done := make(chan bool, 1)
defer func() {
done <- true
}()
// use errchan to signal error back to this context
errchan := make(chan error, 2)
// start timeout goroutine
timeout := time.After(m.LockTimeout)
go func() {
for {
select {
case <-done:
return
case <-timeout:
errchan <- ErrLockTimeout
return
}
}
}()
// now try to acquire the lock
go func() {
if err := m.databaseDrv.Lock(); err != nil {
errchan <- err
} else {
errchan <- nil
}
return
}()
// wait until we either recieve ErrLockTimeout or error from Lock operation
err := <-errchan
if err == nil {
m.isLocked = true
}
return err
}
// unlock is a thread safe helper function to unlock the database.
// It should be called as early as possible when no more migrations are
// expected to be executed.
func (m *Migrate) unlock() error {
m.isLockedMu.Lock()
defer m.isLockedMu.Unlock()
if err := m.databaseDrv.Unlock(); err != nil {
// BUG: Can potentially create a deadlock. Add a timeout.
return err
}
m.isLocked = false
return nil
}
// unlockErr calls unlock and returns a combined error
// if a prevErr is not nil.
func (m *Migrate) unlockErr(prevErr error) error {
if err := m.unlock(); err != nil {
return NewMultiError(prevErr, err)
}
return prevErr
}
// logPrintf writes to m.Log if not nil
func (m *Migrate) logPrintf(format string, v ...interface{}) {
if m.Log != nil {
m.Log.Printf(format, v...)
}
}
// logVerbosePrintf writes to m.Log if not nil. Use for verbose logging output.
func (m *Migrate) logVerbosePrintf(format string, v ...interface{}) {
if m.Log != nil && m.Log.Verbose() {
m.Log.Printf(format, v...)
}
}

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@@ -0,0 +1,154 @@
package migrate
import (
"bufio"
"fmt"
"io"
"time"
)
// DefaultBufferSize sets the in memory buffer size (in Bytes) for every
// pre-read migration (see DefaultPrefetchMigrations).
var DefaultBufferSize = uint(100000)
// Migration holds information about a migration.
// It is initially created from data coming from the source and then
// used when run against the database.
type Migration struct {
// Identifier can be any string to help identifying
// the migration in the source.
Identifier string
// Version is the version of this migration.
Version uint
// TargetVersion is the migration version after this migration
// has been applied to the database.
// Can be -1, implying that this is a NilVersion.
TargetVersion int
// Body holds an io.ReadCloser to the source.
Body io.ReadCloser
// BufferedBody holds an buffered io.Reader to the underlying Body.
BufferedBody io.Reader
// BufferSize defaults to DefaultBufferSize
BufferSize uint
// bufferWriter holds an io.WriteCloser and pipes to BufferBody.
// It's an *Closer for flow control.
bufferWriter io.WriteCloser
// Scheduled is the time when the migration was scheduled/ queued.
Scheduled time.Time
// StartedBuffering is the time when buffering of the migration source started.
StartedBuffering time.Time
// FinishedBuffering is the time when buffering of the migration source finished.
FinishedBuffering time.Time
// FinishedReading is the time when the migration source is fully read.
FinishedReading time.Time
// BytesRead holds the number of Bytes read from the migration source.
BytesRead int64
}
// NewMigration returns a new Migration and sets the body, identifier,
// version and targetVersion. Body can be nil, which turns this migration
// into a "NilMigration". If no identifier is provided, it will default to "<empty>".
// targetVersion can be -1, implying it is a NilVersion.
//
// What is a NilMigration?
// Usually each migration version coming from source is expected to have an
// Up and Down migration. This is not a hard requirement though, leading to
// a situation where only the Up or Down migration is present. So let's say
// the user wants to migrate up to a version that doesn't have the actual Up
// migration, in that case we still want to apply the version, but with an empty
// body. We are calling that a NilMigration, a migration with an empty body.
//
// What is a NilVersion?
// NilVersion is a const(-1). When running down migrations and we are at the
// last down migration, there is no next down migration, the targetVersion should
// be nil. Nil in this case is represented by -1 (because type int).
func NewMigration(body io.ReadCloser, identifier string,
version uint, targetVersion int) (*Migration, error) {
tnow := time.Now()
m := &Migration{
Identifier: identifier,
Version: version,
TargetVersion: targetVersion,
Scheduled: tnow,
}
if body == nil {
if len(identifier) == 0 {
m.Identifier = "<empty>"
}
m.StartedBuffering = tnow
m.FinishedBuffering = tnow
m.FinishedReading = tnow
return m, nil
}
br, bw := io.Pipe()
m.Body = body // want to simulate low latency? newSlowReader(body)
m.BufferSize = DefaultBufferSize
m.BufferedBody = br
m.bufferWriter = bw
return m, nil
}
// String implements string.Stringer and is used in tests.
func (m *Migration) String() string {
return fmt.Sprintf("%v [%v=>%v]", m.Identifier, m.Version, m.TargetVersion)
}
// LogString returns a string describing this migration to humans.
func (m *Migration) LogString() string {
directionStr := "u"
if m.TargetVersion < int(m.Version) {
directionStr = "d"
}
return fmt.Sprintf("%v/%v %v", m.Version, directionStr, m.Identifier)
}
// Buffer buffers Body up to BufferSize.
// Calling this function blocks. Call with goroutine.
func (m *Migration) Buffer() error {
if m.Body == nil {
return nil
}
m.StartedBuffering = time.Now()
b := bufio.NewReaderSize(m.Body, int(m.BufferSize))
// start reading from body, peek won't move the read pointer though
// poor man's solution?
b.Peek(int(m.BufferSize))
m.FinishedBuffering = time.Now()
// write to bufferWriter, this will block until
// something starts reading from m.Buffer
n, err := b.WriteTo(m.bufferWriter)
if err != nil {
return err
}
m.FinishedReading = time.Now()
m.BytesRead = n
// close bufferWriter so Buffer knows that there is no
// more data coming
m.bufferWriter.Close()
// it's safe to close the Body too
m.Body.Close()
return nil
}

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@@ -0,0 +1,118 @@
// Package source provides the Source interface.
// All source drivers must implement this interface, register themselves,
// optionally provide a `WithInstance` function and pass the tests
// in package source/testing.
package source
import (
"fmt"
"io"
nurl "net/url"
"sync"
)
var driversMu sync.RWMutex
var drivers = make(map[string]Driver)
// Driver is the interface every source driver must implement.
//
// How to implement a source driver?
// 1. Implement this interface.
// 2. Optionally, add a function named `WithInstance`.
// This function should accept an existing source instance and a Config{} struct
// and return a driver instance.
// 3. Add a test that calls source/testing.go:Test()
// 4. Add own tests for Open(), WithInstance() (when provided) and Close().
// All other functions are tested by tests in source/testing.
// Saves you some time and makes sure all source drivers behave the same way.
// 5. Call Register in init().
//
// Guidelines:
// * All configuration input must come from the URL string in func Open()
// or the Config{} struct in WithInstance. Don't os.Getenv().
// * Drivers are supposed to be read only.
// * Ideally don't load any contents (into memory) in Open or WithInstance.
type Driver interface {
// Open returns a a new driver instance configured with parameters
// coming from the URL string. Migrate will call this function
// only once per instance.
Open(url string) (Driver, error)
// Close closes the underlying source instance managed by the driver.
// Migrate will call this function only once per instance.
Close() error
// First returns the very first migration version available to the driver.
// Migrate will call this function multiple times.
// If there is no version available, it must return os.ErrNotExist.
First() (version uint, err error)
// Prev returns the previous version for a given version available to the driver.
// Migrate will call this function multiple times.
// If there is no previous version available, it must return os.ErrNotExist.
Prev(version uint) (prevVersion uint, err error)
// Next returns the next version for a given version available to the driver.
// Migrate will call this function multiple times.
// If there is no next version available, it must return os.ErrNotExist.
Next(version uint) (nextVersion uint, err error)
// ReadUp returns the UP migration body and an identifier that helps
// finding this migration in the source for a given version.
// If there is no up migration available for this version,
// it must return os.ErrNotExist.
// Do not start reading, just return the ReadCloser!
ReadUp(version uint) (r io.ReadCloser, identifier string, err error)
// ReadDown returns the DOWN migration body and an identifier that helps
// finding this migration in the source for a given version.
// If there is no down migration available for this version,
// it must return os.ErrNotExist.
// Do not start reading, just return the ReadCloser!
ReadDown(version uint) (r io.ReadCloser, identifier string, err error)
}
// Open returns a new driver instance.
func Open(url string) (Driver, error) {
u, err := nurl.Parse(url)
if err != nil {
return nil, err
}
if u.Scheme == "" {
return nil, fmt.Errorf("source driver: invalid URL scheme")
}
driversMu.RLock()
d, ok := drivers[u.Scheme]
driversMu.RUnlock()
if !ok {
return nil, fmt.Errorf("source driver: unknown driver %v (forgotten import?)", u.Scheme)
}
return d.Open(url)
}
// Register globally registers a driver.
func Register(name string, driver Driver) {
driversMu.Lock()
defer driversMu.Unlock()
if driver == nil {
panic("Register driver is nil")
}
if _, dup := drivers[name]; dup {
panic("Register called twice for driver " + name)
}
drivers[name] = driver
}
// List lists the registered drivers
func List() []string {
driversMu.RLock()
defer driversMu.RUnlock()
names := make([]string, 0, len(drivers))
for n := range drivers {
names = append(names, n)
}
return names
}

View File

@@ -0,0 +1,4 @@
# file
`file:///absolute/path`
`file://relative/path`

View File

@@ -0,0 +1,130 @@
package file
import (
"fmt"
"io"
"io/ioutil"
nurl "net/url"
"os"
"path"
"path/filepath"
"github.com/golang-migrate/migrate/v4/source"
)
func init() {
source.Register("file", &File{})
}
type File struct {
url string
path string
migrations *source.Migrations
}
func (f *File) Open(url string) (source.Driver, error) {
u, err := nurl.Parse(url)
if err != nil {
return nil, err
}
// concat host and path to restore full path
// host might be `.`
p := u.Opaque
if len(p) == 0 {
p = u.Host + u.Path
}
if len(p) == 0 {
// default to current directory if no path
wd, err := os.Getwd()
if err != nil {
return nil, err
}
p = wd
} else if p[0:1] == "." || p[0:1] != "/" {
// make path absolute if relative
abs, err := filepath.Abs(p)
if err != nil {
return nil, err
}
p = abs
}
// scan directory
files, err := ioutil.ReadDir(p)
if err != nil {
return nil, err
}
nf := &File{
url: url,
path: p,
migrations: source.NewMigrations(),
}
for _, fi := range files {
if !fi.IsDir() {
m, err := source.DefaultParse(fi.Name())
if err != nil {
continue // ignore files that we can't parse
}
if !nf.migrations.Append(m) {
return nil, fmt.Errorf("unable to parse file %v", fi.Name())
}
}
}
return nf, nil
}
func (f *File) Close() error {
// nothing do to here
return nil
}
func (f *File) First() (version uint, err error) {
if v, ok := f.migrations.First(); !ok {
return 0, &os.PathError{Op: "first", Path: f.path, Err: os.ErrNotExist}
} else {
return v, nil
}
}
func (f *File) Prev(version uint) (prevVersion uint, err error) {
if v, ok := f.migrations.Prev(version); !ok {
return 0, &os.PathError{Op: fmt.Sprintf("prev for version %v", version), Path: f.path, Err: os.ErrNotExist}
} else {
return v, nil
}
}
func (f *File) Next(version uint) (nextVersion uint, err error) {
if v, ok := f.migrations.Next(version); !ok {
return 0, &os.PathError{Op: fmt.Sprintf("next for version %v", version), Path: f.path, Err: os.ErrNotExist}
} else {
return v, nil
}
}
func (f *File) ReadUp(version uint) (r io.ReadCloser, identifier string, err error) {
if m, ok := f.migrations.Up(version); ok {
r, err := os.Open(path.Join(f.path, m.Raw))
if err != nil {
return nil, "", err
}
return r, m.Identifier, nil
}
return nil, "", &os.PathError{Op: fmt.Sprintf("read version %v", version), Path: f.path, Err: os.ErrNotExist}
}
func (f *File) ReadDown(version uint) (r io.ReadCloser, identifier string, err error) {
if m, ok := f.migrations.Down(version); ok {
r, err := os.Open(path.Join(f.path, m.Raw))
if err != nil {
return nil, "", err
}
return r, m.Identifier, nil
}
return nil, "", &os.PathError{Op: fmt.Sprintf("read version %v", version), Path: f.path, Err: os.ErrNotExist}
}

View File

@@ -0,0 +1,143 @@
package source
import (
"sort"
)
// Direction is either up or down.
type Direction string
const (
Down Direction = "down"
Up Direction = "up"
)
// Migration is a helper struct for source drivers that need to
// build the full directory tree in memory.
// Migration is fully independent from migrate.Migration.
type Migration struct {
// Version is the version of this migration.
Version uint
// Identifier can be any string that helps identifying
// this migration in the source.
Identifier string
// Direction is either Up or Down.
Direction Direction
// Raw holds the raw location path to this migration in source.
// ReadUp and ReadDown will use this.
Raw string
}
// Migrations wraps Migration and has an internal index
// to keep track of Migration order.
type Migrations struct {
index uintSlice
migrations map[uint]map[Direction]*Migration
}
func NewMigrations() *Migrations {
return &Migrations{
index: make(uintSlice, 0),
migrations: make(map[uint]map[Direction]*Migration),
}
}
func (i *Migrations) Append(m *Migration) (ok bool) {
if m == nil {
return false
}
if i.migrations[m.Version] == nil {
i.migrations[m.Version] = make(map[Direction]*Migration)
}
// reject duplicate versions
if _, dup := i.migrations[m.Version][m.Direction]; dup {
return false
}
i.migrations[m.Version][m.Direction] = m
i.buildIndex()
return true
}
func (i *Migrations) buildIndex() {
i.index = make(uintSlice, 0)
for version, _ := range i.migrations {
i.index = append(i.index, version)
}
sort.Sort(i.index)
}
func (i *Migrations) First() (version uint, ok bool) {
if len(i.index) == 0 {
return 0, false
}
return i.index[0], true
}
func (i *Migrations) Prev(version uint) (prevVersion uint, ok bool) {
pos := i.findPos(version)
if pos >= 1 && len(i.index) > pos-1 {
return i.index[pos-1], true
}
return 0, false
}
func (i *Migrations) Next(version uint) (nextVersion uint, ok bool) {
pos := i.findPos(version)
if pos >= 0 && len(i.index) > pos+1 {
return i.index[pos+1], true
}
return 0, false
}
func (i *Migrations) Up(version uint) (m *Migration, ok bool) {
if _, ok := i.migrations[version]; ok {
if mx, ok := i.migrations[version][Up]; ok {
return mx, true
}
}
return nil, false
}
func (i *Migrations) Down(version uint) (m *Migration, ok bool) {
if _, ok := i.migrations[version]; ok {
if mx, ok := i.migrations[version][Down]; ok {
return mx, true
}
}
return nil, false
}
func (i *Migrations) findPos(version uint) int {
if len(i.index) > 0 {
ix := i.index.Search(version)
if ix < len(i.index) && i.index[ix] == version {
return ix
}
}
return -1
}
type uintSlice []uint
func (s uintSlice) Len() int {
return len(s)
}
func (s uintSlice) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
func (s uintSlice) Less(i, j int) bool {
return s[i] < s[j]
}
func (s uintSlice) Search(x uint) int {
return sort.Search(len(s), func(i int) bool { return s[i] >= x })
}

View File

@@ -0,0 +1,39 @@
package source
import (
"fmt"
"regexp"
"strconv"
)
var (
ErrParse = fmt.Errorf("no match")
)
var (
DefaultParse = Parse
DefaultRegex = Regex
)
// Regex matches the following pattern:
// 123_name.up.ext
// 123_name.down.ext
var Regex = regexp.MustCompile(`^([0-9]+)_(.*)\.(` + string(Down) + `|` + string(Up) + `)\.(.*)$`)
// Parse returns Migration for matching Regex pattern.
func Parse(raw string) (*Migration, error) {
m := Regex.FindStringSubmatch(raw)
if len(m) == 5 {
versionUint64, err := strconv.ParseUint(m[1], 10, 64)
if err != nil {
return nil, err
}
return &Migration{
Version: uint(versionUint64),
Identifier: m[2],
Direction: Direction(m[3]),
Raw: raw,
}, nil
}
return nil, ErrParse
}

94
vendor/github.com/golang-migrate/migrate/v4/util.go generated vendored Normal file
View File

@@ -0,0 +1,94 @@
package migrate
import (
"errors"
"fmt"
nurl "net/url"
"strings"
)
// MultiError holds multiple errors.
type MultiError struct {
Errs []error
}
// NewMultiError returns an error type holding multiple errors.
func NewMultiError(errs ...error) MultiError {
compactErrs := make([]error, 0)
for _, e := range errs {
if e != nil {
compactErrs = append(compactErrs, e)
}
}
return MultiError{compactErrs}
}
// Error implements error. Mulitple errors are concatenated with 'and's.
func (m MultiError) Error() string {
var strs = make([]string, 0)
for _, e := range m.Errs {
if len(e.Error()) > 0 {
strs = append(strs, e.Error())
}
}
return strings.Join(strs, " and ")
}
// suint safely converts int to uint
// see https://goo.gl/wEcqof
// see https://goo.gl/pai7Dr
func suint(n int) uint {
if n < 0 {
panic(fmt.Sprintf("suint(%v) expects input >= 0", n))
}
return uint(n)
}
var errNoScheme = errors.New("no scheme")
var errEmptyURL = errors.New("URL cannot be empty")
func sourceSchemeFromUrl(url string) (string, error) {
u, err := schemeFromUrl(url)
if err != nil {
return "", fmt.Errorf("source: %v", err)
}
return u, nil
}
func databaseSchemeFromUrl(url string) (string, error) {
u, err := schemeFromUrl(url)
if err != nil {
return "", fmt.Errorf("database: %v", err)
}
return u, nil
}
// schemeFromUrl returns the scheme from a URL string
func schemeFromUrl(url string) (string, error) {
if url == "" {
return "", errEmptyURL
}
u, err := nurl.Parse(url)
if err != nil {
return "", err
}
if len(u.Scheme) == 0 {
return "", errNoScheme
}
return u.Scheme, nil
}
// FilterCustomQuery filters all query values starting with `x-`
func FilterCustomQuery(u *nurl.URL) *nurl.URL {
ux := *u
vx := make(nurl.Values)
for k, v := range ux.Query() {
if len(k) <= 1 || (len(k) > 1 && k[0:2] != "x-") {
vx[k] = v
}
}
ux.RawQuery = vx.Encode()
return &ux
}