Replace packr with go embed (#1751)

* Embed performer images
* Embed schema migrations
* Update dependencies
* Embed UI
* Remove remaining packr references

vendor/github.com/golang-migrate/migrate/v4/source/file/file.go

@@ -1,12 +1,8 @@
 package file
 
 import (
-	"fmt"
-	"io"
-	"io/ioutil"
 	nurl "net/url"
 	"os"
-	"path"
 	"path/filepath"
 
 	"github.com/golang-migrate/migrate/v4/source"
@@ -16,18 +12,11 @@ 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) {
+func parseURL(url string) (string, error) {
 	u, err := nurl.Parse(url)
 	if err != nil {
-		return nil, err
+		return "", err
 	}
-
 	// concat host and path to restore full path
 	// host might be `.`
 	p := u.Opaque
@@ -39,7 +28,7 @@ func (f *File) Open(url string) (source.Driver, error) {
 		// default to current directory if no path
 		wd, err := os.Getwd()
 		if err != nil {
-			return nil, err
+			return "", err
 		}
 		p = wd
 
@@ -47,81 +36,9 @@ func (f *File) Open(url string) (source.Driver, error) {
 		// make path absolute if relative
 		abs, err := filepath.Abs(p)
 		if err != nil {
-			return nil, err
+			return "", 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 v, nil
-	}
-	return 0, &os.PathError{Op: "first", Path: f.path, Err: os.ErrNotExist}
-}
-
-func (f *File) Prev(version uint) (prevVersion uint, err error) {
-	if v, ok := f.migrations.Prev(version); ok {
-		return v, nil
-	}
-	return 0, &os.PathError{Op: fmt.Sprintf("prev for version %v", version), Path: f.path, Err: os.ErrNotExist}
-}
-
-func (f *File) Next(version uint) (nextVersion uint, err error) {
-	if v, ok := f.migrations.Next(version); ok {
-		return v, nil
-	}
-	return 0, &os.PathError{Op: fmt.Sprintf("next for version %v", version), Path: f.path, Err: os.ErrNotExist}
-}
-
-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}
+	return p, nil
 }

vendor/github.com/golang-migrate/migrate/v4/source/file/file_go115.go

@@ -0,0 +1,32 @@
+// +build !go1.16
+
+package file
+
+import (
+	"net/http"
+
+	"github.com/golang-migrate/migrate/v4/source"
+	"github.com/golang-migrate/migrate/v4/source/httpfs"
+)
+
+type File struct {
+	httpfs.PartialDriver
+	url  string
+	path string
+}
+
+func (f *File) Open(url string) (source.Driver, error) {
+	p, err := parseURL(url)
+	if err != nil {
+		return nil, err
+	}
+
+	nf := &File{
+		url:  url,
+		path: p,
+	}
+	if err := nf.Init(http.Dir(p), ""); err != nil {
+		return nil, err
+	}
+	return nf, nil
+}

vendor/github.com/golang-migrate/migrate/v4/source/file/file_go116.go

@@ -0,0 +1,31 @@
+// +build go1.16
+
+package file
+
+import (
+	"os"
+
+	"github.com/golang-migrate/migrate/v4/source"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+type File struct {
+	iofs.PartialDriver
+	url  string
+	path string
+}
+
+func (f *File) Open(url string) (source.Driver, error) {
+	p, err := parseURL(url)
+	if err != nil {
+		return nil, err
+	}
+	nf := &File{
+		url:  url,
+		path: p,
+	}
+	if err := nf.Init(os.DirFS(p), "."); err != nil {
+		return nil, err
+	}
+	return nf, nil
+}