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Introduce Helmfile's own filesystem abstraction to correctly unit test some components (#307)

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Use abstracted FS

Signed-off-by: Arkaitz Jimenez <arkaitzj@gmail.com>

Signed-off-by: Arkaitz Jimenez <arkaitzj@gmail.com>
This commit is contained in:
Arkaitz Jimenez
2022-08-24 12:58:43 +09:00
committed by GitHub
parent a626664f46
commit cc33e7b7d8
44 changed files with 513 additions and 425 deletions
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pkg/remote/remote.go
+12 -15
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@@ -17,6 +17,7 @@ import (
"gopkg.in/yaml.v2"
"github.com/helmfile/helmfile/pkg/envvar"
"github.com/helmfile/helmfile/pkg/filesystem"
)
var disableInsecureFeatures bool
@@ -43,11 +44,9 @@ type Remote struct {
// Getter is the underlying implementation of getter used for fetching remote files
Getter Getter
// ReadFile is the implementation of the file reader that reads a local file from the specified path.
// Filesystem abstraction
// Inject any implementation of your choice, like an im-memory impl for testing, os.ReadFile for the real-world use.
ReadFile func(string) ([]byte, error)
DirExists func(string) bool
FileExists func(string) bool
fs *filesystem.FileSystem
}
func (r *Remote) Unmarshal(src string, dst interface{}) error {
@@ -87,7 +86,7 @@ func (r *Remote) GetBytes(goGetterSrc string) ([]byte, error) {
return nil, err
}
bytes, err := r.ReadFile(f)
bytes, err := r.fs.ReadFile(f)
if err != nil {
return nil, fmt.Errorf("read file: %v", err)
}
@@ -99,7 +98,7 @@ func (r *Remote) GetBytes(goGetterSrc string) ([]byte, error) {
// If the argument was an URL, it fetches the remote directory contained within the URL,
// and returns the path to the file in the fetched directory
func (r *Remote) Locate(urlOrPath string) (string, error) {
if r.FileExists(urlOrPath) || r.DirExists(urlOrPath) {
if r.fs.FileExistsAt(urlOrPath) || r.fs.DirectoryExistsAt(urlOrPath) {
return urlOrPath, nil
}
fetched, err := r.Fetch(urlOrPath)
@@ -217,11 +216,11 @@ func (r *Remote) Fetch(goGetterSrc string, cacheDirOpt ...string) (string, error
r.Logger.Debugf("cached dir: %s", cacheDirPath)
{
if r.FileExists(cacheDirPath) {
if r.fs.FileExistsAt(cacheDirPath) {
return "", fmt.Errorf("%s is not directory. please remove it so that variant could use it for dependency caching", getterDst)
}
if r.DirExists(cacheDirPath) {
if r.fs.DirectoryExistsAt(cacheDirPath) {
cached = true
}
}
@@ -285,17 +284,15 @@ func (g *GoGetter) Get(wd, src, dst string) error {
return nil
}
func NewRemote(logger *zap.SugaredLogger, homeDir string, readFile func(string) ([]byte, error), dirExists func(string) bool, fileExists func(string) bool) *Remote {
func NewRemote(logger *zap.SugaredLogger, homeDir string, fs *filesystem.FileSystem) *Remote {
if disableInsecureFeatures {
panic("Remote sources are disabled due to 'DISABLE_INSECURE_FEATURES'")
}
remote := &Remote{
Logger: logger,
Home: homeDir,
Getter: &GoGetter{Logger: logger},
ReadFile: readFile,
DirExists: dirExists,
FileExists: fileExists,
Logger: logger,
Home: homeDir,
Getter: &GoGetter{Logger: logger},
fs: fs,
}
if remote.Home == "" {