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Add Google Cloud Storage as backend

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Environment variables:
GOOGLE_PROJECT_ID=gcp-project-id
GOOGLE_APPLICATION_CREDENTIALS=path-to-json-file

Environment variables for test:
RESTIC_TEST_GS_PROJECT_ID=gcp-project-id
RESTIC_TEST_GS_APPLICATION_CREDENTIALS=path-to-json-file
RESTIC_TEST_GS_REPOSITORY=gs:us-central1/test-bucket

Init repository:
$ restic -r gs🪣/[prefix] init
This commit is contained in:
Dipta Das
2017-07-08 06:34:23 -07:00
committed by Alexander Neumann
parent 2c22ff175c
commit ba75a3884c
6 changed files with 654 additions and 0 deletions
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30
cmd/restic/global.go
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@@ -11,6 +11,7 @@ import (
"syscall"
"github.com/restic/restic/internal/backend/b2"
"github.com/restic/restic/internal/backend/gs"
"github.com/restic/restic/internal/backend/local"
"github.com/restic/restic/internal/backend/location"
"github.com/restic/restic/internal/backend/rest"
@@ -363,6 +364,31 @@ func parseConfig(loc location.Location, opts options.Options) (interface{}, erro
debug.Log("opening s3 repository at %#v", cfg)
return cfg, nil
case "gs":
cfg := loc.Config.(gs.Config)
if cfg.ProjectID == "" {
cfg.ProjectID = os.Getenv("GOOGLE_PROJECT_ID")
}
if cfg.JSONKeyPath == "" {
if path := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS"); path != "" {
// Check read access
if _, err := ioutil.ReadFile(path); err != nil {
return nil, errors.Fatalf("Failed to read google credential from file %v: %v", path, err)
}
cfg.JSONKeyPath = path
} else {
return nil, errors.Fatal("No credential file path is set")
}
}
if err := opts.Apply(loc.Scheme, &cfg); err != nil {
return nil, err
}
debug.Log("opening gs repository at %#v", cfg)
return cfg, nil
case "swift":
cfg := loc.Config.(swift.Config)
@@ -429,6 +455,8 @@ func open(s string, opts options.Options) (restic.Backend, error) {
be, err = sftp.Open(cfg.(sftp.Config))
case "s3":
be, err = s3.Open(cfg.(s3.Config))
case "gs":
be, err = gs.Open(cfg.(gs.Config))
case "swift":
be, err = swift.Open(cfg.(swift.Config))
case "b2":
@@ -477,6 +505,8 @@ func create(s string, opts options.Options) (restic.Backend, error) {
return sftp.Create(cfg.(sftp.Config))
case "s3":
return s3.Create(cfg.(s3.Config))
case "gs":
return gs.Create(cfg.(gs.Config))
case "swift":
return swift.Open(cfg.(swift.Config))
case "b2":