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mirror of https://github.com/octoleo/restic.git synced 2024-11-22 21:05:10 +00:00

Merge pull request #350 from restic/allow-read-only-ops

Allow check/restore read-only, without locking
This commit is contained in:
Alexander Neumann 2015-11-13 23:48:05 +01:00
commit 6b9c8ffd14
6 changed files with 54 additions and 21 deletions

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@ -9,8 +9,8 @@ import (
)
type CmdCheck struct {
ReadData bool `long:"read-data" description:"Read data blobs" default:"false"`
CheckUnused bool `long:"check-unused" description:"Check for unused blobs" default:"false"`
ReadData bool `long:"read-data" default:"false" description:"Read data blobs"`
CheckUnused bool `long:"check-unused" default:"false" description:"Check for unused blobs"`
global *GlobalOptions
}
@ -39,11 +39,13 @@ func (cmd CmdCheck) Execute(args []string) error {
return err
}
cmd.global.Verbosef("Create exclusive lock for repository\n")
lock, err := lockRepoExclusive(repo)
defer unlockRepo(lock)
if err != nil {
return err
if !cmd.global.NoLock {
cmd.global.Verbosef("Create exclusive lock for repository\n")
lock, err := lockRepoExclusive(repo)
defer unlockRepo(lock)
if err != nil {
return err
}
}
chkr := checker.New(repo)

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@ -35,10 +35,12 @@ func (cmd CmdList) Execute(args []string) error {
return err
}
lock, err := lockRepo(repo)
defer unlockRepo(lock)
if err != nil {
return err
if !cmd.global.NoLock {
lock, err := lockRepo(repo)
defer unlockRepo(lock)
if err != nil {
return err
}
}
var t backend.Type

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@ -53,10 +53,12 @@ func (cmd CmdRestore) Execute(args []string) error {
return err
}
lock, err := lockRepo(repo)
defer unlockRepo(lock)
if err != nil {
return err
if !cmd.global.NoLock {
lock, err := lockRepo(repo)
defer unlockRepo(lock)
if err != nil {
return err
}
}
err = repo.LoadIndex()

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@ -24,6 +24,7 @@ type GlobalOptions struct {
Repo string `short:"r" long:"repo" description:"Repository directory to backup to/restore from"`
CacheDir string ` long:"cache-dir" description:"Directory to use as a local cache"`
Quiet bool `short:"q" long:"quiet" default:"false" description:"Do not output comprehensive progress report"`
NoLock bool ` long:"no-lock" default:"false" description:"Do not lock the repo, this allows some operations on read-only repos."`
password string
stdout io.Writer

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@ -62,14 +62,15 @@ func cmdBackupExcludes(t testing.TB, global GlobalOptions, target []string, pare
}
func cmdList(t testing.TB, global GlobalOptions, tpe string) backend.IDs {
var buf bytes.Buffer
global.stdout = &buf
cmd := &CmdList{global: &global}
return executeAndParseIDs(t, cmd, tpe)
}
OK(t, cmd.Execute([]string{tpe}))
IDs := parseIDsFromReader(t, &buf)
return IDs
func executeAndParseIDs(t testing.TB, cmd *CmdList, args ...string) backend.IDs {
buf := bytes.NewBuffer(nil)
cmd.global.stdout = buf
OK(t, cmd.Execute(args))
return parseIDsFromReader(t, buf)
}
func cmdRestore(t testing.TB, global GlobalOptions, dir string, snapshotID backend.ID) {
@ -788,3 +789,28 @@ func TestOptimizeRemoveUnusedBlobs(t *testing.T) {
})
}
}
func TestCheckRestoreNoLock(t *testing.T) {
withTestEnvironment(t, func(env *testEnvironment, global GlobalOptions) {
datafile := filepath.Join("testdata", "small-repo.tar.gz")
SetupTarTestFixture(t, env.base, datafile)
err := filepath.Walk(env.repo, func(p string, fi os.FileInfo, e error) error {
if e != nil {
return e
}
return os.Chmod(p, fi.Mode() & ^(os.FileMode(0222)))
})
OK(t, err)
global.NoLock = true
cmdCheck(t, global)
snapshotIDs := cmdList(t, global, "snapshots")
if len(snapshotIDs) == 0 {
t.Fatalf("found no snapshots")
}
cmdRestore(t, global, filepath.Join(env.base, "restore"), snapshotIDs[0])
})
}

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