mirror of
https://github.com/restic/restic.git
synced 2024-08-26 06:07:23 +02:00
222 lines
7.2 KiB
Go
222 lines
7.2 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"path/filepath"
|
|
"testing"
|
|
|
|
"github.com/restic/restic/internal/backend"
|
|
rtest "github.com/restic/restic/internal/test"
|
|
)
|
|
|
|
func testRunPrune(t testing.TB, gopts GlobalOptions, opts PruneOptions) {
|
|
oldHook := gopts.backendTestHook
|
|
gopts.backendTestHook = func(r backend.Backend) (backend.Backend, error) { return newListOnceBackend(r), nil }
|
|
defer func() {
|
|
gopts.backendTestHook = oldHook
|
|
}()
|
|
rtest.OK(t, runPrune(context.TODO(), opts, gopts))
|
|
}
|
|
|
|
func TestPrune(t *testing.T) {
|
|
testPruneVariants(t, false)
|
|
testPruneVariants(t, true)
|
|
}
|
|
|
|
func testPruneVariants(t *testing.T, unsafeNoSpaceRecovery bool) {
|
|
suffix := ""
|
|
if unsafeNoSpaceRecovery {
|
|
suffix = "-recovery"
|
|
}
|
|
t.Run("0"+suffix, func(t *testing.T) {
|
|
opts := PruneOptions{MaxUnused: "0%", unsafeRecovery: unsafeNoSpaceRecovery}
|
|
checkOpts := CheckOptions{ReadData: true, CheckUnused: true}
|
|
testPrune(t, opts, checkOpts)
|
|
})
|
|
|
|
t.Run("50"+suffix, func(t *testing.T) {
|
|
opts := PruneOptions{MaxUnused: "50%", unsafeRecovery: unsafeNoSpaceRecovery}
|
|
checkOpts := CheckOptions{ReadData: true}
|
|
testPrune(t, opts, checkOpts)
|
|
})
|
|
|
|
t.Run("unlimited"+suffix, func(t *testing.T) {
|
|
opts := PruneOptions{MaxUnused: "unlimited", unsafeRecovery: unsafeNoSpaceRecovery}
|
|
checkOpts := CheckOptions{ReadData: true}
|
|
testPrune(t, opts, checkOpts)
|
|
})
|
|
|
|
t.Run("CachableOnly"+suffix, func(t *testing.T) {
|
|
opts := PruneOptions{MaxUnused: "5%", RepackCachableOnly: true, unsafeRecovery: unsafeNoSpaceRecovery}
|
|
checkOpts := CheckOptions{ReadData: true}
|
|
testPrune(t, opts, checkOpts)
|
|
})
|
|
t.Run("Small", func(t *testing.T) {
|
|
opts := PruneOptions{MaxUnused: "unlimited", RepackSmall: true}
|
|
checkOpts := CheckOptions{ReadData: true, CheckUnused: true}
|
|
testPrune(t, opts, checkOpts)
|
|
})
|
|
}
|
|
|
|
func createPrunableRepo(t *testing.T, env *testEnvironment) {
|
|
testSetupBackupData(t, env)
|
|
opts := BackupOptions{}
|
|
|
|
testRunBackup(t, "", []string{filepath.Join(env.testdata, "0", "0", "9")}, opts, env.gopts)
|
|
firstSnapshot := testListSnapshots(t, env.gopts, 1)[0]
|
|
|
|
testRunBackup(t, "", []string{filepath.Join(env.testdata, "0", "0", "9", "2")}, opts, env.gopts)
|
|
testRunBackup(t, "", []string{filepath.Join(env.testdata, "0", "0", "9", "3")}, opts, env.gopts)
|
|
testListSnapshots(t, env.gopts, 3)
|
|
|
|
testRunForgetJSON(t, env.gopts)
|
|
testRunForget(t, env.gopts, firstSnapshot.String())
|
|
}
|
|
|
|
func testRunForgetJSON(t testing.TB, gopts GlobalOptions, args ...string) {
|
|
buf, err := withCaptureStdout(func() error {
|
|
gopts.JSON = true
|
|
opts := ForgetOptions{
|
|
DryRun: true,
|
|
Last: 1,
|
|
}
|
|
return runForget(context.TODO(), opts, gopts, args)
|
|
})
|
|
rtest.OK(t, err)
|
|
|
|
var forgets []*ForgetGroup
|
|
rtest.OK(t, json.Unmarshal(buf.Bytes(), &forgets))
|
|
|
|
rtest.Assert(t, len(forgets) == 1,
|
|
"Expected 1 snapshot group, got %v", len(forgets))
|
|
rtest.Assert(t, len(forgets[0].Keep) == 1,
|
|
"Expected 1 snapshot to be kept, got %v", len(forgets[0].Keep))
|
|
rtest.Assert(t, len(forgets[0].Remove) == 2,
|
|
"Expected 2 snapshots to be removed, got %v", len(forgets[0].Remove))
|
|
}
|
|
|
|
func testPrune(t *testing.T, pruneOpts PruneOptions, checkOpts CheckOptions) {
|
|
env, cleanup := withTestEnvironment(t)
|
|
defer cleanup()
|
|
|
|
createPrunableRepo(t, env)
|
|
testRunPrune(t, env.gopts, pruneOpts)
|
|
rtest.OK(t, runCheck(context.TODO(), checkOpts, env.gopts, nil))
|
|
}
|
|
|
|
var pruneDefaultOptions = PruneOptions{MaxUnused: "5%"}
|
|
|
|
func TestPruneWithDamagedRepository(t *testing.T) {
|
|
env, cleanup := withTestEnvironment(t)
|
|
defer cleanup()
|
|
|
|
datafile := filepath.Join("testdata", "backup-data.tar.gz")
|
|
testRunInit(t, env.gopts)
|
|
|
|
rtest.SetupTarTestFixture(t, env.testdata, datafile)
|
|
opts := BackupOptions{}
|
|
|
|
// create and delete snapshot to create unused blobs
|
|
testRunBackup(t, "", []string{filepath.Join(env.testdata, "0", "0", "9", "2")}, opts, env.gopts)
|
|
firstSnapshot := testListSnapshots(t, env.gopts, 1)[0]
|
|
testRunForget(t, env.gopts, firstSnapshot.String())
|
|
|
|
oldPacks := listPacks(env.gopts, t)
|
|
|
|
// create new snapshot, but lose all data
|
|
testRunBackup(t, "", []string{filepath.Join(env.testdata, "0", "0", "9", "3")}, opts, env.gopts)
|
|
testListSnapshots(t, env.gopts, 1)
|
|
removePacksExcept(env.gopts, t, oldPacks, false)
|
|
|
|
oldHook := env.gopts.backendTestHook
|
|
env.gopts.backendTestHook = func(r backend.Backend) (backend.Backend, error) { return newListOnceBackend(r), nil }
|
|
defer func() {
|
|
env.gopts.backendTestHook = oldHook
|
|
}()
|
|
// prune should fail
|
|
rtest.Assert(t, runPrune(context.TODO(), pruneDefaultOptions, env.gopts) == errorPacksMissing,
|
|
"prune should have reported index not complete error")
|
|
}
|
|
|
|
// Test repos for edge cases
|
|
func TestEdgeCaseRepos(t *testing.T) {
|
|
opts := CheckOptions{}
|
|
|
|
// repo where index is completely missing
|
|
// => check and prune should fail
|
|
t.Run("no-index", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-index-missing.tar.gz", opts, pruneDefaultOptions, false, false)
|
|
})
|
|
|
|
// repo where an existing and used blob is missing from the index
|
|
// => check and prune should fail
|
|
t.Run("index-missing-blob", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-index-missing-blob.tar.gz", opts, pruneDefaultOptions, false, false)
|
|
})
|
|
|
|
// repo where a blob is missing
|
|
// => check and prune should fail
|
|
t.Run("missing-data", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-data-missing.tar.gz", opts, pruneDefaultOptions, false, false)
|
|
})
|
|
|
|
// repo where blobs which are not needed are missing or in invalid pack files
|
|
// => check should fail and prune should repair this
|
|
t.Run("missing-unused-data", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-unused-data-missing.tar.gz", opts, pruneDefaultOptions, false, true)
|
|
})
|
|
|
|
// repo where data exists that is not referenced
|
|
// => check and prune should fully work
|
|
t.Run("unreferenced-data", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-unreferenced-data.tar.gz", opts, pruneDefaultOptions, true, true)
|
|
})
|
|
|
|
// repo where an obsolete index still exists
|
|
// => check and prune should fully work
|
|
t.Run("obsolete-index", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-obsolete-index.tar.gz", opts, pruneDefaultOptions, true, true)
|
|
})
|
|
|
|
// repo which contains mixed (data/tree) packs
|
|
// => check and prune should fully work
|
|
t.Run("mixed-packs", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-mixed.tar.gz", opts, pruneDefaultOptions, true, true)
|
|
})
|
|
|
|
// repo which contains duplicate blobs
|
|
// => checking for unused data should report an error and prune resolves the
|
|
// situation
|
|
opts = CheckOptions{
|
|
ReadData: true,
|
|
CheckUnused: true,
|
|
}
|
|
t.Run("duplicates", func(t *testing.T) {
|
|
testEdgeCaseRepo(t, "repo-duplicates.tar.gz", opts, pruneDefaultOptions, false, true)
|
|
})
|
|
}
|
|
|
|
func testEdgeCaseRepo(t *testing.T, tarfile string, optionsCheck CheckOptions, optionsPrune PruneOptions, checkOK, pruneOK bool) {
|
|
env, cleanup := withTestEnvironment(t)
|
|
defer cleanup()
|
|
|
|
datafile := filepath.Join("testdata", tarfile)
|
|
rtest.SetupTarTestFixture(t, env.base, datafile)
|
|
|
|
if checkOK {
|
|
testRunCheck(t, env.gopts)
|
|
} else {
|
|
rtest.Assert(t, runCheck(context.TODO(), optionsCheck, env.gopts, nil) != nil,
|
|
"check should have reported an error")
|
|
}
|
|
|
|
if pruneOK {
|
|
testRunPrune(t, env.gopts, optionsPrune)
|
|
testRunCheck(t, env.gopts)
|
|
} else {
|
|
rtest.Assert(t, runPrune(context.TODO(), optionsPrune, env.gopts) != nil,
|
|
"prune should have reported an error")
|
|
}
|
|
}
|