332 lines
13 KiB
Go
332 lines
13 KiB
Go
package restic
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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"git.casaderoll.de/michael/urbm/internal/model"
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)
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type fakeSecrets map[string]string
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func (s fakeSecrets) Get(id string) (string, error) { return s[id], nil }
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func TestBackupUsesPasswordFileAndStructuredArguments(t *testing.T) {
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dir := t.TempDir()
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argsPath := filepath.Join(dir, "args")
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passwordPath := filepath.Join(dir, "password")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\ncat \"$RESTIC_PASSWORD_FILE\" > '%s'\nprintf '%%s\\n' '{\"message_type\":\"status\",\"percent_done\":0.5,\"total_files\":12,\"files_done\":6,\"total_bytes\":1024,\"bytes_done\":512,\"seconds_remaining\":4,\"current_files\":[\"/source path/file.txt\"]}'\nprintf '%%s\\n' '{\"message_type\":\"summary\",\"snapshot_id\":\"abc123\",\"data_added\":42,\"files_new\":3,\"files_changed\":2,\"total_bytes_processed\":1024,\"total_files_processed\":12}'\n", argsPath, passwordPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "top-secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo path", PasswordRef: "password"}
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job := model.Job{ID: "job", Compression: "auto", Tags: []string{"daily"}, Excludes: []string{"*.tmp"}}
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var progress Progress
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summary, err := runner.Backup(context.Background(), repo, job, []string{"/source path"}, func(value Progress) { progress = value })
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if err != nil {
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t.Fatal(err)
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}
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if summary.SnapshotID != "abc123" || summary.DataAdded != 42 || summary.FilesChanged != 2 || summary.TotalBytesProcessed != 1024 || summary.TotalFilesProcessed != 12 {
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t.Fatalf("unexpected summary: %+v", summary)
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}
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if progress.PercentDone != 0.5 || progress.FilesDone != 6 || progress.BytesDone != 512 || len(progress.CurrentFiles) != 1 {
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t.Fatalf("unexpected progress: %+v", progress)
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}
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args, _ := os.ReadFile(argsPath)
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for _, expected := range []string{"/repo path", "backup", "--json", "/source path"} {
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if !strings.Contains(string(args), expected) {
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t.Fatalf("arguments missing %q: %s", expected, args)
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}
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}
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password, _ := os.ReadFile(passwordPath)
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if string(password) != "top-secret" {
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t.Fatal("password file was not provided")
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}
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}
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func TestBackupLimitsCPUForThisJob(t *testing.T) {
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dir := t.TempDir()
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envPath := filepath.Join(dir, "gomaxprocs")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s' \"$GOMAXPROCS\" > '%s'\nprintf '%%s\\n' '{\"message_type\":\"summary\",\"snapshot_id\":\"cpu123\"}'\n", envPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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job := model.Job{ID: "job", Compression: "auto", CPUCores: 2}
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if _, err := runner.Backup(context.Background(), repo, job, []string{"/source"}, nil); err != nil {
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t.Fatal(err)
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}
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value, err := os.ReadFile(envPath)
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if err != nil {
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t.Fatal(err)
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}
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if string(value) != "2" {
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t.Fatalf("GOMAXPROCS = %q", value)
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}
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}
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func TestBackupImageStreamsRawDeviceWithStableFilename(t *testing.T) {
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dir := t.TempDir()
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argsPath := filepath.Join(dir, "args")
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imagePath := filepath.Join(dir, "image")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\ncat > '%s'\nprintf '%%s\\n' '{\"message_type\":\"summary\",\"snapshot_id\":\"image123\",\"data_added\":4,\"total_bytes_processed\":4,\"total_files_processed\":1}'\n", argsPath, imagePath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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job := model.Job{ID: "flash", Compression: "auto"}
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summary, err := runner.BackupImage(context.Background(), repo, job, strings.NewReader("disk"), nil)
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if err != nil {
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t.Fatal(err)
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}
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if summary.SnapshotID != "image123" || summary.TotalBytesProcessed != 4 {
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t.Fatalf("unexpected summary: %+v", summary)
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}
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args, _ := os.ReadFile(argsPath)
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for _, expected := range []string{"--stdin", "--stdin-filename", "urbm-usb-flash.img", "usb-image"} {
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if !strings.Contains(string(args), expected) {
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t.Fatalf("arguments missing %q: %s", expected, args)
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}
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}
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image, _ := os.ReadFile(imagePath)
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if string(image) != "disk" {
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t.Fatalf("streamed image = %q", image)
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}
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}
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func TestStatsUsesRequestedRepositoryCountingMode(t *testing.T) {
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dir := t.TempDir()
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argsPath := filepath.Join(dir, "args")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\nprintf '%%s\\n' '{\"total_size\":4096,\"total_file_count\":12,\"total_blob_count\":8}'\n", argsPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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stats, err := runner.Stats(context.Background(), repo, "raw-data")
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if err != nil {
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t.Fatal(err)
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}
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if stats.TotalSize != 4096 || stats.TotalFileCount != 12 || stats.TotalBlobCount != 8 {
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t.Fatalf("unexpected stats: %+v", stats)
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}
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args, _ := os.ReadFile(argsPath)
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for _, expected := range []string{"stats", "--json", "--mode", "raw-data"} {
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if !strings.Contains(string(args), expected) {
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t.Fatalf("arguments missing %q: %s", expected, args)
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}
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}
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}
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func TestStatsUnlocksStaleRepositoryLockAndRetries(t *testing.T) {
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dir := t.TempDir()
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logPath := filepath.Join(dir, "commands")
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countPath := filepath.Join(dir, "stats-count")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf(`#!/bin/sh
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printf '%%s\n' "$*" >> '%s'
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case " $* " in
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*" stats "*)
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count=0
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[ -f '%s' ] && count=$(cat '%s')
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count=$((count + 1))
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printf '%%s' "$count" > '%s'
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if [ "$count" -eq 1 ]; then
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printf 'Fatal: unable to create lock in backend: repository is already locked\n' >&2
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exit 11
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fi
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printf '%%s\n' '{"total_size":4096,"total_file_count":12}'
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;;
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esac
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`, logPath, countPath, countPath, countPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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stats, err := runner.Stats(context.Background(), repo, "raw-data")
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if err != nil {
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t.Fatal(err)
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}
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if stats.TotalSize != 4096 {
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t.Fatalf("unexpected stats: %+v", stats)
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}
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commands, err := os.ReadFile(logPath)
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if err != nil {
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t.Fatal(err)
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}
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lines := strings.Split(strings.TrimSpace(string(commands)), "\n")
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if len(lines) != 3 || !strings.Contains(lines[0], "stats") || !strings.Contains(lines[1], "unlock") || !strings.Contains(lines[2], "stats") {
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t.Fatalf("expected stats, unlock, stats; got %q", lines)
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}
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}
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func TestForgetUsesAgeAndCalendarRetention(t *testing.T) {
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dir := t.TempDir()
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argsPath := filepath.Join(dir, "args")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\n", argsPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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job := model.Job{ID: "job", Retention: model.Retention{KeepWithinDays: 30, Weekly: 4, Monthly: 12}}
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if err := runner.Forget(context.Background(), repo, job); err != nil {
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t.Fatal(err)
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}
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args, _ := os.ReadFile(argsPath)
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for _, expected := range []string{"--keep-within", "30d", "--keep-weekly", "4", "--keep-monthly", "12"} {
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if !strings.Contains(string(args), expected) {
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t.Fatalf("retention arguments missing %q: %s", expected, args)
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}
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}
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if strings.Contains(string(args), "--keep-daily") {
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t.Fatalf("disabled daily retention was included: %s", args)
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}
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}
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func TestForgetUnlocksStaleRepositoryLockAndRetries(t *testing.T) {
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dir := t.TempDir()
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logPath := filepath.Join(dir, "commands")
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countPath := filepath.Join(dir, "forget-count")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf(`#!/bin/sh
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printf '%%s\n' "$*" >> '%s'
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case " $* " in
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*" forget "*)
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count=0
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[ -f '%s' ] && count=$(cat '%s')
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count=$((count + 1))
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printf '%%s' "$count" > '%s'
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if [ "$count" -eq 1 ]; then
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printf 'Fatal: unable to create lock in backend: repository is already locked\n' >&2
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exit 11
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fi
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;;
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esac
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`, logPath, countPath, countPath, countPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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job := model.Job{ID: "job", Retention: model.Retention{KeepWithinDays: 30}}
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if err := runner.Forget(context.Background(), repo, job); err != nil {
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t.Fatal(err)
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}
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commands, err := os.ReadFile(logPath)
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if err != nil {
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t.Fatal(err)
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}
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lines := strings.Split(strings.TrimSpace(string(commands)), "\n")
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if len(lines) != 3 || !strings.Contains(lines[0], "forget") || !strings.Contains(lines[1], "unlock") || !strings.Contains(lines[2], "forget") {
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t.Fatalf("expected forget, unlock, forget; got %q", lines)
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}
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}
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func TestUnlockUsesSafeResticCommand(t *testing.T) {
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dir := t.TempDir()
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argsPath := filepath.Join(dir, "args")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\n", argsPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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if err := runner.Unlock(context.Background(), repo); err != nil {
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t.Fatal(err)
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}
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args, _ := os.ReadFile(argsPath)
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if !strings.Contains(string(args), "unlock") {
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t.Fatalf("unlock command missing: %s", args)
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}
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if strings.Contains(string(args), "--remove-all") {
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t.Fatalf("unsafe remove-all option used: %s", args)
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}
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}
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func TestResticErrorExplainsExistingRepository(t *testing.T) {
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err := resticError("Fatal: create repository failed: config file already exists", fmt.Errorf("exit status 1"))
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if !strings.Contains(err.Error(), "already initialized") || !strings.Contains(err.Error(), "select Test") {
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t.Fatalf("unexpected error: %v", err)
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}
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}
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func TestResticErrorExplainsCiphertextVerification(t *testing.T) {
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err := resticError(`{"message_type":"exit_error","message":"Fatal: config or key abc is damaged: ciphertext verification failed"}`, fmt.Errorf("exit status 1"))
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if !strings.Contains(err.Error(), "password does not match") || strings.Contains(err.Error(), "abc") {
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t.Fatalf("unexpected error: %v", err)
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}
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}
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func TestRunnerPausesResumesAndCancelsProcessGroup(t *testing.T) {
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dir := t.TempDir()
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ticksPath := filepath.Join(dir, "ticks")
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script := filepath.Join(dir, "restic")
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body := fmt.Sprintf("#!/bin/sh\nwhile :; do printf x >> '%s'; sleep 0.05; done\n", ticksPath)
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if err := os.WriteFile(script, []byte(body), 0700); err != nil {
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t.Fatal(err)
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}
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runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
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repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
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ctx, cancel := context.WithCancel(WithRunID(context.Background(), "run"))
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done := make(chan error, 1)
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go func() { done <- runner.run(ctx, repo, []string{"backup"}, nil, nil) }()
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waitForSize := func(minimum int64) int64 {
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deadline := time.Now().Add(2 * time.Second)
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for time.Now().Before(deadline) {
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if info, err := os.Stat(ticksPath); err == nil && info.Size() >= minimum {
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return info.Size()
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}
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time.Sleep(10 * time.Millisecond)
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}
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t.Fatalf("tick file did not reach %d bytes", minimum)
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return 0
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}
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waitForSize(2)
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if err := runner.Pause("run"); err != nil {
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t.Fatal(err)
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}
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time.Sleep(100 * time.Millisecond)
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pausedSize := waitForSize(1)
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time.Sleep(150 * time.Millisecond)
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info, err := os.Stat(ticksPath)
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if err != nil {
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t.Fatal(err)
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}
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if info.Size() != pausedSize {
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t.Fatalf("process continued while paused: size=%d, expected=%d", info.Size(), pausedSize)
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}
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if err := runner.Resume("run"); err != nil {
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t.Fatal(err)
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}
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waitForSize(pausedSize + 2)
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if err := runner.Pause("run"); err != nil {
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t.Fatal(err)
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}
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cancel()
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select {
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case err := <-done:
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if err == nil || !strings.Contains(err.Error(), "cancelled") {
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t.Fatalf("cancel result = %v", err)
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}
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case <-time.After(2 * time.Second):
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t.Fatal("paused process group was not cancelled")
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}
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}
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