deduplicate the snapshot filter cli option setup

cmd/restic/cmd_copy.go

@@ -39,9 +39,7 @@ new destination repository using the "init" command.
 // CopyOptions bundles all options for the copy command.
 type CopyOptions struct {
 	secondaryRepoOptions
-	Hosts []string
-	Tags  restic.TagLists
-	Paths []string
+	snapshotFilterOptions
 }
 
 var copyOptions CopyOptions
@@ -51,9 +49,7 @@ func init() {
 
 	f := cmdCopy.Flags()
 	initSecondaryRepoOptions(f, &copyOptions.secondaryRepoOptions, "destination", "to copy snapshots from")
-	f.StringArrayVarP(&copyOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host` (can be specified multiple times)")
-	f.Var(&copyOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-	f.StringArrayVar(&copyOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(f, &copyOptions.snapshotFilterOptions, true)
 }
 
 func runCopy(opts CopyOptions, gopts GlobalOptions, args []string) error {

cmd/restic/cmd_dump.go

@@ -40,9 +40,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 
 // DumpOptions collects all options for the dump command.
 type DumpOptions struct {
-	Hosts   []string
-	Paths   []string
-	Tags    restic.TagLists
+	snapshotFilterOptions
 	Archive string
 }
 
@@ -52,9 +50,7 @@ func init() {
 	cmdRoot.AddCommand(cmdDump)
 
 	flags := cmdDump.Flags()
-	flags.StringArrayVarP(&dumpOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host`, when snapshot ID \"latest\" is given (can be specified multiple times)")
-	flags.Var(&dumpOptions.Tags, "tag", "only consider snapshots which include this `taglist`, when snapshot ID \"latest\" is given (can be specified multiple times)")
-	flags.StringArrayVar(&dumpOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when snapshot ID \"latest\" is given (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(flags, &dumpOptions.snapshotFilterOptions, true)
 	flags.StringVarP(&dumpOptions.Archive, "archive", "a", "tar", "set archive `format` as \"tar\" or \"zip\"")
 }
 

cmd/restic/cmd_find.go

@@ -51,9 +51,7 @@ type FindOptions struct {
 	PackID, ShowPackID bool
 	CaseInsensitive    bool
 	ListLong           bool
-	Hosts              []string
-	Paths              []string
-	Tags               restic.TagLists
+	snapshotFilterOptions
 }
 
 var findOptions FindOptions
@@ -72,9 +70,7 @@ func init() {
 	f.BoolVarP(&findOptions.CaseInsensitive, "ignore-case", "i", false, "ignore case for pattern")
 	f.BoolVarP(&findOptions.ListLong, "long", "l", false, "use a long listing format showing size and mode")
 
-	f.StringArrayVarP(&findOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host` (can be specified multiple times)")
-	f.Var(&findOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-	f.StringArrayVar(&findOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(f, &findOptions.snapshotFilterOptions, true)
 }
 
 type findPattern struct {

cmd/restic/cmd_forget.go

@@ -52,9 +52,7 @@ type ForgetOptions struct {
 	WithinYearly  restic.Duration
 	KeepTags      restic.TagLists
 
-	Hosts   []string
-	Tags    restic.TagLists
-	Paths   []string
+	snapshotFilterOptions
 	Compact bool
 
 	// Grouping
@@ -81,9 +79,9 @@ func init() {
 	f.VarP(&forgetOptions.WithinWeekly, "keep-within-weekly", "", "keep weekly snapshots that are newer than `duration` (eg. 1y5m7d2h) relative to the latest snapshot")
 	f.VarP(&forgetOptions.WithinMonthly, "keep-within-monthly", "", "keep monthly snapshots that are newer than `duration` (eg. 1y5m7d2h) relative to the latest snapshot")
 	f.VarP(&forgetOptions.WithinYearly, "keep-within-yearly", "", "keep yearly snapshots that are newer than `duration` (eg. 1y5m7d2h) relative to the latest snapshot")
-
 	f.Var(&forgetOptions.KeepTags, "keep-tag", "keep snapshots with this `taglist` (can be specified multiple times)")
-	f.StringArrayVar(&forgetOptions.Hosts, "host", nil, "only consider snapshots with the given `host` (can be specified multiple times)")
+
+	initMultiSnapshotFilterOptions(f, &forgetOptions.snapshotFilterOptions, false)
 	f.StringArrayVar(&forgetOptions.Hosts, "hostname", nil, "only consider snapshots with the given `hostname` (can be specified multiple times)")
 	err := f.MarkDeprecated("hostname", "use --host")
 	if err != nil {
@@ -91,9 +89,6 @@ func init() {
 		panic(err)
 	}
 
-	f.Var(&forgetOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-
-	f.StringArrayVar(&forgetOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
 	f.BoolVarP(&forgetOptions.Compact, "compact", "c", false, "use compact output format")
 
 	f.StringVarP(&forgetOptions.GroupBy, "group-by", "g", "host,paths", "`group` snapshots by host, paths and/or tags, separated by comma (disable grouping with '')")

cmd/restic/cmd_ls.go

@@ -49,9 +49,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 // LsOptions collects all options for the ls command.
 type LsOptions struct {
 	ListLong bool
-	Hosts     []string
-	Tags      restic.TagLists
-	Paths     []string
+	snapshotFilterOptions
 	Recursive bool
 }
 
@@ -61,10 +59,8 @@ func init() {
 	cmdRoot.AddCommand(cmdLs)
 
 	flags := cmdLs.Flags()
+	initSingleSnapshotFilterOptions(flags, &lsOptions.snapshotFilterOptions)
 	flags.BoolVarP(&lsOptions.ListLong, "long", "l", false, "use a long listing format showing size and mode")
-	flags.StringArrayVarP(&lsOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host`, when snapshot ID \"latest\" is given (can be specified multiple times)")
-	flags.Var(&lsOptions.Tags, "tag", "only consider snapshots which include this `taglist`, when snapshot ID \"latest\" is given (can be specified multiple times)")
-	flags.StringArrayVar(&lsOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when snapshot ID \"latest\" is given (can be specified multiple times)")
 	flags.BoolVar(&lsOptions.Recursive, "recursive", false, "include files in subfolders of the listed directories")
 }
 

cmd/restic/cmd_mount.go

@@ -12,7 +12,6 @@ import (
 
 	"github.com/restic/restic/internal/debug"
 	"github.com/restic/restic/internal/errors"
-	"github.com/restic/restic/internal/restic"
 
 	resticfs "github.com/restic/restic/internal/fs"
 	"github.com/restic/restic/internal/fuse"
@@ -76,9 +75,7 @@ type MountOptions struct {
 	OwnerRoot            bool
 	AllowOther           bool
 	NoDefaultPermissions bool
-	Hosts                []string
-	Tags                 restic.TagLists
-	Paths                []string
+	snapshotFilterOptions
 	TimeTemplate  string
 	PathTemplates []string
 }
@@ -93,9 +90,7 @@ func init() {
 	mountFlags.BoolVar(&mountOptions.AllowOther, "allow-other", false, "allow other users to access the data in the mounted directory")
 	mountFlags.BoolVar(&mountOptions.NoDefaultPermissions, "no-default-permissions", false, "for 'allow-other', ignore Unix permissions and allow users to read all snapshot files")
 
-	mountFlags.StringArrayVarP(&mountOptions.Hosts, "host", "H", nil, `only consider snapshots for this host (can be specified multiple times)`)
-	mountFlags.Var(&mountOptions.Tags, "tag", "only consider snapshots which include this `taglist` (can be specified multiple times)")
-	mountFlags.StringArrayVar(&mountOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`")
+	initMultiSnapshotFilterOptions(mountFlags, &mountOptions.snapshotFilterOptions, true)
 
 	mountFlags.StringArrayVar(&mountOptions.PathTemplates, "path-template", nil, "set `template` for path names (can be specified multiple times)")
 	mountFlags.StringVar(&mountOptions.TimeTemplate, "snapshot-template", time.RFC3339, "set `template` to use for snapshot dirs")

cmd/restic/cmd_restore.go

@@ -41,9 +41,7 @@ type RestoreOptions struct {
 	Include            []string
 	InsensitiveInclude []string
 	Target             string
-	Hosts              []string
-	Paths              []string
-	Tags               restic.TagLists
+	snapshotFilterOptions
 	Verify bool
 }
 
@@ -59,9 +57,7 @@ func init() {
 	flags.StringArrayVar(&restoreOptions.InsensitiveInclude, "iinclude", nil, "same as `--include` but ignores the casing of filenames")
 	flags.StringVarP(&restoreOptions.Target, "target", "t", "", "directory to extract data to")
 
-	flags.StringArrayVarP(&restoreOptions.Hosts, "host", "H", nil, `only consider snapshots for this host when the snapshot ID is "latest" (can be specified multiple times)`)
-	flags.Var(&restoreOptions.Tags, "tag", "only consider snapshots which include this `taglist`, when snapshot ID \"latest\" is given (can be specified multiple times)")
-	flags.StringArrayVar(&restoreOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when snapshot ID \"latest\" is given (can be specified multiple times)")
+	initSingleSnapshotFilterOptions(flags, &restoreOptions.snapshotFilterOptions)
 	flags.BoolVar(&restoreOptions.Verify, "verify", false, "verify restored files content")
 }
 

cmd/restic/cmd_snapshots.go

@@ -32,9 +32,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 
 // SnapshotOptions bundles all options for the snapshots command.
 type SnapshotOptions struct {
-	Hosts   []string
-	Tags    restic.TagLists
-	Paths   []string
+	snapshotFilterOptions
 	Compact bool
 	Last    bool // This option should be removed in favour of Latest.
 	Latest  int
@@ -47,9 +45,7 @@ func init() {
 	cmdRoot.AddCommand(cmdSnapshots)
 
 	f := cmdSnapshots.Flags()
-	f.StringArrayVarP(&snapshotOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host` (can be specified multiple times)")
-	f.Var(&snapshotOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-	f.StringArrayVar(&snapshotOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(f, &snapshotOptions.snapshotFilterOptions, true)
 	f.BoolVarP(&snapshotOptions.Compact, "compact", "c", false, "use compact output format")
 	f.BoolVar(&snapshotOptions.Last, "last", false, "only show the last snapshot for each host and path")
 	err := f.MarkDeprecated("last", "use --latest 1")

cmd/restic/cmd_stats.go

@@ -56,10 +56,7 @@ type StatsOptions struct {
 	// the mode of counting to perform (see consts for available modes)
 	countMode string
 
-	// filter snapshots by, if given by user
-	Hosts []string
-	Tags  restic.TagLists
-	Paths []string
+	snapshotFilterOptions
 }
 
 var statsOptions StatsOptions
@@ -68,9 +65,7 @@ func init() {
 	cmdRoot.AddCommand(cmdStats)
 	f := cmdStats.Flags()
 	f.StringVar(&statsOptions.countMode, "mode", countModeRestoreSize, "counting mode: restore-size (default), files-by-contents, blobs-per-file or raw-data")
-	f.StringArrayVarP(&statsOptions.Hosts, "host", "H", nil, "only consider snapshots with the given `host` (can be specified multiple times)")
-	f.Var(&statsOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-	f.StringArrayVar(&statsOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(f, &statsOptions.snapshotFilterOptions, true)
 }
 
 func runStats(gopts GlobalOptions, args []string) error {

cmd/restic/cmd_tag.go

@@ -35,9 +35,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
 
 // TagOptions bundles all options for the 'tag' command.
 type TagOptions struct {
-	Hosts      []string
-	Paths      []string
-	Tags       restic.TagLists
+	snapshotFilterOptions
 	SetTags    restic.TagLists
 	AddTags    restic.TagLists
 	RemoveTags restic.TagLists
@@ -52,10 +50,7 @@ func init() {
 	tagFlags.Var(&tagOptions.SetTags, "set", "`tags` which will replace the existing tags in the format `tag[,tag,...]` (can be given multiple times)")
 	tagFlags.Var(&tagOptions.AddTags, "add", "`tags` which will be added to the existing tags in the format `tag[,tag,...]` (can be given multiple times)")
 	tagFlags.Var(&tagOptions.RemoveTags, "remove", "`tags` which will be removed from the existing tags in the format `tag[,tag,...]` (can be given multiple times)")
-
-	tagFlags.StringArrayVarP(&tagOptions.Hosts, "host", "H", nil, "only consider snapshots for this `host` (can be specified multiple times)")
-	tagFlags.Var(&tagOptions.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
-	tagFlags.StringArrayVar(&tagOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+	initMultiSnapshotFilterOptions(tagFlags, &tagOptions.snapshotFilterOptions, true)
 }
 
 func changeTags(ctx context.Context, repo *repository.Repository, sn *restic.Snapshot, setTags, addTags, removeTags []string) (bool, error) {

cmd/restic/find.go

@@ -5,8 +5,33 @@ import (
 
 	"github.com/restic/restic/internal/backend"
 	"github.com/restic/restic/internal/restic"
+	"github.com/spf13/pflag"
 )
 
+type snapshotFilterOptions struct {
+	Hosts []string
+	Tags  restic.TagLists
+	Paths []string
+}
+
+// initMultiSnapshotFilterOptions is used for commands that work on multiple snapshots
+func initMultiSnapshotFilterOptions(flags *pflag.FlagSet, options *snapshotFilterOptions, addHostShorthand bool) {
+	hostShorthand := "H"
+	if !addHostShorthand {
+		hostShorthand = ""
+	}
+	flags.StringArrayVarP(&options.Hosts, "host", hostShorthand, nil, "only consider snapshots for this `host` (can be specified multiple times)")
+	flags.Var(&options.Tags, "tag", "only consider snapshots which include this `taglist` in the format `tag[,tag,...]` (can be specified multiple times)")
+	flags.StringArrayVar(&options.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
+}
+
+// initSingleSnapshotFilterOptions is used for commands that work on a single snapshot
+func initSingleSnapshotFilterOptions(flags *pflag.FlagSet, options *snapshotFilterOptions) {
+	flags.StringArrayVarP(&options.Hosts, "host", "H", nil, "only consider snapshots for this `host`, when snapshot ID \"latest\" is given (can be specified multiple times)")
+	flags.Var(&options.Tags, "tag", "only consider snapshots which include this `taglist`, when snapshot ID \"latest\" is given (can be specified multiple times)")
+	flags.StringArrayVar(&options.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when snapshot ID \"latest\" is given (can be specified multiple times)")
+}
+
 // FindFilteredSnapshots yields Snapshots, either given explicitly by `snapshotIDs` or filtered from the list of all snapshots.
 func FindFilteredSnapshots(ctx context.Context, be restic.Lister, loader restic.LoaderUnpacked, hosts []string, tags []restic.TagList, paths []string, snapshotIDs []string) <-chan *restic.Snapshot {
 	out := make(chan *restic.Snapshot)

cmd/restic/integration_test.go

@@ -106,8 +106,10 @@ func testRunRestore(t testing.TB, opts GlobalOptions, dir string, snapshotID res
 func testRunRestoreLatest(t testing.TB, gopts GlobalOptions, dir string, paths []string, hosts []string) {
 	opts := RestoreOptions{
 		Target: dir,
+		snapshotFilterOptions: snapshotFilterOptions{
 			Hosts: hosts,
 			Paths: paths,
+		},
 	}
 
 	rtest.OK(t, runRestore(opts, gopts, []string{"latest"}))