mirror of
https://github.com/restic/restic.git
synced 2026-10-03 17:30:32 +00:00
Winfried PlappertandMichael Eischer
62991338ea
Co-authored-by: Michael Eischer <michael.eischer@fau.de>
47 lines
2.5 KiB
Go
47 lines
2.5 KiB
Go
package main
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import (
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"os"
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"github.com/restic/restic/internal/data"
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"github.com/spf13/pflag"
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)
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// initMultiSnapshotFilter is used for commands that work on multiple snapshots
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// MUST be combined with (*data,SnapshotFilter).FindAll
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// MUST be followed by finalizeSnapshotFilter after flag parsing
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func initMultiSnapshotFilter(flags *pflag.FlagSet, filt *data.SnapshotFilter, addHostShorthand bool) {
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hostShorthand := "H"
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if !addHostShorthand {
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hostShorthand = ""
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}
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flags.StringArrayVarP(&filt.Hosts, "host", hostShorthand, nil, "only consider snapshots for this `host` (can be specified multiple times, use empty string to unset default value) (default: $RESTIC_HOST)")
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flags.Var(&filt.Tags, "tag", "only consider snapshots including `tag[,tag,...]` (can be specified multiple times)")
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flags.StringArrayVar(&filt.Paths, "path", nil, "only consider snapshots including this (absolute) `path` (can be specified multiple times, snapshots must include all specified paths)")
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}
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// initSingleSnapshotFilter is used for commands that work on a single snapshot
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// MUST be combined with (*data.SnapshotFilter).FindLatest
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// MUST be followed by finalizeSnapshotFilter after flag parsing
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func initSingleSnapshotFilter(flags *pflag.FlagSet, filt *data.SnapshotFilter) {
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flags.StringArrayVarP(&filt.Hosts, "host", "H", nil, "only consider snapshots for this `host`, when snapshot ID \"latest\" is given (can be specified multiple times, use empty string to unset default value) (default: $RESTIC_HOST)")
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flags.Var(&filt.Tags, "tag", "only consider snapshots including `tag[,tag,...]`, when snapshot ID \"latest\" is given (can be specified multiple times)")
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flags.StringArrayVar(&filt.Paths, "path", nil, "only consider snapshots including this (absolute) `path`, when snapshot ID \"latest\" is given (can be specified multiple times, snapshots must include all specified paths)")
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}
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// finalizeSnapshotFilter applies RESTIC_HOST default only if --host flag wasn't explicitly set.
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// This allows users to override RESTIC_HOST by providing --host="" or --host with explicit values.
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func finalizeSnapshotFilter(filt *data.SnapshotFilter) {
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// Only apply RESTIC_HOST default if the --host flag wasn't changed by the user
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if filt.Hosts == nil {
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if host := os.Getenv("RESTIC_HOST"); host != "" {
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filt.Hosts = []string{host}
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}
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}
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// If flag was set to empty string explicitly (e.g., --host=""),
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// filt.Hosts will be []string{""} which should be cleaned up to allow all hosts
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if len(filt.Hosts) == 1 && filt.Hosts[0] == "" {
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filt.Hosts = nil
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}
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}
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