mirror of
https://github.com/kopia/kopia.git
synced 2026-01-08 06:27:54 -05:00
5e8e175cfa
Reader methods go to repo.Reader and write methods go to repo.Writer Switched usage to new interfaces based on linter errors.
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
package cli
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import (
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"context"
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"os"
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"strings"
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"github.com/pkg/errors"
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"github.com/kopia/kopia/fs"
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"github.com/kopia/kopia/internal/diff"
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"github.com/kopia/kopia/repo"
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"github.com/kopia/kopia/snapshot/snapshotfs"
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)
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var (
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diffCommand = app.Command("diff", "Displays differences between two repository objects (files or directories)").Alias("compare")
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diffFirstObjectPath = diffCommand.Arg("object-path1", "First object/path").Required().String()
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diffSecondObjectPath = diffCommand.Arg("object-path2", "Second object/path").Required().String()
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diffCompareFiles = diffCommand.Flag("files", "Compare files by launching diff command for all pairs of (old,new)").Short('f').Bool()
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diffCommandCommand = diffCommand.Flag("diff-command", "Displays differences between two repository objects (files or directories)").Default(defaultDiffCommand()).Envar("KOPIA_DIFF").String()
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)
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func runDiffCommand(ctx context.Context, rep repo.Reader) error {
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ent1, err := snapshotfs.FilesystemEntryFromIDWithPath(ctx, rep, *diffFirstObjectPath, false)
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if err != nil {
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return errors.Wrapf(err, "error getting filesystem entry for %v", *diffFirstObjectPath)
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}
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ent2, err := snapshotfs.FilesystemEntryFromIDWithPath(ctx, rep, *diffSecondObjectPath, false)
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if err != nil {
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return errors.Wrapf(err, "error getting filesystem entry for %v", *diffSecondObjectPath)
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}
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_, isDir1 := ent1.(fs.Directory)
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_, isDir2 := ent2.(fs.Directory)
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if isDir1 != isDir2 {
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return errors.New("arguments do diff must both be directories or both non-directories")
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}
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d, err := diff.NewComparer(os.Stdout)
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if err != nil {
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return errors.Wrap(err, "error creating comparer")
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}
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defer d.Close() //nolint:errcheck
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if *diffCompareFiles {
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parts := strings.Split(*diffCommandCommand, " ")
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d.DiffCommand = parts[0]
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d.DiffArguments = parts[1:]
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}
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if isDir1 {
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return d.Compare(ctx, ent1, ent2)
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}
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return errors.New("comparing files not implemented yet")
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}
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func defaultDiffCommand() string {
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if isWindows() {
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return "cmp"
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}
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return "diff -u"
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}
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func init() {
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diffCommand.Action(repositoryReaderAction(runDiffCommand))
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}
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