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120 lines
3.1 KiB
Go
120 lines
3.1 KiB
Go
package objectcmd
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import (
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"fmt"
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"io"
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cmds "github.com/ipfs/go-ipfs-cmds"
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"github.com/ipfs/go-merkledag/dagutils"
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path "github.com/ipfs/interface-go-ipfs-core/path"
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cmdenv "github.com/ipfs/kubo/core/commands/cmdenv"
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)
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const (
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verboseOptionName = "verbose"
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)
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type Changes struct {
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Changes []*dagutils.Change
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}
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var ObjectDiffCmd = &cmds.Command{
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Status: cmds.Deprecated, // https://github.com/ipfs/kubo/issues/7936
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Helptext: cmds.HelpText{
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Tagline: "Display the diff between two IPFS objects.",
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ShortDescription: `
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'ipfs object diff' is a command used to show the differences between
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two IPFS objects.`,
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LongDescription: `
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'ipfs object diff' is a command used to show the differences between
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two IPFS objects.
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Example:
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> ls foo
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bar baz/ giraffe
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> ipfs add -r foo
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...
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Added QmegHcnrPgMwC7tBiMxChD54fgQMBUecNw9nE9UUU4x1bz foo
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> OBJ_A=QmegHcnrPgMwC7tBiMxChD54fgQMBUecNw9nE9UUU4x1bz
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> echo "different content" > foo/bar
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> ipfs add -r foo
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...
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Added QmcmRptkSPWhptCttgHg27QNDmnV33wAJyUkCnAvqD3eCD foo
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> OBJ_B=QmcmRptkSPWhptCttgHg27QNDmnV33wAJyUkCnAvqD3eCD
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> ipfs object diff -v $OBJ_A $OBJ_B
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Changed "bar" from QmNgd5cz2jNftnAHBhcRUGdtiaMzb5Rhjqd4etondHHST8 to QmRfFVsjSXkhFxrfWnLpMae2M4GBVsry6VAuYYcji5MiZb.
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`,
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},
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Arguments: []cmds.Argument{
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cmds.StringArg("obj_a", true, false, "Object to diff against."),
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cmds.StringArg("obj_b", true, false, "Object to diff."),
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},
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Options: []cmds.Option{
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cmds.BoolOption(verboseOptionName, "v", "Print extra information."),
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},
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Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error {
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api, err := cmdenv.GetApi(env, req)
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if err != nil {
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return err
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}
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pa := path.New(req.Arguments[0])
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pb := path.New(req.Arguments[1])
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changes, err := api.Object().Diff(req.Context, pa, pb)
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if err != nil {
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return err
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}
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out := make([]*dagutils.Change, len(changes))
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for i, change := range changes {
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out[i] = &dagutils.Change{
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Type: dagutils.ChangeType(change.Type),
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Path: change.Path,
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}
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if change.Before != nil {
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out[i].Before = change.Before.Cid()
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}
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if change.After != nil {
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out[i].After = change.After.Cid()
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}
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}
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return cmds.EmitOnce(res, &Changes{out})
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},
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Type: Changes{},
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Encoders: cmds.EncoderMap{
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cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, out *Changes) error {
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verbose, _ := req.Options[verboseOptionName].(bool)
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for _, change := range out.Changes {
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if verbose {
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switch change.Type {
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case dagutils.Add:
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fmt.Fprintf(w, "Added new link %q pointing to %s.\n", change.Path, change.After)
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case dagutils.Mod:
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fmt.Fprintf(w, "Changed %q from %s to %s.\n", change.Path, change.Before, change.After)
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case dagutils.Remove:
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fmt.Fprintf(w, "Removed link %q (was %s).\n", change.Path, change.Before)
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}
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} else {
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switch change.Type {
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case dagutils.Add:
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fmt.Fprintf(w, "+ %s %q\n", change.After, change.Path)
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case dagutils.Mod:
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fmt.Fprintf(w, "~ %s %s %q\n", change.Before, change.After, change.Path)
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case dagutils.Remove:
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fmt.Fprintf(w, "- %s %q\n", change.Before, change.Path)
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}
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}
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}
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return nil
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}),
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},
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}
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