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-rw-r--r--plumbing/format/index/encoder.go34
-rw-r--r--plumbing/format/index/encoder_test.go26
-rw-r--r--plumbing/format/index/index.go18
3 files changed, 64 insertions, 14 deletions
diff --git a/plumbing/format/index/encoder.go b/plumbing/format/index/encoder.go
index 00d4e7a..2c94d93 100644
--- a/plumbing/format/index/encoder.go
+++ b/plumbing/format/index/encoder.go
@@ -14,7 +14,7 @@ import (
var (
// EncodeVersionSupported is the range of supported index versions
- EncodeVersionSupported uint32 = 2
+ EncodeVersionSupported uint32 = 3
// ErrInvalidTimestamp is returned by Encode if a Index with a Entry with
// negative timestamp values
@@ -36,9 +36,9 @@ func NewEncoder(w io.Writer) *Encoder {
// Encode writes the Index to the stream of the encoder.
func (e *Encoder) Encode(idx *Index) error {
- // TODO: support versions v3 and v4
+ // TODO: support v4
// TODO: support extensions
- if idx.Version != EncodeVersionSupported {
+ if idx.Version > EncodeVersionSupported {
return ErrUnsupportedVersion
}
@@ -68,8 +68,12 @@ func (e *Encoder) encodeEntries(idx *Index) error {
if err := e.encodeEntry(entry); err != nil {
return err
}
+ entryLength := entryHeaderLength
+ if entry.IntentToAdd || entry.SkipWorktree {
+ entryLength += 2
+ }
- wrote := entryHeaderLength + len(entry.Name)
+ wrote := entryLength + len(entry.Name)
if err := e.padEntry(wrote); err != nil {
return err
}
@@ -79,10 +83,6 @@ func (e *Encoder) encodeEntries(idx *Index) error {
}
func (e *Encoder) encodeEntry(entry *Entry) error {
- if entry.IntentToAdd || entry.SkipWorktree {
- return ErrUnsupportedVersion
- }
-
sec, nsec, err := e.timeToUint32(&entry.CreatedAt)
if err != nil {
return err
@@ -110,9 +110,25 @@ func (e *Encoder) encodeEntry(entry *Entry) error {
entry.GID,
entry.Size,
entry.Hash[:],
- flags,
}
+ flagsFlow := []interface{}{flags}
+
+ if entry.IntentToAdd || entry.SkipWorktree {
+ var extendedFlags uint16
+
+ if entry.IntentToAdd {
+ extendedFlags |= intentToAddMask
+ }
+ if entry.SkipWorktree {
+ extendedFlags |= skipWorkTreeMask
+ }
+
+ flagsFlow = []interface{}{flags | entryExtended, extendedFlags}
+ }
+
+ flow = append(flow, flagsFlow...)
+
if err := binary.Write(e.w, flow...); err != nil {
return err
}
diff --git a/plumbing/format/index/encoder_test.go b/plumbing/format/index/encoder_test.go
index b7a73cb..25c24f1 100644
--- a/plumbing/format/index/encoder_test.go
+++ b/plumbing/format/index/encoder_test.go
@@ -57,7 +57,7 @@ func (s *IndexSuite) TestEncode(c *C) {
}
func (s *IndexSuite) TestEncodeUnsupportedVersion(c *C) {
- idx := &Index{Version: 3}
+ idx := &Index{Version: 4}
buf := bytes.NewBuffer(nil)
e := NewEncoder(buf)
@@ -67,24 +67,40 @@ func (s *IndexSuite) TestEncodeUnsupportedVersion(c *C) {
func (s *IndexSuite) TestEncodeWithIntentToAddUnsupportedVersion(c *C) {
idx := &Index{
- Version: 2,
+ Version: 3,
Entries: []*Entry{{IntentToAdd: true}},
}
buf := bytes.NewBuffer(nil)
e := NewEncoder(buf)
err := e.Encode(idx)
- c.Assert(err, Equals, ErrUnsupportedVersion)
+ c.Assert(err, IsNil)
+
+ output := &Index{}
+ d := NewDecoder(buf)
+ err = d.Decode(output)
+ c.Assert(err, IsNil)
+
+ c.Assert(cmp.Equal(idx, output), Equals, true)
+ c.Assert(output.Entries[0].IntentToAdd, Equals, true)
}
func (s *IndexSuite) TestEncodeWithSkipWorktreeUnsupportedVersion(c *C) {
idx := &Index{
- Version: 2,
+ Version: 3,
Entries: []*Entry{{SkipWorktree: true}},
}
buf := bytes.NewBuffer(nil)
e := NewEncoder(buf)
err := e.Encode(idx)
- c.Assert(err, Equals, ErrUnsupportedVersion)
+ c.Assert(err, IsNil)
+
+ output := &Index{}
+ d := NewDecoder(buf)
+ err = d.Decode(output)
+ c.Assert(err, IsNil)
+
+ c.Assert(cmp.Equal(idx, output), Equals, true)
+ c.Assert(output.Entries[0].SkipWorktree, Equals, true)
}
diff --git a/plumbing/format/index/index.go b/plumbing/format/index/index.go
index 649416a..f4c7647 100644
--- a/plumbing/format/index/index.go
+++ b/plumbing/format/index/index.go
@@ -5,6 +5,7 @@ import (
"errors"
"fmt"
"path/filepath"
+ "strings"
"time"
"github.com/go-git/go-git/v5/plumbing"
@@ -211,3 +212,20 @@ type EndOfIndexEntry struct {
// their contents).
Hash plumbing.Hash
}
+
+// SkipUnless applies patterns in the form of A, A/B, A/B/C
+// to the index to prevent the files from being checked out
+func (i *Index) SkipUnless(patterns []string) {
+ for _, e := range i.Entries {
+ var include bool
+ for _, pattern := range patterns {
+ if strings.HasPrefix(e.Name, pattern) {
+ include = true
+ break
+ }
+ }
+ if !include {
+ e.SkipWorktree = true
+ }
+ }
+}