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-rw-r--r--vendor/code.gitea.io/git/parse.go81
1 files changed, 81 insertions, 0 deletions
diff --git a/vendor/code.gitea.io/git/parse.go b/vendor/code.gitea.io/git/parse.go
new file mode 100644
index 0000000000..5c964f16ee
--- /dev/null
+++ b/vendor/code.gitea.io/git/parse.go
@@ -0,0 +1,81 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package git
+
+import (
+ "bytes"
+ "fmt"
+ "strconv"
+)
+
+// ParseTreeEntries parses the output of a `git ls-tree` command.
+func ParseTreeEntries(data []byte) ([]*TreeEntry, error) {
+ return parseTreeEntries(data, nil)
+}
+
+func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
+ entries := make([]*TreeEntry, 0, 10)
+ for pos := 0; pos < len(data); {
+ // expect line to be of the form "<mode> <type> <sha>\t<filename>"
+ entry := new(TreeEntry)
+ entry.ptree = ptree
+ if pos+6 > len(data) {
+ return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
+ }
+ switch string(data[pos : pos+6]) {
+ case "100644":
+ entry.mode = EntryModeBlob
+ entry.Type = ObjectBlob
+ pos += 12 // skip over "100644 blob "
+ case "100755":
+ entry.mode = EntryModeExec
+ entry.Type = ObjectBlob
+ pos += 12 // skip over "100755 blob "
+ case "120000":
+ entry.mode = EntryModeSymlink
+ entry.Type = ObjectBlob
+ pos += 12 // skip over "120000 blob "
+ case "160000":
+ entry.mode = EntryModeCommit
+ entry.Type = ObjectCommit
+ pos += 14 // skip over "160000 object "
+ case "040000":
+ entry.mode = EntryModeTree
+ entry.Type = ObjectTree
+ pos += 12 // skip over "040000 tree "
+ default:
+ return nil, fmt.Errorf("unknown type: %v", string(data[pos:pos+6]))
+ }
+
+ if pos+40 > len(data) {
+ return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
+ }
+ id, err := NewIDFromString(string(data[pos : pos+40]))
+ if err != nil {
+ return nil, fmt.Errorf("Invalid ls-tree output: %v", err)
+ }
+ entry.ID = id
+ pos += 41 // skip over sha and trailing space
+
+ end := pos + bytes.IndexByte(data[pos:], '\n')
+ if end < pos {
+ return nil, fmt.Errorf("Invalid ls-tree output: %s", string(data))
+ }
+
+ // In case entry name is surrounded by double quotes(it happens only in git-shell).
+ if data[pos] == '"' {
+ entry.name, err = strconv.Unquote(string(data[pos:end]))
+ if err != nil {
+ return nil, fmt.Errorf("Invalid ls-tree output: %v", err)
+ }
+ } else {
+ entry.name = string(data[pos:end])
+ }
+
+ pos = end + 1
+ entries = append(entries, entry)
+ }
+ return entries, nil
+}