1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Package repository contains helper methods for working with a Git repo.
package repository
import (
"bytes"
"strings"
"github.com/MichaelMure/git-bug/util/git"
"github.com/MichaelMure/git-bug/util/lamport"
)
type RepoCommon interface {
// GetPath returns the path to the repo.
GetPath() string
// GetUserName returns the name the the user has used to configure git
GetUserName() (string, error)
// GetUserEmail returns the email address that the user has used to configure git.
GetUserEmail() (string, error)
// GetCoreEditor returns the name of the editor that the user has used to configure git.
GetCoreEditor() (string, error)
}
// Repo represents a source code repository.
type Repo interface {
RepoCommon
// FetchRefs fetch git refs from a remote
FetchRefs(remote string, refSpec string) (string, error)
// PushRefs push git refs to a remote
PushRefs(remote string, refSpec string) (string, error)
// StoreData will store arbitrary data and return the corresponding hash
StoreData(data []byte) (git.Hash, error)
// ReadData will attempt to read arbitrary data from the given hash
ReadData(hash git.Hash) ([]byte, error)
// StoreTree will store a mapping key-->Hash as a Git tree
StoreTree(mapping []TreeEntry) (git.Hash, error)
// StoreCommit will store a Git commit with the given Git tree
StoreCommit(treeHash git.Hash) (git.Hash, error)
// StoreCommit will store a Git commit with the given Git tree
StoreCommitWithParent(treeHash git.Hash, parent git.Hash) (git.Hash, error)
// UpdateRef will create or update a Git reference
UpdateRef(ref string, hash git.Hash) error
// ListRefs will return a list of Git ref matching the given refspec
ListRefs(refspec string) ([]string, error)
// RefExist will check if a reference exist in Git
RefExist(ref string) (bool, error)
// CopyRef will create a new reference with the same value as another one
CopyRef(source string, dest string) error
// ListCommits will return the list of tree hashes of a ref, in chronological order
ListCommits(ref string) ([]git.Hash, error)
// ListEntries will return the list of entries in a Git tree
ListEntries(hash git.Hash) ([]TreeEntry, error)
// FindCommonAncestor will return the last common ancestor of two chain of commit
FindCommonAncestor(hash1 git.Hash, hash2 git.Hash) (git.Hash, error)
// GetTreeHash return the git tree hash referenced in a commit
GetTreeHash(commit git.Hash) (git.Hash, error)
}
type ClockedRepo interface {
Repo
LoadClocks() error
WriteClocks() error
CreateTimeIncrement() (lamport.Time, error)
EditTimeIncrement() (lamport.Time, error)
CreateWitness(time lamport.Time) error
EditWitness(time lamport.Time) error
}
func prepareTreeEntries(entries []TreeEntry) bytes.Buffer {
var buffer bytes.Buffer
for _, entry := range entries {
buffer.WriteString(entry.Format())
}
return buffer
}
func readTreeEntries(s string) ([]TreeEntry, error) {
split := strings.Split(s, "\n")
casted := make([]TreeEntry, len(split))
for i, line := range split {
if line == "" {
continue
}
entry, err := ParseTreeEntry(line)
if err != nil {
return nil, err
}
casted[i] = entry
}
return casted, nil
}
|
