1package cache
2
3import (
4 "fmt"
5
6 "github.com/go-git/go-billy/v5"
7 "github.com/pkg/errors"
8
9 "github.com/MichaelMure/git-bug/bug"
10 "github.com/MichaelMure/git-bug/entity"
11 "github.com/MichaelMure/git-bug/identity"
12 "github.com/MichaelMure/git-bug/repository"
13)
14
15func (c *RepoCache) Name() string {
16 return c.name
17}
18
19// LocalConfig give access to the repository scoped configuration
20func (c *RepoCache) LocalConfig() repository.Config {
21 return c.repo.LocalConfig()
22}
23
24// GlobalConfig give access to the global scoped configuration
25func (c *RepoCache) GlobalConfig() repository.Config {
26 return c.repo.GlobalConfig()
27}
28
29// AnyConfig give access to a merged local/global configuration
30func (c *RepoCache) AnyConfig() repository.ConfigRead {
31 return c.repo.AnyConfig()
32}
33
34// Keyring give access to a user-wide storage for secrets
35func (c *RepoCache) Keyring() repository.Keyring {
36 return c.repo.Keyring()
37}
38
39// GetUserName returns the name the user has used to configure git
40func (c *RepoCache) GetUserName() (string, error) {
41 return c.repo.GetUserName()
42}
43
44// GetUserEmail returns the email address that the user has used to configure git.
45func (c *RepoCache) GetUserEmail() (string, error) {
46 return c.repo.GetUserEmail()
47}
48
49// GetCoreEditor returns the name of the editor that the user has used to configure git.
50func (c *RepoCache) GetCoreEditor() (string, error) {
51 return c.repo.GetCoreEditor()
52}
53
54// GetRemotes returns the configured remotes repositories.
55func (c *RepoCache) GetRemotes() (map[string]string, error) {
56 return c.repo.GetRemotes()
57}
58
59// LocalStorage return a billy.Filesystem giving access to $RepoPath/.git/git-bug
60func (c *RepoCache) LocalStorage() billy.Filesystem {
61 return c.repo.LocalStorage()
62}
63
64// ReadData will attempt to read arbitrary data from the given hash
65func (c *RepoCache) ReadData(hash repository.Hash) ([]byte, error) {
66 return c.repo.ReadData(hash)
67}
68
69// StoreData will store arbitrary data and return the corresponding hash
70func (c *RepoCache) StoreData(data []byte) (repository.Hash, error) {
71 return c.repo.StoreData(data)
72}
73
74// Fetch retrieve updates from a remote
75// This does not change the local bugs or identities state
76func (c *RepoCache) Fetch(remote string) (string, error) {
77 stdout1, err := identity.Fetch(c.repo, remote)
78 if err != nil {
79 return stdout1, err
80 }
81
82 stdout2, err := bug.Fetch(c.repo, remote)
83 if err != nil {
84 return stdout2, err
85 }
86
87 return stdout1 + stdout2, nil
88}
89
90// MergeAll will merge all the available remote bug and identities
91func (c *RepoCache) MergeAll(remote string) <-chan entity.MergeResult {
92 out := make(chan entity.MergeResult)
93
94 // Intercept merge results to update the cache properly
95 go func() {
96 defer close(out)
97
98 author, err := c.GetUserIdentity()
99 if err != nil {
100 out <- entity.NewMergeError(err, "")
101 return
102 }
103
104 results := identity.MergeAll(c.repo, remote)
105 for result := range results {
106 out <- result
107
108 if result.Err != nil {
109 continue
110 }
111
112 switch result.Status {
113 case entity.MergeStatusNew, entity.MergeStatusUpdated:
114 i := result.Entity.(*identity.Identity)
115 c.muIdentity.Lock()
116 c.identitiesExcerpts[result.Id] = NewIdentityExcerpt(i)
117 c.muIdentity.Unlock()
118 }
119 }
120
121 results = bug.MergeAll(c.repo, remote, author)
122 for result := range results {
123 out <- result
124
125 if result.Err != nil {
126 continue
127 }
128
129 switch result.Status {
130 case entity.MergeStatusNew, entity.MergeStatusUpdated:
131 b := result.Entity.(*bug.Bug)
132 snap := b.Compile()
133 c.muBug.Lock()
134 c.bugExcerpts[result.Id] = NewBugExcerpt(b, snap)
135 c.muBug.Unlock()
136 }
137 }
138
139 err = c.write()
140 if err != nil {
141 out <- entity.NewMergeError(err, "")
142 return
143 }
144 }()
145
146 return out
147}
148
149// Push update a remote with the local changes
150func (c *RepoCache) Push(remote string) (string, error) {
151 stdout1, err := identity.Push(c.repo, remote)
152 if err != nil {
153 return stdout1, err
154 }
155
156 stdout2, err := bug.Push(c.repo, remote)
157 if err != nil {
158 return stdout2, err
159 }
160
161 return stdout1 + stdout2, nil
162}
163
164// Pull will do a Fetch + MergeAll
165// This function will return an error if a merge fail
166func (c *RepoCache) Pull(remote string) error {
167 _, err := c.Fetch(remote)
168 if err != nil {
169 return err
170 }
171
172 for merge := range c.MergeAll(remote) {
173 if merge.Err != nil {
174 return merge.Err
175 }
176 if merge.Status == entity.MergeStatusInvalid {
177 return errors.Errorf("merge failure: %s", merge.Reason)
178 }
179 }
180
181 return nil
182}
183
184func (c *RepoCache) SetUserIdentity(i *IdentityCache) error {
185 err := identity.SetUserIdentity(c.repo, i.Identity)
186 if err != nil {
187 return err
188 }
189
190 c.muIdentity.RLock()
191 defer c.muIdentity.RUnlock()
192
193 // Make sure that everything is fine
194 if _, ok := c.identities[i.Id()]; !ok {
195 panic("SetUserIdentity while the identity is not from the cache, something is wrong")
196 }
197
198 c.userIdentityId = i.Id()
199
200 return nil
201}
202
203func (c *RepoCache) GetUserIdentity() (*IdentityCache, error) {
204 if c.userIdentityId != "" {
205 i, ok := c.identities[c.userIdentityId]
206 if ok {
207 return i, nil
208 }
209 }
210
211 c.muIdentity.Lock()
212 defer c.muIdentity.Unlock()
213
214 i, err := identity.GetUserIdentity(c.repo)
215 if err != nil {
216 return nil, err
217 }
218
219 cached := NewIdentityCache(c, i)
220 c.identities[i.Id()] = cached
221 c.userIdentityId = i.Id()
222
223 return cached, nil
224}
225
226func (c *RepoCache) GetUserIdentityExcerpt() (*IdentityExcerpt, error) {
227 if c.userIdentityId == "" {
228 id, err := identity.GetUserIdentityId(c.repo)
229 if err != nil {
230 return nil, err
231 }
232 c.userIdentityId = id
233 }
234
235 c.muIdentity.RLock()
236 defer c.muIdentity.RUnlock()
237
238 excerpt, ok := c.identitiesExcerpts[c.userIdentityId]
239 if !ok {
240 return nil, fmt.Errorf("cache: missing identity excerpt %v", c.userIdentityId)
241 }
242 return excerpt, nil
243}
244
245func (c *RepoCache) IsUserIdentitySet() (bool, error) {
246 return identity.IsUserIdentitySet(c.repo)
247}