alice.pds.demo.boltless.dev
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1package repo
2
3import (
4 "errors"
5 "fmt"
6 "maps"
7 "net/http"
8 "net/url"
9 "slices"
10 "sort"
11 "strings"
12 "sync"
13 "time"
14
15 "context"
16 "encoding/json"
17
18 "github.com/bluesky-social/indigo/atproto/syntax"
19 indigoxrpc "github.com/bluesky-social/indigo/xrpc"
20 "github.com/go-git/go-git/v5/plumbing"
21 "tangled.org/core/api/tangled"
22 "tangled.org/core/appview/commitverify"
23 "tangled.org/core/appview/db"
24 "tangled.org/core/appview/models"
25 "tangled.org/core/appview/pages"
26 "tangled.org/core/appview/pages/markup"
27 "tangled.org/core/types"
28
29 "github.com/go-chi/chi/v5"
30 "github.com/go-enry/go-enry/v2"
31 "github.com/samber/lo"
32)
33
34func (rp *Repo) Index(w http.ResponseWriter, r *http.Request) {
35 l := rp.logger.With("handler", "RepoIndex")
36
37 ref := chi.URLParam(r, "ref")
38 ref, _ = url.PathUnescape(ref)
39
40 f, err := rp.repoResolver.Resolve(r)
41 if err != nil {
42 l.Error("failed to fully resolve repo", "err", err)
43 return
44 }
45
46 user := rp.oauth.GetMultiAccountUser(r)
47
48 if user != nil {
49 userDid := user.Did
50 repoDid := f.RepoDid
51 go func() {
52 if err := db.UpsertRecentLink(rp.db, userDid, models.RecentLinkTypeRepo, repoDid); err != nil {
53 l.Error("failed to upsert recent link", "err", err)
54 }
55 }()
56 }
57
58 // Build index response from multiple XRPC calls
59 result, err := rp.buildIndexResponse(r.Context(), f, ref)
60 if err != nil {
61 l.Error("failed to build index response", "err", err)
62 rp.pages.RepoIndexPage(w, pages.RepoIndexParams{
63 BaseParams: pages.BaseParamsFromContext(r.Context()),
64 KnotUnreachable: true,
65 RepoInfo: rp.repoResolver.GetRepoInfo(r, user),
66 })
67 return
68 }
69
70 tagMap := make(map[string][]string)
71 for _, tag := range result.Tags {
72 hash := tag.Hash
73 if tag.Tag != nil {
74 hash = tag.Tag.Target.String()
75 }
76 tagMap[hash] = append(tagMap[hash], tag.Name)
77 }
78
79 for _, branch := range result.Branches {
80 hash := branch.Hash
81 tagMap[hash] = append(tagMap[hash], branch.Name)
82 }
83
84 sortFiles(result.Files)
85
86 slices.SortFunc(result.Branches, func(a, b types.Branch) int {
87 if a.Name == result.Ref {
88 return -1
89 }
90 if a.IsDefault {
91 return -1
92 }
93 if b.IsDefault {
94 return 1
95 }
96 if a.Commit != nil && b.Commit != nil {
97 if a.Commit.Committer.When.Before(b.Commit.Committer.When) {
98 return 1
99 } else {
100 return -1
101 }
102 }
103 return strings.Compare(a.Name, b.Name) * -1
104 })
105
106 commitCount := len(result.Commits)
107 branchCount := len(result.Branches)
108 tagCount := len(result.Tags)
109 fileCount := len(result.Files)
110
111 commitCount, branchCount, tagCount = balanceIndexItems(commitCount, branchCount, tagCount, fileCount)
112 commitsTrunc := result.Commits[:min(commitCount, len(result.Commits))]
113 tagsTrunc := result.Tags[:min(tagCount, len(result.Tags))]
114 branchesTrunc := result.Branches[:min(branchCount, len(result.Branches))]
115
116 emails := uniqueEmails(commitsTrunc)
117 emailToDidMap, err := db.GetEmailToDid(rp.db, emails, true)
118 if err != nil {
119 l.Error("failed to get email to did map", "err", err)
120 }
121
122 vc, err := commitverify.GetVerifiedCommits(rp.db, emailToDidMap, commitsTrunc)
123 if err != nil {
124 l.Error("failed to GetVerifiedObjectCommits", "err", err)
125 }
126
127 var languageInfo []types.RepoLanguageDetails
128 if !result.IsEmpty {
129 langs, err := rp.getLanguageInfo(r.Context(), syntax.DID(f.RepoDid), result.Ref)
130 if err != nil {
131 l.Warn("failed to compute language percentages", "err", err)
132 // non-fatal
133 } else if ref == "" { // when request didn't specified ref, we are fetching default branch.
134 if err := func(repo syntax.DID, ref string, langs []*tangled.GitTempListLanguages_Language) error {
135 current := lo.SliceToMap(langs, func(lang *tangled.GitTempListLanguages_Language) (string, int64) {
136 return lang.Name, lang.Size
137 })
138
139 existing, err := db.GetRepoLanguages(rp.db, repo, ref)
140 if err != nil {
141 return err
142 }
143 if maps.Equal(current, existing) {
144 return nil
145 }
146
147 tx, err := rp.db.Begin()
148 if err != nil {
149 return err
150 }
151 defer tx.Rollback()
152
153 mlangs := lo.Map(langs, func(lang *tangled.GitTempListLanguages_Language, _ int) models.RepoLanguage {
154 return models.RepoLanguage{
155 RepoDid: repo,
156 Ref: ref,
157 IsDefaultRef: true,
158 Language: lang.Name,
159 Bytes: lang.Size,
160 }
161 })
162
163 if err := db.UpdateRepoLanguages(tx, repo, ref, mlangs); err != nil {
164 return err
165 }
166
167 return tx.Commit()
168 }(syntax.DID(f.RepoDid), result.Ref, langs); err != nil {
169 l.Error("failed to populate appview repo languages index", "err", err)
170 // non-fatal
171 }
172 languageInfo = makeLanguageStats(langs)
173 }
174 }
175
176 var shas []string
177 for _, c := range commitsTrunc {
178 shas = append(shas, c.Hash.String())
179 }
180 pipelines, err := getPipelineStatuses(r.Context(), f, shas)
181 if err != nil {
182 l.Error("failed to fetch pipeline statuses", "err", err)
183 // non-fatal
184 }
185
186 rp.pages.RepoIndexPage(w, pages.RepoIndexParams{
187 BaseParams: pages.BaseParamsFromContext(r.Context()),
188 RepoInfo: rp.repoResolver.GetRepoInfo(r, user),
189 TagMap: tagMap,
190 RepoIndexResponse: *result,
191 CommitsTrunc: commitsTrunc,
192 TagsTrunc: tagsTrunc,
193 // ForkInfo: forkInfo, // TODO: reinstate this after xrpc properly lands
194 BranchesTrunc: branchesTrunc,
195 EmailToDid: emailToDidMap,
196 VerifiedCommits: vc,
197 Languages: languageInfo,
198 Pipelines: pipelines,
199 })
200}
201
202func (rp *Repo) getLanguageInfo(
203 ctx context.Context,
204 repoId syntax.DID,
205 ref string,
206) ([]*tangled.GitTempListLanguages_Language, error) {
207 // non-fatal, fetch langs from knotmirror via XRPC
208 xrpcc := &indigoxrpc.Client{
209 Host: rp.config.KnotMirror.Url,
210 Client: http.DefaultClient,
211 }
212 out, err := tangled.GitTempListLanguages(ctx, xrpcc, ref, repoId.String())
213 if err != nil {
214 return nil, fmt.Errorf("calling knotmirror git.listLanguages: %w", err)
215 }
216
217 if out == nil || out.Languages == nil {
218 return nil, nil
219 }
220
221 return out.Languages, nil
222}
223
224func makeLanguageStats(langs []*tangled.GitTempListLanguages_Language) []types.RepoLanguageDetails {
225 if len(langs) == 0 {
226 return nil
227 }
228 var total int64
229 for _, lang := range langs {
230 total += lang.Size
231 }
232
233 var languageStats []types.RepoLanguageDetails
234 for _, l := range langs {
235 languageStats = append(languageStats, types.RepoLanguageDetails{
236 Name: l.Name,
237 Color: enry.GetColor(l.Name),
238 Percentage: float32(l.Size) / float32(total) * 100,
239 })
240 }
241
242 sort.Slice(languageStats, func(i, j int) bool {
243 if languageStats[i].Name == enry.OtherLanguage {
244 return false
245 }
246 if languageStats[j].Name == enry.OtherLanguage {
247 return true
248 }
249 if languageStats[i].Percentage != languageStats[j].Percentage {
250 return languageStats[i].Percentage > languageStats[j].Percentage
251 }
252 return languageStats[i].Name < languageStats[j].Name
253 })
254 return languageStats
255}
256
257// buildIndexResponse creates a RepoIndexResponse by combining multiple xrpc calls in parallel
258func (rp *Repo) buildIndexResponse(ctx context.Context, repo *models.Repo, ref string) (*types.RepoIndexResponse, error) {
259 xrpcc := &indigoxrpc.Client{Host: rp.config.KnotMirror.Url}
260
261 branchesBytes, err := tangled.GitTempListBranches(ctx, xrpcc, "", 0, repo.RepoDid)
262 if err != nil {
263 return nil, fmt.Errorf("calling knotmirror git.listBranches: %w", err)
264 }
265
266 var branchesResp types.RepoBranchesResponse
267 if err := json.Unmarshal(branchesBytes, &branchesResp); err != nil {
268 return nil, fmt.Errorf("failed to unmarshal branches response: %w", err)
269 }
270
271 // if no ref specified, use default branch or first available
272 if ref == "" {
273 for _, branch := range branchesResp.Branches {
274 if branch.IsDefault {
275 ref = branch.Name
276 break
277 }
278 }
279 }
280
281 // if ref is still empty, this means the default branch is not set
282 if ref == "" {
283 return &types.RepoIndexResponse{
284 IsEmpty: true,
285 Branches: branchesResp.Branches,
286 }, nil
287 }
288
289 // now run the remaining queries in parallel
290 var wg sync.WaitGroup
291 var errs error
292
293 var (
294 tagsResp types.RepoTagsResponse
295 treeResp *tangled.GitTempGetTree_Output
296 logResp types.RepoLogResponse
297 readmeContent string
298 readmeFileName string
299 )
300
301 // tags
302 wg.Go(func() {
303 tagsBytes, err := tangled.GitTempListTags(ctx, xrpcc, "", 0, repo.RepoDid)
304 if err != nil {
305 errs = errors.Join(errs, fmt.Errorf("failed to call git.ListTags: %w", err))
306 return
307 }
308
309 if err := json.Unmarshal(tagsBytes, &tagsResp); err != nil {
310 errs = errors.Join(errs, fmt.Errorf("failed to unmarshal git.ListTags: %w", err))
311 }
312 })
313
314 // tree/files
315 wg.Go(func() {
316 resp, err := tangled.GitTempGetTree(ctx, xrpcc, "", ref, repo.RepoDid)
317 if err != nil {
318 errs = errors.Join(errs, fmt.Errorf("failed to call git.GetTree: %w", err))
319 return
320 }
321 treeResp = resp
322
323 for _, file := range resp.Files {
324 if markup.IsReadmeFile(file.Name, file.Mode) {
325 readmeFileName = file.Name
326 break
327 }
328 }
329
330 if readmeFileName != "" {
331 bytes, err := tangled.GitTempGetBlob(ctx, xrpcc, readmeFileName, ref, repo.RepoDid)
332 if err != nil {
333 errs = errors.Join(errs, fmt.Errorf("failed to call git.getBlob: %w", err))
334 return
335 }
336 readmeContent = string(bytes)
337 }
338 })
339
340 // commits
341 wg.Go(func() {
342 logBytes, err := tangled.GitTempListCommits(ctx, xrpcc, "", 50, ref, repo.RepoDid)
343 if err != nil {
344 errs = errors.Join(errs, fmt.Errorf("failed to call git.ListCommits: %w", err))
345 return
346 }
347
348 if err := json.Unmarshal(logBytes, &logResp); err != nil {
349 errs = errors.Join(errs, fmt.Errorf("failed to unmarshal git.ListCommits: %w", err))
350 }
351 })
352
353 wg.Wait()
354
355 if errs != nil {
356 return nil, errs
357 }
358
359 var files []types.NiceTree
360 if treeResp != nil && treeResp.Files != nil {
361 for _, file := range treeResp.Files {
362 niceFile := types.NiceTree{
363 Name: file.Name,
364 Mode: file.Mode,
365 Size: file.Size,
366 }
367
368 if file.Last_commit != nil {
369 when, _ := time.Parse(time.RFC3339, file.Last_commit.When)
370 niceFile.LastCommit = &types.LastCommitInfo{
371 Hash: plumbing.NewHash(file.Last_commit.Hash),
372 Message: file.Last_commit.Message,
373 When: when,
374 }
375 }
376 files = append(files, niceFile)
377 }
378 }
379
380 result := &types.RepoIndexResponse{
381 IsEmpty: false,
382 Ref: ref,
383 Readme: readmeContent,
384 ReadmeFileName: readmeFileName,
385 Commits: logResp.Commits,
386 Files: files,
387 Branches: branchesResp.Branches,
388 Tags: tagsResp.Tags,
389 TotalCommits: logResp.Total,
390 }
391
392 return result, nil
393}