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 "github.com/go-git/go-git/v5/plumbing"
20 "tangled.org/core/api/tangled"
21 "tangled.org/core/appview/commitverify"
22 "tangled.org/core/appview/db"
23 "tangled.org/core/appview/models"
24 "tangled.org/core/appview/pages"
25 "tangled.org/core/appview/pages/markup"
26 "tangled.org/core/appview/pipelines"
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 var shas []string
117 for _, c := range commitsTrunc {
118 shas = append(shas, c.Hash.String())
119 }
120 type pipelineResult struct {
121 pipelines map[string]types.Pipeline
122 err error
123 }
124 pipelineCh := make(chan pipelineResult, 1)
125 go func() {
126 p, err := pipelines.FetchStatuses(r.Context(), f, shas)
127 pipelineCh <- pipelineResult{p, err}
128 }()
129
130 emails := uniqueEmails(commitsTrunc)
131 emailToDidMap, err := db.GetEmailToDid(rp.db, emails, true)
132 if err != nil {
133 l.Error("failed to get email to did map", "err", err)
134 }
135
136 vc, err := commitverify.GetVerifiedCommits(rp.db, emailToDidMap, commitsTrunc)
137 if err != nil {
138 l.Error("failed to GetVerifiedObjectCommits", "err", err)
139 }
140
141 var languageInfo []types.RepoLanguageDetails
142 if !result.IsEmpty {
143 langs, err := rp.getLanguageInfo(r.Context(), syntax.DID(f.RepoDid), result.Ref)
144 if err != nil {
145 l.Warn("failed to compute language percentages", "err", err)
146 // non-fatal
147 } else if ref == "" { // when request didn't specified ref, we are fetching default branch.
148 if err := func(repo syntax.DID, ref string, langs []*tangled.GitTempListLanguages_Language) error {
149 current := lo.SliceToMap(langs, func(lang *tangled.GitTempListLanguages_Language) (string, int64) {
150 return lang.Name, lang.Size
151 })
152
153 existing, err := db.GetRepoLanguages(rp.db, repo, ref)
154 if err != nil {
155 return err
156 }
157 if maps.Equal(current, existing) {
158 return nil
159 }
160
161 tx, err := rp.db.Begin()
162 if err != nil {
163 return err
164 }
165 defer tx.Rollback()
166
167 mlangs := lo.Map(langs, func(lang *tangled.GitTempListLanguages_Language, _ int) models.RepoLanguage {
168 return models.RepoLanguage{
169 RepoDid: repo,
170 Ref: ref,
171 IsDefaultRef: true,
172 Language: lang.Name,
173 Bytes: lang.Size,
174 }
175 })
176
177 if err := db.UpdateRepoLanguages(tx, repo, ref, mlangs); err != nil {
178 return err
179 }
180
181 return tx.Commit()
182 }(syntax.DID(f.RepoDid), result.Ref, langs); err != nil {
183 l.Error("failed to populate appview repo languages index", "err", err)
184 // non-fatal
185 }
186 languageInfo = makeLanguageStats(langs)
187 }
188 }
189
190 rp.pages.RepoIndexPage(w, pages.RepoIndexParams{
191 BaseParams: pages.BaseParamsFromContext(r.Context()),
192 RepoInfo: rp.repoResolver.GetRepoInfo(r, user),
193 TagMap: tagMap,
194 RepoIndexResponse: *result,
195 CommitsTrunc: commitsTrunc,
196 TagsTrunc: tagsTrunc,
197 // ForkInfo: forkInfo, // TODO: reinstate this after xrpc properly lands
198 BranchesTrunc: branchesTrunc,
199 EmailToDid: emailToDidMap,
200 VerifiedCommits: vc,
201 Languages: languageInfo,
202 })
203}
204
205func (rp *Repo) getLanguageInfo(
206 ctx context.Context,
207 repoId syntax.DID,
208 ref string,
209) ([]*tangled.GitTempListLanguages_Language, error) {
210 // non-fatal, fetch langs from knotmirror via XRPC
211 xrpcc := rp.knotMirrorXRPCClient()
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 := rp.knotMirrorXRPCClient()
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 TotalBranches: branchesResp.Total,
287 }, nil
288 }
289
290 // now run the remaining queries in parallel
291 var wg sync.WaitGroup
292 var errs error
293
294 var (
295 tagsResp types.RepoTagsResponse
296 treeResp *tangled.GitTempGetTree_Output
297 logResp types.RepoLogResponse
298 readmeContent string
299 readmeFileName string
300 )
301
302 // tags
303 wg.Go(func() {
304 tagsBytes, err := tangled.GitTempListTags(ctx, xrpcc, "", 0, repo.RepoDid)
305 if err != nil {
306 errs = errors.Join(errs, fmt.Errorf("failed to call git.ListTags: %w", err))
307 return
308 }
309
310 if err := json.Unmarshal(tagsBytes, &tagsResp); err != nil {
311 errs = errors.Join(errs, fmt.Errorf("failed to unmarshal git.ListTags: %w", err))
312 }
313 })
314
315 // tree/files
316 wg.Go(func() {
317 resp, err := tangled.GitTempGetTree(ctx, xrpcc, "", ref, repo.RepoDid)
318 if err != nil {
319 errs = errors.Join(errs, fmt.Errorf("failed to call git.GetTree: %w", err))
320 return
321 }
322 treeResp = resp
323
324 for _, file := range resp.Files {
325 if markup.IsReadmeFile(file.Name, file.Mode) {
326 readmeFileName = file.Name
327 break
328 }
329 }
330
331 if readmeFileName != "" {
332 bytes, err := tangled.GitTempGetBlob(ctx, xrpcc, readmeFileName, ref, repo.RepoDid)
333 if err != nil {
334 errs = errors.Join(errs, fmt.Errorf("failed to call git.getBlob: %w", err))
335 return
336 }
337 readmeContent = string(bytes)
338 }
339 })
340
341 // commits
342 wg.Go(func() {
343 logBytes, err := tangled.GitTempListCommits(ctx, xrpcc, "", 50, ref, repo.RepoDid)
344 if err != nil {
345 errs = errors.Join(errs, fmt.Errorf("failed to call git.ListCommits: %w", err))
346 return
347 }
348
349 if err := json.Unmarshal(logBytes, &logResp); err != nil {
350 errs = errors.Join(errs, fmt.Errorf("failed to unmarshal git.ListCommits: %w", err))
351 }
352 })
353
354 wg.Wait()
355
356 if errs != nil {
357 return nil, errs
358 }
359
360 var files []types.NiceTree
361 if treeResp != nil && treeResp.Files != nil {
362 for _, file := range treeResp.Files {
363 niceFile := types.NiceTree{
364 Name: file.Name,
365 Mode: file.Mode,
366 Size: file.Size,
367 }
368
369 if file.Last_commit != nil {
370 when, _ := time.Parse(time.RFC3339, file.Last_commit.When)
371 niceFile.LastCommit = &types.LastCommitInfo{
372 Hash: plumbing.NewHash(file.Last_commit.Hash),
373 Message: file.Last_commit.Message,
374 When: when,
375 }
376 }
377 files = append(files, niceFile)
378 }
379 }
380
381 result := &types.RepoIndexResponse{
382 IsEmpty: false,
383 Ref: ref,
384 Readme: readmeContent,
385 ReadmeFileName: readmeFileName,
386 Commits: logResp.Commits,
387 Files: files,
388 Branches: branchesResp.Branches,
389 TotalBranches: branchesResp.Total,
390 Tags: tagsResp.Tags,
391 TotalTags: tagsResp.Total,
392 TotalCommits: logResp.Total,
393 }
394
395 return result, nil
396}