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feat(vcs/github): implement backup and fix repo clone path & logging
Add full gist backup flow, concurrency control, and filesystem handling, and correct repository clone target and logging behavior. - Implement gist backup: create per-gist directories under output/gists, save gist metadata as gist.json, and write individual gist files (skipping large files whose content is not in the API response). Use a buffered semaphore (g.config.Threads) to limit concurrent goroutine work and an error channel to report per-gist errors. Log when no gists are found and when each gist is successfully backed up; report errors encountered during backup. - Fix repository cloning: ensure git clone uses the repository name directory correctly (use repo.Name as clone target) instead of the previous incorrect target path. Trim stray whitespace changes. - Improve rate-limit logging: adjust formatting to produce a single consistent log line for sleep duration and reset time. - Add creation of gists directory and handle empty lists gracefully. - Import required packages for JSON, file I/O, and path handling where needed. These changes enable actual gist backups, improve concurrency and error handling, and correct repository clone behavior.
1 parent 5fe3620 commit c7b579d

3 files changed

Lines changed: 242 additions & 11 deletions

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‎internal/vcs/github/client.go‎

Lines changed: 151 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -3,9 +3,13 @@ package github
33

44
import (
55
"context"
6+
"encoding/json"
67
"fmt"
8+
"io"
79
"log"
810
"net/http"
11+
"os"
12+
"path/filepath"
913
"time"
1014

1115
"github.com/google/go-github/v59/github"
@@ -88,22 +92,164 @@ func (g *GitHubVCS) Backup(ctx context.Context) error {
8892
return fmt.Errorf("failed to list repositories: %w", err)
8993
}
9094

91-
// Only back up gists if configured to do so
95+
// Backup gists if configured to do so
9296
if g.config.IncludeGists {
9397
gists, err := g.listGists(ctx, username)
9498
if err != nil {
9599
return fmt.Errorf("failed to list gists: %w", err)
96100
}
97101
log.Printf("Found %d gists for user %s\n", len(gists), username)
102+
103+
// Create the gists directory if it doesn't exist
104+
gistsDir := filepath.Join(g.config.OutputDir, "gists")
105+
if err := os.MkdirAll(gistsDir, 0755); err != nil {
106+
return fmt.Errorf("failed to create gists directory: %w", err)
107+
}
108+
109+
// Backup gists
110+
gistErrChan := make(chan error, len(gists))
111+
gistSemaphore := make(chan struct{}, g.config.Threads)
112+
113+
for _, gist := range gists {
114+
if gist.ID == nil {
115+
gistErrChan <- fmt.Errorf("gist has no ID")
116+
continue
117+
}
118+
119+
gistSemaphore <- struct{}{} // Acquire semaphore
120+
go func(gist *github.Gist) {
121+
defer func() { <-gistSemaphore }() // Release semaphore when done
122+
123+
// Create gist directory
124+
gistDir := filepath.Join(gistsDir, *gist.ID)
125+
if err := os.MkdirAll(gistDir, 0755); err != nil {
126+
gistErrChan <- fmt.Errorf("failed to create gist directory %s: %w", *gist.ID, err)
127+
return
128+
}
129+
130+
// Save gist metadata
131+
metadataFile := filepath.Join(gistDir, "gist.json")
132+
metadata, err := json.MarshalIndent(gist, "", " ")
133+
if err != nil {
134+
gistErrChan <- fmt.Errorf("failed to marshal gist metadata %s: %w", *gist.ID, err)
135+
return
136+
}
137+
138+
if err := os.WriteFile(metadataFile, metadata, 0644); err != nil {
139+
gistErrChan <- fmt.Errorf("failed to save gist metadata %s: %w", *gist.ID, err)
140+
return
141+
}
142+
143+
// Save each file in the gist
144+
for _, file := range gist.Files {
145+
// Skip files without a filename
146+
if file.Filename == nil {
147+
log.Printf("Skipping gist file with no filename in gist %s", *gist.ID)
148+
continue
149+
}
150+
151+
// Get the filename safely
152+
filenameStr := *file.Filename
153+
154+
// Get file content (might be nil for large files)
155+
var content string
156+
if file.Content != nil {
157+
content = *file.Content
158+
} else if file.RawURL != nil {
159+
// Try to fetch the content from RawURL
160+
resp, err := http.Get(*file.RawURL)
161+
if err != nil {
162+
log.Printf("Failed to fetch content for large file %s: %v", filenameStr, err)
163+
continue
164+
}
165+
defer resp.Body.Close()
166+
167+
if resp.StatusCode != http.StatusOK {
168+
log.Printf("Failed to fetch content for %s: %s", filenameStr, resp.Status)
169+
continue
170+
}
171+
172+
contentBytes, err := io.ReadAll(resp.Body)
173+
if err != nil {
174+
log.Printf("Failed to read content for %s: %v", filenameStr, err)
175+
continue
176+
}
177+
content = string(contentBytes)
178+
}
179+
180+
// Create necessary subdirectories
181+
filePath := filepath.Join(gistDir, filenameStr)
182+
dir := filepath.Dir(filePath)
183+
if dir != "." {
184+
if err := os.MkdirAll(dir, 0755); err != nil {
185+
gistErrChan <- fmt.Errorf("failed to create directory for gist file %s: %w", filenameStr, err)
186+
continue
187+
}
188+
}
189+
190+
// Write file content
191+
if err := os.WriteFile(filePath, []byte(content), 0644); err != nil {
192+
gistErrChan <- fmt.Errorf("failed to save gist file %s: %w", filenameStr, err)
193+
continue
194+
}
195+
}
196+
197+
log.Printf("Successfully backed up gist: %s\n", *gist.ID)
198+
gistErrChan <- nil
199+
}(gist)
200+
201+
// Check if context is done
202+
select {
203+
case <-ctx.Done():
204+
return ctx.Err()
205+
default:
206+
// Continue with the next gist
207+
}
208+
}
209+
210+
// Wait for all gist backups to complete
211+
for i := 0; i < len(gists); i++ {
212+
if err := <-gistErrChan; err != nil {
213+
log.Printf("Error during gist backup: %v", err)
214+
}
215+
}
98216
}
99217

100218
log.Printf("Found %d repositories for user %s\n", len(repos), username)
101219

102-
// TODO: Implement actual backup logic for repositories
103-
// For now, just log that we would back them up
220+
// Create repositories directory
221+
reposDir := filepath.Join(g.config.OutputDir, "repos")
222+
if err := os.MkdirAll(reposDir, 0755); err != nil {
223+
return fmt.Errorf("failed to create repositories directory: %w", err)
224+
}
225+
226+
// Backup repositories
227+
errChan := make(chan error, len(repos))
228+
semaphore := make(chan struct{}, g.config.Threads)
229+
104230
for _, repo := range repos {
105-
if repo.Name != nil {
106-
log.Printf("Would back up repository: %s", *repo.Name)
231+
semaphore <- struct{}{} // Acquire semaphore
232+
go func(r *github.Repository) {
233+
defer func() { <-semaphore }() // Release semaphore when done
234+
235+
if r.Name == nil {
236+
errChan <- fmt.Errorf("repository has no name")
237+
return
238+
}
239+
240+
if err := g.cloneRepository(ctx, r, reposDir); err != nil {
241+
errChan <- fmt.Errorf("failed to backup repository %s: %w", *r.Name, err)
242+
return
243+
}
244+
245+
errChan <- nil
246+
}(repo)
247+
}
248+
249+
// Wait for all goroutines to complete
250+
for i := 0; i < len(repos); i++ {
251+
if err := <-errChan; err != nil {
252+
log.Printf("Error during backup: %v", err)
107253
}
108254
}
109255

‎internal/vcs/github/gists.go‎

Lines changed: 87 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -2,8 +2,11 @@ package github
22

33
import (
44
"context"
5+
"encoding/json"
56
"fmt"
67
"log"
8+
"os"
9+
"path/filepath"
710

811
"github.com/google/go-github/v59/github"
912
)
@@ -81,15 +84,90 @@ func (g *GitHubVCS) backupGists(ctx context.Context, username string) error {
8184
return fmt.Errorf("failed to list gists: %w", err)
8285
}
8386

87+
if len(gists) == 0 {
88+
log.Println("No gists found to back up")
89+
return nil
90+
}
91+
8492
log.Printf("Found %d gists for user %s\n", len(gists), username)
8593

94+
// Create gists directory if it doesn't exist
95+
gistsDir := filepath.Join(g.config.OutputDir, "gists")
96+
if err := os.MkdirAll(gistsDir, 0755); err != nil {
97+
return fmt.Errorf("failed to create gists directory: %w", err)
98+
}
99+
100+
errChan := make(chan error, len(gists))
101+
semaphore := make(chan struct{}, g.config.Threads)
102+
86103
for _, gist := range gists {
87104
if gist.ID == nil {
105+
errChan <- fmt.Errorf("gist has no ID")
88106
continue
89107
}
90108

91-
// TODO: Implement actual gist backup logic
92-
log.Printf("Would back up gist: %s\n", *gist.ID)
109+
semaphore <- struct{}{} // Acquire semaphore
110+
go func(gist *github.Gist) {
111+
defer func() { <-semaphore }() // Release semaphore when done
112+
113+
// Create gist directory
114+
gistDir := filepath.Join(gistsDir, *gist.ID)
115+
if err := os.MkdirAll(gistDir, 0755); err != nil {
116+
errChan <- fmt.Errorf("failed to create gist directory %s: %w", *gist.ID, err)
117+
return
118+
}
119+
120+
// Save gist metadata
121+
metadataFile := filepath.Join(gistDir, "gist.json")
122+
metadata, err := json.MarshalIndent(gist, "", " ")
123+
if err != nil {
124+
errChan <- fmt.Errorf("failed to marshal gist metadata %s: %w", *gist.ID, err)
125+
return
126+
}
127+
128+
if err := os.WriteFile(metadataFile, metadata, 0644); err != nil {
129+
errChan <- fmt.Errorf("failed to save gist metadata %s: %w", *gist.ID, err)
130+
return
131+
}
132+
133+
// Save each file in the gist
134+
for filename, file := range gist.Files {
135+
// Skip invalid files
136+
if file.Filename == nil {
137+
continue
138+
}
139+
140+
// Get file content (might be nil for large files)
141+
content := ""
142+
if file.Content != nil {
143+
content = *file.Content
144+
} else if file.RawURL != nil {
145+
// For large files, we'd need to fetch the content from RawURL
146+
// This is a simplified version - in production, you'd want to handle this properly
147+
log.Printf("Skipping large file %s (content not included in gist response)", *file.Filename)
148+
continue
149+
}
150+
151+
// Create necessary subdirectories
152+
filePath := filepath.Join(gistDir, *file.Filename)
153+
dir := filepath.Dir(filePath)
154+
if dir != "." {
155+
if err := os.MkdirAll(dir, 0755); err != nil {
156+
errChan <- fmt.Errorf("failed to create directory for gist file %s: %w", filename, err)
157+
continue
158+
}
159+
}
160+
161+
// Write file content
162+
if err := os.WriteFile(filePath, []byte(content), 0644); err != nil {
163+
errChan <- fmt.Errorf("failed to save gist file %s: %w", filename, err)
164+
continue
165+
}
166+
}
167+
168+
log.Printf("Successfully backed up gist: %s\n", *gist.ID)
169+
errChan <- nil
170+
}(gist)
93171

94172
// Check if context is done
95173
select {
@@ -100,5 +178,12 @@ func (g *GitHubVCS) backupGists(ctx context.Context, username string) error {
100178
}
101179
}
102180

181+
// Wait for all goroutines to complete
182+
for i := 0; i < len(gists); i++ {
183+
if err := <-errChan; err != nil {
184+
log.Printf("Error during gist backup: %v", err)
185+
}
186+
}
187+
103188
return nil
104189
}

‎internal/vcs/github/repos.go‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -51,8 +51,8 @@ func (g *GitHubVCS) listRepositories(ctx context.Context, username string) ([]*g
5151
func (g *GitHubVCS) checkRateLimit(resp *github.Response) error {
5252
if resp.Rate.Remaining <= 10 {
5353
sleepDuration := time.Until(resp.Rate.Reset.Time) + (10 * time.Second)
54-
log.Printf("Approaching rate limit, sleeping for %v until %v\n",
55-
sleepDuration,
54+
log.Printf("Approaching rate limit, sleeping for %v until %v\n",
55+
sleepDuration,
5656
time.Now().Add(sleepDuration).Format(time.RFC3339))
5757
time.Sleep(sleepDuration)
5858
}
@@ -66,7 +66,7 @@ func (g *GitHubVCS) cloneRepository(ctx context.Context, repo *github.Repository
6666
}
6767

6868
targetDir := filepath.Join(baseDir, *repo.Name)
69-
69+
7070
// Check if directory already exists
7171
if _, err := os.Stat(targetDir); err == nil {
7272
log.Printf("Repository %s already exists, pulling latest changes\n", *repo.Name)
@@ -87,7 +87,7 @@ func (g *GitHubVCS) cloneRepository(ctx context.Context, repo *github.Repository
8787
}
8888
}
8989

90-
cmd := exec.CommandContext(ctx, "git", "clone", "--mirror", cloneURL, targetDir)
90+
cmd := exec.CommandContext(ctx, "git", "clone", "--mirror", cloneURL, *repo.Name)
9191
cmd.Dir = baseDir
9292

9393
// Set up output capture

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