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|
package main
import (
"os"
"path/filepath"
)
func syncCreate(srcPath, destPath, relPath string, manifest *Manifest, stack *GitignoreStack, dryRun bool, watcher Watcher) {
info, err := os.Lstat(srcPath)
if err != nil {
if os.IsNotExist(err) {
return
}
logErrorf("stat %s: %v", relPath, err)
return
}
if info.IsDir() {
if hasGitignore(srcPath) {
stack.Push(srcPath)
}
if watcher != nil {
watcher.Add(srcPath)
filepath.Walk(srcPath, func(path string, info os.FileInfo, err error) error {
if err != nil || !info.IsDir() || path == srcPath {
return nil
}
watcher.Add(path)
return nil
})
}
if dryRun {
logInfo("[dry-run] would create dir: %s", relPath)
return
}
if err := os.MkdirAll(destPath, info.Mode()); err != nil {
logErrorf("mkdir %s: %v", relPath, err)
}
return
}
linkTarget := ""
if info.Mode()&os.ModeSymlink != 0 {
linkTarget, err = os.Readlink(srcPath)
if err != nil {
logErrorf("readlink %s: %v", relPath, err)
return
}
}
meta := FileMeta{
Size: info.Size(),
Mode: info.Mode(),
ModTime: info.ModTime(),
Symlink: linkTarget,
}
manifest.Files[relPath] = meta
if dryRun {
logInfo("[dry-run] would sync: %s", relPath)
return
}
os.MkdirAll(filepath.Dir(destPath), 0755)
os.Remove(destPath)
if linkTarget != "" {
if err := os.Symlink(linkTarget, destPath); err != nil {
logErrorf("symlink %s: %v", relPath, err)
}
logInfo("sync: %s -> %s (symlink)", relPath, linkTarget)
return
}
if err := copyFileWithRetry(srcPath, destPath, info.Mode()); err != nil {
logErrorf("copy %s: %v", relPath, err)
} else {
logInfo("sync: %s", relPath)
}
}
func syncWrite(srcPath, destPath, relPath string, manifest *Manifest, dryRun bool) {
info, err := os.Lstat(srcPath)
if err != nil {
if os.IsNotExist(err) {
return
}
logErrorf("stat %s: %v", relPath, err)
return
}
linkTarget := ""
if info.Mode()&os.ModeSymlink != 0 {
linkTarget, err = os.Readlink(srcPath)
if err != nil {
logErrorf("readlink %s: %v", relPath, err)
return
}
}
meta, exists := manifest.Files[relPath]
if exists && meta.Size == info.Size() && meta.Symlink == linkTarget {
return
}
manifest.Files[relPath] = FileMeta{
Size: info.Size(),
Mode: info.Mode(),
ModTime: info.ModTime(),
Symlink: linkTarget,
}
if dryRun {
logInfo("[dry-run] would update: %s", relPath)
return
}
os.Remove(destPath)
if linkTarget != "" {
if err := os.Symlink(linkTarget, destPath); err != nil {
logErrorf("symlink %s: %v", relPath, err)
}
logInfo("sync: %s -> %s (symlink)", relPath, linkTarget)
return
}
if err := copyFileWithRetry(srcPath, destPath, info.Mode()); err != nil {
logErrorf("copy %s: %v", relPath, err)
} else {
logInfo("sync: %s", relPath)
}
}
func syncRemove(destPath, relPath string, manifest *Manifest, dryRun bool) {
delete(manifest.Files, relPath)
if dryRun {
logInfo("[dry-run] would remove: %s", relPath)
return
}
if err := os.Remove(destPath); err != nil && !os.IsNotExist(err) {
logErrorf("remove %s: %v", relPath, err)
} else {
logInfo("remove: %s", relPath)
}
}
type Watcher interface {
Add(path string) error
}
|
