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Signed-off-by: Brian McGee <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package format | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "git.numtide.com/numtide/treefmt/cache" | ||
| "github.com/charmbracelet/log" | ||
| "os" | ||
| ) | ||
|
|
||
| func CheckFormatters(c *cache.Cache, formatters map[string]*Formatter) error { | ||
| return c.Update(func(tx *cache.Tx) error { | ||
|
|
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| clearPaths := false | ||
|
|
||
| pathsBucket, err := tx.Paths() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to get paths bucket from cache: %w", err) | ||
| } | ||
|
|
||
| formattersBucket, err := tx.Formatters() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to get formatters bucket from cache: %w", err) | ||
| } | ||
|
|
||
| // check for any newly configured or modified formatters | ||
| for name, formatter := range formatters { | ||
|
|
||
| stat, err := os.Lstat(formatter.Executable()) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to stat formatter executable %v: %w", formatter.Executable(), err) | ||
| } | ||
|
|
||
| entry, err := formattersBucket.Get(name) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to retrieve cache entry for formatter %v: %w", name, err) | ||
| } | ||
|
|
||
| isNew := entry == nil | ||
| hasChanged := entry != nil && !(entry.Size == stat.Size() && entry.Modified == stat.ModTime()) | ||
|
|
||
| if isNew { | ||
| log.Debugf("formatter '%s' is new", name) | ||
| } else if hasChanged { | ||
| log.Debug("formatter '%s' has changed", | ||
| name, | ||
| "size", stat.Size(), | ||
| "modTime", stat.ModTime(), | ||
| "cachedSize", entry.Size, | ||
| "cachedModTime", entry.Modified, | ||
| ) | ||
| } | ||
|
|
||
| // update overall flag | ||
| clearPaths = clearPaths || isNew || hasChanged | ||
|
|
||
| // record formatters info | ||
| entry = &cache.Entry{ | ||
| Size: stat.Size(), | ||
| Modified: stat.ModTime(), | ||
| } | ||
|
|
||
| if err = formattersBucket.Put(name, entry); err != nil { | ||
| return fmt.Errorf("failed to write cache entry for formatter %v: %w", name, err) | ||
| } | ||
| } | ||
|
|
||
| // check for any removed formatters | ||
| if err = formattersBucket.ForEach(func(key string, _ *cache.Entry) error { | ||
| _, ok := formatters[key] | ||
| if !ok { | ||
| // remove the formatter entry from the cache | ||
| if err = formattersBucket.Delete(key); err != nil { | ||
| return fmt.Errorf("failed to remove cache entry for formatter %v: %w", key, err) | ||
| } | ||
| // indicate a clean is required | ||
| clearPaths = true | ||
| } | ||
| return nil | ||
| }); err != nil { | ||
| return fmt.Errorf("failed to check cache for removed formatters: %w", err) | ||
| } | ||
|
|
||
| if clearPaths { | ||
| // remove all path entries | ||
| if err := pathsBucket.DeleteAll(); err != nil { | ||
| return fmt.Errorf("failed to remove all path entries from cache: %w", err) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| }) | ||
|
|
||
| } |
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