logging: use level-based logger functions

Do not pass logger objects around anymore. Shuffle some messages to make
them consistent with the new logging API. Avoid using %v when a more
specific verb exists for the argument types.

The loggers are completely disabled (i.e. Sprintf is not even called)
by default. They are only enabled when redirecting stdout to a file.

Signed-off-by: Robin Jarry <robin@jarry.cc>
Acked-by: Moritz Poldrack <moritz@poldrack.dev>

1 files changed, 15 insertions, 14 deletions

diff --git a/worker/imap/cache.go b/worker/imap/cache.go
index ecbedd89..863b0714 100644
--- a/worker/imap/cache.go
+++ b/worker/imap/cache.go
@@ -9,6 +9,7 @@ import (
 	"path"
 	"time"
 
+	"git.sr.ht/~rjarry/aerc/logging"
 	"git.sr.ht/~rjarry/aerc/models"
 	"git.sr.ht/~rjarry/aerc/worker/types"
 	"github.com/emersion/go-message"
@@ -33,18 +34,18 @@ func (w *IMAPWorker) initCacheDb(acct string) {
 	cd, err := cacheDir()
 	if err != nil {
 		w.cache = nil
-		w.worker.Logger.Panicf("cache: unable to find cache directory: %v", err)
+		logging.Errorf("unable to find cache directory: %v", err)
 		return
 	}
 	p := path.Join(cd, acct)
 	db, err := leveldb.OpenFile(p, nil)
 	if err != nil {
 		w.cache = nil
-		w.worker.Logger.Printf("cache: error opening cache db: %v", err)
+		logging.Errorf("failed opening cache db: %v", err)
 		return
 	}
 	w.cache = db
-	w.worker.Logger.Printf("cache: cache db opened: %s", p)
+	logging.Infof("cache db opened: %s", p)
 	if w.config.cacheMaxAge.Hours() > 0 {
 		go w.cleanCache()
 	}
@@ -53,11 +54,11 @@ func (w *IMAPWorker) initCacheDb(acct string) {
 func (w *IMAPWorker) cacheHeader(mi *models.MessageInfo) {
 	uv := fmt.Sprintf("%d", w.selected.UidValidity)
 	uid := fmt.Sprintf("%d", mi.Uid)
-	w.worker.Logger.Printf("cache: caching header for message %s.%s", uv, uid)
+	logging.Debugf("caching header for message %s.%s", uv, uid)
 	hdr := bytes.NewBuffer(nil)
 	err := textproto.WriteHeader(hdr, mi.RFC822Headers.Header.Header)
 	if err != nil {
-		w.worker.Logger.Printf("cache: error writing header %s.%s: %v", uv, uid, err)
+		logging.Errorf("cannot write header %s.%s: %v", uv, uid, err)
 		return
 	}
 	h := &CachedHeader{
@@ -72,18 +73,18 @@ func (w *IMAPWorker) cacheHeader(mi *models.MessageInfo) {
 	enc := gob.NewEncoder(data)
 	err = enc.Encode(h)
 	if err != nil {
-		w.worker.Logger.Printf("cache: error encoding message %s.%s: %v", uv, uid, err)
+		logging.Errorf("cannot encode message %s.%s: %v", uv, uid, err)
 		return
 	}
 	err = w.cache.Put([]byte("header."+uv+"."+uid), data.Bytes(), nil)
 	if err != nil {
-		w.worker.Logger.Printf("cache: error writing header to database for message %s.%s: %v", uv, uid, err)
+		logging.Errorf("cannot write header for message %s.%s: %v", uv, uid, err)
 		return
 	}
 }
 
 func (w *IMAPWorker) getCachedHeaders(msg *types.FetchMessageHeaders) []uint32 {
-	w.worker.Logger.Println("Retrieving headers from cache")
+	logging.Debugf("Retrieving headers from cache: %v", msg.Uids)
 	var need, found []uint32
 	uv := fmt.Sprintf("%d", w.selected.UidValidity)
 	for _, uid := range msg.Uids {
@@ -97,14 +98,14 @@ func (w *IMAPWorker) getCachedHeaders(msg *types.FetchMessageHeaders) []uint32 {
 		dec := gob.NewDecoder(bytes.NewReader(data))
 		err = dec.Decode(ch)
 		if err != nil {
-			w.worker.Logger.Printf("cache: error decoding cached header %s.%s: %v", uv, u, err)
+			logging.Errorf("cannot decode cached header %s.%s: %v", uv, u, err)
 			need = append(need, uid)
 			continue
 		}
 		hr := bytes.NewReader(ch.Header)
 		textprotoHeader, err := textproto.ReadHeader(bufio.NewReader(hr))
 		if err != nil {
-			w.worker.Logger.Printf("cache: error reading cached header %s.%s: %v", uv, u, err)
+			logging.Errorf("cannot read cached header %s.%s: %v", uv, u, err)
 			need = append(need, uid)
 			continue
 		}
@@ -118,7 +119,7 @@ func (w *IMAPWorker) getCachedHeaders(msg *types.FetchMessageHeaders) []uint32 {
 			RFC822Headers: hdr,
 		}
 		found = append(found, uid)
-		w.worker.Logger.Printf("cache: located cached header %s.%s", uv, u)
+		logging.Debugf("located cached header %s.%s", uv, u)
 		w.worker.PostMessage(&types.MessageInfo{
 			Message: types.RespondTo(msg),
 			Info:    mi,
@@ -154,14 +155,14 @@ func (w *IMAPWorker) cleanCache() {
 		dec := gob.NewDecoder(bytes.NewReader(data))
 		err := dec.Decode(ch)
 		if err != nil {
-			w.worker.Logger.Printf("cache: error cleaning database %d: %v", w.selected.UidValidity, err)
+			logging.Errorf("cannot clean database %d: %v", w.selected.UidValidity, err)
 			continue
 		}
 		exp := ch.Created.Add(w.config.cacheMaxAge)
 		if exp.Before(time.Now()) {
 			err = w.cache.Delete(iter.Key(), nil)
 			if err != nil {
-				w.worker.Logger.Printf("cache: error cleaning database %d: %v", w.selected.UidValidity, err)
+				logging.Errorf("cannot clean database %d: %v", w.selected.UidValidity, err)
 				continue
 			}
 			removed = removed + 1
@@ -170,5 +171,5 @@ func (w *IMAPWorker) cleanCache() {
 	}
 	iter.Release()
 	elapsed := time.Since(start)
-	w.worker.Logger.Printf("cache: cleaned cache, removed %d of %d entries in %f seconds", removed, scanned, elapsed.Seconds())
+	logging.Infof("cleaned cache, removed %d of %d entries in %s", removed, scanned, elapsed)
 }