extract search criteria parsing into the backends

Makefile

@@ -28,6 +28,7 @@ aerc.conf: config/aerc.conf.in
 
 DOCS := \
 	aerc.1 \
+	aerc-search.1 \
 	aerc-config.5 \
 	aerc-imap.5 \
 	aerc-maildir.5 \
@@ -60,6 +61,7 @@ install: all
 		$(SHAREDIR) $(SHAREDIR)/filters
 	install -m755 aerc $(BINDIR)/aerc
 	install -m644 aerc.1 $(MANDIR)/man1/aerc.1
+	install -m644 aerc-search.1 $(MANDIR)/man1/aerc-search.1
 	install -m644 aerc-config.5 $(MANDIR)/man5/aerc-config.5
 	install -m644 aerc-imap.5 $(MANDIR)/man5/aerc-imap.5
 	install -m644 aerc-maildir.5 $(MANDIR)/man5/aerc-maildir.5

commands/account/search.go

@@ -3,9 +3,6 @@ package account
 import (
 	"errors"
 
-	"git.sr.ht/~sircmpwn/getopt"
-	"github.com/emersion/go-imap"
-
 	"git.sr.ht/~sircmpwn/aerc/widgets"
 )
 
@@ -24,28 +21,6 @@ func (_ SearchFilter) Complete(aerc *widgets.Aerc, args []string) []string {
 }
 
 func (_ SearchFilter) Execute(aerc *widgets.Aerc, args []string) error {
-	var (
-		criteria *imap.SearchCriteria = imap.NewSearchCriteria()
-	)
-
-	opts, optind, err := getopt.Getopts(args, "ruH:")
-	if err != nil {
-		return err
-	}
-	for _, opt := range opts {
-		switch opt.Option {
-		case 'r':
-			criteria.WithFlags = append(criteria.WithFlags, imap.SeenFlag)
-		case 'u':
-			criteria.WithoutFlags = append(criteria.WithoutFlags, imap.SeenFlag)
-		case 'H':
-			// TODO
-		}
-	}
-	for _, arg := range args[optind:] {
-		criteria.Header.Add("Subject", arg)
-	}
-
 	acct := aerc.SelectedAccount()
 	if acct == nil {
 		return errors.New("No account selected")
@@ -73,6 +48,6 @@ func (_ SearchFilter) Execute(aerc *widgets.Aerc, args []string) error {
 			acct.Messages().Scroll()
 		}
 	}
-	store.Search(criteria, cb)
+	store.Search(args, cb)
 	return nil
 }

doc/aerc-search.1.scd

@@ -0,0 +1,11 @@
+aerc-search(1)
+
+# IMAP
+
+*search* [-ru] <terms...>
+	Searches the current folder for <terms>. Each separate term is searched
+	case-insensitively among subject lines.
+
+	*-r*: Search for read messages
+
+	*-u*: Search for unread messages

doc/aerc.1.scd

@@ -175,13 +175,10 @@ message list, the message in the message viewer, etc).
 *next-result*, *prev-result*
 	Selects the next or previous search result.
 
-*search* [-ru] <terms...>
-	Searches the current folder for <terms>. Each separate term is searched
-	case-insensitively among subject lines.
-
-	*-r*: Search for read messages
-
-	*-u*: Search for unread messages
+*search*
+	Searches the current folder.
+	The search syntax is dependant on the underlying backend.
+	Refer to *aerc-search*(1) for details
 
 *select* <n>
 	Selects the nth message in the message list (and scrolls it into view if

lib/msgstore.go

@@ -4,8 +4,6 @@ import (
 	"io"
 	"time"
 
-	"github.com/emersion/go-imap"
-
 	"git.sr.ht/~sircmpwn/aerc/models"
 	"git.sr.ht/~sircmpwn/aerc/worker/types"
 )
@@ -368,9 +366,9 @@ func (store *MessageStore) Prev() {
 	store.NextPrev(-1)
 }
 
-func (store *MessageStore) Search(c *imap.SearchCriteria, cb func([]uint32)) {
+func (store *MessageStore) Search(args []string, cb func([]uint32)) {
 	store.worker.PostAction(&types.SearchDirectory{
-		Criteria: c,
+		Argv: args,
 	}, func(msg types.WorkerMessage) {
 		switch msg := msg.(type) {
 		case *types.SearchResults:

worker/imap/list.go

@@ -52,17 +52,29 @@ func canOpen(mbox *imap.MailboxInfo) bool {
 }
 
 func (imapw *IMAPWorker) handleSearchDirectory(msg *types.SearchDirectory) {
-	imapw.worker.Logger.Println("Executing search")
-
-	if uids, err := imapw.client.UidSearch(msg.Criteria); err != nil {
+	emitError := func(err error) {
 		imapw.worker.PostMessage(&types.Error{
 			Message: types.RespondTo(msg),
 			Error:   err,
 		}, nil)
-	} else {
+	}
+
+	imapw.worker.Logger.Println("Executing search")
+	criteria, err := parseSearch(msg.Argv)
+	if err != nil {
+		emitError(err)
+		return
+	}
+
+	uids, err := imapw.client.UidSearch(criteria)
+	if err != nil {
+		emitError(err)
+		return
+	}
+
 	imapw.worker.PostMessage(&types.SearchResults{
 		Message: types.RespondTo(msg),
 		Uids:    uids,
 	}, nil)
-	}
+
 }

worker/imap/search.go

@@ -0,0 +1,29 @@
+package imap
+
+import (
+	"git.sr.ht/~sircmpwn/getopt"
+	"github.com/emersion/go-imap"
+)
+
+func parseSearch(args []string) (*imap.SearchCriteria, error) {
+	criteria := imap.NewSearchCriteria()
+
+	opts, optind, err := getopt.Getopts(args, "ruH:")
+	if err != nil {
+		return nil, err
+	}
+	for _, opt := range opts {
+		switch opt.Option {
+		case 'r':
+			criteria.WithFlags = append(criteria.WithFlags, imap.SeenFlag)
+		case 'u':
+			criteria.WithoutFlags = append(criteria.WithoutFlags, imap.SeenFlag)
+		case 'H':
+			// TODO
+		}
+	}
+	for _, arg := range args[optind:] {
+		criteria.Header.Add("Subject", arg)
+	}
+	return criteria, nil
+}

worker/types/messages.go

@@ -4,8 +4,6 @@ import (
 	"io"
 	"time"
 
-	"github.com/emersion/go-imap"
-
 	"git.sr.ht/~sircmpwn/aerc/config"
 	"git.sr.ht/~sircmpwn/aerc/models"
 )
@@ -84,7 +82,7 @@ type FetchDirectoryContents struct {
 
 type SearchDirectory struct {
 	Message
-	Criteria *imap.SearchCriteria
+	Argv []string
 }
 
 type CreateDirectory struct {