templates: add full path of file(s) as Filename(s)

For the maildir and notmuch backends, add the full path of the message
as Filename to templates. In case of a notmuch message having multiple
files associated with it, it returns a random path. Also add Filenames
to templates, which is a list of all associated message paths. This is
relevant for the notmuch backend, where a single messages is shown, if
there are multiple copies of it.

Changelog-added: Add filepath to messages in templates as .Filename(s)
Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com>
Acked-by: Robin Jarry <robin@jarry.cc>

7 files changed, 41 insertions, 0 deletions

diff --git a/config/templates.go b/config/templates.go
index cab8efb2..d8c0c336 100644
--- a/config/templates.go
+++ b/config/templates.go
@@ -85,6 +85,8 @@ func (d *dummyData) SubjectBase() string             { return "[PATCH] hey" }
 func (d *dummyData) Attach(string) string            { return "" }
 func (d *dummyData) Number() int                     { return 0 }
 func (d *dummyData) Labels() []string                { return nil }
+func (d *dummyData) Filename() string                { return "" }
+func (d *dummyData) Filenames() []string             { return nil }
 func (d *dummyData) Flags() []string                 { return nil }
 func (d *dummyData) IsReplied() bool                 { return true }
 func (d *dummyData) HasAttachment() bool             { return true }
diff --git a/doc/aerc-templates.7.scd b/doc/aerc-templates.7.scd
index 026d54e0..06b34781 100644
--- a/doc/aerc-templates.7.scd
+++ b/doc/aerc-templates.7.scd
@@ -141,6 +141,16 @@ available always.
 	{{.Size | humanReadable}}
 	```
 
+*Filename*
+	The full path of the message file. Not available when composing,
+	replying nor forwarding. For the notmuch backend, it returns a random
+	filename if there are multiple files associated with the message.
+
+*Filenames*
+	A list of the full paths of the files associated with the message. For
+	maildir this is always a list with a single element.  Not available when
+	composing, replying nor forwarding.
+
 *Any header value*
 	Any header value of the email.
 
diff --git a/lib/state/templates.go b/lib/state/templates.go
index ef84f071..22cdbfa6 100644
--- a/lib/state/templates.go
+++ b/lib/state/templates.go
@@ -354,6 +354,23 @@ func (d *templateData) Labels() []string {
 	return d.info.Labels
 }
 
+func (d *templateData) Filename() string {
+	if d.info == nil {
+		return ""
+	}
+	if (d.info.Filenames != nil) && len(d.info.Filenames) > 0 {
+		return d.info.Filenames[0]
+	}
+	return ""
+}
+
+func (d *templateData) Filenames() []string {
+	if d.info == nil {
+		return nil
+	}
+	return d.info.Filenames
+}
+
 func (d *templateData) Flags() []string {
 	var flags []string
 	if d.info == nil {
diff --git a/models/models.go b/models/models.go
index 42e60b8b..55dd2347 100644
--- a/models/models.go
+++ b/models/models.go
@@ -97,6 +97,7 @@ type MessageInfo struct {
 	Envelope      *Envelope
 	Flags         Flags
 	Labels        []string
+	Filenames     []string
 	InternalDate  time.Time
 	RFC822Headers *mail.Header
 	Refs          []string
diff --git a/models/templates.go b/models/templates.go
index d6b90e88..77f6b787 100644
--- a/models/templates.go
+++ b/models/templates.go
@@ -28,6 +28,8 @@ type TemplateData interface {
 	SubjectBase() string
 	Number() int
 	Labels() []string
+	Filename() string
+	Filenames() []string
 	Flags() []string
 	IsReplied() bool
 	HasAttachment() bool
diff --git a/worker/maildir/worker.go b/worker/maildir/worker.go
index f843d002..5ca648c4 100644
--- a/worker/maildir/worker.go
+++ b/worker/maildir/worker.go
@@ -883,6 +883,11 @@ func (w *Worker) msgInfoFromUid(uid uint32) (*models.MessageInfo, error) {
 	if err != nil {
 		return nil, err
 	}
+	name, err := m.dir.Filename(m.key)
+	if err != nil {
+		return nil, err
+	}
+	info.Filenames = []string{name}
 	if w.c.IsRecent(uid) {
 		info.Flags |= models.RecentFlag
 	}
diff --git a/worker/notmuch/message.go b/worker/notmuch/message.go
index 19011679..2beda4d6 100644
--- a/worker/notmuch/message.go
+++ b/worker/notmuch/message.go
@@ -48,6 +48,10 @@ func (m *Message) MessageInfo() (*models.MessageInfo, error) {
 			log.Errorf("failed to obtain file size: %v", err)
 		}
 	}
+	filenames, err := m.db.MsgFilenames(m.key)
+	if err == nil {
+		info.Filenames = filenames
+	}
 	return info, nil
 }