Add archive command

Adds an archive command that moves the current message into the folder
specified in the account config entry.

Supports three layouts at this point:

- flat: puts all messages next to each other
- year: creates a folder per year
- month: same as above, plus folders per month

This also adds a "-p" argument to "cp" and "mv" that works like
"--parents" on mkdir(1). We use this to auto-create the directories
for the archive layout.

3 files changed, 102 insertions, 6 deletions

diff --git a/commands/msg/archive.go b/commands/msg/archive.go
new file mode 100644
index 0000000..11752f7
--- /dev/null
+++ b/commands/msg/archive.go
@@ -0,0 +1,62 @@
+package msg
+
+import (
+	"errors"
+	"fmt"
+	"path"
+	"time"
+
+	"github.com/gdamore/tcell"
+
+	"git.sr.ht/~sircmpwn/aerc/widgets"
+	"git.sr.ht/~sircmpwn/aerc/worker/types"
+)
+
+const (
+	ARCHIVE_FLAT  = "flat"
+	ARCHIVE_YEAR  = "year"
+	ARCHIVE_MONTH = "month"
+)
+
+func init() {
+	register("archive", Archive)
+}
+
+func Archive(aerc *widgets.Aerc, args []string) error {
+	if len(args) != 2 {
+		return errors.New("Usage: archive <flat|year|month>")
+	}
+	acct := aerc.SelectedAccount()
+	if acct == nil {
+		return errors.New("No account selected")
+	}
+	msg := acct.Messages().Selected()
+	store := acct.Messages().Store()
+	archiveDir := acct.AccountConfig().Archive
+	acct.Messages().Next()
+
+	switch args[1] {
+	case ARCHIVE_MONTH:
+		archiveDir = path.Join(archiveDir,
+			fmt.Sprintf("%d", msg.Envelope.Date.Year()),
+			fmt.Sprintf("%02d", msg.Envelope.Date.Month()))
+	case ARCHIVE_YEAR:
+		archiveDir = path.Join(archiveDir, fmt.Sprintf("%v",
+			msg.Envelope.Date.Year()))
+	case ARCHIVE_FLAT:
+		// deliberately left blank
+	}
+
+	store.Move([]uint32{msg.Uid}, archiveDir, true, func(
+		msg types.WorkerMessage) {
+
+		switch msg := msg.(type) {
+		case *types.Done:
+			aerc.PushStatus("Messages archived.", 10*time.Second)
+		case *types.Error:
+			aerc.PushStatus(" "+msg.Error.Error(), 10*time.Second).
+				Color(tcell.ColorDefault, tcell.ColorRed)
+		}
+	})
+	return nil
+}
diff --git a/commands/msg/copy.go b/commands/msg/copy.go
index 57c93a3..0d9836b 100644
--- a/commands/msg/copy.go
+++ b/commands/msg/copy.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"time"
 
+	"git.sr.ht/~sircmpwn/getopt"
 	"github.com/gdamore/tcell"
 
 	"git.sr.ht/~sircmpwn/aerc/widgets"
@@ -16,9 +17,23 @@ func init() {
 }
 
 func Copy(aerc *widgets.Aerc, args []string) error {
-	if len(args) != 2 {
-		return errors.New("Usage: mv <folder>")
+	opts, optind, err := getopt.Getopts(args[1:], "p")
+	if err != nil {
+		return err
 	}
+	if optind != len(args)-2 {
+		return errors.New("Usage: cp [-p] <folder>")
+	}
+	var (
+		createParents bool
+	)
+	for _, opt := range opts {
+		switch opt.Option {
+		case 'p':
+			createParents = true
+		}
+	}
+
 	widget := aerc.SelectedTab().(widgets.ProvidesMessage)
 	acct := widget.SelectedAccount()
 	if acct == nil {
@@ -26,7 +41,9 @@ func Copy(aerc *widgets.Aerc, args []string) error {
 	}
 	msg := widget.SelectedMessage()
 	store := widget.Store()
-	store.Copy([]uint32{msg.Uid}, args[1], func(msg types.WorkerMessage) {
+	store.Copy([]uint32{msg.Uid}, args[optind+1], createParents, func(
+		msg types.WorkerMessage) {
+
 		switch msg := msg.(type) {
 		case *types.Done:
 			aerc.PushStatus("Messages copied.", 10*time.Second)
diff --git a/commands/msg/move.go b/commands/msg/move.go
index 1224efa..7742ffb 100644
--- a/commands/msg/move.go
+++ b/commands/msg/move.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"time"
 
+	"git.sr.ht/~sircmpwn/getopt"
 	"github.com/gdamore/tcell"
 
 	"git.sr.ht/~sircmpwn/aerc/widgets"
@@ -16,9 +17,23 @@ func init() {
 }
 
 func Move(aerc *widgets.Aerc, args []string) error {
-	if len(args) != 2 {
-		return errors.New("Usage: mv <folder>")
+	opts, optind, err := getopt.Getopts(args[1:], "p")
+	if err != nil {
+		return err
 	}
+	if optind != len(args)-2 {
+		return errors.New("Usage: mv [-p] <folder>")
+	}
+	var (
+		createParents bool
+	)
+	for _, opt := range opts {
+		switch opt.Option {
+		case 'p':
+			createParents = true
+		}
+	}
+
 	widget := aerc.SelectedTab().(widgets.ProvidesMessage)
 	acct := widget.SelectedAccount()
 	if acct == nil {
@@ -31,7 +46,9 @@ func Move(aerc *widgets.Aerc, args []string) error {
 		aerc.RemoveTab(widget)
 	}
 	acct.Messages().Next()
-	store.Move([]uint32{msg.Uid}, args[1], func(msg types.WorkerMessage) {
+	store.Move([]uint32{msg.Uid}, args[optind+1], createParents, func(
+		msg types.WorkerMessage) {
+
 		switch msg := msg.(type) {
 		case *types.Done:
 			aerc.PushStatus("Messages moved.", 10*time.Second)