patch/term: add term sub-cmd

Implement the :patch term command. This will open a shell in the
project's root directory that was defined during the :project init
setup.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>

2 files changed, 50 insertions, 5 deletions

diff --git a/commands/patch/term.go b/commands/patch/term.go
new file mode 100644
index 00000000..f2c50b15
--- /dev/null
+++ b/commands/patch/term.go
@@ -0,0 +1,26 @@
+package patch
+
+import (
+	"git.sr.ht/~rjarry/aerc/commands"
+	"git.sr.ht/~rjarry/aerc/lib/pama"
+)
+
+type Term struct {
+	Cmd []string `opt:"..." required:"false"`
+}
+
+func init() {
+	register(Term{})
+}
+
+func (Term) Aliases() []string {
+	return []string{"term"}
+}
+
+func (t Term) Execute(_ []string) error {
+	p, err := pama.New().CurrentProject()
+	if err != nil {
+		return err
+	}
+	return commands.TermCoreDirectory(t.Cmd, p.Root)
+}
diff --git a/commands/term.go b/commands/term.go
index 3f8f9875..d115cd25 100644
--- a/commands/term.go
+++ b/commands/term.go
@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"os"
 	"os/exec"
 
 	"github.com/riywo/loginshell"
@@ -22,21 +23,39 @@ func (Term) Aliases() []string {
 }
 
 func (t Term) Execute(args []string) error {
-	if len(t.Cmd) == 0 {
+	return TermCore(t.Cmd)
+}
+
+// The help command is an alias for `term man` thus Term requires a simple func
+func TermCore(args []string) error {
+	return TermCoreDirectory(args, "")
+}
+
+func TermCoreDirectory(args []string, dir string) error {
+	if len(args) == 0 {
 		shell, err := loginshell.Shell()
 		if err != nil {
 			return err
 		}
-		t.Cmd = []string{shell}
+		args = []string{shell}
 	}
-	term, err := app.NewTerminal(exec.Command(t.Cmd[0], t.Cmd[1:]...))
+
+	if dir != "" {
+		if _, err := os.Stat(dir); os.IsNotExist(err) {
+			return err
+		}
+	}
+
+	cmd := exec.Command(args[0], args[1:]...)
+	cmd.Dir = dir
+	term, err := app.NewTerminal(cmd)
 	if err != nil {
 		return err
 	}
-	tab := app.NewTab(term, t.Cmd[0])
+	tab := app.NewTab(term, args[0])
 	term.OnTitle = func(title string) {
 		if title == "" {
-			title = t.Cmd[0]
+			title = args[0]
 		}
 		if tab.Name != title {
 			tab.Name = title