1 files changed, 82 insertions, 0 deletions
diff --git a/save.pl~ b/save.pl~
new file mode 100644
index 0000000..1a720c4
--- /dev/null
+++ b/save.pl~
@@ -0,0 +1,82 @@
+:- consult(pce_file_search_path).
+:- consult(library(pce)).
+:- consult(library(process)).
+
+main :-
+	pce_main_loop(main).
+
+main(_Argv) :-
+	init.
+
+init :-
+	shell("git add .", Status),
+	added(Status).
+
+added(1) :-
+	send(@display, report, error,
+	     'Files could not be added to index.
+Ensure Git is in PATH.').
+
+added(0) :-
+	%send(@pce, load_defaults, 'Defaults'),
+	new(D, dialog('Save')),
+
+	% File browser.
+	new(C, chain),
+	status(C),
+	send(new(B, browser), right, D),
+	send(B, members(C)),
+
+	% Input fields.
+	send(D, append, text('Commit message (optional):',
+			     left,
+			     bold)),
+	send(D, append, new(E, editor)),
+	send(D, append, button(save,
+			       and(message(@prolog, save, E, C),
+				   message(D, destroy)))),
+	send(D, append, button(cancel,
+			       and(message(@prolog, reset),
+				   message(D, destroy)))),
+	send(D, open).
+
+reset :-
+	shell("git reset").
+
+status(C) :-
+	setup_call_cleanup(
+	    process_create(path(git), ['status', '--porcelain'],
+			   [stdout(pipe(Out))]),
+	    read_to_chain(Out, C),
+	    close(Out)).
+
+read_to_chain(S, C) :-
+	read_line_to_codes(S, Cs),
+	(   Cs == end_of_file
+	->  true
+	;   atom_codes(A, Cs),
+	    send(C, append, A),
+	    read_to_chain(S, C)
+	).
+
+save(Editor, Chain) :-
+	get(Editor?text_buffer, contents, S),
+	send(S, strip),
+	get(S, value, Msg),
+	(   Msg == ''
+	->  chain_atom(Chain, A),
+	    commit(A)
+	;   commit(Msg)
+	).
+
+chain_atom(C, A) :-
+	chain_atom_x(C, '', A).
+
+chain_atom_x(C, A0, A) :-
+	(   get(C, delete_head, A1),
+	    atom_concat(A0, A1, A2),
+	    atom_concat(A2, '
+', A3),
+	    chain_atom_x(C, A3, A)
+	;   A = A0
+	).