difftool: add '--no-gui' option

This commit teaches difftool to handle the '--no-gui' option. This option negates the existing '--gui' option. The last setting given on the command line wins. This allows a user to configure "[alias] mdt = difftool --gui", but still have the ability to override the setting without error: $ git mdt --no-gui Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Tim Henigan committed Mar 22, 2012 at 15:52 UTC 850896042a42c1c16912a3981ca844e2cbcd14d4
2 files changed +17 -3
git-difftool.perl
+4 -3
@@ -22,7 +22,8 @@ sub usage
22 {
23 print << 'USAGE';
24 usage: git difftool [-t|--tool=<tool>]
25 - [-x|--extcmd=<cmd>] [-g|--gui]
25 + [-x|--extcmd=<cmd>]
26 + [-g|--gui] [--no-gui]
27 [--prompt] [-y|--no-prompt]
28 ['git diff' options]
29 USAGE
@@ -49,7 +50,7 @@ sub exe
50 # parse command-line options. all unrecognized options and arguments
51 # are passed through to the 'git diff' command.
52 my ($difftool_cmd, $extcmd, $gui, $help, $prompt);
52 -GetOptions('g|gui' => \$gui,
53 +GetOptions('g|gui!' => \$gui,
54 'h' => \$help,
55 'prompt!' => \$prompt,
56 'y' => sub { $prompt = 0; },
@@ -75,7 +76,7 @@ if (defined($extcmd)) {
76 usage();
77 }
78 }
78 -if (defined($gui)) {
79 +if ($gui) {
80 my $guitool = "";
81 $guitool = Git::config('diff.guitool');
82 if (length($guitool) > 0) {
t/t7800-difftool.sh
+13
@@ -94,6 +94,19 @@ test_expect_success PERL 'difftool honors --gui' '
94 restore_test_defaults
95 '
96
97 +test_expect_success PERL 'difftool --gui last setting wins' '
98 + git config diff.guitool bogus-tool &&
99 + git difftool --no-prompt --gui --no-gui &&
100 +
101 + git config merge.tool bogus-tool &&
102 + git config diff.tool bogus-tool &&
103 + git config diff.guitool test-tool &&
104 + diff=$(git difftool --no-prompt --no-gui --gui branch) &&
105 + test "$diff" = "branch" &&
106 +
107 + restore_test_defaults
108 +'
109 +
110 test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
111 git config diff.tool test-tool &&
112