# command line options
my $patch_mode;
+my $patch_mode_revision;
+
+sub apply_patch;
+sub apply_patch_for_checkout_commit;
+sub apply_patch_for_stash;
+
+my %patch_modes = (
+ 'stage' => {
+ DIFF => 'diff-files -p',
+ APPLY => sub { apply_patch 'apply --cached', @_; },
+ APPLY_CHECK => 'apply --cached',
+ VERB => 'Stage',
+ TARGET => '',
+ PARTICIPLE => 'staging',
+ FILTER => 'file-only',
+ },
+ 'stash' => {
+ DIFF => 'diff-index -p HEAD',
+ APPLY => sub { apply_patch 'apply --cached', @_; },
+ APPLY_CHECK => 'apply --cached',
+ VERB => 'Stash',
+ TARGET => '',
+ PARTICIPLE => 'stashing',
+ FILTER => undef,
+ },
+ 'reset_head' => {
+ DIFF => 'diff-index -p --cached',
+ APPLY => sub { apply_patch 'apply -R --cached', @_; },
+ APPLY_CHECK => 'apply -R --cached',
+ VERB => 'Unstage',
+ TARGET => '',
+ PARTICIPLE => 'unstaging',
+ FILTER => 'index-only',
+ },
+ 'reset_nothead' => {
+ DIFF => 'diff-index -R -p --cached',
+ APPLY => sub { apply_patch 'apply --cached', @_; },
+ APPLY_CHECK => 'apply --cached',
+ VERB => 'Apply',
+ TARGET => ' to index',
+ PARTICIPLE => 'applying',
+ FILTER => 'index-only',
+ },
+ 'checkout_index' => {
+ DIFF => 'diff-files -p',
+ APPLY => sub { apply_patch 'apply -R', @_; },
+ APPLY_CHECK => 'apply -R',
+ VERB => 'Discard',
+ TARGET => ' from worktree',
+ PARTICIPLE => 'discarding',
+ FILTER => 'file-only',
+ },
+ 'checkout_head' => {
+ DIFF => 'diff-index -p',
+ APPLY => sub { apply_patch_for_checkout_commit '-R', @_ },
+ APPLY_CHECK => 'apply -R',
+ VERB => 'Discard',
+ TARGET => ' from index and worktree',
+ PARTICIPLE => 'discarding',
+ FILTER => undef,
+ },
+ 'checkout_nothead' => {
+ DIFF => 'diff-index -R -p',
+ APPLY => sub { apply_patch_for_checkout_commit '', @_ },
+ APPLY_CHECK => 'apply',
+ VERB => 'Apply',
+ TARGET => ' to index and worktree',
+ PARTICIPLE => 'applying',
+ FILTER => undef,
+ },
+);
+
+my %patch_mode_flavour = %{$patch_modes{stage}};
sub run_cmd_pipe {
if ($^O eq 'MSWin32' || $^O eq 'msys') {
@tracked = map {
chomp $_;
unquote_path($_);
- } run_cmd_pipe(qw(git ls-files --exclude-standard --), @ARGV);
+ } run_cmd_pipe(qw(git ls-files --), @ARGV);
return if (!@tracked);
}
- my $reference = is_initial_commit() ? get_empty_tree() : 'HEAD';
+ my $reference;
+ if (defined $patch_mode_revision and $patch_mode_revision ne 'HEAD') {
+ $reference = $patch_mode_revision;
+ } elsif (is_initial_commit()) {
+ $reference = get_empty_tree();
+ } else {
+ $reference = 'HEAD';
+ }
for (run_cmd_pipe(qw(git diff-index --cached
--numstat --summary), $reference,
'--', @tracked)) {
print "\n";
}
+sub run_git_apply {
+ my $cmd = shift;
+ my $fh;
+ open $fh, '| git ' . $cmd;
+ print $fh @_;
+ return close $fh;
+}
+
sub parse_diff {
my ($path) = @_;
- my @diff = run_cmd_pipe(qw(git diff-files -p --), $path);
+ my @diff_cmd = split(" ", $patch_mode_flavour{DIFF});
+ if (defined $patch_mode_revision) {
+ push @diff_cmd, $patch_mode_revision;
+ }
+ my @diff = run_cmd_pipe("git", @diff_cmd, "--", $path);
my @colored = ();
if ($diff_use_color) {
- @colored = run_cmd_pipe(qw(git diff-files -p --color --), $path);
+ @colored = run_cmd_pipe("git", @diff_cmd, qw(--color --), $path);
}
my (@hunk) = { TEXT => [], DISPLAY => [], TYPE => 'header' };
my $head = { TEXT => [], DISPLAY => [], TYPE => 'header' };
my $mode = { TEXT => [], DISPLAY => [], TYPE => 'mode' };
+ my $deletion = { TEXT => [], DISPLAY => [], TYPE => 'deletion' };
for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
- my $dest = $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ?
- $mode : $head;
+ my $dest =
+ $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ? $mode :
+ $src->{TEXT}->[$i] =~ /^deleted file/ ? $deletion :
+ $head;
push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
}
- return ($head, $mode);
+ return ($head, $mode, $deletion);
}
sub hunk_splittable {
or die "failed to open hunk edit file for writing: " . $!;
print $fh "# Manual hunk edit mode -- see bottom for a quick guide\n";
print $fh @$oldtext;
+ my $participle = $patch_mode_flavour{PARTICIPLE};
print $fh <<EOF;
# ---
# To remove '-' lines, make them ' ' lines (context).
# Lines starting with # will be removed.
#
# If the patch applies cleanly, the edited hunk will immediately be
-# marked for staging. If it does not apply cleanly, you will be given
+# marked for $participle. If it does not apply cleanly, you will be given
# an opportunity to edit again. If all lines of the hunk are removed,
# then the edit is aborted and the hunk is left unchanged.
EOF
sub diff_applies {
my $fh;
- open $fh, '| git apply --recount --cached --check';
- for my $h (@_) {
- print $fh @{$h->{TEXT}};
- }
- return close $fh;
+ return run_git_apply($patch_mode_flavour{APPLY_CHECK} . ' --recount --check',
+ map { @{$_->{TEXT}} } @_);
}
sub _restore_terminal_and_die {
}
sub help_patch_cmd {
- print colored $help_color, <<\EOF ;
-y - stage this hunk
-n - do not stage this hunk
-q - quit, do not stage this hunk nor any of the remaining ones
-a - stage this and all the remaining hunks in the file
-d - do not stage this hunk nor any of the remaining hunks in the file
+ my $verb = lc $patch_mode_flavour{VERB};
+ my $target = $patch_mode_flavour{TARGET};
+ print colored $help_color, <<EOF ;
+y - $verb this hunk$target
+n - do not $verb this hunk$target
+q - quit, do not $verb this hunk nor any of the remaining ones
+a - $verb this and all the remaining hunks in the file
+d - do not $verb this hunk nor any of the remaining hunks in the file
g - select a hunk to go to
/ - search for a hunk matching the given regex
j - leave this hunk undecided, see next undecided hunk
EOF
}
+sub apply_patch {
+ my $cmd = shift;
+ my $ret = run_git_apply $cmd . ' --recount', @_;
+ if (!$ret) {
+ print STDERR @_;
+ }
+ return $ret;
+}
+
+sub apply_patch_for_checkout_commit {
+ my $reverse = shift;
+ my $applies_index = run_git_apply 'apply '.$reverse.' --cached --recount --check', @_;
+ my $applies_worktree = run_git_apply 'apply '.$reverse.' --recount --check', @_;
+
+ if ($applies_worktree && $applies_index) {
+ run_git_apply 'apply '.$reverse.' --cached --recount', @_;
+ run_git_apply 'apply '.$reverse.' --recount', @_;
+ return 1;
+ } elsif (!$applies_index) {
+ print colored $error_color, "The selected hunks do not apply to the index!\n";
+ if (prompt_yesno "Apply them to the worktree anyway? ") {
+ return run_git_apply 'apply '.$reverse.' --recount', @_;
+ } else {
+ print colored $error_color, "Nothing was applied.\n";
+ return 0;
+ }
+ } else {
+ print STDERR @_;
+ return 0;
+ }
+}
+
sub patch_update_cmd {
- my @all_mods = list_modified('file-only');
+ my @all_mods = list_modified($patch_mode_flavour{FILTER});
my @mods = grep { !($_->{BINARY}) } @all_mods;
my @them;
my ($ix, $num);
my $path = shift;
my ($head, @hunk) = parse_diff($path);
- ($head, my $mode) = parse_diff_header($head);
+ ($head, my $mode, my $deletion) = parse_diff_header($head);
for (@{$head->{DISPLAY}}) {
print;
}
if (@{$mode->{TEXT}}) {
unshift @hunk, $mode;
}
+ if (@{$deletion->{TEXT}} && !@hunk) {
+ @hunk = ($deletion);
+ }
$num = scalar @hunk;
$ix = 0;
for (@{$hunk[$ix]{DISPLAY}}) {
print;
}
- print colored $prompt_color, 'Stage ',
- ($hunk[$ix]{TYPE} eq 'mode' ? 'mode change' : 'this hunk'),
+ print colored $prompt_color, $patch_mode_flavour{VERB},
+ ($hunk[$ix]{TYPE} eq 'mode' ? ' mode change' :
+ $hunk[$ix]{TYPE} eq 'deletion' ? ' deletion' :
+ ' this hunk'),
+ $patch_mode_flavour{TARGET},
" [y,n,q,a,d,/$other,?]? ";
my $line = prompt_single_character;
if ($line) {
if (@result) {
my $fh;
-
- open $fh, '| git apply --cached --recount';
- for (@{$head->{TEXT}}, @result) {
- print $fh $_;
- }
- if (!close $fh) {
- for (@{$head->{TEXT}}, @result) {
- print STDERR $_;
- }
- }
+ my @patch = (@{$head->{TEXT}}, @result);
+ my $apply_routine = $patch_mode_flavour{APPLY};
+ &$apply_routine(@patch);
refresh();
}
sub process_args {
return unless @ARGV;
my $arg = shift @ARGV;
- if ($arg eq "--patch") {
- $patch_mode = 1;
- $arg = shift @ARGV or die "missing --";
+ if ($arg =~ /--patch(?:=(.*))?/) {
+ if (defined $1) {
+ if ($1 eq 'reset') {
+ $patch_mode = 'reset_head';
+ $patch_mode_revision = 'HEAD';
+ $arg = shift @ARGV or die "missing --";
+ if ($arg ne '--') {
+ $patch_mode_revision = $arg;
+ $patch_mode = ($arg eq 'HEAD' ?
+ 'reset_head' : 'reset_nothead');
+ $arg = shift @ARGV or die "missing --";
+ }
+ } elsif ($1 eq 'checkout') {
+ $arg = shift @ARGV or die "missing --";
+ if ($arg eq '--') {
+ $patch_mode = 'checkout_index';
+ } else {
+ $patch_mode_revision = $arg;
+ $patch_mode = ($arg eq 'HEAD' ?
+ 'checkout_head' : 'checkout_nothead');
+ $arg = shift @ARGV or die "missing --";
+ }
+ } elsif ($1 eq 'stage' or $1 eq 'stash') {
+ $patch_mode = $1;
+ $arg = shift @ARGV or die "missing --";
+ } else {
+ die "unknown --patch mode: $1";
+ }
+ } else {
+ $patch_mode = 'stage';
+ $arg = shift @ARGV or die "missing --";
+ }
die "invalid argument $arg, expecting --"
unless $arg eq "--";
+ %patch_mode_flavour = %{$patch_modes{$patch_mode}};
}
elsif ($arg ne "--") {
die "invalid argument $arg, expecting --";