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git/git-add--interactive.perl
Thomas Rast 9fe7a643fc add -p: warn if only binary changes present
Current 'git add -p' will say "No changes." if there are no changes to
text files, which can be confusing if there _are_ changes to binary
files.  Add some code to distinguish the two cases, and give a
different message in the latter one.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 16:20:24 -07:00

1111 lines
24 KiB
Perl
Executable file

#!/usr/bin/perl -w
use strict;
use Git;
my $repo = Git->repository();
my $menu_use_color = $repo->get_colorbool('color.interactive');
my ($prompt_color, $header_color, $help_color) =
$menu_use_color ? (
$repo->get_color('color.interactive.prompt', 'bold blue'),
$repo->get_color('color.interactive.header', 'bold'),
$repo->get_color('color.interactive.help', 'red bold'),
) : ();
my $diff_use_color = $repo->get_colorbool('color.diff');
my ($fraginfo_color) =
$diff_use_color ? (
$repo->get_color('color.diff.frag', 'cyan'),
) : ();
my ($diff_plain_color) =
$diff_use_color ? (
$repo->get_color('color.diff.plain', ''),
) : ();
my ($diff_old_color) =
$diff_use_color ? (
$repo->get_color('color.diff.old', 'red'),
) : ();
my ($diff_new_color) =
$diff_use_color ? (
$repo->get_color('color.diff.new', 'green'),
) : ();
my $normal_color = $repo->get_color("", "reset");
sub colored {
my $color = shift;
my $string = join("", @_);
if (defined $color) {
# Put a color code at the beginning of each line, a reset at the end
# color after newlines that are not at the end of the string
$string =~ s/(\n+)(.)/$1$color$2/g;
# reset before newlines
$string =~ s/(\n+)/$normal_color$1/g;
# codes at beginning and end (if necessary):
$string =~ s/^/$color/;
$string =~ s/$/$normal_color/ unless $string =~ /\n$/;
}
return $string;
}
# command line options
my $patch_mode;
sub run_cmd_pipe {
if ($^O eq 'MSWin32' || $^O eq 'msys') {
my @invalid = grep {m/[":*]/} @_;
die "$^O does not support: @invalid\n" if @invalid;
my @args = map { m/ /o ? "\"$_\"": $_ } @_;
return qx{@args};
} else {
my $fh = undef;
open($fh, '-|', @_) or die;
return <$fh>;
}
}
my ($GIT_DIR) = run_cmd_pipe(qw(git rev-parse --git-dir));
if (!defined $GIT_DIR) {
exit(1); # rev-parse would have already said "not a git repo"
}
chomp($GIT_DIR);
sub refresh {
my $fh;
open $fh, 'git update-index --refresh |'
or die;
while (<$fh>) {
;# ignore 'needs update'
}
close $fh;
}
sub list_untracked {
map {
chomp $_;
$_;
}
run_cmd_pipe(qw(git ls-files --others --exclude-standard --), @ARGV);
}
my $status_fmt = '%12s %12s %s';
my $status_head = sprintf($status_fmt, 'staged', 'unstaged', 'path');
{
my $initial;
sub is_initial_commit {
$initial = system('git rev-parse HEAD -- >/dev/null 2>&1') != 0
unless defined $initial;
return $initial;
}
}
sub get_empty_tree {
return '4b825dc642cb6eb9a060e54bf8d69288fbee4904';
}
# Returns list of hashes, contents of each of which are:
# VALUE: pathname
# BINARY: is a binary path
# INDEX: is index different from HEAD?
# FILE: is file different from index?
# INDEX_ADDDEL: is it add/delete between HEAD and index?
# FILE_ADDDEL: is it add/delete between index and file?
sub list_modified {
my ($only) = @_;
my (%data, @return);
my ($add, $del, $adddel, $file);
my @tracked = ();
if (@ARGV) {
@tracked = map {
chomp $_; $_;
} run_cmd_pipe(qw(git ls-files --exclude-standard --), @ARGV);
return if (!@tracked);
}
my $reference = is_initial_commit() ? get_empty_tree() : 'HEAD';
for (run_cmd_pipe(qw(git diff-index --cached
--numstat --summary), $reference,
'--', @tracked)) {
if (($add, $del, $file) =
/^([-\d]+) ([-\d]+) (.*)/) {
my ($change, $bin);
if ($add eq '-' && $del eq '-') {
$change = 'binary';
$bin = 1;
}
else {
$change = "+$add/-$del";
}
$data{$file} = {
INDEX => $change,
BINARY => $bin,
FILE => 'nothing',
}
}
elsif (($adddel, $file) =
/^ (create|delete) mode [0-7]+ (.*)$/) {
$data{$file}{INDEX_ADDDEL} = $adddel;
}
}
for (run_cmd_pipe(qw(git diff-files --numstat --summary --), @tracked)) {
if (($add, $del, $file) =
/^([-\d]+) ([-\d]+) (.*)/) {
if (!exists $data{$file}) {
$data{$file} = +{
INDEX => 'unchanged',
BINARY => 0,
};
}
my ($change, $bin);
if ($add eq '-' && $del eq '-') {
$change = 'binary';
$bin = 1;
}
else {
$change = "+$add/-$del";
}
$data{$file}{FILE} = $change;
if ($bin) {
$data{$file}{BINARY} = 1;
}
}
elsif (($adddel, $file) =
/^ (create|delete) mode [0-7]+ (.*)$/) {
$data{$file}{FILE_ADDDEL} = $adddel;
}
}
for (sort keys %data) {
my $it = $data{$_};
if ($only) {
if ($only eq 'index-only') {
next if ($it->{INDEX} eq 'unchanged');
}
if ($only eq 'file-only') {
next if ($it->{FILE} eq 'nothing');
}
}
push @return, +{
VALUE => $_,
%$it,
};
}
return @return;
}
sub find_unique {
my ($string, @stuff) = @_;
my $found = undef;
for (my $i = 0; $i < @stuff; $i++) {
my $it = $stuff[$i];
my $hit = undef;
if (ref $it) {
if ((ref $it) eq 'ARRAY') {
$it = $it->[0];
}
else {
$it = $it->{VALUE};
}
}
eval {
if ($it =~ /^$string/) {
$hit = 1;
};
};
if (defined $hit && defined $found) {
return undef;
}
if ($hit) {
$found = $i + 1;
}
}
return $found;
}
# inserts string into trie and updates count for each character
sub update_trie {
my ($trie, $string) = @_;
foreach (split //, $string) {
$trie = $trie->{$_} ||= {COUNT => 0};
$trie->{COUNT}++;
}
}
# returns an array of tuples (prefix, remainder)
sub find_unique_prefixes {
my @stuff = @_;
my @return = ();
# any single prefix exceeding the soft limit is omitted
# if any prefix exceeds the hard limit all are omitted
# 0 indicates no limit
my $soft_limit = 0;
my $hard_limit = 3;
# build a trie modelling all possible options
my %trie;
foreach my $print (@stuff) {
if ((ref $print) eq 'ARRAY') {
$print = $print->[0];
}
elsif ((ref $print) eq 'HASH') {
$print = $print->{VALUE};
}
update_trie(\%trie, $print);
push @return, $print;
}
# use the trie to find the unique prefixes
for (my $i = 0; $i < @return; $i++) {
my $ret = $return[$i];
my @letters = split //, $ret;
my %search = %trie;
my ($prefix, $remainder);
my $j;
for ($j = 0; $j < @letters; $j++) {
my $letter = $letters[$j];
if ($search{$letter}{COUNT} == 1) {
$prefix = substr $ret, 0, $j + 1;
$remainder = substr $ret, $j + 1;
last;
}
else {
my $prefix = substr $ret, 0, $j;
return ()
if ($hard_limit && $j + 1 > $hard_limit);
}
%search = %{$search{$letter}};
}
if ($soft_limit && $j + 1 > $soft_limit) {
$prefix = undef;
$remainder = $ret;
}
$return[$i] = [$prefix, $remainder];
}
return @return;
}
# filters out prefixes which have special meaning to list_and_choose()
sub is_valid_prefix {
my $prefix = shift;
return (defined $prefix) &&
!($prefix =~ /[\s,]/) && # separators
!($prefix =~ /^-/) && # deselection
!($prefix =~ /^\d+/) && # selection
($prefix ne '*') && # "all" wildcard
($prefix ne '?'); # prompt help
}
# given a prefix/remainder tuple return a string with the prefix highlighted
# for now use square brackets; later might use ANSI colors (underline, bold)
sub highlight_prefix {
my $prefix = shift;
my $remainder = shift;
if (!defined $prefix) {
return $remainder;
}
if (!is_valid_prefix($prefix)) {
return "$prefix$remainder";
}
if (!$menu_use_color) {
return "[$prefix]$remainder";
}
return "$prompt_color$prefix$normal_color$remainder";
}
sub list_and_choose {
my ($opts, @stuff) = @_;
my (@chosen, @return);
my $i;
my @prefixes = find_unique_prefixes(@stuff) unless $opts->{LIST_ONLY};
TOPLOOP:
while (1) {
my $last_lf = 0;
if ($opts->{HEADER}) {
if (!$opts->{LIST_FLAT}) {
print " ";
}
print colored $header_color, "$opts->{HEADER}\n";
}
for ($i = 0; $i < @stuff; $i++) {
my $chosen = $chosen[$i] ? '*' : ' ';
my $print = $stuff[$i];
my $ref = ref $print;
my $highlighted = highlight_prefix(@{$prefixes[$i]})
if @prefixes;
if ($ref eq 'ARRAY') {
$print = $highlighted || $print->[0];
}
elsif ($ref eq 'HASH') {
my $value = $highlighted || $print->{VALUE};
$print = sprintf($status_fmt,
$print->{INDEX},
$print->{FILE},
$value);
}
else {
$print = $highlighted || $print;
}
printf("%s%2d: %s", $chosen, $i+1, $print);
if (($opts->{LIST_FLAT}) &&
(($i + 1) % ($opts->{LIST_FLAT}))) {
print "\t";
$last_lf = 0;
}
else {
print "\n";
$last_lf = 1;
}
}
if (!$last_lf) {
print "\n";
}
return if ($opts->{LIST_ONLY});
print colored $prompt_color, $opts->{PROMPT};
if ($opts->{SINGLETON}) {
print "> ";
}
else {
print ">> ";
}
my $line = <STDIN>;
if (!$line) {
print "\n";
$opts->{ON_EOF}->() if $opts->{ON_EOF};
last;
}
chomp $line;
last if $line eq '';
if ($line eq '?') {
$opts->{SINGLETON} ?
singleton_prompt_help_cmd() :
prompt_help_cmd();
next TOPLOOP;
}
for my $choice (split(/[\s,]+/, $line)) {
my $choose = 1;
my ($bottom, $top);
# Input that begins with '-'; unchoose
if ($choice =~ s/^-//) {
$choose = 0;
}
# A range can be specified like 5-7 or 5-.
if ($choice =~ /^(\d+)-(\d*)$/) {
($bottom, $top) = ($1, length($2) ? $2 : 1 + @stuff);
}
elsif ($choice =~ /^\d+$/) {
$bottom = $top = $choice;
}
elsif ($choice eq '*') {
$bottom = 1;
$top = 1 + @stuff;
}
else {
$bottom = $top = find_unique($choice, @stuff);
if (!defined $bottom) {
print "Huh ($choice)?\n";
next TOPLOOP;
}
}
if ($opts->{SINGLETON} && $bottom != $top) {
print "Huh ($choice)?\n";
next TOPLOOP;
}
for ($i = $bottom-1; $i <= $top-1; $i++) {
next if (@stuff <= $i || $i < 0);
$chosen[$i] = $choose;
}
}
last if ($opts->{IMMEDIATE} || $line eq '*');
}
for ($i = 0; $i < @stuff; $i++) {
if ($chosen[$i]) {
push @return, $stuff[$i];
}
}
return @return;
}
sub singleton_prompt_help_cmd {
print colored $help_color, <<\EOF ;
Prompt help:
1 - select a numbered item
foo - select item based on unique prefix
- (empty) select nothing
EOF
}
sub prompt_help_cmd {
print colored $help_color, <<\EOF ;
Prompt help:
1 - select a single item
3-5 - select a range of items
2-3,6-9 - select multiple ranges
foo - select item based on unique prefix
-... - unselect specified items
* - choose all items
- (empty) finish selecting
EOF
}
sub status_cmd {
list_and_choose({ LIST_ONLY => 1, HEADER => $status_head },
list_modified());
print "\n";
}
sub say_n_paths {
my $did = shift @_;
my $cnt = scalar @_;
print "$did ";
if (1 < $cnt) {
print "$cnt paths\n";
}
else {
print "one path\n";
}
}
sub update_cmd {
my @mods = list_modified('file-only');
return if (!@mods);
my @update = list_and_choose({ PROMPT => 'Update',
HEADER => $status_head, },
@mods);
if (@update) {
system(qw(git update-index --add --remove --),
map { $_->{VALUE} } @update);
say_n_paths('updated', @update);
}
print "\n";
}
sub revert_cmd {
my @update = list_and_choose({ PROMPT => 'Revert',
HEADER => $status_head, },
list_modified());
if (@update) {
if (is_initial_commit()) {
system(qw(git rm --cached),
map { $_->{VALUE} } @update);
}
else {
my @lines = run_cmd_pipe(qw(git ls-tree HEAD --),
map { $_->{VALUE} } @update);
my $fh;
open $fh, '| git update-index --index-info'
or die;
for (@lines) {
print $fh $_;
}
close($fh);
for (@update) {
if ($_->{INDEX_ADDDEL} &&
$_->{INDEX_ADDDEL} eq 'create') {
system(qw(git update-index --force-remove --),
$_->{VALUE});
print "note: $_->{VALUE} is untracked now.\n";
}
}
}
refresh();
say_n_paths('reverted', @update);
}
print "\n";
}
sub add_untracked_cmd {
my @add = list_and_choose({ PROMPT => 'Add untracked' },
list_untracked());
if (@add) {
system(qw(git update-index --add --), @add);
say_n_paths('added', @add);
}
print "\n";
}
sub parse_diff {
my ($path) = @_;
my @diff = run_cmd_pipe(qw(git diff-files -p --), $path);
my @colored = ();
if ($diff_use_color) {
@colored = run_cmd_pipe(qw(git diff-files -p --color --), $path);
}
my (@hunk) = { TEXT => [], DISPLAY => [] };
for (my $i = 0; $i < @diff; $i++) {
if ($diff[$i] =~ /^@@ /) {
push @hunk, { TEXT => [], DISPLAY => [] };
}
push @{$hunk[-1]{TEXT}}, $diff[$i];
push @{$hunk[-1]{DISPLAY}},
($diff_use_color ? $colored[$i] : $diff[$i]);
}
return @hunk;
}
sub parse_diff_header {
my $src = shift;
my $head = { TEXT => [], DISPLAY => [] };
my $mode = { TEXT => [], DISPLAY => [] };
for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
my $dest = $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ?
$mode : $head;
push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
}
return ($head, $mode);
}
sub hunk_splittable {
my ($text) = @_;
my @s = split_hunk($text);
return (1 < @s);
}
sub parse_hunk_header {
my ($line) = @_;
my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) =
$line =~ /^@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/;
$o_cnt = 1 unless defined $o_cnt;
$n_cnt = 1 unless defined $n_cnt;
return ($o_ofs, $o_cnt, $n_ofs, $n_cnt);
}
sub split_hunk {
my ($text, $display) = @_;
my @split = ();
if (!defined $display) {
$display = $text;
}
# If there are context lines in the middle of a hunk,
# it can be split, but we would need to take care of
# overlaps later.
my ($o_ofs, undef, $n_ofs) = parse_hunk_header($text->[0]);
my $hunk_start = 1;
OUTER:
while (1) {
my $next_hunk_start = undef;
my $i = $hunk_start - 1;
my $this = +{
TEXT => [],
DISPLAY => [],
OLD => $o_ofs,
NEW => $n_ofs,
OCNT => 0,
NCNT => 0,
ADDDEL => 0,
POSTCTX => 0,
USE => undef,
};
while (++$i < @$text) {
my $line = $text->[$i];
my $display = $display->[$i];
if ($line =~ /^ /) {
if ($this->{ADDDEL} &&
!defined $next_hunk_start) {
# We have seen leading context and
# adds/dels and then here is another
# context, which is trailing for this
# split hunk and leading for the next
# one.
$next_hunk_start = $i;
}
push @{$this->{TEXT}}, $line;
push @{$this->{DISPLAY}}, $display;
$this->{OCNT}++;
$this->{NCNT}++;
if (defined $next_hunk_start) {
$this->{POSTCTX}++;
}
next;
}
# add/del
if (defined $next_hunk_start) {
# We are done with the current hunk and
# this is the first real change for the
# next split one.
$hunk_start = $next_hunk_start;
$o_ofs = $this->{OLD} + $this->{OCNT};
$n_ofs = $this->{NEW} + $this->{NCNT};
$o_ofs -= $this->{POSTCTX};
$n_ofs -= $this->{POSTCTX};
push @split, $this;
redo OUTER;
}
push @{$this->{TEXT}}, $line;
push @{$this->{DISPLAY}}, $display;
$this->{ADDDEL}++;
if ($line =~ /^-/) {
$this->{OCNT}++;
}
else {
$this->{NCNT}++;
}
}
push @split, $this;
last;
}
for my $hunk (@split) {
$o_ofs = $hunk->{OLD};
$n_ofs = $hunk->{NEW};
my $o_cnt = $hunk->{OCNT};
my $n_cnt = $hunk->{NCNT};
my $head = ("@@ -$o_ofs" .
(($o_cnt != 1) ? ",$o_cnt" : '') .
" +$n_ofs" .
(($n_cnt != 1) ? ",$n_cnt" : '') .
" @@\n");
my $display_head = $head;
unshift @{$hunk->{TEXT}}, $head;
if ($diff_use_color) {
$display_head = colored($fraginfo_color, $head);
}
unshift @{$hunk->{DISPLAY}}, $display_head;
}
return @split;
}
sub color_diff {
return map {
colored((/^@/ ? $fraginfo_color :
/^\+/ ? $diff_new_color :
/^-/ ? $diff_old_color :
$diff_plain_color),
$_);
} @_;
}
sub edit_hunk_manually {
my ($oldtext) = @_;
my $hunkfile = $repo->repo_path . "/addp-hunk-edit.diff";
my $fh;
open $fh, '>', $hunkfile
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;
print $fh <<EOF;
# ---
# To remove '-' lines, make them ' ' lines (context).
# To remove '+' lines, delete them.
# 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
# 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
close $fh;
my $editor = $ENV{GIT_EDITOR} || $repo->config("core.editor")
|| $ENV{VISUAL} || $ENV{EDITOR} || "vi";
system('sh', '-c', $editor.' "$@"', $editor, $hunkfile);
open $fh, '<', $hunkfile
or die "failed to open hunk edit file for reading: " . $!;
my @newtext = grep { !/^#/ } <$fh>;
close $fh;
unlink $hunkfile;
# Abort if nothing remains
if (!grep { /\S/ } @newtext) {
return undef;
}
# Reinsert the first hunk header if the user accidentally deleted it
if ($newtext[0] !~ /^@/) {
unshift @newtext, $oldtext->[0];
}
return \@newtext;
}
sub diff_applies {
my $fh;
open $fh, '| git apply --recount --cached --check';
for my $h (@_) {
print $fh @{$h->{TEXT}};
}
return close $fh;
}
sub prompt_yesno {
my ($prompt) = @_;
while (1) {
print colored $prompt_color, $prompt;
my $line = <STDIN>;
return 0 if $line =~ /^n/i;
return 1 if $line =~ /^y/i;
}
}
sub edit_hunk_loop {
my ($head, $hunk, $ix) = @_;
my $text = $hunk->[$ix]->{TEXT};
while (1) {
$text = edit_hunk_manually($text);
if (!defined $text) {
return undef;
}
my $newhunk = { TEXT => $text, USE => 1 };
if (diff_applies($head,
@{$hunk}[0..$ix-1],
$newhunk,
@{$hunk}[$ix+1..$#{$hunk}])) {
$newhunk->{DISPLAY} = [color_diff(@{$text})];
return $newhunk;
}
else {
prompt_yesno(
'Your edited hunk does not apply. Edit again '
. '(saying "no" discards!) [y/n]? '
) or return undef;
}
}
}
sub help_patch_cmd {
print colored $help_color, <<\EOF ;
y - stage this hunk
n - do not stage this hunk
a - stage this and all the remaining hunks in the file
d - do not stage this hunk nor any of the remaining hunks in the file
j - leave this hunk undecided, see next undecided hunk
J - leave this hunk undecided, see next hunk
k - leave this hunk undecided, see previous undecided hunk
K - leave this hunk undecided, see previous hunk
s - split the current hunk into smaller hunks
e - manually edit the current hunk
? - print help
EOF
}
sub patch_update_cmd {
my @all_mods = list_modified('file-only');
my @mods = grep { !($_->{BINARY}) } @all_mods;
my @them;
if (!@mods) {
if (@all_mods) {
print STDERR "Only binary files changed.\n";
} else {
print STDERR "No changes.\n";
}
return 0;
}
if ($patch_mode) {
@them = @mods;
}
else {
@them = list_and_choose({ PROMPT => 'Patch update',
HEADER => $status_head, },
@mods);
}
for (@them) {
patch_update_file($_->{VALUE});
}
}
sub patch_update_file {
my ($ix, $num);
my $path = shift;
my ($head, @hunk) = parse_diff($path);
($head, my $mode) = parse_diff_header($head);
for (@{$head->{DISPLAY}}) {
print;
}
if (@{$mode->{TEXT}}) {
while (1) {
print @{$mode->{DISPLAY}};
print colored $prompt_color,
"Stage mode change [y/n/a/d/?]? ";
my $line = <STDIN>;
if ($line =~ /^y/i) {
$mode->{USE} = 1;
last;
}
elsif ($line =~ /^n/i) {
$mode->{USE} = 0;
last;
}
elsif ($line =~ /^a/i) {
$_->{USE} = 1 foreach ($mode, @hunk);
last;
}
elsif ($line =~ /^d/i) {
$_->{USE} = 0 foreach ($mode, @hunk);
last;
}
else {
help_patch_cmd('');
next;
}
}
}
$num = scalar @hunk;
$ix = 0;
while (1) {
my ($prev, $next, $other, $undecided, $i);
$other = '';
if ($num <= $ix) {
$ix = 0;
}
for ($i = 0; $i < $ix; $i++) {
if (!defined $hunk[$i]{USE}) {
$prev = 1;
$other .= '/k';
last;
}
}
if ($ix) {
$other .= '/K';
}
for ($i = $ix + 1; $i < $num; $i++) {
if (!defined $hunk[$i]{USE}) {
$next = 1;
$other .= '/j';
last;
}
}
if ($ix < $num - 1) {
$other .= '/J';
}
for ($i = 0; $i < $num; $i++) {
if (!defined $hunk[$i]{USE}) {
$undecided = 1;
last;
}
}
last if (!$undecided);
if (hunk_splittable($hunk[$ix]{TEXT})) {
$other .= '/s';
}
$other .= '/e';
for (@{$hunk[$ix]{DISPLAY}}) {
print;
}
print colored $prompt_color, "Stage this hunk [y/n/a/d$other/?]? ";
my $line = <STDIN>;
if ($line) {
if ($line =~ /^y/i) {
$hunk[$ix]{USE} = 1;
}
elsif ($line =~ /^n/i) {
$hunk[$ix]{USE} = 0;
}
elsif ($line =~ /^a/i) {
while ($ix < $num) {
if (!defined $hunk[$ix]{USE}) {
$hunk[$ix]{USE} = 1;
}
$ix++;
}
next;
}
elsif ($line =~ /^d/i) {
while ($ix < $num) {
if (!defined $hunk[$ix]{USE}) {
$hunk[$ix]{USE} = 0;
}
$ix++;
}
next;
}
elsif ($other =~ /K/ && $line =~ /^K/) {
$ix--;
next;
}
elsif ($other =~ /J/ && $line =~ /^J/) {
$ix++;
next;
}
elsif ($other =~ /k/ && $line =~ /^k/) {
while (1) {
$ix--;
last if (!$ix ||
!defined $hunk[$ix]{USE});
}
next;
}
elsif ($other =~ /j/ && $line =~ /^j/) {
while (1) {
$ix++;
last if ($ix >= $num ||
!defined $hunk[$ix]{USE});
}
next;
}
elsif ($other =~ /s/ && $line =~ /^s/) {
my @split = split_hunk($hunk[$ix]{TEXT}, $hunk[$ix]{DISPLAY});
if (1 < @split) {
print colored $header_color, "Split into ",
scalar(@split), " hunks.\n";
}
splice (@hunk, $ix, 1, @split);
$num = scalar @hunk;
next;
}
elsif ($line =~ /^e/) {
my $newhunk = edit_hunk_loop($head, \@hunk, $ix);
if (defined $newhunk) {
splice @hunk, $ix, 1, $newhunk;
}
}
else {
help_patch_cmd($other);
next;
}
# soft increment
while (1) {
$ix++;
last if ($ix >= $num ||
!defined $hunk[$ix]{USE});
}
}
}
my $n_lofs = 0;
my @result = ();
if ($mode->{USE}) {
push @result, @{$mode->{TEXT}};
}
for (@hunk) {
if ($_->{USE}) {
push @result, @{$_->{TEXT}};
}
}
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 $_;
}
}
refresh();
}
print "\n";
}
sub diff_cmd {
my @mods = list_modified('index-only');
@mods = grep { !($_->{BINARY}) } @mods;
return if (!@mods);
my (@them) = list_and_choose({ PROMPT => 'Review diff',
IMMEDIATE => 1,
HEADER => $status_head, },
@mods);
return if (!@them);
my $reference = is_initial_commit() ? get_empty_tree() : 'HEAD';
system(qw(git diff -p --cached), $reference, '--',
map { $_->{VALUE} } @them);
}
sub quit_cmd {
print "Bye.\n";
exit(0);
}
sub help_cmd {
print colored $help_color, <<\EOF ;
status - show paths with changes
update - add working tree state to the staged set of changes
revert - revert staged set of changes back to the HEAD version
patch - pick hunks and update selectively
diff - view diff between HEAD and index
add untracked - add contents of untracked files to the staged set of changes
EOF
}
sub process_args {
return unless @ARGV;
my $arg = shift @ARGV;
if ($arg eq "--patch") {
$patch_mode = 1;
$arg = shift @ARGV or die "missing --";
die "invalid argument $arg, expecting --"
unless $arg eq "--";
}
elsif ($arg ne "--") {
die "invalid argument $arg, expecting --";
}
}
sub main_loop {
my @cmd = ([ 'status', \&status_cmd, ],
[ 'update', \&update_cmd, ],
[ 'revert', \&revert_cmd, ],
[ 'add untracked', \&add_untracked_cmd, ],
[ 'patch', \&patch_update_cmd, ],
[ 'diff', \&diff_cmd, ],
[ 'quit', \&quit_cmd, ],
[ 'help', \&help_cmd, ],
);
while (1) {
my ($it) = list_and_choose({ PROMPT => 'What now',
SINGLETON => 1,
LIST_FLAT => 4,
HEADER => '*** Commands ***',
ON_EOF => \&quit_cmd,
IMMEDIATE => 1 }, @cmd);
if ($it) {
eval {
$it->[1]->();
};
if ($@) {
print "$@";
}
}
}
}
process_args();
refresh();
if ($patch_mode) {
patch_update_cmd();
}
else {
status_cmd();
main_loop();
}