1042 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			1042 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
| #!/usr/bin/perl -w
 | |
| 
 | |
| use strict;
 | |
| use Git;
 | |
| 
 | |
| # Prompt colors:
 | |
| my ($prompt_color, $header_color, $help_color, $normal_color);
 | |
| # Diff colors:
 | |
| my ($new_color, $old_color, $fraginfo_color, $metainfo_color, $whitespace_color);
 | |
| 
 | |
| my ($use_color, $diff_use_color);
 | |
| my $repo = Git->repository();
 | |
| 
 | |
| $use_color = $repo->get_colorbool('color.interactive');
 | |
| 
 | |
| if ($use_color) {
 | |
| 	# Set interactive colors:
 | |
| 
 | |
| 	# Grab the 3 main colors in git color string format, with sane
 | |
| 	# (visible) defaults:
 | |
| 	$prompt_color = $repo->get_color("color.interactive.prompt", "bold blue");
 | |
| 	$header_color = $repo->get_color("color.interactive.header", "bold");
 | |
| 	$help_color = $repo->get_color("color.interactive.help", "red bold");
 | |
| 	$normal_color = $repo->get_color("", "reset");
 | |
| 
 | |
| 	# Do we also set diff colors?
 | |
| 	$diff_use_color = $repo->get_colorbool('color.diff');
 | |
| 	if ($diff_use_color) {
 | |
| 		$new_color = $repo->get_color("color.diff.new", "green");
 | |
| 		$old_color = $repo->get_color("color.diff.old", "red");
 | |
| 		$fraginfo_color = $repo->get_color("color.diff.frag", "cyan");
 | |
| 		$metainfo_color = $repo->get_color("color.diff.meta", "bold");
 | |
| 		$whitespace_color = $repo->get_color("color.diff.whitespace", "normal red");
 | |
| 	}
 | |
| }
 | |
| 
 | |
| sub colored {
 | |
| 	my $color = shift;
 | |
| 	my $string = join("", @_);
 | |
| 
 | |
| 	if ($use_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') {
 | |
| 		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');
 | |
| 
 | |
| # 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 $_; $_;
 | |
| 		} run_cmd_pipe(qw(git ls-files --exclude-standard --), @ARGV);
 | |
| 		return if (!@tracked);
 | |
| 	}
 | |
| 
 | |
| 	for (run_cmd_pipe(qw(git diff-index --cached
 | |
| 			     --numstat --summary HEAD --), @tracked)) {
 | |
| 		if (($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 (!$use_color) {
 | |
| 		return "[$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/^-//) {
 | |
| 				$choose = 0;
 | |
| 			}
 | |
| 			# A range can be specified like 5-7
 | |
| 			if ($choice =~ /^(\d+)-(\d+)$/) {
 | |
| 				($bottom, $top) = ($1, $2);
 | |
| 			}
 | |
| 			elsif ($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) {
 | |
| 		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 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}}, $display_head;
 | |
| 	}
 | |
| 	return @split;
 | |
| }
 | |
| 
 | |
| sub find_last_o_ctx {
 | |
| 	my ($it) = @_;
 | |
| 	my $text = $it->{TEXT};
 | |
| 	my ($o_ofs, $o_cnt) = parse_hunk_header($text->[0]);
 | |
| 	my $i = @{$text};
 | |
| 	my $last_o_ctx = $o_ofs + $o_cnt;
 | |
| 	while (0 < --$i) {
 | |
| 		my $line = $text->[$i];
 | |
| 		if ($line =~ /^ /) {
 | |
| 			$last_o_ctx--;
 | |
| 			next;
 | |
| 		}
 | |
| 		last;
 | |
| 	}
 | |
| 	return $last_o_ctx;
 | |
| }
 | |
| 
 | |
| sub merge_hunk {
 | |
| 	my ($prev, $this) = @_;
 | |
| 	my ($o0_ofs, $o0_cnt, $n0_ofs, $n0_cnt) =
 | |
| 	    parse_hunk_header($prev->{TEXT}[0]);
 | |
| 	my ($o1_ofs, $o1_cnt, $n1_ofs, $n1_cnt) =
 | |
| 	    parse_hunk_header($this->{TEXT}[0]);
 | |
| 
 | |
| 	my (@line, $i, $ofs, $o_cnt, $n_cnt);
 | |
| 	$ofs = $o0_ofs;
 | |
| 	$o_cnt = $n_cnt = 0;
 | |
| 	for ($i = 1; $i < @{$prev->{TEXT}}; $i++) {
 | |
| 		my $line = $prev->{TEXT}[$i];
 | |
| 		if ($line =~ /^\+/) {
 | |
| 			$n_cnt++;
 | |
| 			push @line, $line;
 | |
| 			next;
 | |
| 		}
 | |
| 
 | |
| 		last if ($o1_ofs <= $ofs);
 | |
| 
 | |
| 		$o_cnt++;
 | |
| 		$ofs++;
 | |
| 		if ($line =~ /^ /) {
 | |
| 			$n_cnt++;
 | |
| 		}
 | |
| 		push @line, $line;
 | |
| 	}
 | |
| 
 | |
| 	for ($i = 1; $i < @{$this->{TEXT}}; $i++) {
 | |
| 		my $line = $this->{TEXT}[$i];
 | |
| 		if ($line =~ /^\+/) {
 | |
| 			$n_cnt++;
 | |
| 			push @line, $line;
 | |
| 			next;
 | |
| 		}
 | |
| 		$ofs++;
 | |
| 		$o_cnt++;
 | |
| 		if ($line =~ /^ /) {
 | |
| 			$n_cnt++;
 | |
| 		}
 | |
| 		push @line, $line;
 | |
| 	}
 | |
| 	my $head = ("@@ -$o0_ofs" .
 | |
| 		    (($o_cnt != 1) ? ",$o_cnt" : '') .
 | |
| 		    " +$n0_ofs" .
 | |
| 		    (($n_cnt != 1) ? ",$n_cnt" : '') .
 | |
| 		    " @@\n");
 | |
| 	@{$prev->{TEXT}} = ($head, @line);
 | |
| }
 | |
| 
 | |
| sub coalesce_overlapping_hunks {
 | |
| 	my (@in) = @_;
 | |
| 	my @out = ();
 | |
| 
 | |
| 	my ($last_o_ctx);
 | |
| 
 | |
| 	for (grep { $_->{USE} } @in) {
 | |
| 		my $text = $_->{TEXT};
 | |
| 		my ($o_ofs) = parse_hunk_header($text->[0]);
 | |
| 		if (defined $last_o_ctx &&
 | |
| 		    $o_ofs <= $last_o_ctx) {
 | |
| 			merge_hunk($out[-1], $_);
 | |
| 		}
 | |
| 		else {
 | |
| 			push @out, $_;
 | |
| 		}
 | |
| 		$last_o_ctx = find_last_o_ctx($out[-1]);
 | |
| 	}
 | |
| 	return @out;
 | |
| }
 | |
| 
 | |
| sub help_patch_cmd {
 | |
| 	print colored $help_color, <<\EOF ;
 | |
| y - stage this hunk
 | |
| n - do not stage this hunk
 | |
| a - stage this and all the remaining hunks in the file
 | |
| d - do not stage this hunk nor any of the remaining hunks in the file
 | |
| j - leave this hunk undecided, see next undecided hunk
 | |
| J - leave this hunk undecided, see next hunk
 | |
| k - leave this hunk undecided, see previous undecided hunk
 | |
| K - leave this hunk undecided, see previous hunk
 | |
| s - split the current hunk into smaller hunks
 | |
| ? - print help
 | |
| EOF
 | |
| }
 | |
| 
 | |
| sub patch_update_cmd {
 | |
| 	my @mods = grep { !($_->{BINARY}) } list_modified('file-only');
 | |
| 	my @them;
 | |
| 
 | |
| 	if (!@mods) {
 | |
| 		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($path);
 | |
| 	for (@{$head->{DISPLAY}}) {
 | |
| 		print;
 | |
| 	}
 | |
| 	$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})) {
 | |
| 			$other .= '/s';
 | |
| 		}
 | |
| 		for (@{$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);
 | |
| 				$num = scalar @hunk;
 | |
| 				next;
 | |
| 			}
 | |
| 			else {
 | |
| 				help_patch_cmd($other);
 | |
| 				next;
 | |
| 			}
 | |
| 			# soft increment
 | |
| 			while (1) {
 | |
| 				$ix++;
 | |
| 				last if ($ix >= $num ||
 | |
| 					 !defined $hunk[$ix]{USE});
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	@hunk = coalesce_overlapping_hunks(@hunk);
 | |
| 
 | |
| 	my $n_lofs = 0;
 | |
| 	my @result = ();
 | |
| 	for (@hunk) {
 | |
| 		my $text = $_->{TEXT};
 | |
| 		my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) =
 | |
| 		    parse_hunk_header($text->[0]);
 | |
| 
 | |
| 		if (!$_->{USE}) {
 | |
| 			# We would have added ($n_cnt - $o_cnt) lines
 | |
| 			# to the postimage if we were to use this hunk,
 | |
| 			# but we didn't.  So the line number that the next
 | |
| 			# hunk starts at would be shifted by that much.
 | |
| 			$n_lofs -= ($n_cnt - $o_cnt);
 | |
| 			next;
 | |
| 		}
 | |
| 		else {
 | |
| 			if ($n_lofs) {
 | |
| 				$n_ofs += $n_lofs;
 | |
| 				$text->[0] = ("@@ -$o_ofs" .
 | |
| 					      (($o_cnt != 1)
 | |
| 					       ? ",$o_cnt" : '') .
 | |
| 					      " +$n_ofs" .
 | |
| 					      (($n_cnt != 1)
 | |
| 					       ? ",$n_cnt" : '') .
 | |
| 					      " @@\n");
 | |
| 			}
 | |
| 			for (@$text) {
 | |
| 				push @result, $_;
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	if (@result) {
 | |
| 		my $fh;
 | |
| 
 | |
| 		open $fh, '| git apply --cached';
 | |
| 		for (@{$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);
 | |
| 	system(qw(git diff -p --cached HEAD --), 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();
 | |
| }
 |