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index ac598f88e62fc8f48aaaac8376ccde63cb3e2643..335c2c6b56875b97ad6cf8f4406218833afc53ef 100755 (executable)
use strict;
+# command line options
+my $patch_mode;
+
sub run_cmd_pipe {
if ($^O eq 'MSWin32') {
my @invalid = grep {m/[":*]/} @_;
chomp $_;
$_;
}
- run_cmd_pipe(qw(git ls-files --others
- --exclude-per-directory=.gitignore),
- "--exclude-from=$GIT_DIR/info/exclude",
- '--', @_);
+ 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:
-# PRINT: print message
# VALUE: pathname
# BINARY: is a binary path
# INDEX: is index different from HEAD?
my ($only) = @_;
my (%data, @return);
my ($add, $del, $adddel, $file);
+ my @tracked = ();
+
+ if (@ARGV) {
+ @tracked = map {
+ chomp $_; $_;
+ } run_cmd_pipe(qw(git ls-files --exclude-standard --), @ARGV);
+ return if (!@tracked);
+ }
for (run_cmd_pipe(qw(git diff-index --cached
- --numstat --summary HEAD))) {
+ --numstat --summary HEAD --), @tracked)) {
if (($add, $del, $file) =
/^([-\d]+) ([-\d]+) (.*)/) {
my ($change, $bin);
}
}
- for (run_cmd_pipe(qw(git diff-files --numstat --summary))) {
+ for (run_cmd_pipe(qw(git diff-files --numstat --summary --), @tracked)) {
if (($add, $del, $file) =
/^([-\d]+) ([-\d]+) (.*)/) {
if (!exists $data{$file}) {
}
push @return, +{
VALUE => $_,
- PRINT => (sprintf $status_fmt,
- $it->{INDEX}, $it->{FILE}, $_),
%$it,
};
}
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;
+ return $remainder unless defined $prefix;
+ return is_valid_prefix($prefix) ?
+ "[$prefix]$remainder" :
+ "$prefix$remainder";
+}
+
sub list_and_choose {
my ($opts, @stuff) = @_;
my (@chosen, @return);
my $i;
+ my @prefixes = find_unique_prefixes(@stuff) unless $opts->{LIST_ONLY};
TOPLOOP:
while (1) {
for ($i = 0; $i < @stuff; $i++) {
my $chosen = $chosen[$i] ? '*' : ' ';
my $print = $stuff[$i];
- if (ref $print) {
- if ((ref $print) eq 'ARRAY') {
- $print = $print->[0];
- }
- else {
- $print = $print->{PRINT};
- }
+ 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}) &&
}
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);
$chosen[$i] = $choose;
}
}
- last if ($opts->{IMMEDIATE});
+ last if ($opts->{IMMEDIATE} || $line eq '*');
}
for ($i = 0; $i < @stuff; $i++) {
if ($chosen[$i]) {
return @return;
}
+sub singleton_prompt_help_cmd {
+ print <<\EOF ;
+Prompt help:
+1 - select a numbered item
+foo - select item based on unique prefix
+ - (empty) select nothing
+EOF
+}
+
+sub prompt_help_cmd {
+ print <<\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 => $status_head },
list_modified());
print <<\EOF ;
y - stage this hunk
n - do not stage this hunk
-a - stage this and all the remaining hunks
-d - do not stage this hunk nor any of the remaining hunks
+a - stage this and all the remaining hunks in the file
+d - do not stage this hunk nor any of the remaining hunks in the file
j - leave this hunk undecided, see next undecided hunk
J - leave this hunk undecided, see next hunk
k - leave this hunk undecided, see previous undecided hunk
K - leave this hunk undecided, see previous hunk
s - split the current hunk into smaller hunks
+? - print help
EOF
}
sub patch_update_cmd {
- my @mods = list_modified('file-only');
- @mods = grep { !($_->{BINARY}) } @mods;
- return if (!@mods);
+ my @mods = grep { !($_->{BINARY}) } list_modified('file-only');
+ my @them;
- my ($it) = list_and_choose({ PROMPT => 'Patch update',
- SINGLETON => 1,
- IMMEDIATE => 1,
- HEADER => $status_head, },
- @mods);
- return if (!$it);
+ 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 = $it->{VALUE};
+ my $path = shift;
my ($head, @hunk) = parse_diff($path);
for (@{$head->{TEXT}}) {
print;
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 $arg, expecting --";
+ }
+}
+
sub main_loop {
my @cmd = ([ 'status', \&status_cmd, ],
[ 'update', \&update_cmd, ],
}
}
+process_args();
refresh();
-status_cmd();
-main_loop();
+if ($patch_mode) {
+ patch_update_cmd();
+}
+else {
+ status_cmd();
+ main_loop();
+}