--- /dev/null
+#!/usr/bin/perl
+
+# Copyright (C) 2007, 2008 Simon Josefsson <simon@josefsson.org>
+# Copyright (C) 2007 Luis Mondesi <lemsx1@gmail.com>
+# * calls git directly. To use it just:
+# cd ~/Project/my_git_repo; git2cl > ChangeLog
+# * implements strptime()
+# * fixes bugs in $comment parsing
+# - copy input before we remove leading spaces
+# - skip "merge branch" statements as they don't
+# have information about files (i.e. we never
+# go into $state 2)
+# - behaves like a pipe/filter if input is given from the CLI
+# else it calls git log by itself
+#
+# The functions mywrap, last_line_len, wrap_log_entry are derived from
+# the cvs2cl tool, see <http://www.red-bean.com/cvs2cl/>:
+# Copyright (C) 2001,2002,2003,2004 Martyn J. Pearce <fluffy@cpan.org>
+# Copyright (C) 1999 Karl Fogel <kfogel@red-bean.com>
+#
+# git2cl is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# git2cl is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with git2cl; see the file COPYING. If not, write to the Free
+# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+use strict;
+use POSIX qw(strftime);
+use Text::Wrap qw(wrap);
+use FileHandle;
+
+use constant EMPTY_LOG_MESSAGE => '*** empty log message ***';
+
+# this is a helper hash for stptime.
+# Assumes you are calling 'git log ...' with LC_ALL=C
+my %month = (
+ 'Jan'=>0,
+ 'Feb'=>1,
+ 'Mar'=>2,
+ 'Apr'=>3,
+ 'May'=>4,
+ 'Jun'=>5,
+ 'Jul'=>6,
+ 'Aug'=>7,
+ 'Sep'=>8,
+ 'Oct'=>9,
+ 'Nov'=>10,
+ 'Dec'=>11,
+);
+
+my $fh = new FileHandle;
+
+sub key_ready
+{
+ my ($rin, $nfd);
+ vec($rin, fileno(STDIN), 1) = 1;
+ return $nfd = select($rin, undef, undef, 0);
+}
+
+sub strptime {
+ my $str = shift;
+ return undef if not defined $str;
+
+ # we are parsing this format
+ # Fri Oct 26 00:42:56 2007 -0400
+ # to these fields
+ # sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1
+ # Luis Mondesi <lemsx1@gmail.com>
+ my @date;
+ if ($str =~ /([[:alpha:]]{3})\s+([[:alpha:]]{3})\s+([[:digit:]]{1,2})\s+([[:digit:]]{1,2}):([[:digit:]]{1,2}):([[:digit:]]{1,2})\s+([[:digit:]]{4})/){
+ push(@date,$6,$5,$4,$3,$month{$2},($7 - 1900),-1,-1,-1);
+ } else {
+ die ("Cannot parse date '$str'\n'");
+ }
+ return @date;
+}
+
+sub mywrap {
+ my ($indent1, $indent2, @text) = @_;
+ # If incoming text looks preformatted, don't get clever
+ my $text = Text::Wrap::wrap($indent1, $indent2, @text);
+ if ( grep /^\s+/m, @text ) {
+ return $text;
+ }
+ my @lines = split /\n/, $text;
+ $indent2 =~ s!^((?: {8})+)!"\t" x (length($1)/8)!e;
+ $lines[0] =~ s/^$indent1\s+/$indent1/;
+ s/^$indent2\s+/$indent2/
+ for @lines[1..$#lines];
+ my $newtext = join "\n", @lines;
+ $newtext .= "\n"
+ if substr($text, -1) eq "\n";
+ return $newtext;
+}
+
+sub last_line_len {
+ my $files_list = shift;
+ my @lines = split (/\n/, $files_list);
+ my $last_line = pop (@lines);
+ return length ($last_line);
+}
+
+# A custom wrap function, sensitive to some common constructs used in
+# log entries.
+sub wrap_log_entry {
+ my $text = shift; # The text to wrap.
+ my $left_pad_str = shift; # String to pad with on the left.
+
+ # These do NOT take left_pad_str into account:
+ my $length_remaining = shift; # Amount left on current line.
+ my $max_line_length = shift; # Amount left for a blank line.
+
+ my $wrapped_text = ''; # The accumulating wrapped entry.
+ my $user_indent = ''; # Inherited user_indent from prev line.
+
+ my $first_time = 1; # First iteration of the loop?
+ my $suppress_line_start_match = 0; # Set to disable line start checks.
+
+ my @lines = split (/\n/, $text);
+ while (@lines) # Don't use `foreach' here, it won't work.
+ {
+ my $this_line = shift (@lines);
+ chomp $this_line;
+
+ if ($this_line =~ /^(\s+)/) {
+ $user_indent = $1;
+ }
+ else {
+ $user_indent = '';
+ }
+
+ # If it matches any of the line-start regexps, print a newline now...
+ if ($suppress_line_start_match)
+ {
+ $suppress_line_start_match = 0;
+ }
+ elsif (($this_line =~ /^(\s*)\*\s+[a-zA-Z0-9]/)
+ || ($this_line =~ /^(\s*)\* [a-zA-Z0-9_\.\/\+-]+/)
+ || ($this_line =~ /^(\s*)\([a-zA-Z0-9_\.\/\+-]+(\)|,\s*)/)
+ || ($this_line =~ /^(\s+)(\S+)/)
+ || ($this_line =~ /^(\s*)- +/)
+ || ($this_line =~ /^()\s*$/)
+ || ($this_line =~ /^(\s*)\*\) +/)
+ || ($this_line =~ /^(\s*)[a-zA-Z0-9](\)|\.|\:) +/))
+ {
+ $length_remaining = $max_line_length - (length ($user_indent));
+ }
+
+ # Now that any user_indent has been preserved, strip off leading
+ # whitespace, so up-folding has no ugly side-effects.
+ $this_line =~ s/^\s*//;
+
+ # Accumulate the line, and adjust parameters for next line.
+ my $this_len = length ($this_line);
+ if ($this_len == 0)
+ {
+ # Blank lines should cancel any user_indent level.
+ $user_indent = '';
+ $length_remaining = $max_line_length;
+ }
+ elsif ($this_len >= $length_remaining) # Line too long, try breaking it.
+ {
+ # Walk backwards from the end. At first acceptable spot, break
+ # a new line.
+ my $idx = $length_remaining - 1;
+ if ($idx < 0) { $idx = 0 };
+ while ($idx > 0)
+ {
+ if (substr ($this_line, $idx, 1) =~ /\s/)
+ {
+ my $line_now = substr ($this_line, 0, $idx);
+ my $next_line = substr ($this_line, $idx);
+ $this_line = $line_now;
+
+ # Clean whitespace off the end.
+ chomp $this_line;
+
+ # The current line is ready to be printed.
+ $this_line .= "\n${left_pad_str}";
+
+ # Make sure the next line is allowed full room.
+ $length_remaining = $max_line_length - (length ($user_indent));
+
+ # Strip next_line, but then preserve any user_indent.
+ $next_line =~ s/^\s*//;
+
+ # Sneak a peek at the user_indent of the upcoming line, so
+ # $next_line (which will now precede it) can inherit that
+ # indent level. Otherwise, use whatever user_indent level
+ # we currently have, which might be none.
+ my $next_next_line = shift (@lines);
+ if ((defined ($next_next_line)) && ($next_next_line =~ /^(\s+)/)) {
+ $next_line = $1 . $next_line if (defined ($1));
+ # $length_remaining = $max_line_length - (length ($1));
+ $next_next_line =~ s/^\s*//;
+ }
+ else {
+ $next_line = $user_indent . $next_line;
+ }
+ if (defined ($next_next_line)) {
+ unshift (@lines, $next_next_line);
+ }
+ unshift (@lines, $next_line);
+
+ # Our new next line might, coincidentally, begin with one of
+ # the line-start regexps, so we temporarily turn off
+ # sensitivity to that until we're past the line.
+ $suppress_line_start_match = 1;
+
+ last;
+ }
+ else
+ {
+ $idx--;
+ }
+ }
+
+ if ($idx == 0)
+ {
+ # We bottomed out because the line is longer than the
+ # available space. But that could be because the space is
+ # small, or because the line is longer than even the maximum
+ # possible space. Handle both cases below.
+
+ if ($length_remaining == ($max_line_length - (length ($user_indent))))
+ {
+ # The line is simply too long -- there is no hope of ever
+ # breaking it nicely, so just insert it verbatim, with
+ # appropriate padding.
+ $this_line = "\n${left_pad_str}${this_line}";
+ }
+ else
+ {
+ # Can't break it here, but may be able to on the next round...
+ unshift (@lines, $this_line);
+ $length_remaining = $max_line_length - (length ($user_indent));
+ $this_line = "\n${left_pad_str}";
+ }
+ }
+ }
+ else # $this_len < $length_remaining, so tack on what we can.
+ {
+ # Leave a note for the next iteration.
+ $length_remaining = $length_remaining - $this_len;
+
+ if ($this_line =~ /\.$/)
+ {
+ $this_line .= " ";
+ $length_remaining -= 2;
+ }
+ else # not a sentence end
+ {
+ $this_line .= " ";
+ $length_remaining -= 1;
+ }
+ }
+
+ # Unconditionally indicate that loop has run at least once.
+ $first_time = 0;
+
+ $wrapped_text .= "${user_indent}${this_line}";
+ }
+
+ # One last bit of padding.
+ $wrapped_text .= "\n";
+
+ return $wrapped_text;
+}
+
+# main
+
+my @date;
+my $author;
+my @files;
+my $comment;
+
+my $state; # 0-header 1-comment 2-files
+my $done = 0;
+
+$state = 0;
+
+# if reading from STDIN, we assume that we are
+# getting git log as input
+if (key_ready())
+{
+
+ #my $dummyfh; # don't care about writing
+ #($fh,$dummyfh) = FileHandle::pipe;
+ $fh->fdopen(*STDIN, 'r');
+}
+else
+{
+ $fh->open("LC_ALL=C git log --pretty --numstat --summary . |")
+ or die("Cannot execute git log...$!\n");
+}
+
+while (my $_l = <$fh>) {
+ #print STDERR "debug ($state, " . (@date ? (strftime "%Y-%m-%d", @date) : "") . "): `$_'\n";
+ if ($state == 0) {
+ if ($_l =~ m,^Author: (.*),) {
+ $author = $1;
+ }
+ if ($_l =~ m,^Date: (.*),) {
+ @date = strptime($1);
+ }
+ $state = 1 if ($_l =~ m,^$, and $author and (@date+0>0));
+ } elsif ($state == 1) {
+ # * modifying our input text is a bad choice
+ # let's make a copy of it first, then we remove spaces
+ # * if we meet a "merge branch" statement, we need to start
+ # over and find a real entry
+ # Luis Mondesi <lemsx1@gmail.com>
+ my $_s = $_l;
+ $_s =~ s/^ //g;
+ if ($_s =~ m/^Merge branch/)
+ {
+ $state=0;
+ next;
+ }
+ $comment = $comment . $_s;
+ $state = 2 if ($_l =~ m,^$,);
+ } elsif ($state == 2) {
+ if ($_l =~ m,^([0-9]+)\t([0-9]+)\t(.*)$,) {
+ push @files, $3;
+ }
+ $done = 1 if ($_l =~ m,^$,);
+ }
+
+ if ($done) {
+ print (strftime "%Y-%m-%d $author\n\n", @date);
+
+ my $files = join (", ", @files);
+ $files = mywrap ("\t", "\t", "* $files"), ": ";
+
+ if (index($comment, EMPTY_LOG_MESSAGE) > -1 ) {
+ $comment = "[no log message]\n";
+ }
+
+ my $files_last_line_len = 0;
+ $files_last_line_len = last_line_len($files) + 1;
+ my $msg = wrap_log_entry($comment, "\t", 69-$files_last_line_len, 69);
+
+ $msg =~ s/[ \t]+\n/\n/g;
+
+ print "$files: $msg\n";
+
+ @date = ();
+ $author = "";
+ @files = ();
+ $comment = "";
+
+ $state = 0;
+ $done = 0;
+ }
+}
+
+if (@date + 0)
+{
+ print (strftime "%Y-%m-%d $author\n\n", @date);
+ my $msg = wrap_log_entry($comment, "\t", 69, 69);
+ $msg =~ s/[ \t]+\n/\n/g;
+ print "\t* $msg\n";
+}
projects / synfig.git / commitdiff