X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=build-aux%2Fgitlog-to-changelog;h=c7763138e48937105a116210bdd13cc588e37307;hb=f2c567087196c591677b4542e6f208f37892ec0f;hp=50b1b2fc895eef365f39c8825d047883411b7990;hpb=96ee65902e40c618aa07b6652152ecd5674815f2;p=gnulib.git

diff --git a/build-aux/gitlog-to-changelog b/build-aux/gitlog-to-changelog
index 50b1b2fc8..c7763138e 100755
--- a/build-aux/gitlog-to-changelog
+++ b/build-aux/gitlog-to-changelog
@@ -1,13 +1,15 @@
-#!/usr/bin/perl
+eval '(exit $?0)' && eval 'exec perl -wS "$0" ${1+"$@"}'
+  & eval 'exec perl -wS "$0" $argv:q'
+    if 0;
 # Convert git log output to ChangeLog format.
 
-my $VERSION = '2008-08-19 05:01'; # UTC
+my $VERSION = '2011-10-31 16:06'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
-# Copyright (C) 2008 Free Software Foundation, Inc.
+# Copyright (C) 2008-2011 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -50,14 +52,21 @@ sub usage ($)
   else
     {
       print $STREAM <<EOF;
-Usage: $ME [OPTIONS]
+Usage: $ME [OPTIONS] [ARGS]
 
-Convert git log output to ChangeLog format.
+Convert git log output to ChangeLog format.  If present, any ARGS
+are passed to "git log".  To avoid ARGS being parsed as options to
+$ME, they may be preceded by '--'.
 
 OPTIONS:
 
    --since=DATE convert only the logs since DATE;
                   the default is to convert all log entries.
+   --format=FMT set format string for commit subject and body;
+                  see 'man git-log' for the list of format metacharacters;
+                  the default is '%s%n%b%n'
+   --append-dot append a dot to the first line of each commit message if
+                  there is no other punctuation or blank at the end.
 
    --help       display this help and exit
    --version    output version information and exit
@@ -65,6 +74,7 @@ OPTIONS:
 EXAMPLE:
 
   $ME --since=2008-01-01 > ChangeLog
+  $ME -- -n 5 foo > last-5-commits-to-branch-foo
 
 EOF
     }
@@ -92,19 +102,23 @@ sub quoted_cmd(@)
 }
 
 {
-  my $since_date = '1970-01-01 UTC';
+  my $since_date;
+  my $format_string = '%s%n%b%n';
+  my $append_dot = 0;
   GetOptions
     (
      help => sub { usage 0 },
      version => sub { print "$ME version $VERSION\n"; exit },
      'since=s' => \$since_date,
+     'format=s' => \$format_string,
+     'append-dot' => \$append_dot,
     ) or usage 1;
 
-  @ARGV
-    and (warn "$ME: too many arguments\n"), usage 1;
+  defined $since_date
+    and unshift @ARGV, "--since=$since_date";
 
-  my @cmd = (qw (git log --log-size), "--since=$since_date",
-             '--pretty=format:%ct  %an  <%ae>%n%n%s%n%b%n');
+  my @cmd = (qw (git log --log-size),
+             '--pretty=format:%ct  %an  <%ae>%n%n'.$format_string, @ARGV);
   open PIPE, '-|', @cmd
     or die ("$ME: failed to run `". quoted_cmd (@cmd) ."': $!\n"
             . "(Is your Git too old?  Version 1.5.1 or later is required.)\n");
@@ -149,10 +163,30 @@ sub quoted_cmd(@)
       while ($line[0] =~ /^\s*$/) { shift @line; }
       while ($line[$#line] =~ /^\s*$/) { pop @line; }
 
-      # Prefix each non-empty line with a TAB.
-      @line = map { length $_ ? "\t$_" : '' } @line;
-
-      print "\n", join ("\n", @line), "\n";
+      # If there were any lines
+      if (@line == 0)
+        {
+          warn "$ME: warning: empty commit message:\n  $date_line\n";
+        }
+      else
+        {
+          if ($append_dot)
+            {
+              # If the first line of the message has enough room, then
+              if (length $line[0] < 72)
+                {
+                  # append a dot if there is no other punctuation or blank
+                  # at the end.
+                  $line[0] =~ /[[:punct:]\s]$/
+                    or $line[0] .= '.';
+                }
+            }
+
+          # Prefix each non-empty line with a TAB.
+          @line = map { length $_ ? "\t$_" : '' } @line;
+
+          print "\n", join ("\n", @line), "\n";
+        }
 
       defined ($in = <PIPE>)
         or last;
@@ -166,6 +200,7 @@ sub quoted_cmd(@)
 }
 
 # Local Variables:
+# mode: perl
 # indent-tabs-mode: nil
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "my $VERSION = '"