+++ /dev/null
-#!/bin/sh
-#! -*-perl-*-
-
-# Convert git log output to ChangeLog format.
-
-# Copyright (C) 2008-2020 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
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
-#
-# Written by Jim Meyering
-
-# This is a prologue that allows to run a perl script as an executable
-# on systems that are compliant to a POSIX version before POSIX:2017.
-# On such systems, the usual invocation of an executable through execlp()
-# or execvp() fails with ENOEXEC if it is a script that does not start
-# with a #! line. The script interpreter mentioned in the #! line has
-# to be /bin/sh, because on GuixSD systems that is the only program that
-# has a fixed file name. The second line is essential for perl and is
-# also useful for editing this file in Emacs. The next two lines below
-# are valid code in both sh and perl. When executed by sh, they re-execute
-# the script through the perl program found in $PATH. The '-x' option
-# is essential as well; without it, perl would re-execute the script
-# through /bin/sh. When executed by perl, the next two lines are a no-op.
-eval 'exec perl -wSx "$0" "$@"'
- if 0;
-
-my $VERSION = '2018-03-07 03:47'; # 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.
-
-use strict;
-use warnings;
-use Getopt::Long;
-use POSIX qw(strftime);
-
-(my $ME = $0) =~ s|.*/||;
-
-# use File::Coda; # https://meyering.net/code/Coda/
-END {
- defined fileno STDOUT or return;
- close STDOUT and return;
- warn "$ME: failed to close standard output: $!\n";
- $? ||= 1;
-}
-
-sub usage ($)
-{
- my ($exit_code) = @_;
- my $STREAM = ($exit_code == 0 ? *STDOUT : *STDERR);
- if ($exit_code != 0)
- {
- print $STREAM "Try '$ME --help' for more information.\n";
- }
- else
- {
- print $STREAM <<EOF;
-Usage: $ME [OPTIONS] [ARGS]
-
-Convert git log output to ChangeLog format. If present, any ARGS
-are passed to "git log". To avoid ARGS being parsed as options to
-$ME, they may be preceded by '--'.
-
-OPTIONS:
-
- --amend=FILE FILE maps from an SHA1 to perl code (i.e., s/old/new/) that
- makes a change to SHA1's commit log text or metadata.
- --append-dot append a dot to the first line of each commit message if
- there is no other punctuation or blank at the end.
- --no-cluster never cluster commit messages under the same date/author
- header; the default is to cluster adjacent commit messages
- if their headers are the same and neither commit message
- contains multiple paragraphs.
- --srcdir=DIR the root of the source tree, from which the .git/
- directory can be derived.
- --since=DATE convert only the logs since DATE;
- the default is to convert all log entries.
- --until=DATE convert only the logs older than DATE.
- --ignore-matching=PAT ignore commit messages whose first lines match PAT.
- --ignore-line=PAT ignore lines of commit messages that match PAT.
- --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'
- --strip-tab remove one additional leading TAB from commit message lines.
- --strip-cherry-pick remove data inserted by "git cherry-pick";
- this includes the "cherry picked from commit ..." line,
- and the possible final "Conflicts:" paragraph.
- --help display this help and exit
- --version output version information and exit
-
-EXAMPLE:
-
- $ME --since=2008-01-01 > ChangeLog
- $ME -- -n 5 foo > last-5-commits-to-branch-foo
-
-SPECIAL SYNTAX:
-
-The following types of strings are interpreted specially when they appear
-at the beginning of a log message line. They are not copied to the output.
-
- Copyright-paperwork-exempt: Yes
- Append the "(tiny change)" notation to the usual "date name email"
- ChangeLog header to mark a change that does not require a copyright
- assignment.
- Co-authored-by: Joe User <user\@example.com>
- List the specified name and email address on a second
- ChangeLog header, denoting a co-author.
- Signed-off-by: Joe User <user\@example.com>
- These lines are simply elided.
-
-In a FILE specified via --amend, comment lines (starting with "#") are ignored.
-FILE must consist of <SHA,CODE+> pairs where SHA is a 40-byte SHA1 (alone on
-a line) referring to a commit in the current project, and CODE refers to one
-or more consecutive lines of Perl code. Pairs must be separated by one or
-more blank line.
-
-Here is sample input for use with --amend=FILE, from coreutils:
-
-3a169f4c5d9159283548178668d2fae6fced3030
-# fix typo in title:
-s/all tile types/all file types/
-
-1379ed974f1fa39b12e2ffab18b3f7a607082202
-# Due to a bug in vc-dwim, I mis-attributed a patch by Paul to myself.
-# Change the author to be Paul. Note the escaped "@":
-s,Jim .*>,Paul Eggert <eggert\\\@cs.ucla.edu>,
-
-EOF
- }
- exit $exit_code;
-}
-
-# If the string $S is a well-behaved file name, simply return it.
-# If it contains white space, quotes, etc., quote it, and return the new string.
-sub shell_quote($)
-{
- my ($s) = @_;
- if ($s =~ m![^\w+/.,-]!)
- {
- # Convert each single quote to '\''
- $s =~ s/\'/\'\\\'\'/g;
- # Then single quote the string.
- $s = "'$s'";
- }
- return $s;
-}
-
-sub quoted_cmd(@)
-{
- return join (' ', map {shell_quote $_} @_);
-}
-
-# Parse file F.
-# Comment lines (starting with "#") are ignored.
-# F must consist of <SHA,CODE+> pairs where SHA is a 40-byte SHA1
-# (alone on a line) referring to a commit in the current project, and
-# CODE refers to one or more consecutive lines of Perl code.
-# Pairs must be separated by one or more blank line.
-sub parse_amend_file($)
-{
- my ($f) = @_;
-
- open F, '<', $f
- or die "$ME: $f: failed to open for reading: $!\n";
-
- my $fail;
- my $h = {};
- my $in_code = 0;
- my $sha;
- while (defined (my $line = <F>))
- {
- $line =~ /^\#/
- and next;
- chomp $line;
- $line eq ''
- and $in_code = 0, next;
-
- if (!$in_code)
- {
- $line =~ /^([[:xdigit:]]{40})$/
- or (warn "$ME: $f:$.: invalid line; expected an SHA1\n"),
- $fail = 1, next;
- $sha = lc $1;
- $in_code = 1;
- exists $h->{$sha}
- and (warn "$ME: $f:$.: duplicate SHA1\n"),
- $fail = 1, next;
- }
- else
- {
- $h->{$sha} ||= '';
- $h->{$sha} .= "$line\n";
- }
- }
- close F;
-
- $fail
- and exit 1;
-
- return $h;
-}
-
-# git_dir_option $SRCDIR
-#
-# From $SRCDIR, the --git-dir option to pass to git (none if $SRCDIR
-# is undef). Return as a list (0 or 1 element).
-sub git_dir_option($)
-{
- my ($srcdir) = @_;
- my @res = ();
- if (defined $srcdir)
- {
- my $qdir = shell_quote $srcdir;
- my $cmd = "cd $qdir && git rev-parse --show-toplevel";
- my $qcmd = shell_quote $cmd;
- my $git_dir = qx($cmd);
- defined $git_dir
- or die "$ME: cannot run $qcmd: $!\n";
- $? == 0
- or die "$ME: $qcmd had unexpected exit code or signal ($?)\n";
- chomp $git_dir;
- push @res, "--git-dir=$git_dir/.git";
- }
- @res;
-}
-
-{
- my $since_date;
- my $until_date;
- my $format_string = '%s%n%b%n';
- my $amend_file;
- my $append_dot = 0;
- my $cluster = 1;
- my $ignore_matching;
- my $ignore_line;
- my $strip_tab = 0;
- my $strip_cherry_pick = 0;
- my $srcdir;
- GetOptions
- (
- help => sub { usage 0 },
- version => sub { print "$ME version $VERSION\n"; exit },
- 'since=s' => \$since_date,
- 'until=s' => \$until_date,
- 'format=s' => \$format_string,
- 'amend=s' => \$amend_file,
- 'append-dot' => \$append_dot,
- 'cluster!' => \$cluster,
- 'ignore-matching=s' => \$ignore_matching,
- 'ignore-line=s' => \$ignore_line,
- 'strip-tab' => \$strip_tab,
- 'strip-cherry-pick' => \$strip_cherry_pick,
- 'srcdir=s' => \$srcdir,
- ) or usage 1;
-
- defined $since_date
- and unshift @ARGV, "--since=$since_date";
- defined $until_date
- and unshift @ARGV, "--until=$until_date";
-
- # This is a hash that maps an SHA1 to perl code (i.e., s/old/new/)
- # that makes a correction in the log or attribution of that commit.
- my $amend_code = defined $amend_file ? parse_amend_file $amend_file : {};
-
- my @cmd = ('git',
- git_dir_option $srcdir,
- qw(log --log-size),
- '--pretty=format:%H:%ct %an <%ae>%n%n'.$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");
-
- my $prev_multi_paragraph;
- my $prev_date_line = '';
- my @prev_coauthors = ();
- my @skipshas = ();
- while (1)
- {
- defined (my $in = <PIPE>)
- or last;
- $in =~ /^log size (\d+)$/
- or die "$ME:$.: Invalid line (expected log size):\n$in";
- my $log_nbytes = $1;
-
- my $log;
- my $n_read = read PIPE, $log, $log_nbytes;
- $n_read == $log_nbytes
- or die "$ME:$.: unexpected EOF\n";
-
- # Extract leading hash.
- my ($sha, $rest) = split ':', $log, 2;
- defined $sha
- or die "$ME:$.: malformed log entry\n";
- $sha =~ /^[[:xdigit:]]{40}$/
- or die "$ME:$.: invalid SHA1: $sha\n";
-
- my $skipflag = 0;
- if (@skipshas)
- {
- foreach(@skipshas)
- {
- if ($sha =~ /^$_/)
- {
- $skipflag = $_;
- last;
- }
- }
- }
-
- # If this commit's log requires any transformation, do it now.
- my $code = $amend_code->{$sha};
- if (defined $code)
- {
- eval 'use Safe';
- my $s = new Safe;
- # Put the unpreprocessed entry into "$_".
- $_ = $rest;
-
- # Let $code operate on it, safely.
- my $r = $s->reval("$code")
- or die "$ME:$.:$sha: failed to eval \"$code\":\n$@\n";
-
- # Note that we've used this entry.
- delete $amend_code->{$sha};
-
- # Update $rest upon success.
- $rest = $_;
- }
-
- # Remove lines inserted by "git cherry-pick".
- if ($strip_cherry_pick)
- {
- $rest =~ s/^\s*Conflicts:\n.*//sm;
- $rest =~ s/^\s*\(cherry picked from commit [\da-f]+\)\n//m;
- }
-
- my @line = split /[ \t]*\n/, $rest;
- my $author_line = shift @line;
- defined $author_line
- or die "$ME:$.: unexpected EOF\n";
- $author_line =~ /^(\d+) (.*>)$/
- or die "$ME:$.: Invalid line "
- . "(expected date/author/email):\n$author_line\n";
-
- # Format 'Copyright-paperwork-exempt: Yes' as a standard ChangeLog
- # `(tiny change)' annotation.
- my $tiny = (grep (/^(?:Copyright-paperwork-exempt|Tiny-change):\s+[Yy]es$/, @line)
- ? ' (tiny change)' : '');
-
- my $date_line = sprintf "%s %s$tiny\n",
- strftime ("%Y-%m-%d", localtime ($1)), $2;
-
- my @coauthors = grep /^Co-authored-by:.*$/, @line;
- # Omit meta-data lines we've already interpreted.
- @line = grep !/^(?:Signed-off-by:[ ].*>$
- |Co-authored-by:[ ]
- |Copyright-paperwork-exempt:[ ]
- |Tiny-change:[ ]
- )/x, @line;
-
- # Remove leading and trailing blank lines.
- if (@line)
- {
- while ($line[0] =~ /^\s*$/) { shift @line; }
- while ($line[$#line] =~ /^\s*$/) { pop @line; }
- }
-
- # Handle Emacs gitmerge.el "skipped" commits.
- # Yes, this should be controlled by an option. So sue me.
- if ( grep /^(; )?Merge from /, @line )
- {
- my $found = 0;
- foreach (@line)
- {
- if (grep /^The following commit.*skipped:$/, $_)
- {
- $found = 1;
- ## Reset at each merge to reduce chance of false matches.
- @skipshas = ();
- next;
- }
- if ($found && $_ =~ /^([[:xdigit:]]{7,}) [^ ]/)
- {
- push ( @skipshas, $1 );
- }
- }
- }
-
- # Ignore commits that match the --ignore-matching pattern, if specified.
- if (defined $ignore_matching && @line && $line[0] =~ /$ignore_matching/)
- {
- $skipflag = 1;
- }
- elsif ($skipflag)
- {
- ## Perhaps only warn if a pattern matches more than once?
- warn "$ME: warning: skipping $sha due to $skipflag\n";
- }
-
- if (! $skipflag)
- {
- if (defined $ignore_line && @line)
- {
- @line = grep ! /$ignore_line/, @line;
- while ($line[$#line] =~ /^\s*$/) { pop @line; }
- }
-
- # Record whether there are two or more paragraphs.
- my $multi_paragraph = grep /^\s*$/, @line;
-
- # Format 'Co-authored-by: A U Thor <email@example.com>' lines in
- # standard multi-author ChangeLog format.
- for (@coauthors)
- {
- s/^Co-authored-by:\s*/\t /;
- s/\s*</ </;
-
- /<.*?@.*\..*>/
- or warn "$ME: warning: missing email address for "
- . substr ($_, 5) . "\n";
- }
-
- # If clustering of commit messages has been disabled, if this header
- # would be different from the previous date/name/etc. header,
- # or if this or the previous entry consists of two or more paragraphs,
- # then print the header.
- if ( ! $cluster
- || $date_line ne $prev_date_line
- || "@coauthors" ne "@prev_coauthors"
- || $multi_paragraph
- || $prev_multi_paragraph)
- {
- $prev_date_line eq ''
- or print "\n";
- print $date_line;
- @coauthors
- and print join ("\n", @coauthors), "\n";
- }
- $prev_date_line = $date_line;
- @prev_coauthors = @coauthors;
- $prev_multi_paragraph = $multi_paragraph;
-
- # If there were any lines
- if (@line == 0)
- {
- warn "$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] .= '.';
- }
- }
-
- # Remove one additional leading TAB from each line.
- $strip_tab
- and map { s/^\t// } @line;
-
- # Prefix each non-empty line with a TAB.
- @line = map { length $_ ? "\t$_" : '' } @line;
-
- print "\n", join ("\n", @line), "\n";
- }
- }
-
- defined ($in = <PIPE>)
- or last;
- $in ne "\n"
- and die "$ME:$.: unexpected line:\n$in";
- }
-
- close PIPE
- or die "$ME: error closing pipe from " . quoted_cmd (@cmd) . "\n";
- # FIXME-someday: include $PROCESS_STATUS in the diagnostic
-
- # Complain about any unused entry in the --amend=F specified file.
- my $fail = 0;
- foreach my $sha (keys %$amend_code)
- {
- warn "$ME:$amend_file: unused entry: $sha\n";
- $fail = 1;
- }
-
- exit $fail;
-}
-
-# Local Variables:
-# mode: perl
-# indent-tabs-mode: nil
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-line-limit: 50
-# time-stamp-start: "my $VERSION = '"
-# time-stamp-format: "%:y-%02m-%02d %02H:%02M"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "'; # UTC"
-# End:
projects / gob-dx.git / blobdiff