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99a48b2fcd
* scripts/: Rename to build-aux/ * Makefile.am: Adjust accordingly. * configure.ac (AC_CONFIG_AUX_DIR): Change to build-aux.
128 lines
3.3 KiB
Plaintext
Executable File
128 lines
3.3 KiB
Plaintext
Executable File
eval '(exit $?0)' && eval 'exec perl -w "$0" ${1+"$@"}'
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& eval 'exec perl -w "$0" $argv:q'
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if 0;
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# An hook script to check the commit log message.
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# Called by "git commit" with one argument, the name of the file
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# that has the commit message. The hook should exit with non-zero
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# status after issuing an appropriate message if it wants to stop the
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# commit. The hook is allowed to edit the commit message file.
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#
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# To enable this hook, copy it to "~/.git/hooks/commit-msg".
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#
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# This script is based on the one from GNU coreutils.
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use strict;
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use warnings;
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(my $ME = $0) =~ s|.*/||;
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my $editor = $ENV{EDITOR} || 'vi';
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$ENV{PATH} = '/bin:/usr/bin';
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# Rewrite the $LOG_FILE (old contents in @$LINE_REF) with an additional
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# commented diagnostic "# $ERR" line at the top.
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sub rewrite($$$)
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{
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my ($log_file, $err, $line_ref) = @_;
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local *LOG;
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open LOG, '>', $log_file
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or die "$ME: $log_file: failed to open for writing: $!";
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print LOG "# $err";
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print LOG @$line_ref;
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close LOG
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or die "$ME: $log_file: failed to rewrite: $!\n";
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}
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sub re_edit($)
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{
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my ($log_file) = @_;
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warn "Interrupt (Ctrl-C) to abort...\n";
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system 'sh', '-c', "$editor $log_file";
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($? & 127) || ($? >> 8)
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and die "$ME: $log_file: the editor ($editor) failed, aborting\n";
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}
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# Given a $LOG_FILE name and a \@LINE buffer,
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# read the contents of the file into the buffer and analyze it.
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# If the log message passes muster, return the empty string.
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# If not, return a diagnostic.
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sub check_msg($$)
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{
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my ($log_file, $line_ref) = @_;
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local *LOG;
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open LOG, '<', $log_file
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or return "failed to open for reading: $!";
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@$line_ref = <LOG>;
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close LOG;
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my @line = @$line_ref;
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chomp @line;
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# Don't filter out blank or comment lines; git does that already,
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# and if we were to ignore them here, it could lead to committing
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# with lines that start with "#" in the log.
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# Filter out leading blank and comment lines.
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# while (@line && $line[0] =~ /^(?:#.*|[ \t]*)$/) { shift @line; }
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# Filter out blank and comment lines at EOF.
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# while (@line && $line[$#line] =~ /^(?:#.*|[ \t]*)$/) { pop @line; }
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@line == 0
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and return 'no log message';
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# The first line should not be too short
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8 < length $line[0] || return 'summary line too short';
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# The first line should not start with an asterisk or a hash sign.
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# An asterisk might indicate that a change entry was started right
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# at the first line.
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$line[0] =~ /^[*#]/ && return "summary line starts with an * or #";
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# Second line should be blank or not present.
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2 <= @line && length $line[1]
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and return 'second line must be empty';
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# Limit line length to allow for the ChangeLog's leading TAB.
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foreach my $line (@line)
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{
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72 < length $line && $line =~ /^[^#]/
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and return 'line longer than 72 characters';
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}
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return '';
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}
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{
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@ARGV == 1
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or die;
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my $log_file = $ARGV[0];
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while (1)
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{
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my @line;
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my $err = check_msg $log_file, \@line;
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$err eq ''
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and last;
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$err = "$ME: $err\n";
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warn $err;
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exit 1;
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# Insert the diagnostic as a comment on the first line of $log_file.
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#rewrite $log_file, $err, \@line;
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#re_edit $log_file;
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#
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## Stop if our parent is killed.
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#getppid() == 1
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# and last;
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}
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}
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# Local Variables:
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# mode: perl
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# End:
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