#!/usr/bin/perl
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# A script to allow Bash or Z-Shell to complete an Ant command-line.
#
# To install for Bash 2.0 or better, add the following to ~/.bashrc:
#
# $ complete -C complete-ant-cmd ant build.sh
#
# To install for Z-Shell 2.5 or better, add the following to ~/.zshrc:
#
# function ant_complete () {
# local args_line args
# read -l args_line
# set -A args $args_line
# set -A reply $(COMP_LINE=$args_line complete-ant-cmd ${args[1]} $1)
# }
# compctl -K ant_complete ant build.sh
#
# @author Mike Williams <mikew@cortexebusiness.com.au>
my $cmdLine = $ENV{'COMP_LINE'};
my $antCmd = $ARGV[0];
my $word = $ARGV[1];
my @completions;
if ($word =~ /^-/) {
list( restrict( $word, getArguments() ));
} elsif ($cmdLine =~ /-(f|buildfile)\s+\S*$/) {
list( getBuildFiles($word) );
} else {
list( restrict( $word, getTargets() ));
}
exit(0);
sub list {
for (@_) {
print "$_\n";
}
}
sub restrict {
my ($word, @completions) = @_;
grep( /^\Q$word\E/, @completions );
}
sub getArguments {
qw(-buildfile -debug -emacs -f -find -help -listener -logfile
-logger -projecthelp -quiet -verbose -version);
}
sub getBuildFiles {
my ($word) = @_;
grep( /\.xml$/, glob( "$word*" ));
}
sub getTargets {
# Look for build-file
my $buildFile = 'build.xml';
if ($cmdLine =~ /-(f|buildfile)\s+(\S+)/) {
$buildFile = $2;
}
return () unless (-f $buildFile);
# Run "ant -projecthelp" to list targets. Keep a cache of results in a
# cache-file.
my $cacheFile = $buildFile;
$cacheFile =~ s|(.*/)?(.*)|${1}.ant-targets-${2}|;
if ((!-e $cacheFile) || (-z $cacheFile) || (-M $buildFile) < (-M $cacheFile)) {
open( CACHE, '>'.$cacheFile ) || die "can\'t write $cacheFile: $!\n";
open( HELP, "$antCmd -projecthelp -f '$buildFile'|" ) || return();
my %targets;
while( <HELP> ) {
if (/^\s+(\S+)/) {
$targets{$1}++;
}
}
my @targets = sort keys %targets;
for (@targets) { print CACHE "$_\n"; }
return @targets;
}
# Read the target-cache
open( CACHE, $cacheFile ) || die "can\'t read $cacheFile: $!\n";
my @targets;
while (<CACHE>) {
chop;
s/\r$//; # for Cygwin
push( @targets, $_ );
}
close( CACHE );
@targets;
}