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      1 #!/usr/bin/perl
      2 #
      3 #  Licensed to the Apache Software Foundation (ASF) under one or more
      4 #  contributor license agreements.  See the NOTICE file distributed with
      5 #  this work for additional information regarding copyright ownership.
      6 #  The ASF licenses this file to You under the Apache License, Version 2.0
      7 #  (the "License"); you may not use this file except in compliance with
      8 #  the License.  You may obtain a copy of the License at
      9 #
     10 #      http://www.apache.org/licenses/LICENSE-2.0
     11 #
     12 #  Unless required by applicable law or agreed to in writing, software
     13 #  distributed under the License is distributed on an "AS IS" BASIS,
     14 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 #  See the License for the specific language governing permissions and
     16 #  limitations under the License.
     17 #
     18 # A script to allow Bash or Z-Shell to complete an Ant command-line.  
     19 #
     20 # To install for Bash 2.0 or better, add the following to ~/.bashrc:
     21 # 
     22 #     $ complete -C complete-ant-cmd ant build.sh
     23 #
     24 # To install for Z-Shell 2.5 or better, add the following to ~/.zshrc:
     25 #
     26 #     function ant_complete () {
     27 #         local args_line args
     28 #         read -l args_line
     29 #         set -A args $args_line
     30 #         set -A reply $(COMP_LINE=$args_line complete-ant-cmd ${args[1]} $1)
     31 #     }
     32 #     compctl -K ant_complete ant build.sh
     33 #     
     34 # @author Mike Williams <mikew (at] cortexebusiness.com.au>
     35 
     36 my $cmdLine = $ENV{'COMP_LINE'};
     37 my $antCmd = $ARGV[0];
     38 my $word = $ARGV[1];
     39 
     40 my @completions;
     41 if ($word =~ /^-/) {
     42     list( restrict( $word, getArguments() ));
     43 } elsif ($cmdLine =~ /-(f|buildfile)\s+\S*$/) {
     44     list( getBuildFiles($word) );
     45 } else {
     46     list( restrict( $word, getTargets() ));
     47 }
     48 
     49 exit(0);
     50 
     51 sub list {
     52     for (@_) {
     53         print "$_\n";
     54     }
     55 }
     56 
     57 sub restrict {
     58     my ($word, @completions) = @_;
     59     grep( /^\Q$word\E/, @completions );
     60 }
     61 
     62 sub getArguments {
     63     qw(-buildfile -debug -emacs -f -find -help -listener -logfile 
     64        -logger -projecthelp -quiet -verbose -version); 
     65 }
     66 
     67 
     68 sub getBuildFiles {
     69     my ($word) = @_;
     70     grep( /\.xml$/, glob( "$word*" ));
     71 }
     72 
     73 sub getTargets {
     74 
     75     # Look for build-file
     76     my $buildFile = 'build.xml';
     77     if ($cmdLine =~ /-(f|buildfile)\s+(\S+)/) {
     78         $buildFile = $2;
     79     }
     80     return () unless (-f $buildFile);
     81 
     82     # Run "ant -projecthelp" to list targets.  Keep a cache of results in a
     83     # cache-file.
     84     my $cacheFile = $buildFile;
     85     $cacheFile =~ s|(.*/)?(.*)|${1}.ant-targets-${2}|;
     86     if ((!-e $cacheFile) || (-M $buildFile) < (-M $cacheFile)) {
     87         open( CACHE, '>'.$cacheFile ) || die "can\'t write $cacheFile: $!\n";
     88         open( HELP, "$antCmd -projecthelp -f '$buildFile'|" ) || return(); 
     89         my %targets;
     90         while( <HELP> ) {
     91             if (/^\s+(\S+)/) {
     92                 $targets{$1}++;
     93             }
     94         }
     95         my @targets = sort keys %targets;
     96         for (@targets) { print CACHE "$_\n"; }
     97         return @targets;
     98     }
     99     
    100     # Read the target-cache
    101     open( CACHE, $cacheFile ) || die "can\'t read $cacheFile: $!\n";
    102     my @targets;
    103     while (<CACHE>) {
    104         chop;
    105         s/\r$//;  # for Cygwin
    106         push( @targets, $_ );
    107     }
    108     close( CACHE );
    109     @targets;
    110 
    111 }
    112 
    113 
    114 
    115