gecko-dev/tools/trees.pl

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#!/usr/bin/env perl
# The contents of this file are subject to the Netscape Public
# License Version 1.1 (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.mozilla.org/NPL/
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#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
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#
# The Original Code is this file as it was released upon February 25, 1999.
#
# The Initial Developer of the Original Code is Netscape Communications
# Corporation. Portions created by Netscape are
# Copyright (C) 1999 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s): Stephen Lamm <slamm@netscape.com>
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#
# trees.pl - Navigate mozilla source trees.
# Depends on mozconfig.sh to find object directory.
# Use http://cvs-mirror.mozilla.org/webtools/build/config.cgi
# to create a mozconfig.sh file.
#
# Be sure to define a ~/.moztrees file (Run 'trees.pl -c' for an example).
#
require 'getopts.pl';
sub usage
{
my ($progname) = $0 =~ /([^\/]+)$/;
die "Usage: $progname [options] [<tree_name>] [<dir> <dir>...]
Getting Started:
1. trees.pl -e > ~/.moztrees
2. Edit ~/.moztrees for your setup.
3. trees.pl -t (tcsh users), or trees.pl -b (bash users)
4. Save output of step #3 into ~/.cshrc or ~/.bash_profile
Options:
-l List the available trees.
-o Move to the object directory.
-s Move to the source directory.
-h Print this usage message.
<tree_name> Directory name below mozilla (e.g. gecko/mozilla)
You only need to specify tree name when switching trees.
<dir> An alias or sub directory list.
Use '/' to move to the root of the tree.
Examples (with 'trees.pl' wrapped in 'moz' alias or function):
moz gecko cmd/xfe - cd to mozilla/cmd/xfe in gecko tree
moz editor public - cd to mozilla/editor/public
moz / - cd to mozilla/
moz gecko2 - cd to tree 'gecko2' (subdir is preserved)
";
}
&usage if !&Getopts('behlost');
&usage if $opt_h;
# Options for Getting Started
#
if ($opt_e)
{
print while <DATA>;
exit;
}
if ($opt_b)
{
# Print function for bash users
print q(function moz()
{
set -- `trees.pl $@`
if [ $# -eq 1 ]; then
cd $1
fi
}
);
exit;
}
if ($opt_t)
{
# Print alias for tcsh users
print q(alias moz 'set _moz=`trees.pl \!*`; if ("$_moz" != "") cd $_moz; endif; unset _moz'
);
exit;
}
######################################################################
# begin defines
$root_dir = "mozilla";
$test_file = "client.mk"; # Some file to verify the existence of a tree.
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if (not -f "$ENV{HOME}/.moztrees")
{
die "No ~/.moztrees file. Run 'trees.pl -e' for example, or 'trees.pl -h' for help.\n";
}
push @INC, $ENV{HOME};
require '.moztrees';
# end defines
######################################################################
# begin main
# Option '-l': Print a list of trees.
#
if ($opt_l)
{
&print_tree_list(@tree_parent_dirs);
exit;
}
# Build regex pattern to match root directory.
$root_pat = "(?:\Q$root_dir\E)";
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# Make 'moz /' goto '$tree_dir/mozilla'.
$dir_aliases{'/'} = '/';
# Get the current directory.
chop($pwd = `pwd`) unless defined($pwd = $ENV{PWD});
# Check if current directory to is a tree path.
#
($tree_dir, $tree_subdir, $topsrcdir, $objdir) = &parse_tree_path($pwd);
# Check for tree name as first argument.
#
if ($#ARGV >= 0)
{
$dir = &tree_lookup($ARGV[0]);
if ($dir ne '')
{
$tree_dir = $dir;
shift @ARGV;
} }
if ($tree_dir eq '')
{
warn "No tree found.\n";
&usage;
}
# Move between source and object directories
#
if ($opt_s)
{
$tree_dir = $topsrcdir;
}
if ($opt_o)
{
$objdir = find_objdir($tree_dir) if $objdir eq '';
$tree_dir = $objdir;
}
# Finally, check for directories
#
if ($#ARGV >= 0)
{
($tree_dir, $tree_subdir) = &dir_lookup($tree_dir, $tree_subdir, @ARGV);
}
$tree_dir =~ s|^(\S):|//$1|; # For bash on Windows, change "C:" to "//C"
print "$tree_dir/$tree_subdir";
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# end main
######################################################################
sub print_tree_list
{
# Build a list of the trees
foreach $parent_dir (@tree_parent_dirs)
{
opendir(DIRHANDLE, $parent_dir) || next;
foreach $entry (readdir(DIRHANDLE))
{
next if $entry eq '.' || $entry eq '..' || $entry eq 'CVS';
if (-d "$parent_dir/$entry/$root_dir")
{
$trees{$entry} = "$parent_dir/$entry/$root_dir";
last; # Skip the inner loop
} } }
@treelist = ();
$maxlen = 0;
my ($tree_name, $tree_dir, $max_name_length);
while (($tree_name, $tree_dir) = each %trees)
{
if ($max_name_length < length($tree_name))
{
$max_name_length = length($tree_name);
}
push (@treelist, "$tree_dir=$tree_name");
}
foreach (sort @treelist)
{
($dir, $name) = split('=');
print stderr sprintf("%-${max_name_length}s %s\n", $name, $dir);
} }
# Check a path to see if it is in a source tree.
# Parses the path and returns the tree root and subdir.
#
sub parse_tree_path
{
my ($pwd) = @_;
my ($tree_dir) = '';
my ($tree_subdir) = '';
# Adjust cygwin path to one perl understands
$pwd =~ s@^//(\S)/@$1:/@;
if ($pwd =~ m@^(.*/$root_pat)(/.*)?$@ and -e "$1/$test_file")
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{
$topsrcdir = $1;
$tree_dir = $topsrcdir;
$tree_subdir = $2;
$objdir = find_objdir($topsrcdir);
if ($pwd =~ m@^$objdir(/.*)?$@)
{
$tree_dir = $objdir;
$tree_subdir = $1;
}
} elsif (-d "$pwd/$root_dir" and -e "$pwd/$root_dir/$test_file")
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{
$tree_dir = "$pwd/$root_dir";
$tree_subdir = "..";
} elsif ($pwd =~ m@^((.*)/obj-[^/]+)(/.*)?$@)
{
if (-d "$2/$root_dir")
{
$topsrcdir = $1;
$objdir = $2;
$tree_dir = $objdir;
$tree_subdir = $3;
} }
$tree_subdir = '/' if $tree_subdir eq '';
return ($tree_dir, $tree_subdir, $topsrcdir, $objdir);
}
# Check a name against the possible list of trees
#
sub tree_lookup
{
my $arg = $_[0];
my ($dir, $root);
return $trees{$arg} if defined($trees{$arg});
foreach $parent_dir (@tree_parent_dirs)
{
return "$parent_dir/$arg/$root_dir" if -d "$parent_dir/$arg/$root_dir";
}
return '';
}
sub dir_lookup
{
my ($tree_dir, $tree_subdir, $arg, @args) = @_;
return $tree_subdir if not $arg;
if (defined($dir_aliases{$arg}))
{
($dir1, $dir2) = split(/:/, $dir_aliases{$arg});
if ($dir1 eq 'objdir')
{
$objdir = find_objdir($tree_dir) if $objdir eq '';
$tree_dir = $objdir;
$tree_subdir = $dir2;
} elsif ($dir1 eq 'topsrcdir')
{
$tree_dir = $topsrcdir;
$tree_subdir = $dir2;
} else
{
$tree_subdir = $dir1;
}
}
else
{
# Check for subdirectory of 'search' directory
my ($found_dir) = 0;
foreach $dir ('',@search_dirs,$tree_subdir)
{
if (-d "$tree_dir/$dir/$arg")
{
$tree_subdir = "$dir/$arg";
$found_dir = 1;
last;
} }
die "Directory not found: $arg\n" if !$found_dir;
}
foreach $arg (@args)
{
# Subdirectory of current path
if (-d "$tree_dir/$tree_subdir/$arg")
{
$tree_subdir = "$tree_subdir/$arg";
}
else
{
die "Directory not found: $tree_dir/$tree_subdir/$arg\n";
} }
$tree_subdir =~ s@^/+(.+)@$1@;
return ($tree_dir, $tree_subdir);
}
# The only way to find the object directory is
# to find it in '.mozconfig'.
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sub find_objdir {
my $topsrcdir = $_[0];
my $objdir = '';
my $home = $ENV{HOME};
my $mozconfig = '';
foreach $config ("$ENV{MOZCONFIG}","$ENV{MOZ_MYCONFIG}",
"$topsrcdir/.mozconfig",
"$topsrcdir/mozconfig", "topsrcdir/mozconfig.sh",
"$home/.mozconfig","$home/.mozconfig.sh") {
next if $config eq '';
if (-f $config) {
$mozconfig = $config;
last;
} }
$objdir_script = qq{
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# sh
MOZCONFIG=$mozconfig
TOPSRCDIR=$topsrcdir
}.q{
ac_add_options() { :; }
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mk_add_options() {
for _opt
do
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case $_opt in
MOZ_OBJDIR=*) _objdir=`expr "$_opt" : "MOZ_OBJDIR=\(.*\)"` ;;
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esac
done
}
. $MOZCONFIG
echo $_objdir
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};
if ($mozconfig ne '') {
$objdir = `$objdir_script`;
chomp($objdir);
}
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if ($objdir eq '')
{
$objdir = $topsrcdir;
} else
{
$objdir =~ s/\@TOPSRCDIR\@/$topsrcdir/;
if ($objdir =~ /\@CONFIG_GUESS\@/)
{
if (not defined($config_guess = $ENV{MOZ_CONFIG_GUESS})) {
$config_guess = `$topsrcdir/build/autoconf/config.guess`;
chomp($config_guess);
}
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$objdir =~ s/\@CONFIG_GUESS\@/$config_guess/;
} }
return $objdir;
}
# end 'trees'
######################################################################
__END__
#! perl
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# .moztrees - Defines the following perl variables for 'trees.pl' script,
#
# @tree_parent_dirs - Where to look for source trees.
# %dir_aliases - Aliases for common paths.
# @search_dirs - Additional directories to search for names.
#
# @tree_parent_dirs - Where to look for source trees.
#
# The script will look for
#
# @tree_parent_dirs/<tree_name>/mozilla
#
# where <tree_name> is any directory you put in <tree_parent_dirs>.
#
# For example, if you have the following source trees,
#
# /h/dance/export/slamm/raptor/mozilla
# /h/dance/export/slamm/raptor2/mozilla
#
# then you would add to the list,
#
# /h/dance/export/slamm (Note: two directories stripped).
#
# and you would use 'raptor' and 'raptor2' as the names of your trees,
#
# moz raptor2 webshell
#
@tree_parent_dirs =
(
'/export/slamm',
'/h/worms/export3/slamm'
);
# %dir_aliases - Directory aliases
#
# %dir_aliases = ('alias', 'path' [,'alias', 'path'...]);
#
# Possible 'path' settings:
# <path_relative_to_mozilla>
# topsrcdir:<path_relative_to_topsrcdir>
# objdir:<path_relative_to_objdir>
#
%dir_aliases =
(
'bin', 'objdir:dist/bin',
'viewer', 'webshell/tests/viewer'
);
# @search_dirs - 'moz' will search these directories if no directory
# aliases match.
#
# For example, if 'modules' is listed, then
#
# moz libpref
#
# would take you to mozilla/modules/libpref.
#
# (Give paths relative to mozilla.)
@search_dirs =
(
'lib',
'modules'
);
# Need to end with a true value
1;