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#*************************************************************************
#
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# Copyright 2000, 2010 Oracle and/or its affiliates.
#
# OpenOffice.org - a multi-platform office productivity suite
#
# This file is part of OpenOffice.org.
#
# OpenOffice.org is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# only, as published by the Free Software Foundation.
#
# OpenOffice.org 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 Lesser General Public License version 3 for more details
# (a copy is included in the LICENSE file that accompanied this code).
#
# You should have received a copy of the GNU Lesser General Public License
# version 3 along with OpenOffice.org. If not, see
# <http://www.openoffice.org/license.html>
# for a copy of the LGPLv3 License.
#
#*************************************************************************
#*************************************************************************
#
# RepositoryHelper - Perl for working with repositories and underlying SCM
#
# usage: see below
#
#*************************************************************************
package RepositoryHelper;
use strict;
use Carp;
use Cwd qw (cwd);
use File::Basename;
#use File::Temp qw(tmpnam);
my $debug = 0;
##### profiling #####
##### ctor #####
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $initial_directory = shift;
if ($initial_directory) {
$initial_directory = Cwd::realpath($initial_directory);
} else {
if ( defined $ENV{PWD} ) {
$initial_directory = $ENV{PWD};
} elsif (defined $ENV{_cwd}) {
$initial_directory = $ENV{_cwd};
} else {
$initial_directory = cwd();
};
};
my $self = {};
$self->{INITIAL_DIRECTORY} = $initial_directory;
$self->{REPOSITORY_ROOT} = undef;
$self->{REPOSITORY_NAME} = undef;
$self->{SCM_NAME} = undef;
detect_repository($self);
bless($self, $class);
return $self;
}
##### methods #####
sub get_repository_root
{
my $self = shift;
return $self->{REPOSITORY_ROOT};
}
sub get_initial_directory
{
my $self = shift;
return $self->{INITIAL_DIRECTORY};
}
sub get_scm_name
{
my $self = shift;
return$self->{SCM_NAME};
}
##### private methods #####
sub search_for_hg {
my $self = shift;
my $hg_root;
my $scm_name = 'hg';
if (open(COMMAND, "$scm_name root 2>&1 |")) {
foreach (<COMMAND>) {
next if (/^Not trusting file/);
chomp;
$hg_root = $_;
last;
};
close COMMAND;
chomp $hg_root;
if ($hg_root !~ /There is no Mercurial repository here/) {
$self->{REPOSITORY_ROOT} = $hg_root;
$self->{SCM_NAME} = $scm_name;
return 1;
};
};
return 0;
};
sub search_via_build_lst {
my $self = shift;
# my @possible_build_lists = ('build.lst', 'build.xlist'); # build lists names
my @possible_build_lists = ('build.lst'); # build lists names
my $previous_dir = '';
my $rep_root_candidate = $self->{INITIAL_DIRECTORY};
do {
foreach (@possible_build_lists) {
my $test_file;
if ($rep_root_candidate eq '/') {
$test_file = '/prj/' . $_;
} else {
$test_file = $rep_root_candidate . '/prj/' . $_;
};
if (-e $test_file) {
$self->{REPOSITORY_ROOT} = File::Basename::dirname($rep_root_candidate);
return 1;
};
};
$previous_dir = $rep_root_candidate;
$rep_root_candidate = File::Basename::dirname(Cwd::realpath($rep_root_candidate));
return 0 if ((!$rep_root_candidate) || ($rep_root_candidate eq $previous_dir));
}
while (chdir "$rep_root_candidate");
};
sub detect_repository {
my $self = shift;
return if (search_via_build_lst($self));
chdir $self->{INITIAL_DIRECTORY};
return if (search_for_hg($self));
croak('Cannot determine source directory/repository for ' . $self->{INITIAL_DIRECTORY});
};
##### finish #####
1; # needed by use or require
__END__
=head1 NAME
RepositoryHelper - Perl module for working with repositories and underlying SCM
=head1 SYNOPSIS
# example that will analyze sources and return the source root directory
use RepositoryHelper;
# Create a new instance:
$a = RepositoryHelper->new();
# Get repositories for the actual workspace:
$a->get_repository_root();
=head1 DESCRIPTION
RepositoryHelper is a perlPerl module for working with repositories and underlying SCM
in the database.
Methods:
RepositoryHelper::new()
Creates a new instance of RepositoryHelper. Can be initialized by: some path which likely to belong to a repository, default - empty, the current dir will be taken.
RepositoryHelper::get_repository_root()
Returns the repository root, retrieved by SCM methods or on educated guess...
RepositoryHelper::get_initial_directory()
Returns full path to the initialistion directory.
=head2 EXPORT
RepositoryHelper::new()
RepositoryHelper::get_repository_root()
RepositoryHelper::get_scm_name()
RepositoryHelper::get_initial_directory()
=head1 AUTHOR
Vladimir Glazunov, vg@openoffice.org
=head1 SEE ALSO
perl(1).
=cut
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