qt5/init-repository

#!/usr/bin/perl
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## $QT_END_LICENSE$
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#############################################################################

use strict;
use warnings;

my $force = 0;
my $quiet = 0;
my $nokia_developer = 0;
my $no_webkit = 0;
my $no_update = 0;
my $ignore_submodules = 0;
my $alternates = "";
my $detach_alternates = 0;
my $mirror_url = "";
my $mirror_webkit_url = "";

my $protocol = "";
my %protocols = (
    'internal' => 'git://scm.dev.nokia.troll.no',
    'ssh' => 'git@scm.dev.nokia.troll.no',
    'http' => 'http://git.gitorious.org'
);

sub system_v
{
    if (!$quiet) {
        print "+ ";
        print @_;
        print "\n";
    }
    return system(@_);
}

sub printUsage
{
    print <<EOU;
$0 <options>
  -f               Force initialization.
  -q               Quiet operation. Will exit cleanly if repository is already
                   initialized.

Module options
  -no-webkit       Skip webkit and webkit examples submodules.
  -no-update       Skip the 'git submodule update' command.
  -ignore-submodules
                   Ignores submodules when doing operations on qt5 repo, such
                   as 'pull', 'fetch', 'diff' etc. Use
                   --ignore-submodules=none to override, when needed

Repository options:
  -nokia-developer Switch to internal Nokia URLs.
  -brisbane        Switch to internal Nokia URLs, and setup the brisbane
                   mirrors. (Uses the -mirror and -mirror-webkit options.)
  -ssh             Use SSH protocol, for restrictive firewalls. Note that this
                   requires a user account with an uploaded SSH key on all
                   servers used. (Implies -nokia-developer!)
  -http            Use HTTP protocol, for restrictive firewalls. Note that this
                   only works with the external Gitorious server.
  -alternates=<path to other Qt5 repo>
                   Adds alternates for each submodule to another full qt5
                   checkout. This makes this qt5 checkout very small, as it
                   will use the object store of the alternates before unique
                   objects are stored in its own object store.
                   PS: This option does not work with -no-update!
                   PSS:This will make this repo dependent on the alternate!
                       The dependency can be broken by running 'git repack -a'
                       in each submodule, where required.
  -copy-objects    Copies all objects from the alternates into the individual
                   repos, to ensure that the repositories are independent from
                   the source used as a reference for cloning.
  -mirror=<url>    Uses <url> as the base URL for cloning submodules.
                     -mirror=user\@machine/foo/bar
                   while for example clone qtbase from
                     user\@machine/foo/bar/qtbase.git
  -mirror-webkit=<url>
                   Uses <url> as the URL for cloning webkit.
EOU
}

while (@ARGV) {
    my $arg = $ARGV[0];
    if ($arg eq "-f") {
        $force = 1;
    } elsif ($arg eq "-q") {
        $quiet = 1;
    } elsif ($arg eq "-brisbane" || $arg eq "-brisbane-nokia-developer") {
        $nokia_developer = 1;
        $mirror_url = "git://bq-git.apac.nokia.com/qtsoftware/qt/";
        $mirror_webkit_url = "git://bq-git.apac.nokia.com/qtsoftware/research/gitorious-org-webkit-qtwebkit-mirror.git";
    } elsif ($arg eq "-nokia-developer") {
        $nokia_developer = 1;
        $protocol = "internal";
    } elsif ($arg eq "-ssh" || $arg eq "-ssh-protocol") {
        $protocol = "ssh";
    } elsif ($arg eq "-http") {
        if ($nokia_developer) {
            print("*** Ignoring use of HTTP protocol, as it's only usable with external server\n");
        } else {
            $protocol = "http";
        }
    } elsif ($arg eq "/?" || $arg eq "-?" || $arg eq "/h" || $arg eq "-h" || $arg eq "--help") {
        printUsage();
        exit 0;
    } elsif ($arg eq "-no-webkit") {
        $no_webkit = 1;
    } elsif ($arg eq "-no-update") {
        $no_update = 1;
    } elsif ($arg eq "-ignore-submodules") {
        $ignore_submodules = 1;
    } elsif ($arg =~ /-alternates=(.*)/) {
        $alternates = "$1";
    } elsif ($arg eq "-copy-objects") {
        $detach_alternates = 1;
    } elsif ($arg =~ /-mirror=(.*)/) {
        $mirror_url = "$1/";
        $mirror_url =~ s,\/\/+$,/,;
    } elsif ($arg =~ /-mirror-webkit=(.*)/) {
        $mirror_webkit_url = "$1"
    } else {
        print("*** Unknown option: $arg\n");
        printUsage();
        exit(1);
    }
    shift;
}

if (`git config --get submodule.qtbase.url`) {
    if ($force) {
        my @configresult = `git config -l`;
        foreach (@configresult) {
            if (/(submodule\.[^.=]+)\.url=.*/) {
                system_v("git config --remove-section $1");
            }
        }
    } else {
        exit 0 if ($quiet);
        print("Will not reinitialize already initialized repository (use -f to force)!\n");
        exit 1;
    }
}

my $init_args = "";
$init_args = "-q" if ($quiet);
system_v("git submodule init $init_args");
if ($no_webkit){
    system_v("git config --remove submodule.qtwebkit");
    system_v("git config --remove submodule.qtwebkit-examples-and-demos");
}

my @configresult = `git config -l`;
my $proto = $protocols{$protocol};
foreach (@configresult) {
    if (/(submodule\.[^.=]+\.url)=(.*)/) {
        my $key = $1;
        my $value = $2;
        if ($protocol) {
            # WebKit is special, and has only external link.
            if ($key ne "submodule.qtwebkit.url") {
                # qt-labs projects are still hosted under qt internally.
                $value =~ s,^git://gitorious\.org/qt-labs/,$proto/qt/, if ($protocol ne "http") ;
                $value =~ s,^git://gitorious\.org/,$proto/,;
            }
        }
        system_v("git config \"$key\" \"$value\"");
        if ($ignore_submodules) {
            $key =~ s,\.url,.ignore,;
            system_v("git config \"$key\" \"all\"");
        }
    }
}

# manually clone each repo here, so we can easily use reference repos, mirrors and add all staging
# repos
if (!$no_update) {
    @configresult = `git config -l`;
    foreach (@configresult) {
        if(/submodule\.([^.=]+)\.url=(.*)/){
            my $repo = $1;
            my $url = $2;
            my $ref = "";
            if ($alternates) {
                if (-d "$alternates/$repo") {
                    $ref = "--reference $alternates/$repo";
                } else {
                    print(" *** $alternates/$repo not found, ignoring alternate for this submodule\n");
                }
            }
            if (($mirror_url && $repo ne "qtwebkit") || ($mirror_webkit_url && $repo eq "qtwebkit") {
                my $mirror = $mirror_url.$repo;
                $mirror .= ".git" unless (-d $mirror); # Support local disk mirror
                $mirror = $mirror_webkit_url if ($repo eq "qtwebkit");
                system_v("git clone $ref $mirror $repo");
                chdir($repo) or die "'cd $repo' failed...";
                system_v("git config remote.origin.url $url");
                system_v("git remote add mirror $mirror");
                chdir("..") or die "'cd ..' failed..";
            } else {
                system_v("git clone $ref $url $repo");
            }
            if ($detach_alternates) {
                chdir($repo) or die "'cd $repo' failed...";
                system_v("git repack -a");
                unlink(".git/objects/info/alternates");
                chdir("..") or die "'cd ..' failed..";
            }
        }
    }
}

unless ($no_update){
    system_v("git submodule update");
}