1971e8075d
Task-number: QTBUG-120030 Change-Id: Iae2f3e25814321729c213503db2ac8a3a39cf2d9 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io> Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
654 lines
21 KiB
Perl
Executable File
654 lines
21 KiB
Perl
Executable File
#!/usr/bin/env perl
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# Copyright (C) 2015 The Qt Company Ltd.
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# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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use v5.8;
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use strict;
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use warnings;
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package Qt::InitRepository;
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sub printUsage($)
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{
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my ($ex) = @_;
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print <<EOF ;
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Usage:
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./init-repository [options]
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This script may be run after an initial `git clone' of Qt5 in order to
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check out all submodules. It fetches them from canonical URLs inferred
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from the clone's origin.
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Options:
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Global options:
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--force, -f
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Force initialization (even if the submodules are already checked
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out).
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--force-hooks
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Force initialization of hooks (even if there are already hooks in
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checked out submodules).
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--quiet, -q
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Be quiet. Will exit cleanly if the repository is already
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initialized.
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Module options:
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--module-subset=<module1>,<module2>...
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Only initialize the specified subset of modules given as the
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argument. Specified modules must already exist in .gitmodules. The
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string "all" results in cloning all known modules. The strings
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"essential", "addon", "preview", "deprecated", "obsolete",
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"additionalLibrary", and "ignore" refer to classes of modules
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identified by "status=" lines in the .gitmodules file.
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You can use "default" in the subset as a short-hand for
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"essential,addon,preview,deprecated", which corresponds to the set of
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maintained modules included in standard Qt releases; this is also the
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default module subset when this option is not given. Entries
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may be prefixed with a dash to exclude them from a bigger
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set, e.g. "all,-ignore".
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--no-update
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Skip the `git submodule update' command.
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--no-fetch
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Skip the `git fetch' commands. Implied by --no-update.
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--branch
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Instead of checking out specific SHA1s, check out the submodule
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branches that correspond with the current supermodule commit. By
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default, this option will cause local commits in the submodules to
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be rebased. With --no-update, the branches will be checked out, but
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their heads will not move.
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--ignore-submodules
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Set git config to ignore submodules by default when doing operations
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on the qt5 repo, such as `pull', `fetch', `diff' etc.
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After using this option, pass `--ignore-submodules=none' to git to
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override it as needed.
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Repository options:
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--berlin
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Switch to internal URLs and make use of the Berlin git mirrors.
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(Implies `--mirror').
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--oslo
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Switch to internal URLs and make use of the Oslo git mirrors.
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(Implies `--mirror').
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--codereview-username <Gerrit/JIRA username>
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Specify the user name for the (potentially) writable `gerrit' remote
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for each module, for use with the Gerrit code review tool.
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If this option is omitted, the gerrit remote is created without a
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username and port number, and thus relies on a correct SSH
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configuration.
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--alternates <path to other Qt5 repo>
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Adds alternates for each submodule to another full qt5 checkout.
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This makes this qt5 checkout very small, as it will use the object
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store of the alternates before unique objects are stored in its own
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object store.
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This option has no effect when using `--no-update'.
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NOTE: This will make this repo dependent on the alternate, which is
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potentially dangerous! The dependency can be broken by also using
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the `--copy-objects' option, or by running "git repack -a" in each
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submodule, where required. Please read the note about the `--shared'
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option in the documentation of `git clone' for more information.
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--copy-objects
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When `--alternates' is used, automatically do a "git repack -a" in
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each submodule after cloning, to ensure that the repositories are
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independent from the source used as a reference for cloning.
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Note that this negates the disk usage benefits gained from the use
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of `--alternates'.
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--mirror <url-base>
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Uses <url-base> as the base URL for submodule git mirrors.
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For example:
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--mirror user\@machine:/foo/bar/qt/
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...will use the following as a mirror for qtbase:
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user\@machine:/foo/bar/qt/qtbase.git
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The mirror is permitted to contain a subset of the submodules; any
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missing modules will fall back to the canonical URLs.
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EOF
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exit($ex);
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}
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use Carp qw( confess );
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use Cwd qw( getcwd abs_path );
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use English qw( -no_match_vars );
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use File::Spec::Functions qw ( rel2abs );
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use Getopt::Long qw( GetOptions );
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my $script_path = abs_path($0);
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$script_path =~ s,[/\\][^/\\]+$,,;
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my $GERRIT_SSH_BASE
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= 'ssh://@USER@codereview.qt-project.org@PORT@/qt/';
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my $BER_MIRROR_URL_BASE
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= 'git://hegel/qt/';
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my $OSLO_MIRROR_URL_BASE
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= 'git://qilin/qt/';
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sub new
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{
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my ($class, @arguments) = @_;
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my $self = {};
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bless $self, $class;
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$self->parse_arguments(@arguments);
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return $self;
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}
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# Like `system', but possibly log the command, and die on non-zero exit code
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sub exe
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{
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my ($self, @cmd) = @_;
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if (!$self->{quiet}) {
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print "+ @cmd\n";
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}
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if (system(@cmd) != 0) {
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confess "@cmd exited with status $CHILD_ERROR";
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}
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return;
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}
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sub parse_arguments
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{
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my ($self) = @_;
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%{$self} = (%{$self},
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'alternates' => "",
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'branch' => 0,
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'codereview-username' => "",
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'detach-alternates' => 0 ,
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'force' => 0 ,
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'force-hooks' => 0 ,
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'ignore-submodules' => 0 ,
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'mirror-url' => "",
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'update' => 1 ,
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'fetch' => 1 ,
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'module-subset' => "default",
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);
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GetOptions(
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'alternates=s' => \$self->{qw{ alternates }},
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'branch' => \$self->{qw{ branch }},
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'codereview-username=s' => \$self->{qw{ codereview-username }},
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'copy-objects' => \$self->{qw{ detach-alternates }},
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'force|f' => \$self->{qw{ force }},
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'force-hooks' => \$self->{qw{ force-hooks }},
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'ignore-submodules' => \$self->{qw{ ignore-submodules }},
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'mirror=s' => \$self->{qw{ mirror-url }},
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'quiet' => \$self->{qw{ quiet }},
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'update!' => \$self->{qw{ update }},
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'fetch!' => \$self->{qw{ fetch }},
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'module-subset=s' => \$self->{qw{ module-subset }},
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'help|?' => sub { printUsage(1); },
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'berlin' => sub {
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$self->{'mirror-url'} = $BER_MIRROR_URL_BASE;
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},
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'oslo' => sub {
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$self->{'mirror-url'} = $OSLO_MIRROR_URL_BASE;
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},
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) || printUsage(2);
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@ARGV && printUsage(2);
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# Replace any double trailing slashes from end of mirror
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$self->{'mirror-url'} =~ s{//+$}{/};
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$self->{'module-subset'} =~ s/\bdefault\b/preview,essential,addon,deprecated/;
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$self->{'module-subset'} = [ split(/,/, $self->{'module-subset'}) ];
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$self->{'fetch'} = 0 if (!$self->{'update'});
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return;
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}
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sub check_if_already_initialized
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{
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my ($self) = @_;
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# We consider the repo as `initialized' if submodule.qtbase.url is set
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if (qx(git config --get submodule.qtbase.url)) {
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if (!$self->{force}) {
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exit 0 if ($self->{quiet});
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print "Will not reinitialize already initialized repository (use -f to force)!\n";
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exit 1;
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}
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}
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return;
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}
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sub git_submodule_init
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{
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my ($self, @init_args) = @_;
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if ($self->{quiet}) {
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unshift @init_args, '--quiet';
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}
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$self->exe('git', 'submodule', 'init', @init_args);
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my $template = getcwd()."/.commit-template";
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if (-e $template) {
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$self->exe('git', 'config', 'commit.template', $template);
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}
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return;
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}
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use constant {
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STS_PREVIEW => 1,
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STS_ESSENTIAL => 2,
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STS_ADDON => 3,
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STS_DEPRECATED => 4,
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STS_OBSOLETE => 5,
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STS_ADDITIONAL => 6
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};
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sub has_url_scheme
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{
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my ($url) = @_;
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return $url =~ "^[a-z][a-z0-9+\-.]*://";
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}
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sub git_clone_all_submodules
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{
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my ($self, $my_repo_base, $co_branch, $alternates, @subset) = @_;
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my %subdirs = ();
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my %subbranches = ();
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my %subbases = ();
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my %subinits = ();
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my @submodconfig = qx(git config -l -f .gitmodules);
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foreach my $line (@submodconfig) {
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# Example line: submodule.qtqa.url=../qtqa.git
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next if ($line !~ /^submodule\.([^.=]+)\.([^.=]+)=(.*)$/);
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if ($2 eq "path") {
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$subdirs{$1} = $3;
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} elsif ($2 eq "branch") {
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$subbranches{$1} = $3;
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} elsif ($2 eq "url") {
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my ($mod, $base) = ($1, $3);
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if (!has_url_scheme($base)) {
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$base = $my_repo_base.'/'.$base;
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}
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while ($base =~ s,(?!\.\./)[^/]+/\.\./,,g) {}
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$subbases{$mod} = $base;
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} elsif ($2 eq "update") {
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push @subset, '-'.$1 if ($3 eq 'none');
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} elsif ($2 eq "status") {
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if ($3 eq "preview") {
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$subinits{$1} = STS_PREVIEW;
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} elsif ($3 eq "essential") {
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$subinits{$1} = STS_ESSENTIAL;
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} elsif ($3 eq "addon") {
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$subinits{$1} = STS_ADDON;
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} elsif ($3 eq "deprecated") {
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$subinits{$1} = STS_DEPRECATED;
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} elsif ($3 eq "obsolete") {
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$subinits{$1} = STS_OBSOLETE;
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} elsif ($3 eq "additionalLibrary") {
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$subinits{$1} = STS_ADDITIONAL;
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} elsif ($3 eq "ignore") {
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delete $subinits{$1};
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} else {
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die("Invalid subrepo status '$3' for '$1'.\n");
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}
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}
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}
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my %include = ();
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foreach my $mod (@subset) {
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my $del = ($mod =~ s/^-//);
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my $fail = 0;
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my @what;
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if ($mod eq "all") {
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@what = keys %subbases;
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} elsif ($mod eq "essential") {
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@what = grep { ($subinits{$_} || 0) eq STS_ESSENTIAL } keys %subbases;
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} elsif ($mod eq "addon") {
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@what = grep { ($subinits{$_} || 0) eq STS_ADDON } keys %subbases;
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} elsif ($mod eq "additionalLibrary") {
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@what = grep { ($subinits{$_} || 0) eq STS_ADDITIONAL } keys %subbases;
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} elsif ($mod eq "preview") {
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@what = grep { ($subinits{$_} || 0) eq STS_PREVIEW } keys %subbases;
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} elsif ($mod eq "deprecated") {
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@what = grep { ($subinits{$_} || 0) eq STS_DEPRECATED } keys %subbases;
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} elsif ($mod eq "obsolete") {
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@what = grep { ($subinits{$_} || 0) eq STS_OBSOLETE } keys %subbases;
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} elsif ($mod eq "ignore") {
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@what = grep { ($subinits{$_} || 0) eq 0 } keys %subbases;
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} elsif (defined($subdirs{$mod})) {
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push @what, $mod;
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} else {
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$fail = 1;
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}
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if ($del) {
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print "Warning: excluding non-existent module '$mod'.\n"
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if ($fail);
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map { delete $include{$_} } @what;
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} else {
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die("Error: module subset names non-existent '$mod'.\n")
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if ($fail);
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map { $include{$_} = 1; } @what;
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}
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}
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my @modules = sort keys %include;
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$self->git_submodule_init(map { $subdirs{$_} } @modules);
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# manually clone each repo here, so we can easily use reference repos, mirrors etc
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my @configresult = qx(git config -l);
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foreach my $line (@configresult) {
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# Example line: submodule.qtqa.url=git://code.qt.io/qt/qtqa.git
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next if ($line !~ /submodule\.([^.=]+)\.url=/);
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my $module = $1;
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if (!defined($include{$module})) {
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$self->exe('git', 'config', '--remove-section', "submodule.$module");
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next;
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}
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if ($self->{'ignore-submodules'}) {
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$self->exe('git', 'config', "submodule.$module.ignore", 'all');
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}
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}
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my $any_bad = 0;
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foreach my $module (@modules) {
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$any_bad = 1
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if ($self->git_stat_one_submodule($subdirs{$module}));
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}
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die("Dirty submodule(s) present; cannot proceed.\n")
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if ($any_bad);
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foreach my $module (@modules) {
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$self->git_clone_one_submodule($subdirs{$module}, $subbases{$module},
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$co_branch && $subbranches{$module}, $alternates);
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}
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if ($co_branch) {
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foreach my $module (@modules) {
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my $branch = $subbranches{$module};
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die("No branch defined for submodule $module.\n") if (!defined($branch));
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my $orig_cwd = getcwd();
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my $module_dir = $subdirs{$module};
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chdir($module_dir) or confess "chdir $module_dir: $OS_ERROR";
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my $br = qx(git rev-parse -q --verify $branch);
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if (!$br) {
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$self->exe('git', 'checkout', '-b', $branch, "origin/$branch");
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} else {
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$self->exe('git', 'checkout', $branch);
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}
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chdir("$orig_cwd") or confess "chdir $orig_cwd: $OS_ERROR";
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}
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}
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if ($self->{update}) {
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my @cmd = ('git', 'submodule', 'update', '--force', '--no-fetch');
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push @cmd, '--remote', '--rebase' if ($co_branch);
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$self->exe(@cmd);
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foreach my $module (@modules) {
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if (-f $module.'/.gitmodules') {
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my $orig_cwd = getcwd();
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chdir($module) or confess "chdir $module: $OS_ERROR";
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$self->git_clone_all_submodules($subbases{$module}, 0, "$alternates/$module", "all");
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chdir("$orig_cwd") or confess "chdir $orig_cwd: $OS_ERROR";
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}
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}
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}
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return;
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}
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sub git_add_remotes
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{
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my ($self, $gerrit_repo_basename) = @_;
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my $gerrit_repo_url = $GERRIT_SSH_BASE;
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# If given a username, make a "verbose" remote.
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# Otherwise, rely on proper SSH configuration.
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if ($self->{'codereview-username'}) {
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$gerrit_repo_url =~ s,\@USER\@,$self->{'codereview-username'}\@,;
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$gerrit_repo_url =~ s,\@PORT\@,:29418,;
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} else {
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$gerrit_repo_url =~ s,\@[^\@]+\@,,g;
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}
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$gerrit_repo_url .= $gerrit_repo_basename;
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$self->exe('git', 'config', 'remote.gerrit.url', $gerrit_repo_url);
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$self->exe('git', 'config', 'remote.gerrit.fetch', '+refs/heads/*:refs/remotes/gerrit/*', '/heads/');
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}
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sub git_stat_one_submodule
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{
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my ($self, $submodule) = @_;
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return 0 if (! -e "$submodule/.git");
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my $orig_cwd = getcwd();
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chdir($submodule) or confess "chdir $submodule: $OS_ERROR";
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my @sts = qx(git status --porcelain --untracked=no --ignore-submodules=all);
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# After a git clone --no-checkout, git status reports all files as
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# staged for deletion, but we still want to update the submodule.
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# It's unlikely that a genuinely dirty index would have _only_ this
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# type of modifications, and it doesn't seem like a horribly big deal
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# to lose them anyway, so ignore them.
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@sts = grep(!/^D /, @sts);
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chdir($orig_cwd) or confess "cd $orig_cwd: $OS_ERROR";
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return 0 if (!@sts);
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print STDERR "$submodule is dirty.\n";
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return -1;
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}
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sub git_clone_one_submodule
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{
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my ($self, $submodule, $repo_basename, $branch, $alternates) = @_;
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my $mirror_url = $self->{ 'mirror-url' };
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my $protocol = $self->{ 'protocol' };
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# `--reference FOO' args for the clone, if any.
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my @reference_args;
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if ($alternates) {
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# alternates is a qt5 repo, so the submodule will be under that.
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if (-e "$alternates/$submodule/.git") {
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@reference_args = ('--reference', "$alternates/$submodule");
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}
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else {
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print " *** $alternates/$submodule not found, ignoring alternate for this submodule\n";
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}
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}
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|
|
|
my $do_clone = (! -e "$submodule/.git");
|
|
|
|
my $url = $repo_basename;
|
|
if (!has_url_scheme($url)) {
|
|
$url = $self->{'base-url'}.$url;
|
|
}
|
|
|
|
my $mirror;
|
|
if (!has_url_scheme($repo_basename) && $mirror_url && ($do_clone || $self->{fetch})) {
|
|
$mirror = $mirror_url.$repo_basename;
|
|
}
|
|
|
|
if ($mirror) {
|
|
# Only use the mirror if it can be reached.
|
|
eval { $self->exe('git', 'ls-remote', $mirror, 'test/if/mirror/exists') };
|
|
if ($@) {
|
|
warn "mirror [$mirror] is not accessible; $url will be used\n";
|
|
undef $mirror;
|
|
}
|
|
}
|
|
|
|
if ($do_clone) {
|
|
if ($branch) {
|
|
push @reference_args, '--branch', $branch;
|
|
} else {
|
|
push @reference_args, '--no-checkout';
|
|
}
|
|
$self->exe('git', 'clone', @reference_args,
|
|
($mirror ? $mirror : $url), $submodule);
|
|
}
|
|
|
|
my $orig_cwd = getcwd();
|
|
chdir($submodule) or confess "chdir $submodule: $OS_ERROR";
|
|
|
|
if ($mirror) {
|
|
# This is only for the user's convenience - we make no use of it.
|
|
$self->exe('git', 'config', 'remote.mirror.url', $mirror);
|
|
$self->exe('git', 'config', 'remote.mirror.fetch', '+refs/heads/*:refs/remotes/mirror/*');
|
|
}
|
|
|
|
if (!$do_clone && $self->{fetch}) {
|
|
# If we didn't clone, fetch from the right location. We always update
|
|
# the origin remote, so that submodule update --remote works.
|
|
$self->exe('git', 'config', 'remote.origin.url', ($mirror ? $mirror : $url));
|
|
$self->exe('git', 'fetch', 'origin');
|
|
}
|
|
|
|
if (!($do_clone || $self->{fetch}) || $mirror) {
|
|
# Leave the origin configured to the canonical URL. It's already correct
|
|
# if we cloned/fetched without a mirror; otherwise it may be anything.
|
|
$self->exe('git', 'config', 'remote.origin.url', $url);
|
|
}
|
|
|
|
my $template = $orig_cwd."/.commit-template";
|
|
if (-e $template) {
|
|
$self->exe('git', 'config', 'commit.template', $template);
|
|
}
|
|
|
|
if (!has_url_scheme($repo_basename)) {
|
|
$self->git_add_remotes($repo_basename);
|
|
}
|
|
|
|
if ($self->{'detach-alternates'}) {
|
|
$self->exe('git', 'repack', '-a');
|
|
|
|
my $alternates_path = '.git/objects/info/alternates';
|
|
if (-e $alternates_path) {
|
|
unlink($alternates_path) || confess "unlink $alternates_path: $OS_ERROR";
|
|
}
|
|
}
|
|
|
|
chdir($orig_cwd) or confess "cd $orig_cwd: $OS_ERROR";
|
|
|
|
return;
|
|
}
|
|
|
|
sub ensure_link
|
|
{
|
|
my ($self, $src, $tgt) = @_;
|
|
return if (!$self->{'force-hooks'} and -f $tgt);
|
|
unlink($tgt); # In case we have a dead symlink or pre-existing hook
|
|
print "Aliasing $src\n as $tgt ...\n" if (!$self->{quiet});
|
|
if ($^O ne "msys" && $^O ne "MSWin32") {
|
|
return if eval { symlink($src, $tgt) };
|
|
}
|
|
# Windows doesn't do (proper) symlinks. As the post_commit script needs
|
|
# them to locate itself, we write a forwarding script instead.
|
|
open SCRIPT, ">".$tgt or die "Cannot create forwarding script $tgt: $!\n";
|
|
# Make the path palatable for MSYS.
|
|
$src =~ s,\\,/,g;
|
|
$src =~ s,^(.):/,/$1/,g;
|
|
print SCRIPT "#!/bin/sh\nexec $src \"\$\@\"\n";
|
|
close SCRIPT;
|
|
}
|
|
|
|
sub git_install_hooks
|
|
{
|
|
my ($self) = @_;
|
|
|
|
my $hooks = $script_path.'/qtrepotools/git-hooks';
|
|
if (!-d $hooks) {
|
|
print "Warning: cannot find Git hooks, qtrepotools module might be absent\n";
|
|
return;
|
|
};
|
|
|
|
my @configresult = qx(git config --list --local);
|
|
foreach my $line (@configresult) {
|
|
next if ($line !~ /submodule\.([^.=]+)\.url=/);
|
|
my $module = $1;
|
|
my $module_gitdir = $module.'/.git';
|
|
if (!-d $module_gitdir) {
|
|
open GITD, $module_gitdir or die "Cannot open $module: $!\n";
|
|
my $gd = <GITD>;
|
|
close GITD;
|
|
chomp($gd);
|
|
$gd =~ s/^gitdir: // or die "Malformed .git file $module_gitdir\n";
|
|
$module_gitdir = rel2abs($gd, $module);
|
|
if (open COMD, $module_gitdir.'/commondir') {
|
|
my $cd = <COMD>;
|
|
chomp($cd);
|
|
$module_gitdir .= '/'.$cd;
|
|
$module_gitdir = abs_path($module_gitdir);
|
|
close COMD;
|
|
}
|
|
}
|
|
$self->ensure_link($hooks.'/gerrit_commit_msg_hook', $module_gitdir.'/hooks/commit-msg');
|
|
$self->ensure_link($hooks.'/git_post_commit_hook', $module_gitdir.'/hooks/post-commit');
|
|
$self->ensure_link($hooks.'/clang-format-pre-commit', $module_gitdir.'/hooks/pre-commit');
|
|
}
|
|
}
|
|
|
|
sub run
|
|
{
|
|
my ($self) = @_;
|
|
|
|
$self->check_if_already_initialized;
|
|
|
|
chomp(my $url = `git config remote.origin.url`);
|
|
die("Have no origin remote.\n") if (!$url);
|
|
$url =~ s,\.git/?$,,;
|
|
$url =~ s/((?:tqtc-)?qt5)$//;
|
|
my $qtrepo = $1 || 'qt5';
|
|
$self->{'base-url'} = $url;
|
|
|
|
$self->git_clone_all_submodules($qtrepo, $self->{branch}, $self->{alternates}, @{$self->{'module-subset'}});
|
|
|
|
$self->git_add_remotes($qtrepo);
|
|
|
|
$self->git_install_hooks;
|
|
|
|
return;
|
|
}
|
|
|
|
#==============================================================================
|
|
|
|
Qt::InitRepository->new()->run if (!caller);
|
|
1;
|