deployer/recipe/common.php

<?php
/* (c) Anton Medvedev <anton@elfet.ru>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

set('env', 'prod');
set('keep_releases', 3);

/**
 * Rollback to previous release.
 */
task('rollback', function () {
    $releases = env('releases_list');

    if (isset($releases[1])) {
        $releaseDir = "{deploy_path}/releases/{$releases[1]}";

        // Symlink to old release.
        run("cd {deploy_path} && ln -s $releaseDir rollback");
        run("cd {deploy_path} && rm current && mv -f rollback current");

        // Remove release
        run("rm -rf {deploy_path}/releases/{$releases[0]}");

        if (isVerbose()) {
            writeln("Rollback to `{$releases[1]}` release was successful.");
        }
    } else {
        writeln("<comment>No more releases you can revert to.</comment>");
    }
})->desc('Rollback to previous release');


/**
 * Preparing server for deployment.
 */
task('deploy:prepare', function () {
    // Create releases dir.
    run("cd {deploy_path} && if [ ! -d releases ]; then mkdir releases; fi");

    // Create shared dir.
    run("cd {deploy_path} && if [ ! -d shared ]; then mkdir shared; fi");
})->desc('Preparing server for deploy');

/**
 * Return release path.
 */
env('release_path', function () {
    return str_replace("\n", '', run("readlink {deploy_path}/release"));
});

/**
 * Release
 */
task('deploy:release', function () {
    $release = 1;

    $releases = env('releases_list');
    if (!empty($releases)) {
        $release = (int)$releases[0] + 1;
    }

    $releasePath = "{deploy_path}/releases/$release";

    run("mkdir $releasePath");

    run("cd {deploy_path} && if [ -e release ]; then rm release; fi");

    run("ln -s $releasePath {deploy_path}/release");
})->desc('Prepare release');


/**
 * Update project code
 */
task('deploy:update_code', function () {
    $repository = get('repository');
    run("git clone --recursive -q $repository {release_path} 2>&1");
    run("chmod -R g+w {release_path}");
})->desc('Updating code');


/**
 * Create symlinks for shared directories and files.
 */
task('deploy:shared', function () {
    $sharedPath = "{deploy_path}/shared";

    foreach (get('shared_dirs') as $file) {
        // Remove from source
        run("if [ -d $(echo {release_path}/$file) ]; then rm -rf {release_path}/$file; fi");

        // Create shared dir if does not exist
        run("mkdir -p $sharedPath/$file");

        // Symlink shared dir to release dir
        run("ln -nfs $sharedPath}/$file {release_path}/$file");
    }

    foreach (get('shared_files') as $file) {
        // Remove from source
        run("if [ -d $(echo {release_path}/$file) ]; then rm -rf {release_path}/$file; fi");

        // Create dir of shared file
        run("mkdir -p $sharedPath/" . dirname($file));

        // Touch shared
        run("touch $sharedPath/$file");

        // Symlink shared dir to release dir
        run("ln -nfs $sharedPath}/$file {release_path}/$file");
    }
})->desc('Creating symlinks for shared files');


/**
 * Make writeable dirs.
 */
task('deploy:writeable', function () {
    foreach (get('writeable_dirs') as $dir) {
        run("cd {release_path} && chmod -R 0777 $dir");
        run("cd {release_path} && chmod -R g+w $dir");
    }
})->desc('Make writeable dirs');


/**
 * Installing vendors tasks.
 */
task('deploy:vendors', function () {
    $prod = get('env');
    $isComposer = runBool("if [ -e {release_path}/composer.phar ]; then echo 'true'; fi");

    if (!$isComposer) {
        run("cd {release_path} && curl -s http://getcomposer.org/installer | php");
    }

    run("cd {release_path} && SYMFONY_ENV=$prod php composer.phar install --no-dev --verbose --prefer-dist --optimize-autoloader --no-progress --no-scripts");

})->desc('Installing vendors');


/**
 * Create symlink to last release.
 */
task('deploy:symlink', function () {

    run("cd {deploy_path} && rm current && mv release current");

})->desc('Creating symlink to release');


/**
 * Return list of releases on server.
 */
env('releases_list', function () {
    $ls = run('ls {deploy_path}/releases');
    $list = array_filter(explode("\n", $ls), function ($line) {
        return !empty($line);
    });

    rsort($list);

    return $list;
});


/**
 * Return current release path.
 */
env('current', function () {
    $currentRelease = str_replace("\n", '', run("readlink {deploy_path}/current"));
    return $currentRelease;
});

/**
 * Show current release number.
 */
task('current', function () {
    writeln('Current release: ' . basename(env('current')));
})->desc('Show current release.');


/**
 * Cleanup old releases.
 */
task('cleanup', function () {
    $releases = env('releases_list');

    $keep = get('keep_releases');

    while ($keep > 0) {
        array_shift($releases);
        --$keep;
    }

    foreach ($releases as $release) {
        run("rm -rf {deploy_path}/releases/$release");
    }

    run("cd {deploy_path} && if [ -e release ]; then rm release; fi");

})->desc('Cleaning up old releases');