Drush 8安装问题

Question

几个月前，我尝试卸载drush 6，以便将drush 8改为drush 8(用于D6到D8迁移)。我完全不知道为什么，但不可能在我的网站上安装drush 8，无论使用什么方法(直接或通过composer)。

更确切地说，乍一看，drush 8.1似乎已经正确安装，但是一个"drush状态“命令奇怪地显示了”版本8.0.3安装“，并且在尝试在drupal目录中使用drush 8时没有认出drupal站点。

我准确地说，我是托管的VPS上安装了PHP5.5，而drush 6.7运行得非常好。

下面是在我尝试使用composer时使用的详细信息(自那以后没有改进)：

[~]# composer global require drush/drush:8.*

Changed current directory to /home/user/.composer

./composer.json has been created

Loading composer repositories with package information

Updating dependencies (including require-dev)

  - Installing pear/console_table (v1.3.0)
    Downloading: 100%         

  - Installing symfony/polyfill-mbstring (v1.2.0)
    Downloading: 100%         

  - Installing symfony/console (v2.8.6)
    Downloading: 100%         

  - Installing symfony/var-dumper (v2.8.6)
    Downloading: 100%         

  - Installing symfony/yaml (v2.8.6)
    Downloading: 100%         

  - Installing jakub-onderka/php-console-color (0.1)
    Downloading: 100%         

  - Installing jakub-onderka/php-console-highlighter (v0.3.2)
    Downloading: 100%         

  - Installing dnoegel/php-xdg-base-dir (0.1)
    Downloading: 100%         

  - Installing nikic/php-parser (v2.1.0)
    Downloading: 100%         

  - Installing psy/psysh (v0.7.2)
    Downloading: 100%         

  - Installing psr/log (1.0.0)
    Downloading: 100%         

  - Installing drush/drush (8.1.2)
    Downloading: 100%         

pear/console_table suggests installing pear/Console_Color2 (>=0.1.2)

symfony/console suggests installing symfony/event-dispatcher ()

symfony/console suggests installing symfony/process ()

symfony/var-dumper suggests installing ext-symfony_debug ()

psy/psysh suggests installing ext-pcntl (Enabling the PCNTL extension makes PsySH a lot happier :))

psy/psysh suggests installing ext-posix (If you have PCNTL, you'll want the POSIX extension as well.)

psy/psysh suggests installing ext-readline (Enables support for arrow-key history navigation, and showing and manipulating command history.)

psy/psysh suggests installing ext-pdo-sqlite (The doc command requires SQLite to work.)

drush/drush suggests installing ext-pcntl (*)

drush/drush suggests installing drush/config-extra (Provides configuration workflow commands, such as config-merge.)

Writing lock file

Generating autoload files

[~]# drush status

 PHP executable         :  /usr/bin/php-cli

 PHP configuration      :  /usr/local/lib/php.ini

 PHP OS                 :  Linux

 Drush script           :  /home/user/vendor/drush/drush/drush.php

 Drush version          :  8.0.3

 Drush temp directory   :  /tmp

 Drush configuration    :

 Drush alias files      :

 /home/user/.drush/en.aliases.drushrc.php

 /home/user/.drush/fr.aliases.drushrc.php

 /home/user/.drush/es.aliases.drushrc.php

[~]# drush version

 Drush Version   :  8.0.3

[~]# cd public_html/en/sites/en.mysite.com/

[~/public_html/en/sites/en.mysite.com]# drush cc all

No Drupal site found, only 'drush' cache was cleared.                [warning]

[~/public_html/en/sites/en.mysite.com]# drush ups

Command pm-updatestatus needs a higher bootstrap level to run - you  [error]
will need to invoke drush from a more functional Drupal environment
to run this command.

The drush command 'ups' could not be executed.                       [error]

Answer 1

嗯，我想我终于找到了问题的根源。

我以前的drush status错误地显示：

[~]# drush status
 PHP executable         :  /usr/bin/php-cli
 PHP configuration      :  /usr/local/lib/php.ini
 PHP OS                 :  Linux
 Drush script           :  /home/user/vendor/drush/drush/drush.php
 Drush version          :  8.0.3

卸载Drush之后，我删除了/home/user/vendor/drush目录和其他剩余的Drush文件和目录，以便从尽可能干净的情况下重新启动。然后，我用composer重新安装了Drush 8，现在drush status正确地显示：

[~]# drush status
 PHP executable         :  /usr/bin/php-cli
 PHP configuration      :  /usr/local/lib/php.ini
 PHP OS                 :  Linux
 Drush script           :  /home/user/.composer/vendor/drush/drush/drush.php
 Drush version          :  8.1.3

奇怪的是，这只是对Drush 8的一个问题，而不是对于Drush 6的问题，但最终Drush 8似乎暂时运行良好。

Answer 2

这种方法应该可以在几乎所有的环境中工作：

浏览https://github.com/drush-ops/drush/releases以获得您想要的版本。您不能在php5.5中使用drush 9，所以必须选择drush 8。

下载选定的drush版本

wget https://github.com/drush-ops/drush/releases/download/8.1.3/drush.phar

并尝试运行这个php运行时文件：

/usr/local/php5.5/bin/php drush.phar status

php路径就是一个例子。如果php没有获得正确的php版本，您只需要它。

您可以像这样继续运行drush，但是将其重命名为drush、使用chmod +x drush使其可执行并将其复制到您的shell将其作为可执行文件找到的位置(在$PATH中定义的路径)更为方便。这取决于您的环境允许您执行phar文件。