如何从 Ant 构建脚本执行交互式应用程序？

发布于 2024-11-15 04:59:20 字数 1509 浏览 3 评论 0 原文

来自 http://ant.apache.org/manual/Tasks/exec.html：

请注意，您无法与分叉程序，发送的唯一方式输入是通过输入和输入字符串属性。另请注意从 Ant 1.6 开始，任何尝试读取分叉程序中的输入将收到 EOF (-1)。这是一个改变从 Ant 1.5 开始，这样的尝试会阻塞。

如何从 ant 启动交互式控制台程序并与之交互？

我想做的类似于 drush sqlc 功能，即使用正确的数据库凭据启动 mysql 客户端解释器，但不限于此用例。

这是一个示例用例：

<project name="mysql">
  <target name="mysql">
    <exec executable="mysql">
      <arg line="-uroot -p"/>
    </exec>
  </target>
</project>

当使用 ant 运行时：

$ ant -f mysql.xml mysql
Buildfile: /home/ceefour/tmp/mysql.xml

mysql:
Enter password:

BUILD SUCCESSFUL
Total time: 2 seconds

输入密码后，它立即退出。

将此与直接在 shell 上执行时发生的情况进行比较（预期行为）：

$ mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1122
Server version: 5.1.58-1ubuntu1 (Ubuntu)

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

原文

From http://ant.apache.org/manual/Tasks/exec.html :

Note that you cannot interact with the
forked program, the only way to send
input to it is via the input and
inputstring attributes. Also note that
since Ant 1.6, any attempt to read
input in the forked program will
receive an EOF (-1). This is a change
from Ant 1.5, where such an attempt
would block.

How do I launch and interact with interactive console program from ant?

What I want to do is similar to drush sqlc functionality, that is launch the mysql client interpreter using the proper database credentials, but not limited to this use case.

Here's a sample use case:

<project name="mysql">
  <target name="mysql">
    <exec executable="mysql">
      <arg line="-uroot -p"/>
    </exec>
  </target>
</project>

When run using ant :

$ ant -f mysql.xml mysql
Buildfile: /home/ceefour/tmp/mysql.xml

mysql:
Enter password:

BUILD SUCCESSFUL
Total time: 2 seconds

After inputting password, it immediately exits.

Compare this with what happens when executing directly on the shell (expected behavior):

$ mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1122
Server version: 5.1.58-1ubuntu1 (Ubuntu)

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

请持续率性 2024-11-22 04:59:20

您可以通过 shell 启动命令，将标准输入/输出/错误从/到/重定向到 /dev/tty，它对应于进程的控制终端。

<target name="dbshell" description="Open a shell for interactive tasks">
  <exec executable="/bin/sh">
    <arg value="-c"/>
    <arg value="mysql -u root -p < /dev/tty > /dev/tty 2> /dev/tty"/>
  </exec>
</target>

You can launch your command via a shell, redirecting standard input/output/error from/to/to /dev/tty, which corresponds to the controlling terminal of the process.

<target name="dbshell" description="Open a shell for interactive tasks">
  <exec executable="/bin/sh">
    <arg value="-c"/>
    <arg value="mysql -u root -p < /dev/tty > /dev/tty 2> /dev/tty"/>
  </exec>
</target>

回复收藏 0 原文