php - 脚本调用后 Bash 不继续？

Question

我有两个 bash 脚本。一个运行得非常好，直到它到达另一个脚本的调用，然后它执行那个脚本很好但永远不会在原始脚本中继续，我不确定如何解决这个问题。

此脚本在特定目录的每个文件夹中运行测试。每个子文件夹都包含一个 phpunit.xml 文件，当我们进入每个文件夹时，我们运行 composer install 和 phpunit。

如果目录是 Loader、Routes 或 Loop，我们将输入这些目录并在该目录中运行脚本。

让我们看看 run-tests 脚本:

#!/usr/bin/env bash

set -e

function run_tests() {
  if [[ -f "composer.json" ]] && [[ -f "phpunit.xml" ]]; then
    if [[ -d "vendor" ]]; then
      composer update
      phpunit > /dev/null
      phpunit
      cd ../
    else
      composer install
      phpunit > /dev/null
      phpunit
      cd ../
    fi
  else
    cd ../
  fi
}

for f in *; do
  if [[ -d $f ]]; then
    if [[ $f != ".git" ]] && [[ $f != "bin" ]] && [[ $f != "docs" ]]; then
      cd "$f/"

      if [[ $f == "Loader" ]]; then
        if [[ -d "Assets" ]]; then
          cd Assets/
          chmod +x asset-test
          ./asset-test
        fi
      fi

      if [[ $f == "Loop" ]]; then
        cd Loop/
        chmod +x loop-test
        ./loop-test
        cd ../
      fi

      if [[ $f == "Routes" ]]; then
        cd Routes/
        chmod +x routes-test
        ./routes-test
        cd ../
      fi

      run_tests
    fi
  fi
done

# Go Home.
cd /vagrant/Freya/

## Clean up time!
## Remove all vendor and composer.lock folders - just because.
for f in *; do
  if [[ -d $f ]]; then
    if [[ $f != ".git" ]] && [[ $f != "bin" ]] && [[ $f != "docs" ]]; then
      cd "$f/"
      rm -rf vendor composer.lock
      cd ../
    fi
  fi
done

我们可以看到，一旦进入检查我们所在的目录是不是“Loops”，我们再检查里面是否有一个名为“Assets”的目录。假设通过，我们然后进入该目录并运行下一个脚本:

#!/usr/bin/env bash

set -e

# Run Composer Install if vendor doesnt exist.
if [[ -d "vendor" ]]; then
  composer update
else
  composer install
fi

# Move up to the root directories and then get wordpress
cd ../../../

# Determine if the trunk is checked out and if we have a wp-test-config.php
# If not we need to create both or one or the other then run the tests.
#
# We run phpunit twice because the second time is when it actually runs.
if [[ -d "trunk" ]]; then
  cd "trunk/"
  if [[ -f "wp-tests-config.php" ]]; then
    cd ../Freya/Loader/Assets
    phpunit > /dev/null
    phpunit
  else
    cd ../Freya/Loader/Assets
    cp wp-tests-config.php ../../trunk/
    phpunit > /dev/null
    phpunit
  fi
else
  sudo svn co http://develop.svn.wordpress.org/trunk/
  cd Freya/Loader/Assets
  cp wp-tests-config.php ../../trunk/
  phpunit > /dev/null
  phpunit
fi

问题是一旦这个脚本完成，我发布的第一个脚本的其余部分就永远不会继续。就好像它就死在这里一样。我需要的是“父”脚本完成，它应该退出 Loader/Assets 并继续进行下一次检查。但事实并非如此。脚本只是存在。

为什么？

注意:在第二个脚本中，我们可以假设它进入第一个嵌套的 if 语句，它在主干目录中检查 wp-tests-config.php 我们可以假设这是因为以下输出是从运行第一个脚本时捕获的:

$ bin/run-tests 
Loading composer repositories with package information
Installing dependencies (including require-dev)
Nothing to install or update
Writing lock file
Generating autoload files
PHPUnit 4.6.4 by Sebastian Bergmann and contributors.

Configuration read from /vagrant/Freya/Exceptions/phpunit.xml

.

Time: 451 ms, Memory: 13.25Mb

OK (1 test, 1 assertion)
Loading composer repositories with package information
Installing dependencies (including require-dev)
Nothing to install or update
Writing lock file
Generating autoload files
PHPUnit 4.6.4 by Sebastian Bergmann and contributors.

Configuration read from /vagrant/Freya/Factory/phpunit.xml

...........

Time: 711 ms, Memory: 13.25Mb

OK (11 tests, 11 assertions)
Loading composer repositories with package information
Installing dependencies (including require-dev)
  - Installing freya/freya-templates (dev-master a33ecdb)
    Cloning a33ecdb231b06dc8a7eef363edb177b8c134d55b

Writing lock file
Generating autoload files
PHPUnit 4.6.4 by Sebastian Bergmann and contributors.

Configuration read from /vagrant/Freya/Form/phpunit.xml

...............................................................

Time: 647 ms, Memory: 15.25Mb

OK (63 tests, 63 assertions)
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating autoload files
Installing...
Running as single site... To run multisite, use -c tests/phpunit/multisite.xml
Not running ajax tests. To execute these, use --group ajax.
Not running ms-files tests. To execute these, use --group ms-files.
Not running external-http tests. To execute these, use --group external-http.
PHPUnit 4.6.4 by Sebastian Bergmann and contributors.

Configuration read from /vagrant/Freya/Loader/Assets/phpunit.xml

...........

Time: 1.76 seconds, Memory: 38.00Mb

OK (11 tests, 11 assertions)
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating autoload files
Installing...
Running as single site... To run multisite, use -c tests/phpunit/multisite.xml
Not running ajax tests. To execute these, use --group ajax.
Not running ms-files tests. To execute these, use --group ms-files.
Not running external-http tests. To execute these, use --group external-http.
PHPUnit 4.6.4 by Sebastian Bergmann and contributors.

Configuration read from /vagrant/Freya/Loader/Assets/phpunit.xml

...........

Time: 1.79 seconds, Memory: 38.00Mb

这里我们可以看到两个问题:

• /vagrant/Freya/Loader/Assets/ 运行了两次。
• 它永远不会在第一个脚本中继续。

Answer 1

如果没有像在您的机器上那样设置所有内容，很难远程调试它。要获得更有帮助的答案，您可以先尝试通过连续禁用部分代码来隔离问题。我可以看出这在您的场景中可能很困难。

这里只是调试的一些想法:

• 两个脚本都使用 set -e 运行，即它们将在第一个命令(包括第二个脚本)以非零退出代码终止时退出。尝试添加 set -x 以及查看最后执行的命令。
• 您有很多相关的 cd 调用。尝试在上一步中确定的最后一个命令之前 pwd - 您可能只是在错误的目录中。