Heroku构建包 - 安装Python包使用的可执行文件 [英] Heroku buildpacks - installing executables that are used by Python packages

问题描述

我试图在Heroku上安装M2Crypto。这依赖于安装SWIG。

我创建了自定义编译 swig 可执行文件和定制buildpack 。

然后我 git push my代码到Heroku，定制buildpack安装SWIG然后尝试安装M2Crypto，但因为找不到 swig 而失败。

 ＃安装SWIG 
 if [！ -d $ CACHE_DIR / swig];然后
 cd $ BUILD_DIR 
 echo----->获取并安装SWIG 2
 curl -O https://s3.amazonaws.com/guybowden/swig.tar。 gz> / dev / null 2>& 1 
 echo----->正在安装...
 tar xzvf swig.tar.gz> / dev / null 2>& amp ; 1 
 mv swig $ CACHE_DIR / swig 
 rm swig.tar.gz 
 echoSWIG installed|缩进
 fi 
 
 mkdir -p .paybox 
 cp -R $ CACHE_DIR / swig .paybox 
 
 echo更新路径...|缩进
 PATH = $ PATH：/app/.paybox/swig/bin/ 
导出PATH 
 echo $ PATH | indent 
 echosetting SWIG_LIB environment var
 export SWIG_LIB = / app / .paybox / swig / share / swig / 2.0.5 / 
  

$ b

这发生在任何 pip install 命令运行之前。

如果我 heroku运行bash ，然后手动运行源文件.heroku / venv / bin / activate&& pip install M2Crypto 它没有安装问题，我的应用程序在bash提示符下工作，实现了该实例的生命周期。

我认为有一个问题当初始 pip install -r要求运行...任何想法时，PATH设置

解决方案

  PATH = $ PATH：$ BUILD_DIR / .paybox / swig / bin / 
导出PATH 
 echo $ PATH |缩进
 echo设置SWIG_LIB环境变量
导出SWIG_LIB = $ BUILD_DIR / .paybox / swig / share / swig / 2.0.5 / 
  

$ BUILD_DIR是构建包执行时构建的东西 - not / app /（它是应用程序运行时它的存在位置）

I am trying to install M2Crypto on Heroku. This relies on SWIG being installed.

I've created a custom compiled swig executable and a custom buildpack.

I then git push my code up to Heroku, the custom buildpack installs SWIG then tries to install M2Crypto but fails because it can't find swig.

This is the buildpack customisation:

# Install SWIG
if [ ! -d $CACHE_DIR/swig ]; then
  cd $BUILD_DIR
  echo "-----> Fetching and installing SWIG 2"
  curl -O https://s3.amazonaws.com/guybowden/swig.tar.gz >/dev/null 2>&1
  echo "-----> Installing ..."
  tar xzvf swig.tar.gz >/dev/null 2>&1
  mv swig $CACHE_DIR/swig
  rm swig.tar.gz
  echo "SWIG installed" | indent
fi

mkdir -p .paybox
cp -R $CACHE_DIR/swig .paybox

echo "updating path..." | indent
PATH=$PATH:/app/.paybox/swig/bin/
export PATH
echo $PATH | indent
echo "setting SWIG_LIB environment var"
export SWIG_LIB=/app/.paybox/swig/share/swig/2.0.5/

This happens before any pip install commands are run.

If I heroku run bash and then manually run source .heroku/venv/bin/activate && pip install M2Crypto it installs no problem and my App works inside the bash prompt for the lifetime of that instance.

I think there's a problem with the PATH setting when the initial pip install -r requirements runs... any ideas?

解决方案

And the answer is..

PATH=$PATH:$BUILD_DIR/.paybox/swig/bin/
export PATH
echo $PATH | indent
echo "setting SWIG_LIB environment var"
export SWIG_LIB=$BUILD_DIR/.paybox/swig/share/swig/2.0.5/

$BUILD_DIR is where the stuff is built when the buildpack is executed - not /app/ (which is where it lives when the app runs!

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