Buildout，psycopg2，postgresql

问题描述

如果需要，我正在尝试使用build out config安装psycopg2 egg和postgres ：

  parts = 
 ... 
 postgre 
 psycopg2 
 ... 
 
 [postgre] 
食谱= hexagonit.recipe。 cmmi 
 url = ftp://ftp3.ua.postgresql.org/pub/mirrors/postgresql/source/v9.0.0/postgresql-9.0.0.tar.gz 
 configure-options = 
 --without-readline 
 
 [psycopg2] 
 recipe = zc.recipe.egg：custom 
 egg = psycopg2 
 include-dirs = 
 $ {postgre：location} / include 
 library-dirs = 
 $ {postgre：location} / lib 
 rpath = 
 $ {postgre：location} / lib 
  

问题是它始终从源代码生成postgresql，即使用户已经安装了postgresql。

我如何告诉buildout来检查用户是否已经有必要建立psycopg2？

解决方案

p>你可以这样做，但是你会必须做自己的食谱做这个检查。没有现有的食谱可以做你想要的。

另一种方法是使用两个buildout配置。主要的 buildout.cfg 假定postgresql是可用的，不会尝试构建它。

第二个 withpostgres.cfg 可能如下所示：

  [buildout] 
零件+ = 
 postgre 
 psycopg2 
 
 [postgres] 
 ...您现有的... 
 
 [psycopg2] 
 ...您现有的... 
  

需要从源代码构建的用户可以使用通过调用 bin / buildout -c withpostres.cfg 的第二个配置。

这会解决你的问题吗？ p>

I'm trying to make buildout config that installs psycopg2 egg and postgres from source if needed:

parts =
    ...
    postgre
    psycopg2
    ...

[postgre]
recipe = hexagonit.recipe.cmmi
url = ftp://ftp3.ua.postgresql.org/pub/mirrors/postgresql/source/v9.0.0/postgresql-9.0.0.tar.gz
configure-options =
    --without-readline

[psycopg2]
recipe = zc.recipe.egg:custom
egg = psycopg2
include-dirs =
    ${postgre:location}/include
library-dirs =
    ${postgre:location}/lib
rpath =
    ${postgre:location}/lib

The problem is that it always builds postgresql from source, even if the user already has postgresql installed.

How can I tell buildout to check if user already have all necessary to build psycopg2?

解决方案

You can do it, but you'll have to make your own recipe to do that check. There's no existing recipe that does what you want.

An alternative is to have two buildout configs. The main buildout.cfg assumes postgresql is available and doesn't attempt to build it.

A second withpostgres.cfg could look like this:

[buildout]
parts +=
    postgre
    psycopg2

[postgres]
... your existing one ...

[psycopg2]
... your existing one ...

Users that need to build it from source can use the second configuration by calling bin/buildout -c withpostres.cfg.

Would that solve your issue?

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