如何将Macports软件降级到旧版本? [英] How to downgrade macports software to old revision?

问题描述

我有一个使用通过Macports安装的软件包ffmpeg-devel的应用程序.

I have an application that uses the software package ffmpeg-devel which is installed via macports.

上个月，我通过运行port selfupdate和port upgrade outdated来更新macports，其中安装了新版本的ffmpeg-devel.

Last month I updated macports by running port selfupdate and port upgrade outdated which installed a new version of ffmpeg-devel.

然后，我的应用程序构建过程开始失败，并出现提及兼容性的错误. 我有99％的把握会因为新版本的ffmpeg-devel而发生这种情况.

My Application building process then started to fail with errors mentioning compatibility. I'm 99% sure that this happens because of the new version of ffmpeg-devel.

我以前有ffmpeg-devel @20130205_0，现在我有ffmpeg-devel @20130328_0.

我不是专家"，安装新版本后确实删除了旧版本，因此现在我需要安装旧的ffmpeg-devel修订版(基于日期20130328).

I'm not a "guru" and after installing the new version I did remove the old version by mistake, so now I need to install the old ffmpeg-devel revision (based on date 20130328).

我该怎么做?

谢谢

推荐答案

Macports不支持此功能，但是有一种解决方法.

Macports does not support this, but there is a workaround.

您可以将ffmpeg-devel的旧端口文件放在本地端口文件存储库中，然后再次安装ffmpeg-devel.

You can put the old portfile of ffmpeg-devel in a local portfile repository and then install ffmpeg-devel again.

1. 创建本地端口文件存储库:方法
2. 从 https://svn.macports.org/repository/macports/trunk/dports/multimedia/ffmpeg-devel?p=103000 并将其放在本地存储库的multimedia/ffmpeg-devel目录中.
3. 在本地端口文件存储库中再次运行portindex
4. 使用port install ffmpeg-devel
安装ffmpeg-devel

1. Create a local portfile repository: howto
2. Download the old portfile (and possibly other files) from https://svn.macports.org/repository/macports/trunk/dports/multimedia/ffmpeg-devel?p=103000 and put it in the multimedia/ffmpeg-devel directory of your local repository.
3. Run portindex again in your local portfile repository
4. Install ffmpeg-devel with port install ffmpeg-devel

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