Hi there, how’s it going? This is the second time to write the entry in English for me.
Anyway, do you know or have you ever used the
.gitattributes file in package distribution in GitHub using its Release feature?
OK, for those people who don’t/haven’t that, let me explain a brief.
This is the meta data file where you can add some attributes to the files version-controlled by Git.
The Official Git document descripting attributes is providing us the nice example, saying:
Using attributes, you can do things like specify separate merge strategies for individual files or directories in your project, tell Git how to diff non-text files, or have Git filter content before you check it into or out of Git.
That’s easier to figure out. For example, if you write down your
.gitattributes like this:
our doesn’t make any sense but just the name of the driver. Of course, originally you may don’t have the driver named
our I guess. So following configuration is needed to run this magic:
$ git config --global merge.ours.driver true
That’s it. Now the
true is built-in command just returning
So the conclusion is when you merge some branch into your branch, your changes applied
For example, this may be useful the situation where you fork some nice repository and maintain it your own but you don’t want to apply any changes to the specific file (
config.yml) during even back-porting changes for the original which happens sometimes.
Also, the attributes can also be applied to the directory, in that case, the attributes should apply to subfiles in the directory.
Moreover, there are many other kinds of attributes in Git, but I don’t pick them up anymore for keeping my topic (other than one I’ll share you below). So check the document out if you’re interested 🙂
So Git also has an
/tests export-ignore README.md export-ignore
$ git archive HEAD --worktree-attributes --output=/tmp/repo.zip
It’s good and useful, isn’t it? In script languages such PHP, the distributed packages don’t need to include the tests stuff. Nobody wants to install/deploy them to their production server.
And GitHub resources feature use this attribute to archive in their Release feature.
So that’s why you should always setup your
export-ignore attribute for your package powered by GitHub Release (e.g. Packagist package for PHP).
- The files specified attribute
.gitattributesare not to be archived
- GitHub Release feature archives the repository using this attribute, so you can avoid shipping some unnecessary kinds like tests stuff for production
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