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diff --git a/public/git-go-pre-commit.html b/public/git-go-pre-commit.html deleted file mode 100644 index 5c536f1..0000000 --- a/public/git-go-pre-commit.html +++ /dev/null @@ -1,43 +0,0 @@ -<!DOCTYPE html> -<html lang="en"> -<head> - <meta charset="utf-8"> - <title>A git pre-commit hook for automatically formatting Go code — Luke Shumaker</title> - <link rel="stylesheet" href="assets/style.css"> - <link rel="alternate" type="application/atom+xml" href="./index.atom" name="web log entries"/> -</head> -<body> -<header><a href="/">Luke Shumaker</a> » <a href=/blog>blog</a> » git-go-pre-commit</header> -<article> -<h1 id="a-git-pre-commit-hook-for-automatically-formatting-go-code">A git pre-commit hook for automatically formatting Go code</h1> -<p>One of the (many) wonderful things about the Go programming language is the <code>gofmt</code> tool, which formats your source in a canonical way. I thought it would be nice to integrate this in my <code>git</code> workflow by adding it in a pre-commit hook to automatically format my source code when I committed it.</p> -<p>The Go distribution contains a git pre-commit hook that checks whether the source code is formatted, and aborts the commit if it isn't. I don't remember if I was aware of this at the time (or if it even existed at the time, or if it is new), but I wanted it to go ahead and format the code for me.</p> -<p>I found a few solutions online, but they were all missing something—support for partial commits. I frequently use <code>git add -p</code>/<code>git gui</code> to commit a subset of the changes I've made to a file, the existing solutions would end up adding the entire set of changes to my commit.</p> -<p>I ended up writing a solution that only formats the version of the that is staged for commit; here's my <code>.git/hooks/pre-commit</code>:</p> -<pre><code>#!/bin/bash - -# This would only loop over files that are already staged for commit. -# git diff --cached --numstat | -# while read add del file; do -# … -# done - -shopt -s globstar -for file in **/*.go; do - tmp="$(mktemp "$file.bak.XXXXXXXXXX")" - mv "$file" "$tmp" - git checkout "$file" - gofmt -w "$file" - git add "$file" - mv "$tmp" "$file" -done</code></pre> -<p>It's still not perfect. It will try to operate on every <code>*.go</code> file—which might do weird things if you have a file that hasn't been checked in at all. This also has the effect of formatting files that were checked in without being formatted, but weren't modified in this commit.</p> -<p>I don't remember why I did that—as you can see from the comment, I knew how to only select files that were staged for commit. I haven't worked on any projects in Go in a while—if I return to one of them, and remember why I did that, I will update this page.</p> - -</article> -<footer> -<p>The content of this page is Copyright © 2013 <a href="mailto:lukeshu@sbcglobal.net">Luke Shumaker</a>.</p> -<p>This page is licensed under the <a href="http://www.wtfpl.net/txt/copying/">WTFPL-2</a> license.</p> -</footer> -</body> -</html> |