commit 0ad76244be3f6c641cc123adb7101cbbfe3a393d
parent 7e1c2d8f4816ad1e6b00c01128d8d49bf109a4cd
Author: Eamon Caddigan <eamon.caddigan@gmail.com>
Date: Wed, 4 Dec 2024 07:41:33 -0800
Update the December Adventure log for day 4
Diffstat:
1 file changed, 57 insertions(+), 0 deletions(-)
diff --git a/content/december-adventure/2024-04/index.md b/content/december-adventure/2024-04/index.md
@@ -0,0 +1,57 @@
+---
+title: "2024, Day 4: Git pre-push hook for Hugo, part 2"
+date: 2024-12-04T14:48:25-08:00
+description: "Prevent pushing drafts to origin"
+draft: false
+---
+
+Well this is kludgey and frail, but I've worked out a pre-push hook that
+should stop me from pushing (most) drafts to my website (which is published
+when I push my repository to origin/main, hence the check on line 12).
+
+```bash
+#!/bin/sh
+# Prevent a push to origin/main if a suspected draft post is found
+
+remote="$1"
+url="$2"
+
+z40=0000000000000000000000000000000000000000
+
+
+while read local_ref local_sha remote_ref remote_sha
+do
+ if [ "$remote $remote_ref" = "origin refs/heads/main" ]
+ then
+ if [ "$remote_sha" = $z40 ]
+ then
+ # New branch, examine all commits
+ range="$local_sha"
+ else
+ # Update to existing branch, examine new commits
+ range="$remote_sha..$local_sha"
+ fi
+
+ git diff -U0 $range | grep -q '^\+draft: true'
+ if [ $? -eq 0 ]
+ then
+ echo >&2 "Found a possible draft, suppress with 'git push --no-verify'"
+ exit 1
+ fi
+
+ fi
+done
+
+exit 0
+```
+
+This will allow a push if there are drafts in the commit history, but the
+final commit shouldn't have any draft posts. There are plenty of ways that
+this could break, but I expect it to suffice for now.
+
+I do welcome suggestions for improvement! A better script would only check
+Markdown files, and only inspect the YAML header, and would catch things
+like multiline parameters. TBH I probably wouldn't even share something like
+this if I wasn't working on #DecemberAdventure. But I suspect that I'll
+refine it if and when I'm annoyed by any misses (false positives and
+negatives alike), so maybe it'll become decent someday.
