dotfiles/.githooks/prepare-commit-msg
Marty Oehme 4634655619 Fix README image paths and dot description
Fixed paths to images for new repository dotfile delineation. Added
quick readme blurb explaining differece of normal and dotfile
directories.
Readme still explained old bare-repository directory structure. Rewrote
sentences to conform to new structure.

Removed underscore from bootstrap directory, since the repository does
not organize itself through underscore prefixes anymore.
Fixed package gathering git-hook to respect new bootstrap directory.
2020-02-11 09:33:18 +00:00

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#!/usr/bin/env sh
COMMIT_MSG_FILE="$1"
COMMIT_SOURCE="$2"
BOOTSTRAPDIR="bootstrap"
pkgfileloc="$(git rev-parse --show-toplevel)/$BOOTSTRAPDIR/packages.txt"
pkgignoreloc="$(git rev-parse --show-toplevel)/$BOOTSTRAPDIR/packages_ignore.txt"
listgen="yay"
err() {
printf "\x1b[33mCAUTION:\x1b[0m %s\n" "$*"
exit 1
}
if [ ! -f "$pkgfileloc" ]; then
err "File not found - $pkgfileloc, can not determine package differences!"
fi
if ! type "$listgen" >/dev/null 2>&1; then
err "Yay not installed on machine, can not reliably determine package differences!"
fi
# get commited packages, remove empty lines
# and lines beginning with # to allow comments
pkgcommited=$(mktemp)
sed -e '/^[#$]/d' <"$pkgfileloc" | sort >"$pkgcommited"
# get packages on this machine
# q removes extraneous info
# e only lists explicitly installed
# tt removes those that are depended on, but NOT those optionally depended on
pkgcurrent=$(yay -Qqett | sort)
# remove those listed in package_ignore.txt
if [ -f "$pkgignoreloc" ]; then
pkgcurrent=$(echo "$pkgcurrent" | comm -23 - "$pkgignoreloc")
fi
# compare the lists, list differences
result=$(echo "$pkgcurrent" | comm -3 - "$pkgcommited")
# get files only in repo (field1), and only on machine (field2)
added=$(echo "$result" | cut -f1 | sed -e '/^$/d')
removed=$(echo "$result" | cut -s -f2)
# if we have no changes, do nothing
if [ -n "$added" ] || [ -n "$removed" ]; then
text=$(printf "\-- PACKAGE DIFFERENCES TO COMMITED LIST FOUND --\nPackages NOT YET in repo:\n%s\n\nPackages ONLY in repo:%s\n" "$added" "$removed" | sed 's/^/# /gm')
else
exit 0
fi
# prepend package changes to message
case $COMMIT_SOURCE in
"" | message, | template,)
msg=$(echo "$text" | cat - "$COMMIT_MSG_FILE")
printf "%s" "$msg" >"$COMMIT_MSG_FILE"
;;
esac