nixpkgs/pkgs/desktops/pantheon/update.sh
2019-01-24 20:54:14 +00:00

224 lines
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#!@bash@/bin/bash
PATH=@bash@/bin:@nix_prefetch_scripts@/bin:@common_updater_scripts@/bin:@git@/bin:@jq@/bin:@nix@/bin:@gnugrep@/bin:@gnused@/bin:@curl@/bin:$PATH
#!/usr/bin/env bash
set -eu -o pipefail
#
# ─── HOW TO USE ─────────────────────────────────────────────────────────────────
#
function usage ( ) {
cat <<EOF
Usage: update.sh <repo_name> <attr>
EOF
}
#
# ─── POINTS YOU IN THE RIGHT DIRECTION ──────────────────────────────────────────
#
function usage_tip ( ) {
echo 'run `update.sh -h` for usage instructions' >&2
exit 1
}
#
# ─── OPTIONS: RELEASE | MASTER ────────────────────────────────────────────────────
#
while getopts ":hrm" opt; do
case $opt in
r)
release=1
master=0
;;
m)
master=1
release=0
;;
h)
usage
exit
;;
?)
echo "Invalid option: -$OPTARG" >&2
usage_tip
;;
esac
done
shift $((OPTIND-1))
#
# ─── FAIL WITH MESSAGE AND NON-ZERO EXIT STATUS ─────────────────────────────────
#
function fail ( ) {
echo "$1" >&2
exit 1
}
#
# ─── UPDATES PACKAGE TO LATEST TAGGED RELEASE ───────────────────────────────
#
function update_to_latest_release ( ) {
repo_name="$1"
attr="$2"
version=$(get_latest_tag "$repo_name")
fetch=$(fetch "$repo_name" "refs/tags/${version}")
sha256=$(get_hash "${fetch}")
update-source-version "pantheon.$attr" "$version" "$sha256"
nix_file=$(get_file_path $attr)
if [ ! -f "$nix_file" ]; then
fail "Couldn't evaluate 'pantheon.$attr.meta.position' to locate the .nix file!"
fi
correct_rev "$attr" "$nix_file" "version"
}
#
# ─── UPDATES PACKAGE TO MASTER ──────────────────────────────────────────────────
#
function update_to_master ( ) {
repo_name="$1"
attr="$2"
fetch=$(fetch "$repo_name" "refs/heads/master")
version=$(get_version "$fetch")
sha256=$(get_hash "$fetch")
proper_version=$(get_master_date "$fetch")
update-source-version "pantheon.$attr" "$proper_version" "$sha256"
nix_file=$(get_file_path $attr)
if [ ! -f "$nix_file" ]; then
fail "Couldn't evaluate 'pantheon.$attr.meta.position' to locate the .nix file!"
fi
correct_rev "$attr" "$nix_file" '"'$version'"'
}
#
# ─── GETS THE LATEST TAGGED RELEASE NAME FROM GITHUB ─────────────────────
#
function get_latest_tag ( ) {
repo_name="$1"
# Using github release api because sorting this repo just doesn't work because of old git sillyness
# Also too lazy to care to adapt `git ls-remote` command to work with it
if [ $repo_name == "switchboard-plug-pantheon-shell" ]; then
curl --silent --show-error --fail -X GET "https://api.github.com/repos/elementary/$repo_name/releases/latest" | jq -r '.tag_name'
else
git ls-remote --tags --sort="v:refname" "https://github.com/elementary/$repo_name" | tail -n1 | sed 's/.*\///; s/\^{}//'
fi
}
#
# ─── FETCHES REPO AND RETURNS RELEVANT INFORMATION ──────────────────
#
function fetch ( ) {
repo_name="$1"
version="$2"
base_url="https://github.com/elementary"
full_url="$base_url/$repo_name"
nix-prefetch-git --quiet --no-deepClone --url "$full_url" --rev "$version"
}
#
# ─── PARSES GIT REVISION FROM FETCH ─────────────────────────────────────────────
#
function get_version ( ) {
fetch_info="$1"
echo "$fetch_info" | jq -r '.rev'
}
#
# ─── PARSES HASH FROM FETCH ─────────────────────────────────────────────────────
#
function get_hash ( ) {
fetch_info="$1"
echo "$fetch_info" | jq -r '.sha256'
}
#
# ─── PARSES DATE FROM FETCH AND NORMALIZES IT TO NIXPKGS STANDARD ───────────────
#
function get_master_date ( ) {
fetch_info="$1"
full_date=$(echo "$fetch_info" | jq -r '.date')
short_date=$(date -d "$full_date" +"%Y-%m-%d")
echo "unstable-$short_date"
}
#
# ─── RETURN NIX EXPRESSION PATH ─────────────────────────────────────────────────
#
function get_file_path () {
attr="$1"
nix-instantiate --eval --strict -A "pantheon.$attr.meta.position" | sed -re 's/^"(.*):[0-9]+"$/\1/'
}
#
# ─── CORRECTS REV VERSION ───────────────────────────────────────────────────────────
#
function correct_rev ( ) {
attr="$1"
nix_file="$2"
rev="$3"
check_pattern1='^\s*rev\s*=\s*"[0-9a-f]{5,40}"'
check_pattern2='^\s*rev\s*=\s*version'
replace_pattern1='/\brev\b\s*=/ s|\"[0-9a-f]{5,40}\"|'$rev'|'
replace_pattern2='/\brev\b\s*=/ s|version|'$rev'|'
if [ $(grep -c -P "$check_pattern1" "$nix_file") = 1 ]; then
pattern="$replace_pattern1"
elif [ $(grep -c -P "$check_pattern2" "$nix_file") = 1 ]; then
pattern="$replace_pattern2"
else
fail "Couldn't figure out where out where to patch in the correct version in pantheon.$attr!"
fi
sed -i.bak "$nix_file" -re "$pattern"
rm -f "$nix_file.bak"
}
#
# ─── WHETHER TO UPDATE TO RELEASE OR MASTER ──────────────────────────────────
#
if [ $release = 1 ]; then
update_to_latest_release $1 $2
elif [ $master = 1 ]; then
update_to_master $1 $2
else
exit 1
fi
# ────────────────────────────────────────────────────────────────────────────────