171 lines
5 KiB
Nix
171 lines
5 KiB
Nix
{
|
||
lib,
|
||
writeShellApplication,
|
||
coreutils,
|
||
git,
|
||
nix,
|
||
common-updater-scripts,
|
||
}:
|
||
|
||
# This is an updater for unstable packages that should always use the latest
|
||
# commit.
|
||
{
|
||
url ? null, # The git url, if empty it will be set to src.gitRepoUrl
|
||
branch ? null,
|
||
hardcodeZeroVersion ? false, # Use a made-up version "0" instead of latest tag. Use when there is no previous release, or the project's tagging system is incompatible with what we expect from versions
|
||
tagFormat ? "*", # A `git describe --tags --match '<format>'` pattern that tags must match to be considered
|
||
tagPrefix ? null, # strip this prefix from a tag name
|
||
tagConverter ? null, # A command to convert more complex tag formats. It receives the git tag via stdin and should convert it into x.y.z format to stdout
|
||
shallowClone ? true,
|
||
}:
|
||
|
||
assert lib.asserts.assertMsg (
|
||
tagPrefix == null || tagConverter == null
|
||
) "Can only use either tagPrefix or tagConverter!";
|
||
|
||
let
|
||
updateScript = writeShellApplication {
|
||
name = "unstable-update-script";
|
||
runtimeInputs = [
|
||
common-updater-scripts
|
||
coreutils
|
||
git
|
||
nix
|
||
];
|
||
text = ''
|
||
set -ex
|
||
|
||
url=""
|
||
branch=""
|
||
hardcode_zero_version=""
|
||
tag_format=""
|
||
tag_prefix=""
|
||
tag_converter=""
|
||
shallow_clone=""
|
||
: "''${systemArg:=}"
|
||
|
||
while (( $# > 0 )); do
|
||
flag="$1"
|
||
shift 1
|
||
case "$flag" in
|
||
--url=*)
|
||
url="''${flag#*=}"
|
||
;;
|
||
--branch=*)
|
||
branch="''${flag#*=}"
|
||
;;
|
||
--hardcode-zero-version)
|
||
hardcode_zero_version=1
|
||
;;
|
||
--tag-format=*)
|
||
tag_format="''${flag#*=}"
|
||
;;
|
||
--tag-prefix=*)
|
||
tag_prefix="''${flag#*=}"
|
||
;;
|
||
--tag-converter=*)
|
||
tag_converter="''${flag#*=}"
|
||
;;
|
||
--shallow-clone)
|
||
shallow_clone=1
|
||
;;
|
||
*)
|
||
echo "$0: unknown option ‘''${flag}’"
|
||
exit 1
|
||
;;
|
||
esac
|
||
done
|
||
|
||
# By default we set url to src.gitRepoUrl
|
||
if [[ -z "$url" ]]; then
|
||
# system argument cannot be passed as 1 argument
|
||
# shellcheck disable=SC2086
|
||
url="$(nix-instantiate $systemArg --eval -E \
|
||
"with import ./. {}; $UPDATE_NIX_ATTR_PATH.src.gitRepoUrl" \
|
||
| tr -d '"')"
|
||
fi
|
||
|
||
# Get info about HEAD from a shallow git clone
|
||
tmpdir="$(mktemp -d)"
|
||
|
||
cloneArgs=()
|
||
|
||
if [[ "$shallow_clone" == "1" ]]; then
|
||
cloneArgs+=(--depth=1)
|
||
fi
|
||
|
||
if [[ -n "$branch" ]]; then
|
||
cloneArgs+=(--branch="$branch")
|
||
fi
|
||
|
||
git clone "''${cloneArgs[@]}" "$url" "$tmpdir"
|
||
getLatestVersion() {
|
||
git describe --tags --abbrev=0 --match "''${tag_format}" 2> /dev/null || true
|
||
}
|
||
|
||
pushd "$tmpdir"
|
||
commit_date="$(git show -s --pretty='format:%cs')"
|
||
commit_sha="$(git show -s --pretty='format:%H')"
|
||
last_tag=""
|
||
if [[ -z "$hardcode_zero_version" ]]; then
|
||
if [[ "$shallow_clone" == "1" ]]; then
|
||
depth=100
|
||
while (( depth < 10000 )); do
|
||
last_tag="$(getLatestVersion)"
|
||
if [[ -n "$last_tag" ]]; then
|
||
break
|
||
fi
|
||
git fetch --depth="$depth" --tags
|
||
depth=$(( depth * 2 ))
|
||
done
|
||
|
||
if [[ -z "$last_tag" ]]; then
|
||
# To be extra sure, check if full history helps with finding a tag
|
||
git fetch --tags
|
||
last_tag="$(getLatestVersion)"
|
||
fi
|
||
else
|
||
last_tag="$(getLatestVersion)"
|
||
fi
|
||
if [[ -z "$last_tag" ]]; then
|
||
last_tag="0"
|
||
fi
|
||
if [[ -n "$tag_prefix" ]]; then
|
||
echo "Stripping prefix '$tag_prefix' from tag '$last_tag'"
|
||
last_tag="''${last_tag#"''${tag_prefix}"}"
|
||
fi
|
||
if [[ -n "$tag_converter" ]]; then
|
||
echo "Running '$last_tag' through: $tag_converter"
|
||
last_tag="$(echo "''${last_tag}" | ''${tag_converter})"
|
||
fi
|
||
else
|
||
last_tag="0"
|
||
fi
|
||
if [[ ! "$last_tag" =~ ^[[:digit:]] ]]; then
|
||
echo "Last tag '$last_tag' does not start with a digit" > /dev/stderr
|
||
exit 1
|
||
fi
|
||
new_version="$last_tag-unstable-$commit_date"
|
||
popd
|
||
# rm -rf "$tmpdir"
|
||
|
||
# update the nix expression
|
||
update-source-version \
|
||
"$UPDATE_NIX_ATTR_PATH" \
|
||
"$new_version" \
|
||
--rev="$commit_sha"
|
||
'';
|
||
};
|
||
|
||
in
|
||
[
|
||
(lib.getExe updateScript)
|
||
"--url=${builtins.toString url}"
|
||
"--tag-format=${tagFormat}"
|
||
]
|
||
++ lib.optionals (branch != null) [ "--branch=${branch}" ]
|
||
++ lib.optionals (tagPrefix != null) [ "--tag-prefix=${tagPrefix}" ]
|
||
++ lib.optionals (tagConverter != null) [ "--tag-converter=${tagConverter}" ]
|
||
++ lib.optionals hardcodeZeroVersion [ "--hardcode-zero-version" ]
|
||
++ lib.optionals shallowClone [ "--shallow-clone" ]
|