asdf/lib/commands/update.sh
2018-12-01 21:07:44 -05:00

41 lines
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update_command() {
local update_to_head=$1
(
cd "${ASDF_DIR}" || exit 1
if [ -f asdf_updates_disabled ] || ! git rev-parse --is-inside-work-tree &> /dev/null; then
echo "Update command disabled. Please use the package manager that you used to install asdf to upgrade asdf."
else
do_update "$update_to_head"
fi
)
}
do_update() {
local update_to_head=$1
if [ "$update_to_head" = "--head" ]; then
# Update to latest on the master branch
git checkout master
# Pull down the latest changes on master
git pull origin master
echo "Updated asdf to latest on the master branch"
else
# Update to latest release
git fetch origin --tags || exit 1
tag=$(git tag | sort_versions | sed '$!d') || exit 1
# Update
git checkout "$tag" || exit 1
echo "Updated asdf to release $tag"
fi
}
# stolen from https://github.com/rbenv/ruby-build/pull/631/files#diff-fdcfb8a18714b33b07529b7d02b54f1dR942
sort_versions() {
sed 'h; s/[+-]/./g; s/.p\([[:digit:]]\)/.z\1/; s/$/.z/; G; s/\n/ /' | \
LC_ALL=C sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n | awk '{print $2}'
}