mirror of
https://github.com/HuwCampbell/grenade.git
synced 2024-11-28 19:29:08 +03:00
122 lines
2.8 KiB
Bash
Executable File
122 lines
2.8 KiB
Bash
Executable File
#!/bin/sh -eu
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fetch_latest () {
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if [ -z ${MAFIA_TEST_MODE+x} ]; then
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TZ=$(date +"%T")
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curl --silent "https://raw.githubusercontent.com/ambiata/mafia/master/script/mafia?$TZ"
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else
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cat ../script/mafia
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fi
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}
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latest_version () {
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git ls-remote https://github.com/ambiata/mafia | grep refs/heads/master | cut -f 1
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}
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local_version () {
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awk '/^# Version: / { print $3; exit 0; }' $0
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}
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run_upgrade () {
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MAFIA_TEMP=$(mktemp 2>/dev/null || mktemp -t 'upgrade_mafia')
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clean_up () {
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rm -f "$MAFIA_TEMP"
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}
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trap clean_up EXIT
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MAFIA_CUR="$0"
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if [ -L "$MAFIA_CUR" ]; then
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echo 'Refusing to overwrite a symlink; run `upgrade` from the canonical path.' >&2
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exit 1
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fi
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echo "Checking for a new version of mafia ..."
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fetch_latest > $MAFIA_TEMP
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LATEST_VERSION=$(latest_version)
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echo "# Version: $LATEST_VERSION" >> $MAFIA_TEMP
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if ! cmp $MAFIA_CUR $MAFIA_TEMP >/dev/null 2>&1; then
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mv $MAFIA_TEMP $MAFIA_CUR
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chmod +x $MAFIA_CUR
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echo "New version found and upgraded. You can now commit it to your git repo."
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else
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echo "You have latest mafia."
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fi
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}
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exec_mafia () {
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MAFIA_VERSION=$(local_version)
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if [ "x$MAFIA_VERSION" = "x" ]; then
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# If we can't find the mafia version, then we need to upgrade the script.
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run_upgrade
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else
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MAFIA_BIN=$HOME/.ambiata/mafia/bin
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MAFIA_FILE=mafia-$MAFIA_VERSION
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MAFIA_PATH=$MAFIA_BIN/$MAFIA_FILE
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[ -f "$MAFIA_PATH" ] || {
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# Create a temporary directory which will be deleted when the script
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# terminates. Unfortunately `mktemp` doesn't behave the same on
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# Linux and OS/X so we need to try two different approaches.
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MAFIA_TEMP=$(mktemp -d 2>/dev/null || mktemp -d -t 'exec_mafia')
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# Create a temporary file in MAFIA_BIN so we can do an atomic copy/move dance.
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mkdir -p $MAFIA_BIN
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clean_up () {
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rm -rf "$MAFIA_TEMP"
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}
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trap clean_up EXIT
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echo "Building $MAFIA_FILE in $MAFIA_TEMP"
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( cd "$MAFIA_TEMP"
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git clone https://github.com/ambiata/mafia
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cd mafia
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git reset --hard $MAFIA_VERSION
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bin/bootstrap ) || exit $?
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MAFIA_PATH_TEMP=$(mktemp --tmpdir=$MAFIA_BIN $MAFIA_FILE-XXXXXX 2>/dev/null || TMPDIR=$MAFIA_BIN mktemp -t $MAFIA_FILE)
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clean_up_temp () {
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clean_up
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rm -f "$MAFIA_PATH_TEMP"
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}
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trap clean_up_temp EXIT
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cp "$MAFIA_TEMP/mafia/.cabal-sandbox/bin/mafia" "$MAFIA_PATH_TEMP"
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chmod 755 "$MAFIA_PATH_TEMP"
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mv "$MAFIA_PATH_TEMP" "$MAFIA_PATH"
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clean_up_temp
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}
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exec $MAFIA_PATH "$@"
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fi
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}
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#
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# The actual start of the script.....
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#
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if [ $# -gt 0 ]; then
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MODE="$1"
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else
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MODE=""
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fi
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case "$MODE" in
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upgrade) shift; run_upgrade "$@" ;;
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*) exec_mafia "$@"
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esac
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# Version: a1b39ee8ac1969ed2e891b9062d079be75863e99
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