diff options
Diffstat (limited to 'functions')
| -rwxr-xr-x | functions/lockfile.sh | 42 |
1 files changed, 20 insertions, 22 deletions
diff --git a/functions/lockfile.sh b/functions/lockfile.sh index cf7e22d5f..b467d25f3 100755 --- a/functions/lockfile.sh +++ b/functions/lockfile.sh @@ -9,40 +9,38 @@ ## under certain conditions; see COPYING for details. -Check_lockfile () +Acquire_lockfile () { - FILE="${1}" + local FILE="${1:-.lock}" + Check_lockfile "${FILE}" + Create_lockfile "${FILE}" +} - if [ -z "${FILE}" ] - then - FILE=".build/lock" - fi +Check_lockfile () +{ + local FILE="${1}" - # Checking lock file - if [ -f "${FILE}" ] - then - Echo_error "${PROGRAM} locked" + if [ -f "${FILE}" ]; then + Echo_error "${PROGRAM} already locked" exit 1 fi } Create_lockfile () { - FILE="${1}" - - if [ -z "${FILE}" ] - then - FILE=".build/lock" - fi + local FILE="${1}" - DIRECTORY="$(dirname ${FILE})" - - # Creating lock directory - mkdir -p "${DIRECTORY}" - - # Creating lock trap + # Create lock trap + # This automatically removes the lock file in certain conditions trap 'ret=${?}; '"rm -f \"${FILE}\";"' exit ${ret}' EXIT HUP INT QUIT TERM # Creating lock file touch "${FILE}" } + +Remove_lockfile () +{ + local FILE="${1:-.lock}" + + rm -f "${FILE}" +} |