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Diffstat (limited to 'src')
| -rw-r--r-- | src/lock | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/lock b/src/lock new file mode 100644 index 0000000..22191fe --- /dev/null +++ b/src/lock @@ -0,0 +1,28 @@ +lock() { + + if [[ -f "$1" ]]; then + echo "$1 is not a lock directory." + exit 1 + fi + + if mkdir "$1" &>/dev/null; then + echo "lock $1 created" >&2 + else + echo "lock $1 found, waiting for unlock" >&2 + while true; do + sleep 2; + if [[ ! -d "$1" ]]; then + return + fi + done + fi; + +} + +if [[ "$#" -eq "1" ]]; then + lock "$1" +else + echo "please supply one argument: the lock directory." + exit 1 +fi + |