51 lines
1.4 KiB
Bash
51 lines
1.4 KiB
Bash
#!/usr/bin/env bash
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# Shared, process-safe lock for Gradle and IntelliJ platform test runs.
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# This file is sourced by jaigradle and jaitest; it is not a standalone command.
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JAI_GRADLE_LOCK_DIR="${JAI_GRADLE_LOCK_DIR:-.gradle-test.lock}"
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JAI_GRADLE_LOCK_PID_FILE="$JAI_GRADLE_LOCK_DIR/pid"
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jai_gradle_lock_acquire() {
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if [[ "${JAI_GRADLE_LOCK_HELD:-0}" == "1" ]]; then
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return 0
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fi
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local reported=0
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while ! mkdir "$JAI_GRADLE_LOCK_DIR" 2>/dev/null; do
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if [[ -f "$JAI_GRADLE_LOCK_PID_FILE" ]]; then
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local owner
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owner=$(<"$JAI_GRADLE_LOCK_PID_FILE")
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if [[ "$owner" =~ ^[0-9]+$ ]] && ! kill -0 "$owner" 2>/dev/null; then
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rm -rf "$JAI_GRADLE_LOCK_DIR"
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continue
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fi
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else
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# A process can be killed between mkdir and writing its PID. Give that
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# tiny window a chance to finish, then reclaim the incomplete lock.
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sleep 1
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if [[ ! -f "$JAI_GRADLE_LOCK_PID_FILE" ]]; then
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rm -rf "$JAI_GRADLE_LOCK_DIR"
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continue
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fi
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fi
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if ((reported == 0)); then
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echo "Waiting for another Gradle/test run in this worktree..." >&2
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reported=1
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fi
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sleep 1
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done
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printf '%s\n' "$$" >"$JAI_GRADLE_LOCK_PID_FILE"
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JAI_GRADLE_LOCK_HELD=1
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JAI_GRADLE_LOCK_OWNER_PID=$$
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export JAI_GRADLE_LOCK_HELD JAI_GRADLE_LOCK_OWNER_PID
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}
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jai_gradle_lock_release() {
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if [[ "${JAI_GRADLE_LOCK_OWNER_PID:-}" == "$$" ]]; then
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rm -rf "$JAI_GRADLE_LOCK_DIR"
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unset JAI_GRADLE_LOCK_OWNER_PID JAI_GRADLE_LOCK_HELD
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fi
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}
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