mhoennigandClaude Fable 5
e1f3f5f384
Port of the legacy host's docker-prune.timer: 02:00 host time, Persistent=true, docker system prune -af — but without --volumes, so the per-repository Gradle cache volumes survive. The units are host-global; several GitTally instances share one timer. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
97 lines
3.4 KiB
Kotlin
97 lines
3.4 KiB
Kotlin
package de.hoennig.gittally.commands
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import java.nio.file.Path
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/**
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* Generates the content of the systemd user unit and its `EnvironmentFile` for running
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* `gittally server` as a service — the shape of the legacy `generate_systemd_config`,
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* without the self-copy/self-update machinery (the unit points at the jar in place).
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*/
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object SystemdServiceFiles {
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const val ENV_FILE_NAME = "gittally.env"
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/** Host-global unit names of the nightly Docker cleanup — shared by all GitTally repositories on the host. */
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const val PRUNE_SERVICE_NAME = "gittally-docker-prune.service"
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const val PRUNE_TIMER_NAME = "gittally-docker-prune.timer"
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/** Per-repository unit name, because one GitTally instance serves exactly one repository. */
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fun unitName(repoRoot: Path): String = "gittally-${sanitize(repoRoot.fileName.toString())}.service"
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fun unitFileContent(
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repoRoot: Path,
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javaExecutable: Path,
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jarPath: Path,
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envFile: Path,
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): String =
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"""
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[Unit]
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Description=GitTally CI for ${repoRoot.fileName}
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Wants=network-online.target
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After=network-online.target docker.service
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[Service]
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Type=simple
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WorkingDirectory=${systemdPath("$repoRoot")}
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EnvironmentFile=-${systemdPath("$envFile")}
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ExecStart=${systemdQuote("$javaExecutable")} ${'$'}JAVA_OPTS -jar ${systemdQuote("$jarPath")} server
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Restart=always
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RestartSec=30
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[Install]
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WantedBy=default.target
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""".trimIndent() + "\n"
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/**
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* Nightly Docker cleanup like the legacy `docker-prune.service`, but without `--volumes`:
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* the per-repository Gradle cache volumes must survive the cleanup.
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* Running containers and their images are never pruned, so an in-flight build is safe.
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*/
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fun pruneServiceContent(): String =
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"""
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[Unit]
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Description=Clean up unused Docker containers and images (GitTally)
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[Service]
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Type=oneshot
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# skipped (not failed) on hosts without a docker CLI
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ExecCondition=sh -c 'command -v docker'
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ExecStart=docker system prune -af
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""".trimIndent() + "\n"
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/** Fires before the usual auto-build slots, `Persistent=true` catches missed runs after downtime. */
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fun pruneTimerContent(): String =
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"""
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[Unit]
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Description=Nightly Docker cleanup before the auto builds (GitTally)
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[Timer]
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OnCalendar=*-*-* 02:00:00
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Persistent=true
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[Install]
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WantedBy=timers.target
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""".trimIndent() + "\n"
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fun envFileContent(): String =
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"""
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# EnvironmentFile for the GitTally systemd service.
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# GitTally itself is configured via .gittally.yml and .git/gittally/.gittally.yml,
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# not via environment variables; this file only tunes the JVM process.
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#JAVA_OPTS=-Xmx256m
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""".trimIndent() + "\n"
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private fun sanitize(name: String): String = name.replace(Regex("[^A-Za-z0-9_.-]"), "-")
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/** Escape `%` specifiers in systemd unit values (legacy `systemd_path`). */
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private fun systemdPath(value: String): String = value.replace("%", "%%")
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/** Quote one `ExecStart` word (legacy `systemd_quote`). */
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private fun systemdQuote(value: String): String =
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"\"" +
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value
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.replace("\\", "\\\\")
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.replace("\"", "\\\"")
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.replace("%", "%%") +
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"\""
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}
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