68 lines
2.1 KiB
Bash
Executable File
68 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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repository="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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expected_repository="$HOME/yawn"
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state_directory="$HOME/.local/state/yawn"
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deployed_revision_file="$state_directory/deployed-revision"
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compose=(docker compose --project-name yawn --project-directory "$repository" --file "$repository/compose.yaml")
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if [[ "$repository" != "$expected_repository" ]]; then
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printf 'Expected the repository at %s, found %s\n' "$expected_repository" "$repository" >&2
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exit 1
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fi
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for command in git docker flock; do
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if ! command -v "$command" >/dev/null 2>&1; then
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printf 'Missing required command: %s\n' "$command" >&2
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exit 1
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fi
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done
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if ! docker compose version >/dev/null 2>&1; then
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printf 'Docker Compose v2 is required.\n' >&2
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exit 1
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fi
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mkdir -p "$state_directory"
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exec 9>"$state_directory/deploy.lock"
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if ! flock -n 9; then
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printf 'Another Yawn deployment is already running.\n'
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exit 0
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fi
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cd "$repository"
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if [[ "$(git branch --show-current)" != "main" ]]; then
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printf 'Deployments must run from the main branch.\n' >&2
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exit 1
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fi
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if [[ -n "$(git status --porcelain --untracked-files=normal)" ]]; then
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printf 'Refusing to deploy a checkout with local changes.\n' >&2
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exit 1
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fi
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git fetch origin main
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remote_revision="$(git rev-parse FETCH_HEAD)"
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current_revision="$(git rev-parse HEAD)"
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deployed_revision=""
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if [[ -f "$deployed_revision_file" ]]; then
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read -r deployed_revision <"$deployed_revision_file"
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fi
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container="$("${compose[@]}" ps -q yawn 2>/dev/null || true)"
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container_status="missing"
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if [[ -n "$container" ]]; then
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container_status="$(docker inspect --format '{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}' "$container" 2>/dev/null || true)"
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fi
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if [[ "$current_revision" == "$remote_revision" &&
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"$deployed_revision" == "$remote_revision" &&
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"$container_status" == "healthy" ]]; then
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printf 'Yawn is already running revision %s.\n' "${remote_revision:0:12}"
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exit 0
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fi
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printf 'Deploying revision %s...\n' "${remote_revision:0:12}"
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flock -u 9
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exec 9>&-
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"$repository/server/deploy-docker.sh"
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