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68 lines
2.6 KiB
Bash
Executable file
68 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Wakdo - migration runner.
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#
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# Applique les fichiers db/migrations/*.sql dans l'ordre lexicographique,
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# de maniere idempotente : une table schema_migrations enregistre les fichiers
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# deja appliques, donc relancer ne rejoue que les nouvelles migrations.
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#
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# Cible : le service docker-compose `wakdo-db` (MariaDB). Lance depuis l'hote
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# (c'est ce que `make migrate` appellera). Identifiants lus dans .env.
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#
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# Usage :
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# bash db/migrate.sh # applique les migrations en attente
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# bash db/migrate.sh --status # liste l'etat sans rien appliquer
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#
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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ENV_FILE="$ROOT/.env"
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CONTAINER="${WAKDO_DB_CONTAINER:-wakdo-db}"
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MIGRATIONS_DIR="$ROOT/db/migrations"
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[ -f "$ENV_FILE" ] || { echo "ERREUR : .env introuvable ($ENV_FILE)" >&2; exit 1; }
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DB_NAME="$(grep -E '^DB_NAME=' "$ENV_FILE" | cut -d= -f2- | tr -d '[:space:]')"
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DB_ROOT_PASSWORD="$(grep -E '^DB_ROOT_PASSWORD=' "$ENV_FILE" | cut -d= -f2-)"
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: "${DB_NAME:?DB_NAME absent de .env}"
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: "${DB_ROOT_PASSWORD:?DB_ROOT_PASSWORD absent de .env}"
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# Client mariadb dans le conteneur (root : les migrations sont des operations DDL).
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db() { docker exec -i "$CONTAINER" mariadb -uroot -p"$DB_ROOT_PASSWORD" "$@"; }
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# Le conteneur doit etre en marche.
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docker exec "$CONTAINER" true 2>/dev/null || { echo "ERREUR : conteneur $CONTAINER non demarre (make up)" >&2; exit 1; }
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# Journal des migrations appliquees.
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db "$DB_NAME" -e "CREATE TABLE IF NOT EXISTS schema_migrations (
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filename VARCHAR(255) NOT NULL PRIMARY KEY,
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applied_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;"
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shopt -s nullglob
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files=("$MIGRATIONS_DIR"/*.sql)
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[ ${#files[@]} -gt 0 ] || { echo "[migrate] aucune migration dans $MIGRATIONS_DIR"; exit 0; }
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if [ "${1:-}" = "--status" ]; then
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echo "[migrate] etat des migrations (base $DB_NAME) :"
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for f in "${files[@]}"; do
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base="$(basename "$f")"
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n="$(db "$DB_NAME" -N -s -e "SELECT COUNT(*) FROM schema_migrations WHERE filename='$base';")"
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[ "$n" = "0" ] && echo " PENDING $base" || echo " applied $base"
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done
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exit 0
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fi
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applied=0
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for f in "${files[@]}"; do
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base="$(basename "$f")"
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n="$(db "$DB_NAME" -N -s -e "SELECT COUNT(*) FROM schema_migrations WHERE filename='$base';")"
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if [ "$n" = "0" ]; then
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echo "[migrate] application de $base ..."
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db "$DB_NAME" < "$f"
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db "$DB_NAME" -e "INSERT INTO schema_migrations (filename) VALUES ('$base');"
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applied=$((applied + 1))
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else
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echo "[migrate] $base deja applique, ignore"
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fi
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done
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echo "[migrate] termine ($applied nouvelle(s) migration(s) appliquee(s))."
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