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July 1, 2022 05:20
Babashka Tasks for PostgreSQL Backups
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| ; run `bb backup` to backup database | |
| ; run `bb restore` to restore latest backup | |
| {:min-bb-version "0.4.0", | |
| :tasks {; CONSTANTS | |
| db-name "dev_blog", | |
| backup-dir "backups", | |
| now (str (java.time.LocalDateTime/now)), | |
| ; TASKS | |
| create-backup-dir {:depends [backup-dir], :task (babashka.fs/create-dirs backup-dir)}, | |
| backup {:depends [db-name now backup-dir create-backup-dir], | |
| :task (let [backup-path (str backup-dir "/" db-name "_backup:" now ".dump") | |
| backup-command (str "pg_dump --format=custom " db-name)] | |
| (do (println (str "Backing up database: " db-name)) | |
| (println (str "Backup location: " backup-path)) | |
| (if (-> (shell {:out backup-path} backup-command) | |
| (:exit) | |
| (= 0)) | |
| (println "Backup successful! 🚀") | |
| (println "Errors occurred during backup ⚠️"))))}, | |
| restore {:depends [db-name backup-dir], | |
| :task (let [latest-backup-path (-> (babashka.fs/list-dir backup-dir) | |
| (sort) | |
| (reverse) | |
| (first) | |
| (str)) | |
| restore-command (str "pg_restore --clean --dbname=" db-name " " latest-backup-path) | |
| do-restore? (do (println "Latest backup: " latest-backup-path) | |
| (println "Restore command: " restore-command) | |
| (println "Restore this backup? (y/n): ") | |
| (= (first (line-seq (clojure.java.io/reader *in*))) "y"))] | |
| (if do-restore? | |
| (do (println "Restoring database... ") | |
| (if (-> (shell restore-command) | |
| (:exit) | |
| (= 0)) | |
| (println "Restoration successful! 🚀") | |
| (println "Errors occurred during restoration ⚠️"))) | |
| (println "Skipping restoration...")))}}} |
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