Files
logseq/deps/db/script/query.cljs
2024-07-10 22:33:44 +08:00

76 lines
3.2 KiB
Clojure

(ns query
"An example script that queries any db graph from the commandline e.g.
$ yarn -s nbb-logseq script/query.cljs db-name '[:find (pull ?b [:block/name :block/title]) :where [?b :block/created-at]]'"
(:require [datascript.core :as d]
[clojure.edn :as edn]
[logseq.db.sqlite.cli :as sqlite-cli]
[logseq.db.frontend.rules :as rules]
[nbb.core :as nbb]
[clojure.string :as string]
[clojure.pprint :as pprint]
[babashka.cli :as cli]
["child_process" :as child-process]
["path" :as node-path]
["os" :as os]))
(defn- sh
"Run shell cmd synchronously and print to inherited streams by default. Aims
to be similar to babashka.tasks/shell"
[cmd opts]
(child-process/spawnSync (first cmd)
(clj->js (rest cmd))
(clj->js (merge {:stdio "inherit"} opts))))
(defn- get-dir-and-db-name
"Gets dir and db name for use with open-db!"
[graph-dir]
(if (string/includes? graph-dir "/")
(let [graph-dir'
(node-path/join (or js/process.env.ORIGINAL_PWD ".") graph-dir)]
((juxt node-path/dirname node-path/basename) graph-dir'))
[(node-path/join (os/homedir) "logseq" "graphs") graph-dir]))
(def spec
"Options spec"
{:help {:alias :h
:desc "Print help"}
:verbose {:alias :v
:desc "Print more info"}
:raw {:alias :r
:desc "Print results plainly. Useful when piped to bb"}
:entity {:alias :e
:coerce []
:desc "Lookup entities instead of query"}})
(defn -main [args]
(let [[graph-dir & args'] args
options (cli/parse-opts args' {:spec spec})
_ (when (or (nil? graph-dir) (:help options))
(println (str "Usage: $0 GRAPH-NAME [& ARGS] [OPTIONS]\nOptions:\n"
(cli/format-opts {:spec spec})))
(js/process.exit 1))
[dir db-name] (get-dir-and-db-name graph-dir)
conn (sqlite-cli/open-db! dir db-name)
results (if (:entity options)
(map #(when-let [ent (d/entity @conn
(if (string? %) (edn/read-string %) %))]
(cond-> (into {:db/id (:db/id ent)} ent)
(seq (:block/properties ent))
(update :block/properties (fn [props] (map (fn [m] (into {} m)) props)))))
(:entity options))
;; assumes no :in are in queries
(let [query (into (edn/read-string (first args')) [:in '$ '%])
res (d/q query @conn (rules/extract-rules rules/db-query-dsl-rules))]
;; Remove nesting for most queries which just have one :find binding
(if (= 1 (count (first res))) (mapv first res) res)))]
(when (:verbose options) (println "DB contains" (count (d/datoms @conn :eavt)) "datoms"))
(if (:raw options)
(prn results)
(if (zero? (.-status (child-process/spawnSync "which" #js ["puget"])))
(sh ["puget"] {:input (pr-str results) :stdio ["pipe" "inherit" "inherit"]})
(pprint/pprint results)))))
(when (= nbb/*file* (:file (meta #'-main)))
(-main *command-line-args*))