[#407] datascript feature

deps.edn

@@ -14,7 +14,8 @@
         com.cognitect/transit-clj {:mvn/version "1.0.324"}
         seancorfield/next.jdbc {:mvn/version "1.0.424"}
         org.postgresql/postgresql {:mvn/version "42.2.12"}
-        org.hsqldb/hsqldb {:mvn/version "2.4.0"}}
+        org.hsqldb/hsqldb {:mvn/version "2.4.0"}
+        datascript {:mvn/version "0.18.11"}}
  :aliases {:main
            {:main-opts ["-m" "babashka.main"]}
            :profile

doc/build.md

@@ -75,8 +75,9 @@ Babashka supports the following feature flags:
 | `BABASHKA_FEATURE_XML` | Includes the [clojure.data.xml](https://github.com/clojure/data.xml) library | `true` |
 | `BABASHKA_FEATURE_YAML` | Includes the [clj-yaml](https://github.com/clj-commons/clj-yaml) library | `true` |
 | `BABASHKA_FEATURE_JDBC` | Includes the [next.jdbc](https://github.com/seancorfield/next-jdbc) library | `false`    |
-| `BABASHKA_FEATURE_POSTGRESQL` | Includes the [PostgresSQL](https://jdbc.postgresql.org/) JDBC driver |  `false`
+| `BABASHKA_FEATURE_POSTGRESQL` | Includes the [PostgresSQL](https://jdbc.postgresql.org/) JDBC driver |  `false` |
-| `BABASHKA_FEATURE_HSQLDB` | Includes the [HSQLDB](http://www.hsqldb.org/) JDBC driver | `false`
+| `BABASHKA_FEATURE_HSQLDB` | Includes the [HSQLDB](http://www.hsqldb.org/) JDBC driver | `false` |
+| `BABASHKA_FEATURE_DATASCRIPT` | Includes [datascript](https://github.com/tonsky/datascript) | `false` |
 
 To disable all of the above features, you can set `BABASHKA_LEAN` to `true`.
 

feature-datascript/babashka/impl/datascript.clj

@@ -0,0 +1,12 @@
+(ns babashka.impl.datascript
+  {:no-doc true}
+  (:require [datascript.core :as d]
+            [sci.impl.namespaces :refer [copy-var]]
+            [sci.impl.vars :as vars]))
+
+(def datascript-ns (vars/->SciNamespace 'datascript.core nil))
+
+(def datascript-namespace
+  {'create-conn (copy-var d/create-conn datascript-ns)
+   'transact!   (copy-var d/transact! datascript-ns)
+   'q           (copy-var d/q datascript-ns)})

project.clj

@@ -33,6 +33,8 @@
                            :dependencies [[org.clojure/data.csv "1.0.0"]]}
              :feature/transit {:source-paths ["feature-transit"]
                                :dependencies [[com.cognitect/transit-clj "1.0.324"]]}
+             :feature/datascript {:source-paths ["feature-datascript"]
+                                  :dependencies [[datascript "0.18.11"]]}
              :test [:feature/xml
                     :feature/yaml
                     :feature/postgresql
@@ -40,6 +42,7 @@
                     :feature/core-async
                     :feature/csv
                     :feature/transit
+                    :feature/datascript
                     {:dependencies [[clj-commons/conch "0.9.2"]
                                     [com.clojure-goes-fast/clj-async-profiler "0.4.1"]]}]
              :uberjar {:global-vars {*assert* false}

sci

@@ -1 +1 @@
-Subproject commit 87f6160dd84d569a93967b644761bb374d0204c3
+Subproject commit 67fd9bc9cbde315c78e5178d450094d2255b3414

script/uberjar

@@ -74,6 +74,13 @@ else
     BABASHKA_LEIN_PROFILES+=",-feature/transit"
 fi
 
+if [ "$BABASHKA_FEATURE_DATASCRIPT" = "true" ]
+then
+    BABASHKA_LEIN_PROFILES+=",+feature/datascript"
+else
+    BABASHKA_LEIN_PROFILES+=",-feature/datascript"
+fi
+
 if [ -z "$BABASHKA_JAR" ]; then
     lein with-profiles "$BABASHKA_LEIN_PROFILES,+reflection,-uberjar" do run
     lein with-profiles "$BABASHKA_LEIN_PROFILES" do clean, uberjar

script/uberjar.bat

@@ -58,6 +58,12 @@ if not "%BABASHKA_FEATURE_TRANSIT%"=="false" (
   set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/transit
 )
 
+if "%BABASHKA_FEATURE_DATASCRIPT%"=="true" (
+  set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,+feature/datascript
+) else (
+  set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/datascript
+)
+
 call lein with-profiles %BABASHKA_LEIN_PROFILES% bb "(+ 1 2 3)"
 
 call lein with-profiles %BABASHKA_LEIN_PROFILES%,+reflection,-uberjar do run

src/babashka/impl/features.clj

@@ -14,3 +14,4 @@
 (def jdbc? (= "true" (System/getenv "BABASHKA_FEATURE_JDBC")))
 (def postgresql? (= "true" (System/getenv "BABASHKA_FEATURE_POSTGRESQL")))
 (def hsqldb? (= "true" (System/getenv "BABASHKA_FEATURE_HSQLDB")))
+(def datascript? (= "true" (System/getenv "BABASHKA_FEATURE_DATASCRIPT")))

src/babashka/main.clj

@@ -70,6 +70,9 @@
 (when features/transit?
   (require '[babashka.impl.transit]))
 
+(when features/datascript?
+  (require '[babashka.impl.datascript]))
+
 (sci/alter-var-root sci/in (constantly *in*))
 (sci/alter-var-root sci/out (constantly *out*))
 (sci/alter-var-root sci/err (constantly *err*))
@@ -354,7 +357,8 @@ If neither -e, -f, or --socket-repl are specified, then the first argument that
     features/core-async? (assoc 'clojure.core.async @(resolve 'babashka.impl.async/async-namespace)
                                 'clojure.core.async.impl.protocols @(resolve 'babashka.impl.async/async-protocols-namespace))
     features/csv?  (assoc 'clojure.data.csv @(resolve 'babashka.impl.csv/csv-namespace))
-    features/transit? (assoc 'cognitect.transit @(resolve 'babashka.impl.transit/transit-namespace))))
+    features/transit? (assoc 'cognitect.transit @(resolve 'babashka.impl.transit/transit-namespace))
+    features/datascript? (assoc 'datascript.core @(resolve 'babashka.impl.datascript/datascript-namespace))))
 
 (def bindings
   {'java.lang.System/exit exit ;; override exit, so we have more control