Add support for SQLite via a BABASHKA_FEATURE_SQLITE feature flag (#1079)

* implement native sqlite support as a feature flag following [1]

([1] is mentioned as a checklist of sorts as to how to add a new 
feature flag in [2])

[1] 13f65f05ae
[2] https://github.com/babashka/babashka/blob/master/doc/build.md

* bump to latest sqlite-jdbc, remove some no longer needed config+libs

based on feedback from borkdude here [1], bump xerial/sqlite-jdbc
3.36.0.3, which includes the graalvm classes and resource config
previously implemented via ericdallo/sqlite-jni-graal-fix and a `-H`
flag in `script/compile`

[1]: https://github.com/babashka/babashka/pull/1079#issuecomment-980533178

doc/build.md

@@ -107,6 +107,7 @@ Babashka supports the following feature flags:
 | `BABASHKA_FEATURE_TEST_CHECK` | Includes the [clojure.test.check](https://github.com/clojure/test.check) library | `true` |
 | `BABASHKA_FEATURE_SPEC_ALPHA` | Includes the [clojure.spec.alpha](https://github.com/clojure/spec.alpha) library (WIP) | `false` |
 | `BABASHKA_FEATURE_JDBC` | Includes the [next.jdbc](https://github.com/seancorfield/next-jdbc) library | `false`    |
+| `BABASHKA_FEATURE_SQLITE` | Includes the [sqlite-jdbc](https://github.com/xerial/sqlite-jdbc) library | `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_ORACLEDB` | Includes the [Oracle](https://www.oracle.com/database/technologies/appdev/jdbc.html) JDBC driver | `false` |

project.clj

@@ -33,6 +33,7 @@
                             :dependencies [[clj-commons/clj-yaml "0.7.107"]]}
              :feature/jdbc {:source-paths ["feature-jdbc"]
                             :dependencies [[seancorfield/next.jdbc "1.1.610"]]}
+             :feature/sqlite [:feature/jdbc {:dependencies [[org.xerial/sqlite-jdbc "3.36.0.3"]]}]
              :feature/postgresql [:feature/jdbc {:dependencies [[org.postgresql/postgresql "42.2.18"]]}]
              ;:feature/oracledb [:feature/jdbc {:dependencies [[com.oracle.database.jdbc/ojdbc8 "19.8.0.0"]]}]
              :feature/oracledb [:feature/jdbc {:dependencies [[io.helidon.integrations.db/ojdbc "2.1.0"]]}] ; ojdbc10 + GraalVM config, by Oracle

script/uberjar

@@ -35,6 +35,13 @@ else
     BABASHKA_LEIN_PROFILES+=",-feature/jdbc"
 fi
 
+if [ "$BABASHKA_FEATURE_SQLITE" = "true" ]
+then
+    BABASHKA_LEIN_PROFILES+=",+feature/sqlite"
+else
+    BABASHKA_LEIN_PROFILES+=",-feature/sqlite"
+fi
+
 if [ "$BABASHKA_FEATURE_POSTGRESQL" = "true" ]
 then
     BABASHKA_LEIN_PROFILES+=",+feature/postgresql"

script/uberjar.bat

@@ -16,6 +16,12 @@ if "%BABASHKA_FEATURE_JDBC%"=="true" (
   set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/jdbc
 )
 
+if "%BABASHKA_FEATURE_SQLITE%"=="true" (
+  set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,+feature/sqlite
+) else (
+  set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/sqlite
+)
+
 if "%BABASHKA_FEATURE_POSTGRESQL%"=="true" (
   set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,+feature/postgresql
 ) else (

src/babashka/impl/features.clj

@@ -19,6 +19,7 @@
 
 ;; excluded by default
 (def jdbc? (= "true" (System/getenv "BABASHKA_FEATURE_JDBC")))
+(def sqlite? (= "true" (System/getenv "BABASHKA_FEATURE_SQLITE")))
 (def postgresql? (= "true" (System/getenv "BABASHKA_FEATURE_POSTGRESQL")))
 (def oracledb? (= "true" (System/getenv "BABASHKA_FEATURE_ORACLEDB")))
 (def hsqldb? (= "true" (System/getenv "BABASHKA_FEATURE_HSQLDB")))

src/babashka/main.clj

@@ -253,6 +253,7 @@ Use bb run --help to show this help output.
     features/xml?
     features/yaml?
     features/jdbc?
+    features/sqlite?
     features/postgresql?
     features/hsqldb?
     features/oracledb?