jinterface: move from system dependency to custom repository

Also updated README with instructions for using other versions of Erlang.

README.md

@@ -83,66 +83,38 @@ that end, the `jinterface` library must match the version of Erlang installed
 in your machine. If your installation of Erlang is not OTP 26, you should indicate
 the version of `jinterface` that matches the version of Erlang in your system.
 
-1. Locate the directory in which Erlang is installed (typically `/usr/lib/erlang`).
-Other common locations are `/usr/local/lib/erlang` (admin-compiled), `~/.local/lib/erlang`
-(user-compiled) and `/usr/local/Cellar/erlang/VERSION/lib/erlang` (Homebrew on macOS).
-2. Enter the Erlang installation directory and look for a folder `lib`, and in it,
-a folder called `jinterface-VERSION`.
+1. Enter an Erlang shell with `erl` and check the version that shows at startup.
+2. Look up the version of `jinterface` required by your version of Erlang/OTP on
+[this table](https://mist.dsic.upv.es/git/program-slicing/erlang-jinterface#usage).
 3. When running `make` commands, use:
 ```bash
-make MVN_OPTIONS="-Djinterface.version=VERSION -Djinterface.erlangRoot=ERLANG_INSTALLATION"
+make MVN_OPTIONS="-Djinterface.version=VERSION"
 ```
-The default values are `VERSION=1.14` and `ERLANG_INSTALLATION=/usr/lib/erlang`.
+The default values can be seen at [e-Knife/pom.xml](e-Knife/pom.xml).
 
 With this change, you can now build the project with past and future versions of Erlang.
 
-#### Copy jinterface from existing installation
+#### The table in step 2 doesn't have a compatible version with my system!
 
-Your Erlang distribution will most likely be installed at `/usr/lib/erlang`,
-`/usr/local/lib/erlang`, `~/.local/lib/erlang` or `/usr/local/Cellar/erlang/VERSION/lib/erlang`.
-Then, the library is located in `lib/jinterface-VERSION/java_src`
+In that case, you can specify the location for `jinterface` in your system by editing `e-Knife/pom.xml`:
 
-In some distributions (such as Ubuntu), you may need to install the `erlang-jinterface`
-package.
-
-As an example:
-
-```bash
-pkg="com/ericsson/otp/erlang"
-erlang="/usr/lib/erlang"
-rm -rf e-Knife/src/main/java/$pkg
-mv $erlang/lib/jinterface-1.12/java_src/$pkg e-Knife/src/main/java/$pkg
-```
-
-#### Download jinterface from the repository
-
-Check the version of OTP that you have installed by running the following snippet ([credit][so1]):
-
-```bash
-erl -eval '{ok, Version} = file:read_file(filename:join([code:root_dir(), "releases", erlang:system_info(otp_release), "OTP_VERSION"])), io:fwrite(Version), halt().' -noshell
+```xml
+<dependency>
+  <groupId>program-slicing</groupId>
+  <artifactId>erlang-jinterface</artifactId>
+  <scope>system</scope>
+  <version>VERSION</version>
+  <systemPath>ERLANG_ROOT_PATH/lib/jinterface-VERSION/priv/OtpErlang.jar</systemPath>
+</dependency>
 ```
 
-Then, download the corresponding release:
+However, this means that `make` and `mvn package` commands won't include the `jinterface` jar, and you
+will have to launch e-Knife with:
 
-```bash
-VERSION=22.2.7
-wget https://github.com/erlang/otp/archive/OTP-$VERSION.tar.gz
 ```
-
-Finally, extract `lib/jinterface-$ver/java_src` to the corresponding location:
-```bash
-VERSION=22.2.7
-pkg="com/ericsson/otp/erlang"
-ji_path="lib/jinterface-1.10.1/java_src"
-dest="e-Knife/src/main/java/$pkg"
-rm -rf $dest
-tar -xf OTP-$VERSION.tar.gz otp-OTP-$VERSION/$ji_path/$pkg
-mv otp-OTP-$VERSION/$ji_path/$pkg $dest
-rm -rf otp-OTP-$VERSION/
+java -cp e-Knife.jar:JINTERFACE_JAR eknife.EKnife [ARGUMENTS]
 ```
 
-[so1]: https://stackoverflow.com/a/34326368
-
 ### UnsupportedClassVersionError: eknife/EKnife has been compiled by a more recent version of the Java Runtime
 
 e-Knife requires at least Java 17. Your version may be lower. You can check it

e-Knife/pom.xml

@@ -14,7 +14,6 @@
 
     <properties>
         <jinterface.version>1.14</jinterface.version>
-        <jinterface.erlangRoot>/usr/lib/erlang</jinterface.erlangRoot>
     </properties>
 
     <build>
@@ -61,13 +60,18 @@
             <artifactId>EDG</artifactId>
             <version>1.1.0</version>
         </dependency>
-    	<dependency>
-            <groupId>com.ericsson.otp</groupId>
-            <artifactId>jinterface</artifactId>
-            <scope>system</scope>
+        <dependency>
+            <groupId>program-slicing</groupId>
+            <artifactId>erlang-jinterface</artifactId>
             <version>${jinterface.version}</version>
-            <systemPath>${jinterface.erlangRoot}/lib/jinterface-${jinterface.version}/priv/OtpErlang.jar</systemPath>
         </dependency>
+
     </dependencies>
 
+    <repositories>
+        <repository>
+            <id>mist-gitlab-jinterface</id>
+            <url>https://mist.dsic.upv.es/git/api/v4/projects/45/packages/maven</url>
+        </repository>
+    </repositories>
 </project>