[I] `dmn-marshaller-backend-compatibility-tester` install script failing on Windows [incubator-kie-tools]

["thiagoelg (via GitHub)" <gi...@apache.org>]

thiagoelg opened a new issue, #3880:
URL: https://github.com/apache/incubator-kie-tools/issues/3880

   If Windows has `WSL` installed it will make the command `bash` execute WSL by default instead of `git-bash`. This is a problem because the `jbang` library makes the following comparison to know how to install the `jbang` binary:
   
   ```js
   if (shell.which("curl") && shell.which("bash")) {
     console.log("using curl + bash:", argLine);
     cmdResult = shell.exec("curl -Ls https://sh.jbang.dev | bash -s - " + argLine);
   } else if (shell.which("powershell")) {
     console.log("using powershell:", argLine);
     shell.exec('echo iex "& { $(iwr -useb https://ps.jbang.dev) } $args" > %TEMP%/jbang.ps1');
     cmdResult = shell.exec('powershell -Command "%TEMP%/jbang.ps1 ' + argLine + '"');
   }
   ```
   
   Having `bash` pointing to WSL means that the `jbang` binary is being installed inside WSL and it's not available on Windows itself.
   
   
   Looking at the library I propose 3 possible fixes:
   1. Open a PR on the `jbang` npm library with a fix (checking if `bash` points to `git-bash` or the `WSL bash`, falling back to the Powershell install method);
   2. Remove the library from our dependencies and write our own script to install the `jbang` binary during bootstrap;
   3. Remove the library and add `jbang` as a repository dependency via `kieTools.requiredPreinstalledCliCommands` on the `package.json`.


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