packBashTemplate not actually implemented

[carueda]

First off, thanks for this great tool.

I would like to generate a simplified launcher script (for example, not relying on javac to determine JAVA_HOME, and other unneeded stuff in my case). In the release notes I found the option packBashTemplate, which looked like exactly what I needed to accomplish that goal. Unfortunately, it seems this is not actually implemented.

Maybe I'm missing something. Thanks.

[ShashankReddy1804]

Hi carueda. Did you find any alternate for this, I was working on one of the migration project in older version I had packBashTemplate (sbt-pack, 0.7.4), now I need atleast (sbt-pack, 0.9.0)

[carueda]

Hi!

Unfortunately, the project related with this is not open source (otherwise I would point you to it), but, basically:

I created a task createDistribution dependent on pack:

val createDistribution = taskKey[Unit]("create java based distribution")

...

    packMain := Map("myapp" -> "org.example.foo.Main"),
    createDistribution := {
      val _ = pack.value
      import scala.sys.process._
      println(s"Creating java based distribution $myAppVersion ...")
      s"bin/distribution/create.sh $myAppVersion".!
    },

where create.sh, working on the result of sbt pack, incorporates a simplified launcher script

set -ue

VERSION=$1

DIST_NAME="myapp-$VERSION"
mkdir -p out
OUT_DIR="$(pwd)/out"
OUT_ZIP="$OUT_DIR/${DIST_NAME}.zip"

BASE_DIR="main/target/pack"
RENAMED_DIR="main/target/${DIST_NAME}"

rm -rf "${RENAMED_DIR}"
mv "${BASE_DIR}" "${RENAMED_DIR}"
printf "Overwriting launcher script...\n"
cp bin/distribution/myapp_launcher.sh "$RENAMED_DIR/bin/myapp"

printf "Zipping...\n"
rm -f "$OUT_ZIP"
(cd main/target && zip -r "$OUT_ZIP" "$DIST_NAME")

printf "Done: %s\n" "$OUT_ZIP"

Adjust settings as appropriate and of course include a launcher script per your needs, using the one used by pack as a basis. Hope that helps