intellij-patch-bf.sh

#!/usr/bin/env bash
# until https://github.com/JetBrains/intellij-community/pull/3022 gets merged

set -e
tmpdir="$(mktemp -d -t patch.df-bf)"
echo "using tmpdir: $tmpdir" >&2

function patch_impl() {
  cd "$tmpdir"

  base="$1/plugins/maven/lib"
  src="$base/maven36-server.jar"
  backup="maven36-server.df.jar"
  cls="org/jetbrains/idea/maven/server/Maven36ServerEmbedderImpl.class"

  if [[ ! -e "$src" ]]; then
    echo "patch: src file not found '$src'" >&2
    exit 1
  fi

  jar xf "$src" "$cls"
  if grep -ob "bf" "$cls" >/dev/null; then
    echo "possibly already bf! skipping." >&2
    return
  fi

  if ! grep -ob "df" "$cls" >/dev/null; then
    echo "df not found in src class" >&2
    exit 1
  fi

  echo "patching cls" >&2
  perl -i -pe 'BEGIN { $found = 0 }
    if (!$found && s/df/bf/g) { $found = 1 }' "$cls"

  echo "backing up current jar" >&2
  cp "$src" "maven36-server.jar"
  cp "$src" "$backup"

  echo "repacking jar" >&2
  jar uf "maven36-server.jar" "$cls"
  rm "$cls"
  rm -r org

  echo "opening folder: $base"
  open "$base"

  echo "opening folder: $tmpdir"
  open "$tmpdir"

  tmpname=$(basename "$tmpdir")
  echo "drag and drop the two jar files from the patch folder '$tmpname' into the 'lib' folder!" >&2
}

function main() {
  platform="$(uname -s)"
  if [[ "$platform" == "Darwin" ]]; then
    base="/Applications/IntelliJ IDEA.app/Contents"
  else
    echo "unknown platform '$platform'" >&2
    exit 1
  fi

  if [[ ! -e "$base" ]]; then
    echo "base not found: '$base'" >&2
    exit 1
  fi

  patch_impl "$base"
}

main