Import the jsDependencies plugin from the Scala.js core repository.

[sjrd]

This is the initial import of sbt plugin for jsDependencies from the Scala.js core repository. The history of this commit reflects the entire history of relevant files from the core repo, filter-branch'ed to appear as if they had always been in this repo. This commit adds the specific setup of the build and tests.

The history was created in a similar way as for scala-js/scala-js-env-phantomjs#1. It based on commit scala-js/scala-js@cc6610b from the core repository.

Step 1: keep only relevant files and their history

git filter-branch \
    --prune-empty \
    --index-filter '
  git ls-tree -z -r --name-only --full-tree $GIT_COMMIT \
    | grep -z -v "^jsdependencies-sbt-plugin/src/main/scala/org/scalajs/jsdependencies/sbtplugin/JSDependenciesPlugin.scala$" \
    | grep -z -v "^sbt-plugin/src/main/scala/scala/scalajs/sbtplugin/JSModuleIDs.scala$" \
    | grep -z -v "^sbt-plugin/src/main/scala/scala/scalajs/sbtplugin/AbstractJSDeps.scala$" \
    | grep -z -v "^sbt-plugin/src/main/scala/org/scalajs/sbtplugin/AbstractJSDeps.scala$" \
    | grep -z -v "^jsdependencies-sbt-plugin/src/main/scala/org/scalajs/jsdependencies/sbtplugin/AbstractJSDeps.scala$" \
    | grep -z -v "^tools/src/main/scala/scala/scalajs/tools/jsdep/" \
    | grep -z -v "^tools/shared/src/main/scala/scala/scalajs/tools/jsdep/" \
    | grep -z -v "^tools/shared/src/main/scala/org/scalajs/core/tools/jsdep/" \
    | grep -z -v "^jsdependencies-core/src/main/scala/org/scalajs/jsdependencies/core/" \
    | grep -z -v "^tools/shared/src/test/scala/org/scalajs/core/tools/jsdep/" \
    | grep -z -v "^jsdependencies-core/src/test/scala/org/scalajs/jsdependencies/core/" \
    | grep -z -v "^sbt-plugin-test/build.sbt$" \
    | grep -z -v "^sbt-plugin-test/project/build.sbt$" \
    | grep -z -v "^sbt-plugin-test/jsDependenciesTest/" \
    | xargs -0 -r git rm -r --cached
  ' HEAD

Result: https://github.com/sjrd/jsdependencies/tree/import-from-core-step1

Step 2: remove empty merge commit

git filter-branch --prune-empty --parent-filter 'sed "s/-p //g" | xargs -r git show-branch --independent | sed "s/\</-p /g"'

Result: https://github.com/sjrd/jsdependencies/tree/import-from-core-step2

Step 3: attach to the Initial commit of this repo

The initial commit is 9c45fa5

git filter-branch --parent-filter 'sed "s/ca1d58a31e27756c0d07fd65fbfdb1a3e0c6642e/9c45fa5a48df1df84a651ce396a37e043f2525f2/"'

Result: https://github.com/sjrd/jsdependencies/tree/import-from-core-step3

Step 4: reset files from the Initial commit

git filter-branch --index-filter 'git reset 9c45fa5a48df1df84a651ce396a37e043f2525f2 -- .gitignore LICENSE README.md'

Result: https://github.com/sjrd/jsdependencies/tree/import-from-core-step4

Step 5: rewrite references to issues to point to the core repo

git filter-branch --msg-filter 'sed -r -e "s/(#[0-9]+)/scala-js\/scala-js\1/g"'

Result: https://github.com/sjrd/jsdependencies/tree/import-from-core-step5