Closes https://github.com/pyodide/pyodide/issues/604

This creates an installable `pyodide-build` Python package that we can also upload to PyPi under https://pypi.org/project/pyodide-build/ (currently uploaded the dev version to reserve the name).

There is also the identically named `pyodide-build` CLI command which replaces `bin/pyodide`.

The short term goals is to use fewer hacks with `PATH` and `PYTHONPATH`. Long term goal make it a user facing interface for building packages instead of the Makefile.
Create an installable pyodide-build package. Closes https://github.com/pyodide/pyodide/issues/604

This creates an installable `pyodide-build` Python package that we can also upload to PyPi under https://pypi.org/project/pyodide-build/ (currently uploaded the dev version to reserve the name).

There is also the identically named `pyodide-build` CLI command which replaces `bin/pyodide`.

The short term goals is to use fewer hacks with `PATH` and `PYTHONPATH`. Long term goal make it a user facing interface for building packages instead of the Makefile.
#!/bin/bash
FILES=$(git diff --cached --name-only *.c *.h)
if [ -n "$FILES" ]; then
    echo hi
    # Change files, stage changes
    clang-format-6.0 -verbose -i $FILES
    git add $FILES
fi

FILES=$(git diff --cached --name-only *.js)
if [ -n "$FILES" ]; then
    # Change files, stage changes
    ./node_modules/.bin/prettier --write $FILES
    git add $FILES
fi

#!/bin/bash
FILES=$(git diff --cached --name-only *.c *.h)
if [ -n "$FILES" ]; then
    echo hi
    # Change files, stage changes
    clang-format-6.0 -verbose -i $FILES
    git add $FILES
fi

FILES=$(git diff --cached --name-only *.js)
if [ -n "$FILES" ]; then
    # Change files, stage changes
    ./node_modules/.bin/prettier --write $FILES
    git add $FILES
fi
