realpath doesn't exist on OSX

[jakearchibald]

But it can be installed via

brew install coreutils

[domenic]

Some good alternatives here... http://stackoverflow.com/q/3572030/3191

[sideshowbarker]

Some good alternatives here... http://stackoverflow.com/q/3572030/3191

Of those http://stackoverflow.com/a/18443300/441757 looks like those most useful:

#!/bin/sh
realpath() {
  OURPWD=$PWD
  cd "$(dirname "$1")"
  LINK=$(readlink "$(basename "$1")")
  while [ "$LINK" ]; do
    cd "$(dirname "$LINK")"
    LINK=$(readlink "$(basename "$1")")
  done
  REALPATH="$PWD/$(basename "$1")"
  cd "$OURPWD"
  echo "$REALPATH"
}
realpath "$@"

I’ll open a PR with a patch that uses that instead.

[sideshowbarker]

OK I see now a complication is that the code is actually using realpath with --relative-to:

SOURCE_RELATIVE=$(realpath --relative-to=. $HTML_SOURCE

…so will also need to see if we can emulate that.

[domenic]

Apparently Ubuntu doesn't have --relative-to either... going to try a few fixes here.