Make a self contained hubugs

make-hubugs.sh

#!/bin/zsh

if (( ! $+commands[virtualenv] )); then
  print "$0: no such command: virtualenv" >&2
  return 1
fi

if (( ! $+commands[git] )); then
  print "$0: no such command: git" >&2
  return 1
fi

out='hubugs'
executable="$out/bin/hubugs"
environment="$out/libexec/hubugs"

if [[ -d "$out" ]]; then
  print "$0: already exists: $out" >&2
  return 1
fi

mkdir -p "$executable:h"
mkdir -p "$environment"

virtualenv "$environment"
path=("$environment/bin" $path)
pip -E "$environment" install 'git+https://github.com/JNRowe/hubugs.git#egg=hubugs'
virtualenv --relocatable "$environment"

print '#!/bin/zsh
"${0:A:h:h}/libexec/hubugs/bin/hubugs" "$@"' > "$executable"

chmod u+x "$executable"