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Allow sourcing of dev_tools/pypath from any path #4739

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merged 2 commits into from
Dec 14, 2021
Merged

Allow sourcing of dev_tools/pypath from any path #4739

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f8bbc9b
Allow sourcing of dev_tools/pypath from any path
pavoljuhas Dec 9, 2021
ad0d21a
Merge branch 'master' into enable-dev_tools-pypath-anywhere
CirqBot Dec 14, 2021
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23 changes: 16 additions & 7 deletions dev_tools/pypath
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Original file line number Diff line number Diff line change
Expand Up @@ -14,17 +14,26 @@

#####
# The main file to use to setup your PYTHONPATH. It sets up all cirq modules on the path.
# The file can be sourced from any location with bash or zsh.
# Usage:
# source dev_tools/pypath
#####


#!/usr/bin/bash
if [ -n "${ZSH_VERSION}" ]; then
_PYPATH_BASE_DIR="${${(%):-%x}:a:h:h}"
else
_PYPATH_BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
fi

PREFIX="$(pwd)"
CIRQ_MODULES=$(env PYTHONPATH=. python dev_tools/modules.py list --mode folder)
for m in $CIRQ_MODULES; do
PREFIX="$PREFIX:$(pwd)/$m"
done
_PYPATH_PREFIX="${_PYPATH_BASE_DIR}$(
cd "${_PYPATH_BASE_DIR}" &&
env PYTHONPATH=. python3 dev_tools/modules.py list --mode folder |
xargs printf ":${_PYPATH_BASE_DIR}/%s"
)"

[[ $PYTHONPATH == ${PREFIX}* ]] || export PYTHONPATH="$PREFIX:$PYTHONPATH"
[[ $PYTHONPATH == ${_PYPATH_PREFIX}* ]] ||
export PYTHONPATH="${_PYPATH_PREFIX}${PYTHONPATH:+:}${PYTHONPATH}"

unset _PYPATH_BASE_DIR
unset _PYPATH_PREFIX