From a771de4f99b7e0e4fb0b70ffd39817bc94bdf7b3 Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Fri, 10 Dec 2021 09:52:38 +0300
Subject: Automate setting of the development GN3 repo

* When developing the GN2 code, there are times we need to use the
  latest code in GN3, and rather than manually editing the
  `bin/genenetwork` file every time we need that, this commit enables
  the use of an environment variable.

  In this case, launching the application with something like:

    $ env GN3_DEV_REPO_PATH="$HOME/genenetwork3" ...\
      ./bin/genenetwork2 ./the_settings.py -gunicorn-dev

  will add the path to the development version to the PYTHONPATH. If
  the GN3_DEV_REPO_PATH variable is not set, then the PYTHONPATH is
  not altered, and would be as if there is no development version of
  GN3 in use.
---
 bin/genenetwork2 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/genenetwork2 b/bin/genenetwork2
index 024f34d2..e6eb56a6 100755
--- a/bin/genenetwork2
+++ b/bin/genenetwork2
@@ -100,6 +100,8 @@ if [ -z $GEMMA_WRAPPER_COMMAND ]; then
     export GEMMA_WRAPPER_COMMAND="$GN2_PROFILE/bin/gemma-wrapper"
 fi
 
+export PYTHONPATH="${GN3_DEV_REPO_PATH:+$GN3_DEV_REPO_PATH:}:${PYTHONPATH}"
+
 # Our UNIX TMPDIR defaults to /tmp - change this on a shared server
 if [ -z $TMPDIR ]; then
     TMPDIR="/tmp"
-- 
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