attempt to fix ci on macos

.github/workflows/ci.yml

@@ -47,15 +47,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    - name: brew install mercurial
-      run: brew install mercurial
-
-    - name: debug hg
-      run: which hg
-
-    - name: debug mercurial
-      run: which mercurial
-
     - name: Cache Conda Envs
       uses: actions/cache@v2
       with:
@@ -66,6 +57,9 @@ jobs:
         restore-keys: |
           ${{ runner.OS }}-conda-cache-${{ hashFiles('requirements/*.txt', 'setup.py', 'makefile*') }}
 
+    - name: brew install mercurial
+      run: brew install mercurial
+
     - name: make conda
       run:
         if [[ -e build/envs.txt ]]; then touch build/envs.txt; fi;

test/test_cli.py

@@ -36,6 +36,7 @@ ENV = {
     'GIT_AUTHOR_EMAIL'   : "pycalver_tester@nowhere.com",
     'GIT_COMMITTER_EMAIL': "pycalver_tester@nowhere.com",
     'HGUSER'             : "pycalver_tester",
+    'PATH'               : os.environ['PATH'],
 }