CI: Properly run gitlint in CI

When running pre-commit in a CI system the COMMIT_EDITMSG does not
(normally) get created as that is an artifact of editing the commit
message. If the file doesn't exist then gitlint will skip which makes it
possible for pre-commit checks that should fail, to pass.

Since we want tox to run in a consistent manner both locally and in CI
we need to play around a little with how we are checking the commit
message.

Signed-off-by: Andrew Grimberg <agrimberg@linuxfoundation.org>
Change-Id: Ife7b4f04be2bad582d2f406c9c72bf772b097b21

diff --git a/tox.ini b/tox.ini
index b5837b4..d01e18a 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -28,9 +28,27 @@ commands = sphinx-build -j auto -W -b linkcheck -d {envtmpdir}/doctrees ./docs/
 
 [testenv:pre-commit]
 basepython = python3
+allowlist_externals =
+    /bin/sh
 deps =
     pre-commit
+passenv = HOME
 commands =
-    pre-commit install
     pre-commit run --all-files --show-diff-on-failure
-    pre-commit run gitlint --hook-stage commit-msg --commit-msg-filename .git/COMMIT_EDITMSG
+    /bin/sh -c 'if ! git config --get user.name > /dev/null; then \
+        git config --global --add user.name "CI"; \
+        touch .git/REMOVE_USERNAME; fi'
+    /bin/sh -c 'if ! git config --get user.email > /dev/null; then \
+        git config --global --add user.email "ci@example.org"; \
+        touch .git/REMOVE_USEREMAIL; fi'
+    /bin/sh -c "if [ -f .git/COMMIT_EDITMSG ]; then \
+        cp .git/COMMIT_EDITMSG .git/COMMIT_MSGTOX; else \
+        git log HEAD -n1 | tail -n +5 | cut -c 5- > .git/COMMIT_MSGTOX; fi"
+    pre-commit run gitlint --hook-stage commit-msg --commit-msg-filename .git/COMMIT_MSGTOX
+    /bin/sh -c "rm -f .git/COMMIT_MSGTOX"
+    /bin/sh -c "if [ -f .git/REMOVE_USERNAME ]; then \
+        git config --global --unset user.name; \
+        rm -f .git/REMOVE_USERNAME; fi"
+    /bin/sh -c "if [ -f .git/REMOVE_USEREMAIL ]; then \
+        git config --global --unset user.email; \
+        rm -f .git/REMOVE_USEREMAIL; fi"