| #!/bin/sh |
| # |
| # A hook script to verify what is about to be committed. |
| # Called by "git commit --amend" or "git rebase". The hook exits with |
| # non-zero status and warning messages if the files being rewritten do |
| # not conform to the Mesos style. |
| # |
| # To enable this hook, do this from the root of the repo: |
| # |
| # $ ln -s ../../support/hooks/post_rewrite .git/hooks/post_rewrite |
| |
| # Redirect output to stderr. |
| exec 1>&2 |
| |
| # If there are whitespace errors, print the offending file names. |
| ## In git, '@~' represent previous commit. We check the whitespace between |
| ## current head and previous commit after a commit is rewritten. |
| git diff-index --check @~ -- || exit 1 |
| |
| # Check Mesos style. |
| ## In git, '@' represent current head, '@~' represent previous commit. We check |
| ## the style of changes between current head and previous commit after a commit |
| ## is rewritten. |
| ADDED_OR_MODIFIED=$(git diff --name-only --diff-filter=AM @~..@) |
| if [ "$ADDED_OR_MODIFIED" ]; then |
| # NOTE: We choose to implement this as a conditional rather than a call to |
| # `xargs` on purpose. Some implementations of `xargs` will call your script |
| # even if the arguments you pass in are empty. In our case, this would |
| # cause us to erroneously lint every file in the repository. Additionally, |
| # many implementations do not support the `-r` flag, (which instructs |
| # `xargs` to not run the script if the arguments are empty), so we also |
| # cannot use that. |
| ./support/mesos-style.py $ADDED_OR_MODIFIED || exit 1 |
| fi |
| |
| # Check that the commits are properly split between mesos, libprocess and stout. |
| ## In git, '@' represent current head, '@~' represent previous commit. We check |
| ## the style of changes between current head and previous commit after a commit |
| ## is rewritten. |
| git diff --name-only --diff-filter=AMD @~..@ | xargs ./support/mesos-split.py || exit 1 |