Avoid erroneous developer commits to main branch

[berland]

Issue
Resolves developers forgetting to checkout a new branch before commiting.

Approach
pre-commit

Example of classical developer error that is guarded by this commit:

HAVB@AC-Y72WJR4W4M:~/projects/ert] main$ git commit -am "Avoid erroneous developer commits to main branch"
don't commit to branch...................................................Failed
- hook id: no-commit-to-branch
- exit code: 1
check json...........................................(no files to check)Skipped
check yaml...............................................................Passed
fix end of files.........................................................Passed
trim trailing whitespace.................................................Passed
ruff.................................................(no files to check)Skipped
ruff-format..........................................(no files to check)Skipped
clang-format.........................................(no files to check)Skipped
cmake-format.........................................(no files to check)Skipped
cmake-lint...........................................(no files to check)Skipped

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure tests pass locally (after every commit!)

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[xjules]

Don't understand this tbh. What's the issue - is it to avoid force-push?

[berland]

We should never commit to our local main, we should only ever do git commit when another branch is checked out.

When we commit to local main branch, we need to clean up with git reset --hard origin main.

This PR will make git commit fail unless you have checked out another branch than main

[jonathan-eq]

Can we change the commit message to something like Have pre-commit protect main branch?

[berland]

Can we change the commit message to something like Have pre-commit protect main branch?

Fixed!

[jonathan-eq]

Very good!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.20%. Comparing base (0e3f9b5) to head (92d655c).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7585      +/-   ##
==========================================
+ Coverage   85.18%   85.20%   +0.02%     
==========================================
  Files         383      383              
  Lines       23275    23293      +18     
  Branches      893      879      -14     
==========================================
+ Hits        19827    19847      +20     
+ Misses       3339     3335       -4     
- Partials      109      111       +2     

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