[#464] file logger

[elfenpiff]

Notes for Reviewer

Implements a simple file logger that does not use any additional crates and where we can add a simple C/C++ binding for it to be able to exchange loggers from different languages.

Pre-Review Checklist for the PR Author

1. [x] Add sensible notes for the reviewer
2. [x] PR title is short, expressive and meaningful
3. [x] Relevant issues are linked in the References section
4. [x] Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. [x] Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. [x] Commits messages are according to this guideline
   • [x] Commit messages have the issue ID ([#123] Add posix ipc example)
   • [x] Commit author matches Eclipse Contributor Agreement (and ECA is signed)
7. [x] Tests follow the best practice for testing
8. [x] Changelog updated in the unreleased section including API breaking changes
9. [x] Assign PR to reviewer
10. [x] All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• [x] Commits are properly organized and messages are according to the guideline
• [x] Unit tests have been written for new behavior
• [x] Public API is documented
• [x] PR title describes the changes

Post-review Checklist for the PR Author

1. [x] All open points are addressed and tracked via issues

References

Relates to #464

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 65 lines in your changes missing coverage. Please review.

Project coverage is 78.92%. Comparing base (51c619e) to head (fa4a525). Report is 40 commits behind head on main.

Files with missing lines	Patch %	Lines
iceoryx2-bb/log/src/logger/file.rs	0.00%	65 Missing :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/465?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) ```diff @@ Coverage Diff @@ ## main #465 +/- ## ========================================== - Coverage 79.14% 78.92% -0.22% ========================================== Files 196 197 +1 Lines 23538 23637 +99 ========================================== + Hits 18629 18656 +27 - Misses 4909 4981 +72 ``` | [Files with missing lines](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/465?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) | Coverage Δ | | |---|---|---| | [iceoryx2-bb/log/src/logger/file.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/465?src=pr&el=tree&filepath=iceoryx2-bb%2Flog%2Fsrc%2Flogger%2Ffile.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvbG9nL3NyYy9sb2dnZXIvZmlsZS5ycw==) | `0.00% <0.00%> (ø)` | | ... and [6 files with indirect coverage changes](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/465/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx)