[Android] buildsystem: improve portability and refactor check-all-commits.sh

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Wed Jul 29 11:37:58 2026 +0200| [80920b3d15b303b5dac21aa8cf0c60ac498b89ae] | committer: Duncan McNamara

buildsystem: improve portability and refactor check-all-commits.sh

- Move `run_build` and `generate_bar` functions to the global scope.
- Replace Perl-based time formatting with the `date` command for better portability between GNU and BSD/macOS.
- Simplify rebase detection by focusing on the `rebase-merge` directory.
- Fix a bug in `TOTAL_SUCCESS_DURATION` calculation where it incorrectly added multiple durations after a clean build.
- Improve log management by truncating the build log at the start of verification and using append mode during build execution.

> https://code.videolan.org/videolan/vlc-android/commit/80920b3d15b303b5dac21aa8cf0c60ac498b89ae
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 buildsystem/check-all-commits.sh | 157 ++++++++++++++++++++++-----------------
 1 file changed, 89 insertions(+), 68 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/80920b3d15b303b5dac21aa8cf0c60ac498b89ae