Saint's Log

Viewing git file mode of bash scripts in Windows

I have been using bash scripts to run jtreg tests when working on my Windows desktop. The Git Bash environment does not care about whether the script has the executable mode set. However, running the same script on other platforms requires a chmod +x command. Since it is annoying to have to do this every time I switch platforms, I have decided to be fixing this before pushing scripts. How do I see the permission of a file in Git? – Stack Overflow recommends git ls-files -s. It’s only now that I’m learning (from the top voted answer) that Git only tracks the executable bit on files (Are file permissions and owner:group properties included in git commits? – Stack Overflow).

$ git ls-files -s
100755 a84afa2caa928a2cea6cf4ae1547f742e52c7078 0       run-foreign-abi-tests.sh
100644 24bf639dd98f99435db83012a7ba70200a09bea8 0       run-gtests.sh
100644 7137e3b5a8d85a8b24e7cb2ee4da2587d2dcde22 0       run-jtreg-test.sh
100644 1a4a0e9f7409b8b96af12516393a4cc5d9efd7e3 0       run-jtreg-tests.sh

chmod +x run-jtreg-test.sh does not change the file mode displayed by git ls-files -s. As per How to add chmod permissions to file in Git? – Stack Overflow, you can use this command starting in Git 2.9 (I’m running git version 2.45.2.windows.1)

git add --chmod=+x run-jtreg-test.sh

And now git ls-files -s shows the new file mode.

$ git ls-files -s
100755 a84afa2caa928a2cea6cf4ae1547f742e52c7078 0       run-foreign-abi-tests.sh
100644 24bf639dd98f99435db83012a7ba70200a09bea8 0       run-gtests.sh
100755 7137e3b5a8d85a8b24e7cb2ee4da2587d2dcde22 0       run-jtreg-test.sh
100644 1a4a0e9f7409b8b96af12516393a4cc5d9efd7e3 0       run-jtreg-tests.sh