The script was using stdout=subprocess.STDOUT but the Popen
documentation does not mention this as a valid value.
An exception was being thrown when running flatpak-bisect <name> log:
OSError: [Errno 9] Bad file descriptor
The CLI is pretty similare to the `git bisect` one and works as follow:
$ flatpak-bisect org.app.App start # Update application and get the history
$ flatpak-bisect org.app.App bad # Sets current commit as first bad commit
$ flatpak-bisect org.app.App checkout GoodHash # Checkout the first known good commit
$ flatpak-bisect org.app.App good # Sets GoodHash as first good commit
... Here it starts bisection and checkouts a commit on the way, the user should launch the
app to check if the commit is good or bad and run:
$ flatpak-bisect org.app.App good # if commit is good
$ flatpak-bisect org.app.App bad # if commit is bad
flatpak-bisect will tell when the first bad commit is found.
Fixes https://github.com/flatpak/flatpak/issues/530
Alexandru Băluț