Hi Eric, On Mon, 15 May 2017, Eric Rannaud wrote: > It used to be possible to run a sequence like: > > foo() { echo X; } > export -f foo > git rebase --exec foo HEAD~10 It would appear to me that you used a side effect of an implementation detail: that `git rebase -i` was implemented entirely as a shell script. In my mind, this was a fragile assumption, and that is why... > commit 18633e1a22a68bbe8e6311a1039d13ebbf6fd041 (refs/bisect/bad) > Author: Johannes Schindelin <johannes.schindelin@xxxxxx> > Date: Thu Feb 9 23:23:11 2017 +0100 > > rebase -i: use the rebase--helper builtin ... this commit, which is a long-overdue start of cleaning up our act, broke your code's assumption. I am afraid that your code placed too much of a dependency on an implementation detail that changed. In short: I think that your fix to your script is correct. Ciao, Johannes