git-diff's --quiet option works how I'd expect with --ignore-space-at-eol
as long as I'm also using --no-index:
$ echo>b; echo \ >c; git diff --no-index --quiet --ignore-space-at-eol b c \
&& echo good
good
But in what I think of as normal operation (i.e., without --no-index),
--exit-code (or --quiet) makes git-diff say there were differences,
even when they have been ignored:
# do this in an empty directory
$ git init -q; echo>k; git add .; git commit -q -m. .; echo \ >k
$ git diff --ignore-space-at-eol --quiet || echo bad
bad
Same problem with --ignore-space-change.
-------------------
In the surprising case, builtin-diff.c's builtin_diff_files calls
diff_result_code, which returns nonzero due to this:
if (diff_queued_diff.nr)
DIFF_OPT_SET(options, HAS_CHANGES);
else
DIFF_OPT_CLR(options, HAS_CHANGES);
However, the queued diffs may contain only ignorable changes.
With --no-index, it takes a different code path and uses
diffopt.found_changes to produce the desired exit status.
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