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Merge branch 'jk/merge-file-exit-code'
"git merge-file" tried to signal how many conflicts it found, which obviously would not work well when there are too many of them. * jk/merge-file-exit-code: merge-file: clamp exit code to maximum 127
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commit
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@ -41,7 +41,8 @@ lines from `<other-file>`, or lines from both respectively. The length of the
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conflict markers can be given with the `--marker-size` option.
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The exit value of this program is negative on error, and the number of
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conflicts otherwise. If the merge was clean, the exit value is 0.
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conflicts otherwise (truncated to 127 if there are more than that many
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conflicts). If the merge was clean, the exit value is 0.
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'git merge-file' is designed to be a minimal clone of RCS 'merge'; that is, it
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implements all of RCS 'merge''s functionality which is needed by
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@ -104,5 +104,8 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix)
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free(result.ptr);
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}
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if (ret > 127)
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ret = 127;
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return ret;
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}
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@ -692,4 +692,37 @@ test_expect_success GPG 'merge --no-edit tag should skip editor' '
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test_cmp actual expect
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'
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test_expect_success 'set up mod-256 conflict scenario' '
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# 256 near-identical stanzas...
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for i in $(test_seq 1 256); do
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for j in 1 2 3 4 5; do
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echo $i-$j
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done
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done >file &&
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git add file &&
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git commit -m base &&
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# one side changes the first line of each to "master"
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sed s/-1/-master/ <file >tmp &&
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mv tmp file &&
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git commit -am master &&
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# and the other to "side"; merging the two will
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# yield 256 separate conflicts
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git checkout -b side HEAD^ &&
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sed s/-1/-side/ <file >tmp &&
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mv tmp file &&
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git commit -am side
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'
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test_expect_success 'merge detects mod-256 conflicts (recursive)' '
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git reset --hard &&
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test_must_fail git merge -s recursive master
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'
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test_expect_success 'merge detects mod-256 conflicts (resolve)' '
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git reset --hard &&
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test_must_fail git merge -s resolve master
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'
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test_done
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