git/mergetools/bc
Johannes Schindelin 6bc9082c0f mergetools/bc: add bc4 to the alias list for Beyond Compare
As of 83bbf9b92e (mergetool--lib: improve support for vimdiff-style
tool variants, 2020-07-29), we already list `bc` and `bc3` as aliases
for that mergetool/difftool.

However, the current Beyond Compare version is _4_, therefore the `bc4`
alias is missing from that list.

Most notably, this is the root cause of the breakage reported in
https://github.com/git-for-windows/git/issues/2893 where a
well-configured `bc4` difftool stopped working as of v2.29.0:
`setup_tool` would notice that after stripping off the trailing digit,
it finds a match in `mergetools/` (the `bc` file), source it, and then
the alias would not match the list offered by the `list_tool_variants`
function, and simply exit without doing anything, but pretending
success.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 13:00:10 -08:00

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diff_cmd () {
"$merge_tool_path" "$LOCAL" "$REMOTE"
}
merge_cmd () {
if $base_present
then
"$merge_tool_path" "$LOCAL" "$REMOTE" "$BASE" \
-mergeoutput="$MERGED"
else
"$merge_tool_path" "$LOCAL" "$REMOTE" \
-mergeoutput="$MERGED"
fi
}
translate_merge_tool_path() {
if type bcomp >/dev/null 2>/dev/null
then
echo bcomp
else
echo bcompare
fi
}
list_tool_variants () {
echo bc
echo bc3
echo bc4
}