rev-list: pass diffopt->use_colors through to pretty-print

When rev-list pretty-prints a commit, it creates a new pretty_print_context and copies items from the rev_info struct. We don't currently copy the "use_color" field, though. Nobody seems to have noticed because the only part of pretty.c that cares is the %C(auto,...) placeholder, and presumably not many people use that with the rev-list plumbing (as opposed to with git-log). It will become more noticeable in a future patch, though, when we start treating all user-format colors as auto-colors (in which case it would become impossible to format colors with rev-list, even with --color=always). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Jul 13, 2017 at 11:07 UTC d75dfb1089d471501f6042341bed647525f6e293
2 files changed +12
builtin/rev-list.c
+1
@@ -122,6 +122,7 @@ static void show_commit(struct commit *commit, void *data)
122 ctx.date_mode_explicit = revs->date_mode_explicit;
123 ctx.fmt = revs->commit_format;
124 ctx.output_encoding = get_log_output_encoding();
125 + ctx.color = revs->diffopt.use_color;
126 pretty_print_commit(&ctx, commit, &buf);
127 if (buf.len) {
128 if (revs->commit_format != CMIT_FMT_ONELINE)
t/t6006-rev-list-format.sh
+11
@@ -245,6 +245,17 @@ test_expect_success '%C(auto) respects --no-color' '
245 test_cmp expect actual
246 '
247
248 +test_expect_success 'rev-list %C(auto,...) respects --color' '
249 + git rev-list --color --format="%C(auto,green)foo%C(auto,reset)" \
250 + -1 HEAD >actual.raw &&
251 + test_decode_color <actual.raw >actual &&
252 + cat >expect <<-EOF &&
253 + commit $(git rev-parse HEAD)
254 + <GREEN>foo<RESET>
255 + EOF
256 + test_cmp expect actual
257 +'
258 +
259 iconv -f utf-8 -t $test_encoding > commit-msg <<EOF
260 Test printing of complex bodies
261