diff options
| -rw-r--r-- | diff.c | 35 | ||||
| -rwxr-xr-x | t/t4015-diff-whitespace.sh | 14 |
2 files changed, 39 insertions, 10 deletions
@@ -189,6 +189,7 @@ struct emit_callback { struct diff_words_data *diff_words; int *found_changesp; FILE *file; + struct strbuf *header; }; static int count_lines(const char *data, int size) @@ -755,6 +756,11 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN); const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET); + if (ecbdata->header) { + fprintf(ecbdata->file, "%s", ecbdata->header->buf); + strbuf_reset(ecbdata->header); + ecbdata->header = NULL; + } *(ecbdata->found_changesp) = 1; if (ecbdata->label_path[0]) { @@ -1561,6 +1567,7 @@ static void builtin_diff(const char *name_a, const char *reset = diff_get_color_opt(o, DIFF_RESET); const char *a_prefix, *b_prefix; const char *textconv_one = NULL, *textconv_two = NULL; + struct strbuf header = STRBUF_INIT; if (DIFF_OPT_TST(o, SUBMODULE_LOG) && (!one->mode || S_ISGITLINK(one->mode)) && @@ -1595,25 +1602,26 @@ static void builtin_diff(const char *name_a, b_two = quote_two(b_prefix, name_b + (*name_b == '/')); lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null"; lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null"; - fprintf(o->file, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset); + strbuf_addf(&header, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset); if (lbl[0][0] == '/') { /* /dev/null */ - fprintf(o->file, "%snew file mode %06o%s\n", set, two->mode, reset); + strbuf_addf(&header, "%snew file mode %06o%s\n", set, two->mode, reset); if (xfrm_msg && xfrm_msg[0]) - fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset); + strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset); } else if (lbl[1][0] == '/') { - fprintf(o->file, "%sdeleted file mode %06o%s\n", set, one->mode, reset); + strbuf_addf(&header, "%sdeleted file mode %06o%s\n", set, one->mode, reset); if (xfrm_msg && xfrm_msg[0]) - fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset); + strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset); } else { if (one->mode != two->mode) { - fprintf(o->file, "%sold mode %06o%s\n", set, one->mode, reset); - fprintf(o->file, "%snew mode %06o%s\n", set, two->mode, reset); + strbuf_addf(&header, "%sold mode %06o%s\n", set, one->mode, reset); + strbuf_addf(&header, "%snew mode %06o%s\n", set, two->mode, reset); } if (xfrm_msg && xfrm_msg[0]) - fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset); + strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset); + /* * we do not run diff between different kind * of objects. @@ -1623,6 +1631,8 @@ static void builtin_diff(const char *name_a, if (complete_rewrite && (textconv_one || !diff_filespec_is_binary(one)) && (textconv_two || !diff_filespec_is_binary(two))) { + fprintf(o->file, "%s", header.buf); + strbuf_reset(&header); emit_rewrite_diff(name_a, name_b, one, two, textconv_one, textconv_two, o); o->found_changes = 1; @@ -1640,6 +1650,8 @@ static void builtin_diff(const char *name_a, if (mf1.size == mf2.size && !memcmp(mf1.ptr, mf2.ptr, mf1.size)) goto free_ab_and_return; + fprintf(o->file, "%s", header.buf); + strbuf_reset(&header); if (DIFF_OPT_TST(o, BINARY)) emit_binary_diff(o->file, &mf1, &mf2); else @@ -1656,6 +1668,11 @@ static void builtin_diff(const char *name_a, struct emit_callback ecbdata; const struct userdiff_funcname *pe; + if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS)) { + fprintf(o->file, "%s", header.buf); + strbuf_reset(&header); + } + if (textconv_one) { size_t size; mf1.ptr = run_textconv(textconv_one, one, &size); @@ -1685,6 +1702,7 @@ static void builtin_diff(const char *name_a, if (ecbdata.ws_rule & WS_BLANK_AT_EOF) check_blank_at_eof(&mf1, &mf2, &ecbdata); ecbdata.file = o->file; + ecbdata.header = header.len ? &header : NULL; xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts; xecfg.ctxlen = o->context; xecfg.interhunkctxlen = o->interhunkcontext; @@ -1729,6 +1747,7 @@ static void builtin_diff(const char *name_a, } free_ab_and_return: + strbuf_release(&header); diff_free_filespec_data(one); diff_free_filespec_data(two); free(a_one); diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh index 8dd147d78..90f334237 100755 --- a/t/t4015-diff-whitespace.sh +++ b/t/t4015-diff-whitespace.sh @@ -93,8 +93,6 @@ git diff > out test_expect_success 'another test, without options' 'test_cmp expect out' cat << EOF > expect -diff --git a/x b/x -index d99af23..8b32fb5 100644 EOF git diff -w > out test_expect_success 'another test, with -w' 'test_cmp expect out' @@ -386,6 +384,18 @@ test_expect_success 'checkdiff allows new blank lines' ' git diff --check ' +cat <<EOF >expect +EOF +test_expect_success 'whitespace-only changes not reported' ' + git reset --hard && + echo >x "hello world" && + git add x && + git commit -m "hello 1" && + echo >x "hello world" && + git diff -b >actual && + test_cmp expect actual +' + test_expect_success 'combined diff with autocrlf conversion' ' git reset --hard && |