@matheusbsbs / matheus-bagliano / commits / 2b15969f61

range-diff: let '--abbrev' option takes effect

As mentioned in 'git-range-diff.txt': "`git range-diff` also accepts the regular diff options (see linkgit:git-diff[1])...", but '--abbrev' is not in the "regular" scope. In Git, the "abbrev" of an object may not be a fixed value in different repositories, depending on the needs of the them(Linus mentioned in e6c587c7 in 2016: "the Linux kernel project needs 11 to 12 hexdigits" at that time ), that's why a user may want to display abbrev according to a specified length. Although a similar effect can be achieved through configuration (like: git -c core.abbrev=<abbrev>), but based on ease of use (many users may not know that the -c option can be specified) and the description in existing document, supporting users to directly use '--abbrev', could be a good way. Signed-off-by: Teng Long <dyroneteng@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Teng Long committed Feb 20, 2023 at 22:24 UTC 2b15969f61425afb2f1e67aa48ea73d2f10d8eb9
2 files changed +39 -4
range-diff.c
+7 -4
index 8255ab4349..086365dffb 100644 --- a/range-diff.c +++ b/range-diff.c @@ -383,11 +383,14 @@ static void output_pair_header(struct diff_options *diffopt, const char *color_new = diff_get_color_opt(diffopt, DIFF_FILE_NEW); const char *color_commit = diff_get_color_opt(diffopt, DIFF_COMMIT); const char *color; + char abbrev = diffopt->abbrev; + + if (abbrev < 0) + abbrev = DEFAULT_ABBREV; if (!dashes->len) strbuf_addchars(dashes, '-', - strlen(find_unique_abbrev(oid, - DEFAULT_ABBREV))); + strlen(find_unique_abbrev(oid, abbrev))); if (!b_util) { color = color_old; @@ -409,7 +412,7 @@ static void output_pair_header(struct diff_options *diffopt, strbuf_addf(buf, "%*s: %s ", patch_no_width, "-", dashes->buf); else strbuf_addf(buf, "%*d: %s ", patch_no_width, a_util->i + 1, - find_unique_abbrev(&a_util->oid, DEFAULT_ABBREV)); + find_unique_abbrev(&a_util->oid, abbrev)); if (status == '!') strbuf_addf(buf, "%s%s", color_reset, color); @@ -421,7 +424,7 @@ static void output_pair_header(struct diff_options *diffopt, strbuf_addf(buf, " %*s: %s", patch_no_width, "-", dashes->buf); else strbuf_addf(buf, " %*d: %s", patch_no_width, b_util->i + 1, - find_unique_abbrev(&b_util->oid, DEFAULT_ABBREV)); + find_unique_abbrev(&b_util->oid, abbrev)); commit = lookup_commit_reference(the_repository, oid); if (commit) {
t/t3206-range-diff.sh
+32
index 84dd0cd26d..b5f4d6a653 100755 --- a/t/t3206-range-diff.sh +++ b/t/t3206-range-diff.sh @@ -33,6 +33,26 @@ test_expect_success 'setup' ' u3 sha256:736c4bc u4 sha256:673e77d + # topic (abbrev=10) + t1_abbrev sha1:4de457d2c0 + t2_abbrev sha1:fccce22f8c + t3_abbrev sha1:147e64ef53 + t4_abbrev sha1:a63e992599 + t1_abbrev sha256:b89f8b9092 + t2_abbrev sha256:5f12aadf34 + t3_abbrev sha256:ea8b273a6c + t4_abbrev sha256:14b73361fc + + # unmodified (abbrev=10) + u1_abbrev sha1:35b9b25f76 + u2_abbrev sha1:de345ab3de + u3_abbrev sha1:9af6654000 + u4_abbrev sha1:2901f773f3 + u1_abbrev sha256:e3731be242 + u2_abbrev sha256:14fadf8cee + u3_abbrev sha256:736c4bcb44 + u4_abbrev sha256:673e77d589 + # reordered r1 sha1:aca177a r2 sha1:14ad629 @@ -153,6 +173,18 @@ test_expect_success 'simple A B C (unmodified)' ' test_cmp expect actual ' +test_expect_success 'simple A..B A..C (unmodified) with --abbrev' ' + git range-diff --no-color --abbrev=10 main..topic main..unmodified \ + >actual && + cat >expect <<-EOF && + 1: $(test_oid t1_abbrev) = 1: $(test_oid u1_abbrev) s/5/A/ + 2: $(test_oid t2_abbrev) = 2: $(test_oid u2_abbrev) s/4/A/ + 3: $(test_oid t3_abbrev) = 3: $(test_oid u3_abbrev) s/11/B/ + 4: $(test_oid t4_abbrev) = 4: $(test_oid u4_abbrev) s/12/B/ + EOF + test_cmp expect actual +' + test_expect_success 'A^! and A^-<n> (unmodified)' ' git range-diff --no-color topic^! unmodified^-1 >actual && cat >expect <<-EOF &&