diff options
| -rw-r--r-- | Documentation/diff-options.txt | 7 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | diff.c | 18 | ||||
| -rw-r--r-- | diff.h | 3 | ||||
| -rw-r--r-- | submodule.c | 113 | ||||
| -rw-r--r-- | submodule.h | 8 | ||||
| -rwxr-xr-x | t/t4041-diff-submodule.sh | 260 |
7 files changed, 411 insertions, 0 deletions
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index 9276faeb1..e26b84706 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -87,6 +87,13 @@ endif::git-format-patch[] Show only names and status of changed files. See the description of the `--diff-filter` option on what the status letters mean. +--submodule[=<format>]:: + Chose the output format for submodule differences. <format> can be one of + 'short' and 'log'. 'short' just shows pairs of commit names, this format + is used when this option is not given. 'log' is the default value for this + option and lists the commits in that commit range like the 'summary' + option of linkgit:git-submodule[1] does. + --color:: Show colored diff. @@ -456,6 +456,7 @@ LIB_H += sideband.h LIB_H += sigchain.h LIB_H += strbuf.h LIB_H += string-list.h +LIB_H += submodule.h LIB_H += tag.h LIB_H += transport.h LIB_H += tree.h @@ -554,6 +555,7 @@ LIB_OBJS += sideband.o LIB_OBJS += sigchain.o LIB_OBJS += strbuf.o LIB_OBJS += string-list.o +LIB_OBJS += submodule.o LIB_OBJS += symlinks.o LIB_OBJS += tag.o LIB_OBJS += trace.o @@ -13,6 +13,7 @@ #include "utf8.h" #include "userdiff.h" #include "sigchain.h" +#include "submodule.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -1557,6 +1558,17 @@ static void builtin_diff(const char *name_a, const char *a_prefix, *b_prefix; const char *textconv_one = NULL, *textconv_two = NULL; + if (DIFF_OPT_TST(o, SUBMODULE_LOG) && + (!one->mode || S_ISGITLINK(one->mode)) && + (!two->mode || S_ISGITLINK(two->mode))) { + const char *del = diff_get_color_opt(o, DIFF_FILE_OLD); + const char *add = diff_get_color_opt(o, DIFF_FILE_NEW); + show_submodule_summary(o->file, one ? one->path : two->path, + one->sha1, two->sha1, + del, add, reset); + return; + } + if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) { textconv_one = get_textconv(one); textconv_two = get_textconv(two); @@ -2757,6 +2769,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) DIFF_OPT_CLR(options, ALLOW_TEXTCONV); else if (!strcmp(arg, "--ignore-submodules")) DIFF_OPT_SET(options, IGNORE_SUBMODULES); + else if (!strcmp(arg, "--submodule")) + DIFF_OPT_SET(options, SUBMODULE_LOG); + else if (!prefixcmp(arg, "--submodule=")) { + if (!strcmp(arg + 12, "log")) + DIFF_OPT_SET(options, SUBMODULE_LOG); + } /* misc options */ else if (!strcmp(arg, "-z")) @@ -66,6 +66,9 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q, #define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19) #define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20) #define DIFF_OPT_ALLOW_TEXTCONV (1 << 21) + +#define DIFF_OPT_SUBMODULE_LOG (1 << 23) + #define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag) #define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag) #define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag) diff --git a/submodule.c b/submodule.c new file mode 100644 index 000000000..d5fce7a88 --- /dev/null +++ b/submodule.c @@ -0,0 +1,113 @@ +#include "cache.h" +#include "submodule.h" +#include "dir.h" +#include "diff.h" +#include "commit.h" +#include "revision.h" + +int add_submodule_odb(const char *path) +{ + struct strbuf objects_directory = STRBUF_INIT; + struct alternate_object_database *alt_odb; + + strbuf_addf(&objects_directory, "%s/.git/objects/", path); + if (!is_directory(objects_directory.buf)) + return -1; + + /* avoid adding it twice */ + for (alt_odb = alt_odb_list; alt_odb; alt_odb = alt_odb->next) + if (alt_odb->name - alt_odb->base == objects_directory.len && + !strncmp(alt_odb->base, objects_directory.buf, + objects_directory.len)) + return 0; + + alt_odb = xmalloc(objects_directory.len + 42 + sizeof(*alt_odb)); + alt_odb->next = alt_odb_list; + strcpy(alt_odb->base, objects_directory.buf); + alt_odb->name = alt_odb->base + objects_directory.len; + alt_odb->name[2] = '/'; + alt_odb->name[40] = '\0'; + alt_odb->name[41] = '\0'; + alt_odb_list = alt_odb; + prepare_alt_odb(); + return 0; +} + +void show_submodule_summary(FILE *f, const char *path, + unsigned char one[20], unsigned char two[20], + const char *del, const char *add, const char *reset) +{ + struct rev_info rev; + struct commit *commit, *left = left, *right; + struct commit_list *merge_bases, *list; + const char *message = NULL; + struct strbuf sb = STRBUF_INIT; + static const char *format = " %m %s"; + int fast_forward = 0, fast_backward = 0; + + if (is_null_sha1(two)) + message = "(submodule deleted)"; + else if (add_submodule_odb(path)) + message = "(not checked out)"; + else if (is_null_sha1(one)) + message = "(new submodule)"; + else if (!(left = lookup_commit_reference(one)) || + !(right = lookup_commit_reference(two))) + message = "(commits not present)"; + + if (!message) { + init_revisions(&rev, NULL); + setup_revisions(0, NULL, &rev, NULL); + rev.left_right = 1; + rev.first_parent_only = 1; + left->object.flags |= SYMMETRIC_LEFT; + add_pending_object(&rev, &left->object, path); + add_pending_object(&rev, &right->object, path); + merge_bases = get_merge_bases(left, right, 1); + if (merge_bases) { + if (merge_bases->item == left) + fast_forward = 1; + else if (merge_bases->item == right) + fast_backward = 1; + } + for (list = merge_bases; list; list = list->next) { + list->item->object.flags |= UNINTERESTING; + add_pending_object(&rev, &list->item->object, + sha1_to_hex(list->item->object.sha1)); + } + if (prepare_revision_walk(&rev)) + message = "(revision walker failed)"; + } + + strbuf_addf(&sb, "Submodule %s %s..", path, + find_unique_abbrev(one, DEFAULT_ABBREV)); + if (!fast_backward && !fast_forward) + strbuf_addch(&sb, '.'); + strbuf_addf(&sb, "%s", find_unique_abbrev(two, DEFAULT_ABBREV)); + if (message) + strbuf_addf(&sb, " %s\n", message); + else + strbuf_addf(&sb, "%s:\n", fast_backward ? " (rewind)" : ""); + fwrite(sb.buf, sb.len, 1, f); + + if (!message) { + while ((commit = get_revision(&rev))) { + strbuf_setlen(&sb, 0); + if (commit->object.flags & SYMMETRIC_LEFT) { + if (del) + strbuf_addstr(&sb, del); + } + else if (add) + strbuf_addstr(&sb, add); + format_commit_message(commit, format, &sb, + rev.date_mode); + if (reset) + strbuf_addstr(&sb, reset); + strbuf_addch(&sb, '\n'); + fprintf(f, "%s", sb.buf); + } + clear_commit_marks(left, ~0); + clear_commit_marks(right, ~0); + } + strbuf_release(&sb); +} diff --git a/submodule.h b/submodule.h new file mode 100644 index 000000000..4c0269d67 --- /dev/null +++ b/submodule.h @@ -0,0 +1,8 @@ +#ifndef SUBMODULE_H +#define SUBMODULE_H + +void show_submodule_summary(FILE *f, const char *path, + unsigned char one[20], unsigned char two[20], + const char *del, const char *add, const char *reset); + +#endif diff --git a/t/t4041-diff-submodule.sh b/t/t4041-diff-submodule.sh new file mode 100755 index 000000000..5bb4fed3f --- /dev/null +++ b/t/t4041-diff-submodule.sh @@ -0,0 +1,260 @@ +#!/bin/sh +# +# Copyright (c) 2009 Jens Lehmann, based on t7401 by Ping Yin +# + +test_description='Support for verbose submodule differences in git diff + +This test tries to verify the sanity of the --submodule option of git diff. +' + +. ./test-lib.sh + +add_file () { + sm=$1 + shift + owd=$(pwd) + cd "$sm" + for name; do + echo "$name" > "$name" && + git add "$name" && + test_tick && + git commit -m "Add $name" + done >/dev/null + git rev-parse --verify HEAD | cut -c1-7 + cd "$owd" +} +commit_file () { + test_tick && + git commit "$@" -m "Commit $*" >/dev/null +} + +test_create_repo sm1 && +add_file . foo >/dev/null + +head1=$(add_file sm1 foo1 foo2) + +test_expect_success 'added submodule' " + git add sm1 && + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 0000000...$head1 (new submodule) +EOF +" + +commit_file sm1 && +head2=$(add_file sm1 foo3) + +test_expect_success 'modified submodule(forward)' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head1..$head2: + > Add foo3 +EOF +" + +test_expect_success 'modified submodule(forward)' " + git diff --submodule=log >actual && + diff actual - <<-EOF +Submodule sm1 $head1..$head2: + > Add foo3 +EOF +" + +test_expect_success 'modified submodule(forward) --submodule' " + git diff --submodule >actual && + diff actual - <<-EOF +Submodule sm1 $head1..$head2: + > Add foo3 +EOF +" + +fullhead1=$(cd sm1; git rev-list --max-count=1 $head1) +fullhead2=$(cd sm1; git rev-list --max-count=1 $head2) +test_expect_success 'modified submodule(forward) --submodule=short' " + git diff --submodule=short >actual && + diff actual - <<-EOF +diff --git a/sm1 b/sm1 +index $head1..$head2 160000 +--- a/sm1 ++++ b/sm1 +@@ -1 +1 @@ +-Subproject commit $fullhead1 ++Subproject commit $fullhead2 +EOF +" + +commit_file sm1 && +cd sm1 && +git reset --hard HEAD~2 >/dev/null && +head3=$(git rev-parse --verify HEAD | cut -c1-7) && +cd .. + +test_expect_success 'modified submodule(backward)' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head2..$head3 (rewind): + < Add foo3 + < Add foo2 +EOF +" + +head4=$(add_file sm1 foo4 foo5) && +head4_full=$(GIT_DIR=sm1/.git git rev-parse --verify HEAD) +test_expect_success 'modified submodule(backward and forward)' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head2...$head4: + > Add foo5 + > Add foo4 + < Add foo3 + < Add foo2 +EOF +" + +commit_file sm1 && +mv sm1 sm1-bak && +echo sm1 >sm1 && +head5=$(git hash-object sm1 | cut -c1-7) && +git add sm1 && +rm -f sm1 && +mv sm1-bak sm1 + +test_expect_success 'typechanged submodule(submodule->blob), --cached' " + git diff --submodule=log --cached >actual && + diff actual - <<-EOF +Submodule sm1 41fbea9...0000000 (submodule deleted) +diff --git a/sm1 b/sm1 +new file mode 100644 +index 0000000..9da5fb8 +--- /dev/null ++++ b/sm1 +@@ -0,0 +1 @@ ++sm1 +EOF +" + +test_expect_success 'typechanged submodule(submodule->blob)' " + git diff --submodule=log >actual && + diff actual - <<-EOF +diff --git a/sm1 b/sm1 +deleted file mode 100644 +index 9da5fb8..0000000 +--- a/sm1 ++++ /dev/null +@@ -1 +0,0 @@ +-sm1 +Submodule sm1 0000000...$head4 (new submodule) +EOF +" + +rm -rf sm1 && +git checkout-index sm1 +test_expect_success 'typechanged submodule(submodule->blob)' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head4...0000000 (submodule deleted) +diff --git a/sm1 b/sm1 +new file mode 100644 +index 0000000..$head5 +--- /dev/null ++++ b/sm1 +@@ -0,0 +1 @@ ++sm1 +EOF +" + +rm -f sm1 && +test_create_repo sm1 && +head6=$(add_file sm1 foo6 foo7) +fullhead6=$(cd sm1; git rev-list --max-count=1 $head6) +test_expect_success 'nonexistent commit' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head4...$head6 (commits not present) +EOF +" + +commit_file +test_expect_success 'typechanged submodule(blob->submodule)' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +diff --git a/sm1 b/sm1 +deleted file mode 100644 +index $head5..0000000 +--- a/sm1 ++++ /dev/null +@@ -1 +0,0 @@ +-sm1 +Submodule sm1 0000000...$head6 (new submodule) +EOF +" + +commit_file sm1 && +rm -rf sm1 +test_expect_success 'deleted submodule' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head6...0000000 (submodule deleted) +EOF +" + +test_create_repo sm2 && +head7=$(add_file sm2 foo8 foo9) && +git add sm2 + +test_expect_success 'multiple submodules' " + git diff-index -p --submodule=log HEAD >actual && + diff actual - <<-EOF +Submodule sm1 $head6...0000000 (submodule deleted) +Submodule sm2 0000000...$head7 (new submodule) +EOF +" + +test_expect_success 'path filter' " + git diff-index -p --submodule=log HEAD sm2 >actual && + diff actual - <<-EOF +Submodule sm2 0000000...$head7 (new submodule) +EOF +" + +commit_file sm2 +test_expect_success 'given commit' " + git diff-index -p --submodule=log HEAD^ >actual && + diff actual - <<-EOF +Submodule sm1 $head6...0000000 (submodule deleted) +Submodule sm2 0000000...$head7 (new submodule) +EOF +" + +test_expect_success 'given commit --submodule' " + git diff-index -p --submodule HEAD^ >actual && + diff actual - <<-EOF +Submodule sm1 $head6...0000000 (submodule deleted) +Submodule sm2 0000000...$head7 (new submodule) +EOF +" + +fullhead7=$(cd sm2; git rev-list --max-count=1 $head7) + +test_expect_success 'given commit --submodule=short' " + git diff-index -p --submodule=short HEAD^ >actual && + diff actual - <<-EOF +diff --git a/sm1 b/sm1 +deleted file mode 160000 +index $head6..0000000 +--- a/sm1 ++++ /dev/null +@@ -1 +0,0 @@ +-Subproject commit $fullhead6 +diff --git a/sm2 b/sm2 +new file mode 160000 +index 0000000..$head7 +--- /dev/null ++++ b/sm2 +@@ -0,0 +1 @@ ++Subproject commit $fullhead7 +EOF +" + +test_done |