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Merge branch 'sb/submodule-helper-clone-regression-fix' into maint
A partial rewrite of "git submodule" in the 2.7 timeframe changed the way the gitdir: pointer in the submodules point at the real repository location to use absolute paths by accident. This has been corrected. * sb/submodule-helper-clone-regression-fix: submodule--helper, module_clone: catch fprintf failure submodule--helper: do not borrow absolute_path() result for too long submodule--helper, module_clone: always operate on absolute paths submodule--helper clone: create the submodule path just once submodule--helper: fix potential NULL-dereference recursive submodules: test for relative paths
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commit
f5e16b2a7b
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@ -147,11 +147,11 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
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static int module_clone(int argc, const char **argv, const char *prefix)
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{
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const char *path = NULL, *name = NULL, *url = NULL;
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const char *name = NULL, *url = NULL;
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const char *reference = NULL, *depth = NULL;
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int quiet = 0;
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FILE *submodule_dot_git;
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char *sm_gitdir, *cwd, *p;
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char *p, *path = NULL, *sm_gitdir;
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struct strbuf rel_path = STRBUF_INIT;
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struct strbuf sb = STRBUF_INIT;
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@ -188,8 +188,18 @@ static int module_clone(int argc, const char **argv, const char *prefix)
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argc = parse_options(argc, argv, prefix, module_clone_options,
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git_submodule_helper_usage, 0);
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if (!path || !*path)
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die(_("submodule--helper: unspecified or empty --path"));
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strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
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sm_gitdir = strbuf_detach(&sb, NULL);
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sm_gitdir = xstrdup(absolute_path(sb.buf));
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strbuf_reset(&sb);
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if (!is_absolute_path(path)) {
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strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
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path = strbuf_detach(&sb, NULL);
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} else
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path = xstrdup(path);
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if (!file_exists(sm_gitdir)) {
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if (safe_create_leading_directories_const(sm_gitdir) < 0)
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@ -206,45 +216,30 @@ static int module_clone(int argc, const char **argv, const char *prefix)
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}
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/* Write a .git file in the submodule to redirect to the superproject. */
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if (safe_create_leading_directories_const(path) < 0)
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die(_("could not create directory '%s'"), path);
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if (path && *path)
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strbuf_addf(&sb, "%s/.git", path);
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else
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strbuf_addstr(&sb, ".git");
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if (safe_create_leading_directories_const(sb.buf) < 0)
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die(_("could not create leading directories of '%s'"), sb.buf);
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submodule_dot_git = fopen(sb.buf, "w");
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if (!submodule_dot_git)
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die_errno(_("cannot open file '%s'"), sb.buf);
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fprintf(submodule_dot_git, "gitdir: %s\n",
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fprintf_or_die(submodule_dot_git, "gitdir: %s\n",
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relative_path(sm_gitdir, path, &rel_path));
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if (fclose(submodule_dot_git))
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die(_("could not close file %s"), sb.buf);
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strbuf_reset(&sb);
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strbuf_reset(&rel_path);
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cwd = xgetcwd();
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/* Redirect the worktree of the submodule in the superproject's config */
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if (!is_absolute_path(sm_gitdir)) {
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strbuf_addf(&sb, "%s/%s", cwd, sm_gitdir);
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free(sm_gitdir);
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sm_gitdir = strbuf_detach(&sb, NULL);
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}
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strbuf_addf(&sb, "%s/%s", cwd, path);
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p = git_pathdup_submodule(path, "config");
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if (!p)
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die(_("could not get submodule directory for '%s'"), path);
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git_config_set_in_file(p, "core.worktree",
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relative_path(sb.buf, sm_gitdir, &rel_path));
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relative_path(path, sm_gitdir, &rel_path));
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strbuf_release(&sb);
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strbuf_release(&rel_path);
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free(sm_gitdir);
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free(cwd);
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free(path);
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free(p);
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return 0;
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}
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@ -818,6 +818,47 @@ test_expect_success 'submodule add --name allows to replace a submodule with ano
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)
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'
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test_expect_success 'recursive relative submodules stay relative' '
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test_when_finished "rm -rf super clone2 subsub sub3" &&
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mkdir subsub &&
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(
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cd subsub &&
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git init &&
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>t &&
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git add t &&
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git commit -m "initial commit"
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) &&
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mkdir sub3 &&
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(
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cd sub3 &&
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git init &&
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>t &&
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git add t &&
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git commit -m "initial commit" &&
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git submodule add ../subsub dirdir/subsub &&
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git commit -m "add submodule subsub"
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) &&
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mkdir super &&
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(
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cd super &&
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git init &&
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>t &&
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git add t &&
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git commit -m "initial commit" &&
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git submodule add ../sub3 &&
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git commit -m "add submodule sub"
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) &&
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git clone super clone2 &&
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(
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cd clone2 &&
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git submodule update --init --recursive &&
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echo "gitdir: ../.git/modules/sub3" >./sub3/.git_expect &&
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echo "gitdir: ../../../.git/modules/sub3/modules/dirdir/subsub" >./sub3/dirdir/subsub/.git_expect
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) &&
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test_cmp clone2/sub3/.git_expect clone2/sub3/.git &&
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test_cmp clone2/sub3/dirdir/subsub/.git_expect clone2/sub3/dirdir/subsub/.git
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'
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test_expect_success 'submodule add with an existing name fails unless forced' '
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(
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cd addtest2 &&
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