#include "blob.h"
#include "thread-utils.h"
#include "quote.h"
+#include "worktree.h"
static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
static int parallel_jobs = 1;
static int add_submodule_odb(const char *path)
{
struct strbuf objects_directory = STRBUF_INIT;
- struct alternate_object_database *alt_odb;
int ret = 0;
- size_t alloc;
- strbuf_git_path_submodule(&objects_directory, path, "objects/");
+ ret = strbuf_git_path_submodule(&objects_directory, path, "objects/");
+ if (ret)
+ goto done;
if (!is_directory(objects_directory.buf)) {
ret = -1;
goto done;
}
- /* avoid adding it twice */
- prepare_alt_odb();
- 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))
- goto done;
-
- alloc = st_add(objects_directory.len, 42); /* for "12/345..." sha1 */
- alt_odb = xmalloc(st_add(sizeof(*alt_odb), alloc));
- alt_odb->next = alt_odb_list;
- xsnprintf(alt_odb->base, alloc, "%s", 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;
-
- /* add possible alternates from the submodule */
- read_info_alternates(objects_directory.buf, 0);
+ add_to_alternates_memory(objects_directory.buf);
done:
strbuf_release(&objects_directory);
return ret;
static int prepare_submodule_summary(struct rev_info *rev, const char *path,
struct commit *left, struct commit *right,
- int *fast_forward, int *fast_backward)
+ struct commit_list *merge_bases)
{
- struct commit_list *merge_bases, *list;
+ struct commit_list *list;
init_revisions(rev, NULL);
setup_revisions(0, NULL, rev, NULL);
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);
- 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,
strbuf_release(&sb);
}
-void show_submodule_summary(FILE *f, const char *path,
+/* Helper function to display the submodule header line prior to the full
+ * summary output. If it can locate the submodule objects directory it will
+ * attempt to lookup both the left and right commits and put them into the
+ * left and right pointers.
+ */
+static void show_submodule_header(FILE *f, const char *path,
const char *line_prefix,
- unsigned char one[20], unsigned char two[20],
+ struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
- const char *del, const char *add, const char *reset)
+ const char *reset,
+ struct commit **left, struct commit **right,
+ struct commit_list **merge_bases)
{
- struct rev_info rev;
- struct commit *left = NULL, *right = NULL;
const char *message = NULL;
struct strbuf sb = STRBUF_INIT;
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)";
- else if (prepare_submodule_summary(&rev, path, left, right,
- &fast_forward, &fast_backward))
- message = "(revision walker failed)";
-
if (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
fprintf(f, "%sSubmodule %s contains untracked content\n",
line_prefix, path);
fprintf(f, "%sSubmodule %s contains modified content\n",
line_prefix, path);
- if (!hashcmp(one, two)) {
+ if (is_null_oid(one))
+ message = "(new submodule)";
+ else if (is_null_oid(two))
+ message = "(submodule deleted)";
+
+ if (add_submodule_odb(path)) {
+ if (!message)
+ message = "(not initialized)";
+ goto output_header;
+ }
+
+ /*
+ * Attempt to lookup the commit references, and determine if this is
+ * a fast forward or fast backwards update.
+ */
+ *left = lookup_commit_reference(one->hash);
+ *right = lookup_commit_reference(two->hash);
+
+ /*
+ * Warn about missing commits in the submodule project, but only if
+ * they aren't null.
+ */
+ if ((!is_null_oid(one) && !*left) ||
+ (!is_null_oid(two) && !*right))
+ message = "(commits not present)";
+
+ *merge_bases = get_merge_bases(*left, *right);
+ if (*merge_bases) {
+ if ((*merge_bases)->item == *left)
+ fast_forward = 1;
+ else if ((*merge_bases)->item == *right)
+ fast_backward = 1;
+ }
+
+ if (!oidcmp(one, two)) {
strbuf_release(&sb);
return;
}
- strbuf_addf(&sb, "%s%sSubmodule %s %s..", line_prefix, meta, 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));
+output_header:
+ strbuf_addf(&sb, "%s%sSubmodule %s ", line_prefix, meta, path);
+ strbuf_add_unique_abbrev(&sb, one->hash, DEFAULT_ABBREV);
+ strbuf_addstr(&sb, (fast_backward || fast_forward) ? ".." : "...");
+ strbuf_add_unique_abbrev(&sb, two->hash, DEFAULT_ABBREV);
if (message)
strbuf_addf(&sb, " %s%s\n", message, reset);
else
strbuf_addf(&sb, "%s:%s\n", fast_backward ? " (rewind)" : "", reset);
fwrite(sb.buf, sb.len, 1, f);
- if (!message) /* only NULL if we succeeded in setting up the walk */
- print_submodule_summary(&rev, f, line_prefix, del, add, reset);
+ strbuf_release(&sb);
+}
+
+void show_submodule_summary(FILE *f, const char *path,
+ const char *line_prefix,
+ struct object_id *one, struct object_id *two,
+ unsigned dirty_submodule, const char *meta,
+ const char *del, const char *add, const char *reset)
+{
+ struct rev_info rev;
+ struct commit *left = NULL, *right = NULL;
+ struct commit_list *merge_bases = NULL;
+
+ show_submodule_header(f, path, line_prefix, one, two, dirty_submodule,
+ meta, reset, &left, &right, &merge_bases);
+
+ /*
+ * If we don't have both a left and a right pointer, there is no
+ * reason to try and display a summary. The header line should contain
+ * all the information the user needs.
+ */
+ if (!left || !right)
+ goto out;
+
+ /* Treat revision walker failure the same as missing commits */
+ if (prepare_submodule_summary(&rev, path, left, right, merge_bases)) {
+ fprintf(f, "%s(revision walker failed)\n", line_prefix);
+ goto out;
+ }
+
+ print_submodule_summary(&rev, f, line_prefix, del, add, reset);
+
+out:
+ if (merge_bases)
+ free_commit_list(merge_bases);
+ clear_commit_marks(left, ~0);
+ clear_commit_marks(right, ~0);
+}
+
+void show_submodule_inline_diff(FILE *f, const char *path,
+ const char *line_prefix,
+ struct object_id *one, struct object_id *two,
+ unsigned dirty_submodule, const char *meta,
+ const char *del, const char *add, const char *reset,
+ const struct diff_options *o)
+{
+ const struct object_id *old = &empty_tree_oid, *new = &empty_tree_oid;
+ struct commit *left = NULL, *right = NULL;
+ struct commit_list *merge_bases = NULL;
+ struct strbuf submodule_dir = STRBUF_INIT;
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ show_submodule_header(f, path, line_prefix, one, two, dirty_submodule,
+ meta, reset, &left, &right, &merge_bases);
+
+ /* We need a valid left and right commit to display a difference */
+ if (!(left || is_null_oid(one)) ||
+ !(right || is_null_oid(two)))
+ goto done;
+
+ if (left)
+ old = one;
+ if (right)
+ new = two;
+
+ fflush(f);
+ cp.git_cmd = 1;
+ cp.dir = path;
+ cp.out = dup(fileno(f));
+ cp.no_stdin = 1;
+
+ /* TODO: other options may need to be passed here. */
+ argv_array_push(&cp.args, "diff");
+ argv_array_pushf(&cp.args, "--line-prefix=%s", line_prefix);
+ if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
+ argv_array_pushf(&cp.args, "--src-prefix=%s%s/",
+ o->b_prefix, path);
+ argv_array_pushf(&cp.args, "--dst-prefix=%s%s/",
+ o->a_prefix, path);
+ } else {
+ argv_array_pushf(&cp.args, "--src-prefix=%s%s/",
+ o->a_prefix, path);
+ argv_array_pushf(&cp.args, "--dst-prefix=%s%s/",
+ o->b_prefix, path);
+ }
+ argv_array_push(&cp.args, oid_to_hex(old));
+ /*
+ * If the submodule has modified content, we will diff against the
+ * work tree, under the assumption that the user has asked for the
+ * diff format and wishes to actually see all differences even if they
+ * haven't yet been committed to the submodule yet.
+ */
+ if (!(dirty_submodule & DIRTY_SUBMODULE_MODIFIED))
+ argv_array_push(&cp.args, oid_to_hex(new));
+
+ if (run_command(&cp))
+ fprintf(f, "(diff failed)\n");
+
+done:
+ strbuf_release(&submodule_dir);
+ if (merge_bases)
+ free_commit_list(merge_bases);
if (left)
clear_commit_marks(left, ~0);
if (right)
clear_commit_marks(right, ~0);
-
- strbuf_release(&sb);
}
void set_config_fetch_recurse_submodules(int value)
sha1_array_append(&ref_tips_after_fetch, new_sha1);
}
-static void add_sha1_to_argv(const unsigned char sha1[20], void *data)
+static int add_sha1_to_argv(const unsigned char sha1[20], void *data)
{
argv_array_push(data, sha1_to_hex(sha1));
+ return 0;
}
static void calculate_changed_submodule_paths(void)
return 0;
}
-/* Update gitfile and core.worktree setting to connect work tree and git dir */
-void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
-{
- struct strbuf file_name = STRBUF_INIT;
- struct strbuf rel_path = STRBUF_INIT;
- const char *real_work_tree = xstrdup(real_path(work_tree));
-
- /* Update gitfile */
- strbuf_addf(&file_name, "%s/.git", work_tree);
- write_file(file_name.buf, "gitdir: %s",
- relative_path(git_dir, real_work_tree, &rel_path));
-
- /* Update core.worktree setting */
- strbuf_reset(&file_name);
- strbuf_addf(&file_name, "%s/config", git_dir);
- git_config_set_in_file(file_name.buf, "core.worktree",
- relative_path(real_work_tree, git_dir,
- &rel_path));
-
- strbuf_release(&file_name);
- strbuf_release(&rel_path);
- free((void *)real_work_tree);
-}
-
int parallel_submodules(void)
{
return parallel_jobs;
}
argv_array_push(out, "GIT_DIR=.git");
}
+
+/*
+ * Embeds a single submodules git directory into the superprojects git dir,
+ * non recursively.
+ */
+static void relocate_single_git_dir_into_superproject(const char *prefix,
+ const char *path)
+{
+ char *old_git_dir = NULL, *real_old_git_dir = NULL, *real_new_git_dir = NULL;
+ const char *new_git_dir;
+ const struct submodule *sub;
+
+ if (submodule_uses_worktrees(path))
+ die(_("relocate_gitdir for submodule '%s' with "
+ "more than one worktree not supported"), path);
+
+ old_git_dir = xstrfmt("%s/.git", path);
+ if (read_gitfile(old_git_dir))
+ /* If it is an actual gitfile, it doesn't need migration. */
+ return;
+
+ real_old_git_dir = xstrdup(real_path(old_git_dir));
+
+ sub = submodule_from_path(null_sha1, path);
+ if (!sub)
+ die(_("could not lookup name for submodule '%s'"), path);
+
+ new_git_dir = git_path("modules/%s", sub->name);
+ if (safe_create_leading_directories_const(new_git_dir) < 0)
+ die(_("could not create directory '%s'"), new_git_dir);
+ real_new_git_dir = xstrdup(real_path(new_git_dir));
+
+ if (!prefix)
+ prefix = get_super_prefix();
+
+ fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"),
+ prefix ? prefix : "", path,
+ real_old_git_dir, real_new_git_dir);
+
+ relocate_gitdir(path, real_old_git_dir, real_new_git_dir);
+
+ free(old_git_dir);
+ free(real_old_git_dir);
+ free(real_new_git_dir);
+}
+
+/*
+ * Migrate the git directory of the submodule given by path from
+ * having its git directory within the working tree to the git dir nested
+ * in its superprojects git dir under modules/.
+ */
+void absorb_git_dir_into_superproject(const char *prefix,
+ const char *path,
+ unsigned flags)
+{
+ const char *sub_git_dir, *v;
+ char *real_sub_git_dir = NULL, *real_common_git_dir = NULL;
+ struct strbuf gitdir = STRBUF_INIT;
+
+ strbuf_addf(&gitdir, "%s/.git", path);
+ sub_git_dir = resolve_gitdir(gitdir.buf);
+
+ /* Not populated? */
+ if (!sub_git_dir)
+ goto out;
+
+ /* Is it already absorbed into the superprojects git dir? */
+ real_sub_git_dir = xstrdup(real_path(sub_git_dir));
+ real_common_git_dir = xstrdup(real_path(get_git_common_dir()));
+ if (!skip_prefix(real_sub_git_dir, real_common_git_dir, &v))
+ relocate_single_git_dir_into_superproject(prefix, path);
+
+ if (flags & ABSORB_GITDIR_RECURSE_SUBMODULES) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf sb = STRBUF_INIT;
+
+ if (flags & ~ABSORB_GITDIR_RECURSE_SUBMODULES)
+ die("BUG: we don't know how to pass the flags down?");
+
+ if (get_super_prefix())
+ strbuf_addstr(&sb, get_super_prefix());
+ strbuf_addstr(&sb, path);
+ strbuf_addch(&sb, '/');
+
+ cp.dir = path;
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ argv_array_pushl(&cp.args, "--super-prefix", sb.buf,
+ "submodule--helper",
+ "absorb-git-dirs", NULL);
+ prepare_submodule_repo_env(&cp.env_array);
+ if (run_command(&cp))
+ die(_("could not recurse into submodule '%s'"), path);
+
+ strbuf_release(&sb);
+ }
+
+out:
+ strbuf_release(&gitdir);
+ free(real_sub_git_dir);
+ free(real_common_git_dir);
+}