merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 154 insertions, 0 deletions

diff --git a/third_party/git/submodule.h b/third_party/git/submodule.h
new file mode 100644
index 0000000000..8072e6d6dd
--- /dev/null
+++ b/third_party/git/submodule.h
@@ -0,0 +1,154 @@
+#ifndef SUBMODULE_H
+#define SUBMODULE_H
+
+struct argv_array;
+struct cache_entry;
+struct diff_options;
+struct index_state;
+struct object_id;
+struct oid_array;
+struct pathspec;
+struct remote;
+struct repository;
+struct string_list;
+struct strbuf;
+
+enum {
+	RECURSE_SUBMODULES_ONLY = -5,
+	RECURSE_SUBMODULES_CHECK = -4,
+	RECURSE_SUBMODULES_ERROR = -3,
+	RECURSE_SUBMODULES_NONE = -2,
+	RECURSE_SUBMODULES_ON_DEMAND = -1,
+	RECURSE_SUBMODULES_OFF = 0,
+	RECURSE_SUBMODULES_DEFAULT = 1,
+	RECURSE_SUBMODULES_ON = 2
+};
+
+enum submodule_update_type {
+	SM_UPDATE_UNSPECIFIED = 0,
+	SM_UPDATE_CHECKOUT,
+	SM_UPDATE_REBASE,
+	SM_UPDATE_MERGE,
+	SM_UPDATE_NONE,
+	SM_UPDATE_COMMAND
+};
+
+struct submodule_update_strategy {
+	enum submodule_update_type type;
+	const char *command;
+};
+#define SUBMODULE_UPDATE_STRATEGY_INIT {SM_UPDATE_UNSPECIFIED, NULL}
+
+int is_gitmodules_unmerged(const struct index_state *istate);
+int is_writing_gitmodules_ok(void);
+int is_staging_gitmodules_ok(struct index_state *istate);
+int update_path_in_gitmodules(const char *oldpath, const char *newpath);
+int remove_path_from_gitmodules(const char *path);
+void stage_updated_gitmodules(struct index_state *istate);
+void set_diffopt_flags_from_submodule_config(struct diff_options *,
+					     const char *path);
+int git_default_submodule_config(const char *var, const char *value, void *cb);
+
+struct option;
+int option_parse_recurse_submodules_worktree_updater(const struct option *opt,
+						     const char *arg, int unset);
+int is_submodule_active(struct repository *repo, const char *path);
+/*
+ * Determine if a submodule has been populated at a given 'path' by checking if
+ * the <path>/.git resolves to a valid git repository.
+ * If return_error_code is NULL, die on error.
+ * Otherwise the return error code is the same as of resolve_gitdir_gently.
+ */
+int is_submodule_populated_gently(const char *path, int *return_error_code);
+void die_in_unpopulated_submodule(const struct index_state *istate,
+				  const char *prefix);
+void die_path_inside_submodule(const struct index_state *istate,
+			       const struct pathspec *ps);
+enum submodule_update_type parse_submodule_update_type(const char *value);
+int parse_submodule_update_strategy(const char *value,
+				    struct submodule_update_strategy *dst);
+const char *submodule_strategy_to_string(const struct submodule_update_strategy *s);
+void handle_ignore_submodules_arg(struct diff_options *, const char *);
+void show_submodule_summary(struct diff_options *o, const char *path,
+			    struct object_id *one, struct object_id *two,
+			    unsigned dirty_submodule);
+void show_submodule_inline_diff(struct diff_options *o, const char *path,
+				struct object_id *one, struct object_id *two,
+				unsigned dirty_submodule);
+/* Check if we want to update any submodule.*/
+int should_update_submodules(void);
+/*
+ * Returns the submodule struct if the given ce entry is a submodule
+ * and it should be updated. Returns NULL otherwise.
+ */
+const struct submodule *submodule_from_ce(const struct cache_entry *ce);
+void check_for_new_submodule_commits(struct object_id *oid);
+int fetch_populated_submodules(struct repository *r,
+			       const struct argv_array *options,
+			       const char *prefix,
+			       int command_line_option,
+			       int default_option,
+			       int quiet, int max_parallel_jobs);
+unsigned is_submodule_modified(const char *path, int ignore_untracked);
+int submodule_uses_gitfile(const char *path);
+
+#define SUBMODULE_REMOVAL_DIE_ON_ERROR (1<<0)
+#define SUBMODULE_REMOVAL_IGNORE_UNTRACKED (1<<1)
+#define SUBMODULE_REMOVAL_IGNORE_IGNORED_UNTRACKED (1<<2)
+int bad_to_remove_submodule(const char *path, unsigned flags);
+
+int add_submodule_odb(const char *path);
+
+/*
+ * Checks if there are submodule changes in a..b. If a is the null OID,
+ * checks b and all its ancestors instead.
+ */
+int submodule_touches_in_range(struct repository *r,
+			       struct object_id *a,
+			       struct object_id *b);
+int find_unpushed_submodules(struct repository *r,
+			     struct oid_array *commits,
+			     const char *remotes_name,
+			     struct string_list *needs_pushing);
+struct refspec;
+int push_unpushed_submodules(struct repository *r,
+			     struct oid_array *commits,
+			     const struct remote *remote,
+			     const struct refspec *rs,
+			     const struct string_list *push_options,
+			     int dry_run);
+/*
+ * Given a submodule path (as in the index), return the repository
+ * path of that submodule in 'buf'. Return -1 on error or when the
+ * submodule is not initialized.
+ */
+int submodule_to_gitdir(struct strbuf *buf, const char *submodule);
+
+#define SUBMODULE_MOVE_HEAD_DRY_RUN (1<<0)
+#define SUBMODULE_MOVE_HEAD_FORCE   (1<<1)
+int submodule_move_head(const char *path,
+			const char *old,
+			const char *new_head,
+			unsigned flags);
+
+void submodule_unset_core_worktree(const struct submodule *sub);
+
+/*
+ * Prepare the "env_array" parameter of a "struct child_process" for executing
+ * a submodule by clearing any repo-specific environment variables, but
+ * retaining any config in the environment.
+ */
+void prepare_submodule_repo_env(struct argv_array *out);
+
+#define ABSORB_GITDIR_RECURSE_SUBMODULES (1<<0)
+void absorb_git_dir_into_superproject(const char *path,
+				      unsigned flags);
+
+/*
+ * Return the absolute path of the working tree of the superproject, which this
+ * project is a submodule of. If this repository is not a submodule of
+ * another repository, return NULL.
+ */
+const char *get_superproject_working_tree(void);
+
+#endif