diff options
Diffstat (limited to 'commit.h')
| -rw-r--r-- | commit.h | 296 |
1 files changed, 260 insertions, 36 deletions
@@ -5,6 +5,8 @@ #include "tree.h" #include "strbuf.h" #include "decorate.h" +#include "gpg-interface.h" +#include "string-list.h" struct commit_list { struct commit *item; @@ -14,39 +16,106 @@ struct commit_list { struct commit { struct object object; void *util; - unsigned int indegree; + unsigned int index; unsigned long date; struct commit_list *parents; struct tree *tree; - char *buffer; }; extern int save_commit_buffer; extern const char *commit_type; /* While we can decorate any object with a name, it's only used for commits.. */ -extern struct decoration name_decoration; struct name_decoration { struct name_decoration *next; - char name[1]; + int type; + char name[FLEX_ARRAY]; }; +enum decoration_type { + DECORATION_NONE = 0, + DECORATION_REF_LOCAL, + DECORATION_REF_REMOTE, + DECORATION_REF_TAG, + DECORATION_REF_STASH, + DECORATION_REF_HEAD, + DECORATION_GRAFTED, +}; + +void add_name_decoration(enum decoration_type type, const char *name, struct object *obj); +const struct name_decoration *get_name_decoration(const struct object *obj); + struct commit *lookup_commit(const unsigned char *sha1); struct commit *lookup_commit_reference(const unsigned char *sha1); struct commit *lookup_commit_reference_gently(const unsigned char *sha1, int quiet); +struct commit *lookup_commit_reference_by_name(const char *name); -int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size); +/* + * Look up object named by "sha1", dereference tag as necessary, + * get a commit and return it. If "sha1" does not dereference to + * a commit, use ref_name to report an error and die. + */ +struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name); +int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size); int parse_commit(struct commit *item); +void parse_commit_or_die(struct commit *item); + +/* + * Associate an object buffer with the commit. The ownership of the + * memory is handed over to the commit, and must be free()-able. + */ +void set_commit_buffer(struct commit *, void *buffer, unsigned long size); + +/* + * Get any cached object buffer associated with the commit. Returns NULL + * if none. The resulting memory should not be freed. + */ +const void *get_cached_commit_buffer(const struct commit *, unsigned long *size); + +/* + * Get the commit's object contents, either from cache or by reading the object + * from disk. The resulting memory should not be modified, and must be given + * to unuse_commit_buffer when the caller is done. + */ +const void *get_commit_buffer(const struct commit *, unsigned long *size); + +/* + * Tell the commit subsytem that we are done with a particular commit buffer. + * The commit and buffer should be the input and return value, respectively, + * from an earlier call to get_commit_buffer. The buffer may or may not be + * freed by this call; callers should not access the memory afterwards. + */ +void unuse_commit_buffer(const struct commit *, const void *buffer); -struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p); +/* + * Free any cached object buffer associated with the commit. + */ +void free_commit_buffer(struct commit *); + +/* + * Disassociate any cached object buffer from the commit, but do not free it. + * The buffer (or NULL, if none) is returned. + */ +const void *detach_commit_buffer(struct commit *, unsigned long *sizep); + +/* Find beginning and length of commit subject. */ +int find_commit_subject(const char *commit_buffer, const char **subject); + +struct commit_list *commit_list_insert(struct commit *item, + struct commit_list **list); +struct commit_list **commit_list_append(struct commit *commit, + struct commit_list **next); unsigned commit_list_count(const struct commit_list *l); -struct commit_list * insert_by_date(struct commit *item, struct commit_list **list); +struct commit_list *commit_list_insert_by_date(struct commit *item, + struct commit_list **list); +void commit_list_sort_by_date(struct commit_list **list); -void free_commit_list(struct commit_list *list); +/* Shallow copy of the input list */ +struct commit_list *copy_commit_list(struct commit_list *list); -void sort_by_date(struct commit_list **list); +void free_commit_list(struct commit_list *list); /* Commit formats */ enum cmit_fmt { @@ -60,42 +129,66 @@ enum cmit_fmt { CMIT_FMT_EMAIL, CMIT_FMT_USERFORMAT, - CMIT_FMT_UNSPECIFIED, + CMIT_FMT_UNSPECIFIED }; -struct pretty_print_context -{ +struct pretty_print_context { + /* + * Callers should tweak these to change the behavior of pp_* functions. + */ + enum cmit_fmt fmt; int abbrev; const char *subject; const char *after_subject; + int preserve_subject; enum date_mode date_mode; + unsigned date_mode_explicit:1; int need_8bit_cte; + char *notes_message; struct reflog_walk_info *reflog_info; + const char *output_encoding; + struct string_list *mailmap; + int color; + struct ident_split *from_ident; + + /* + * Fields below here are manipulated internally by pp_* functions and + * should not be counted on by callers. + */ + struct string_list in_body_headers; +}; + +struct userformat_want { + unsigned notes:1; }; -extern int non_ascii(int); extern int has_non_ascii(const char *text); struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */ -extern char *reencode_commit_message(const struct commit *commit, - const char **encoding_p); +extern const char *logmsg_reencode(const struct commit *commit, + char **commit_encoding, + const char *output_encoding); extern void get_commit_format(const char *arg, struct rev_info *); +extern const char *format_subject(struct strbuf *sb, const char *msg, + const char *line_separator); +extern void userformat_find_requirements(const char *fmt, struct userformat_want *w); +extern int commit_format_is_empty(enum cmit_fmt); extern void format_commit_message(const struct commit *commit, const char *format, struct strbuf *sb, const struct pretty_print_context *context); -extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, - struct strbuf *sb, - const struct pretty_print_context *context); -void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb, - const char *line, enum date_mode dmode, - const char *encoding); -void pp_title_line(enum cmit_fmt fmt, +extern void pretty_print_commit(struct pretty_print_context *pp, + const struct commit *commit, + struct strbuf *sb); +extern void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit, + struct strbuf *sb); +void pp_user_info(struct pretty_print_context *pp, + const char *what, struct strbuf *sb, + const char *line, const char *encoding); +void pp_title_line(struct pretty_print_context *pp, const char **msg_p, struct strbuf *sb, - const char *subject, - const char *after_subject, const char *encoding, int need_8bit_cte); -void pp_remainder(enum cmit_fmt fmt, +void pp_remainder(struct pretty_print_context *pp, const char **msg_p, struct strbuf *sb, int indent); @@ -110,46 +203,98 @@ struct commit *pop_most_recent_commit(struct commit_list **list, struct commit *pop_commit(struct commit_list **stack); void clear_commit_marks(struct commit *commit, unsigned int mark); +void clear_commit_marks_many(int nr, struct commit **commit, unsigned int mark); +void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark); + + +enum rev_sort_order { + REV_SORT_IN_GRAPH_ORDER = 0, + REV_SORT_BY_COMMIT_DATE, + REV_SORT_BY_AUTHOR_DATE +}; /* * Performs an in-place topological sort of list supplied. * * invariant of resulting list is: * a reachable from b => ord(b) < ord(a) - * in addition, when lifo == 0, commits on parallel tracks are - * sorted in the dates order. + * sort_order further specifies: + * REV_SORT_IN_GRAPH_ORDER: try to show a commit on a single-parent + * chain together. + * REV_SORT_BY_COMMIT_DATE: show eligible commits in committer-date order. */ -void sort_in_topological_order(struct commit_list ** list, int lifo); +void sort_in_topological_order(struct commit_list **, enum rev_sort_order); struct commit_graft { unsigned char sha1[20]; int nr_parent; /* < 0 if shallow commit */ unsigned char parent[FLEX_ARRAY][20]; /* more */ }; +typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *); struct commit_graft *read_graft_line(char *buf, int len); int register_commit_graft(struct commit_graft *, int); struct commit_graft *lookup_commit_graft(const unsigned char *sha1); -const unsigned char *lookup_replace_object(const unsigned char *sha1); - -extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup); -extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos, int cleanup); +extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2); +extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos); extern struct commit_list *get_octopus_merge_bases(struct commit_list *in); +/* To be used only when object flags after this call no longer matter */ +extern struct commit_list *get_merge_bases_many_dirty(struct commit *one, int n, struct commit **twos); + +/* largest positive number a signed 32-bit integer can contain */ +#define INFINITE_DEPTH 0x7fffffff + +struct sha1_array; +struct ref; extern int register_shallow(const unsigned char *sha1); extern int unregister_shallow(const unsigned char *sha1); -extern int write_shallow_commits(int fd, int use_pack_protocol); +extern int for_each_commit_graft(each_commit_graft_fn, void *); extern int is_repository_shallow(void); extern struct commit_list *get_shallow_commits(struct object_array *heads, int depth, int shallow_flag, int not_shallow_flag); +extern void set_alternate_shallow_file(const char *path, int override); +extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol, + const struct sha1_array *extra); +extern void setup_alternate_shallow(struct lock_file *shallow_lock, + const char **alternate_shallow_file, + const struct sha1_array *extra); +extern const char *setup_temporary_shallow(const struct sha1_array *extra); +extern void advertise_shallow_grafts(int); + +struct shallow_info { + struct sha1_array *shallow; + int *ours, nr_ours; + int *theirs, nr_theirs; + struct sha1_array *ref; + + /* for receive-pack */ + uint32_t **used_shallow; + int *need_reachability_test; + int *reachable; + int *shallow_ref; + struct commit **commits; + int nr_commits; +}; + +extern void prepare_shallow_info(struct shallow_info *, struct sha1_array *); +extern void clear_shallow_info(struct shallow_info *); +extern void remove_nonexistent_theirs_shallow(struct shallow_info *); +extern void assign_shallow_commits_to_refs(struct shallow_info *info, + uint32_t **used, + int *ref_status); +extern int delayed_reachability_test(struct shallow_info *si, int c); +extern void prune_shallow(int show_only); +extern struct trace_key trace_shallow; int is_descendant_of(struct commit *, struct commit_list *); -int in_merge_bases(struct commit *, struct commit **, int); +int in_merge_bases(struct commit *, struct commit *); +int in_merge_bases_many(struct commit *, int, struct commit **); -extern int interactive_add(int argc, const char **argv, const char *prefix); +extern int interactive_add(int argc, const char **argv, const char *prefix, int patch); extern int run_add_interactive(const char *revision, const char *patch_mode, - const char **pathspec); + const struct pathspec *pathspec); static inline int single_parent(struct commit *commit) { @@ -158,4 +303,83 @@ static inline int single_parent(struct commit *commit) struct commit_list *reduce_heads(struct commit_list *heads); +struct commit_extra_header { + struct commit_extra_header *next; + char *key; + char *value; + size_t len; +}; + +extern void append_merge_tag_headers(struct commit_list *parents, + struct commit_extra_header ***tail); + +extern int commit_tree(const char *msg, size_t msg_len, + const unsigned char *tree, + struct commit_list *parents, unsigned char *ret, + const char *author, const char *sign_commit); + +extern int commit_tree_extended(const char *msg, size_t msg_len, + const unsigned char *tree, + struct commit_list *parents, unsigned char *ret, + const char *author, const char *sign_commit, + struct commit_extra_header *); + +extern struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **); + +extern void free_commit_extra_headers(struct commit_extra_header *extra); + +/* + * Search the commit object contents given by "msg" for the header "key". + * Returns a pointer to the start of the header contents, or NULL. The length + * of the header, up to the first newline, is returned via out_len. + * + * Note that some headers (like mergetag) may be multi-line. It is the caller's + * responsibility to parse further in this case! + */ +extern const char *find_commit_header(const char *msg, const char *key, + size_t *out_len); + +/* Find the end of the log message, the right place for a new trailer. */ +extern int ignore_non_trailer(struct strbuf *sb); + +typedef void (*each_mergetag_fn)(struct commit *commit, struct commit_extra_header *extra, + void *cb_data); + +extern void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data); + +struct merge_remote_desc { + struct object *obj; /* the named object, could be a tag */ + const char *name; +}; +#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util)) + +/* + * Given "name" from the command line to merge, find the commit object + * and return it, while storing merge_remote_desc in its ->util field, + * to allow callers to tell if we are told to merge a tag. + */ +struct commit *get_merge_parent(const char *name); + +extern int parse_signed_commit(const struct commit *commit, + struct strbuf *message, struct strbuf *signature); +extern int remove_signature(struct strbuf *buf); + +extern void print_commit_list(struct commit_list *list, + const char *format_cur, + const char *format_last); + +/* + * Check the signature of the given commit. The result of the check is stored + * in sig->check_result, 'G' for a good signature, 'U' for a good signature + * from an untrusted signer, 'B' for a bad signature and 'N' for no signature + * at all. This may allocate memory for sig->gpg_output, sig->gpg_status, + * sig->signer and sig->key. + */ +extern void check_commit_signature(const struct commit *commit, struct signature_check *sigc); + +int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused); + +LAST_ARG_MUST_BE_NULL +extern int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...); + #endif /* COMMIT_H */ |