mirror of
https://github.com/git/git
synced 2024-10-30 14:03:28 +00:00
6bcc5fa20d
Rename add_commit_signature as add_header_signature, and expose it so that it can be used for converting tags from one object format to another. Inspired-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
375 lines
13 KiB
C
375 lines
13 KiB
C
#ifndef COMMIT_H
|
|
#define COMMIT_H
|
|
|
|
#include "object.h"
|
|
|
|
struct signature_check;
|
|
struct strbuf;
|
|
struct tree;
|
|
|
|
#define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF
|
|
#define GENERATION_NUMBER_INFINITY ((1ULL << 63) - 1)
|
|
#define GENERATION_NUMBER_V1_MAX 0x3FFFFFFF
|
|
#define GENERATION_NUMBER_ZERO 0
|
|
#define GENERATION_NUMBER_V2_OFFSET_MAX ((1ULL << 31) - 1)
|
|
|
|
struct commit_list {
|
|
struct commit *item;
|
|
struct commit_list *next;
|
|
};
|
|
|
|
/*
|
|
* The size of this struct matters in full repo walk operations like
|
|
* 'git clone' or 'git gc'. Consider using commit-slab to attach data
|
|
* to a commit instead of adding new fields here.
|
|
*/
|
|
struct commit {
|
|
struct object object;
|
|
timestamp_t date;
|
|
struct commit_list *parents;
|
|
|
|
/*
|
|
* If the commit is loaded from the commit-graph file, then this
|
|
* member may be NULL. Only access it through repo_get_commit_tree()
|
|
* or get_commit_tree_oid().
|
|
*/
|
|
struct tree *maybe_tree;
|
|
unsigned int index;
|
|
};
|
|
|
|
extern int save_commit_buffer;
|
|
extern int no_graft_file_deprecated_advice;
|
|
extern const char *commit_type;
|
|
|
|
/* While we can decorate any object with a name, it's only used for commits.. */
|
|
struct name_decoration {
|
|
struct name_decoration *next;
|
|
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);
|
|
|
|
/*
|
|
* Look up commit named by "oid" respecting replacement objects.
|
|
* Returns NULL if "oid" is not a commit or does not exist.
|
|
*/
|
|
struct commit *lookup_commit_object(struct repository *r, const struct object_id *oid);
|
|
|
|
/*
|
|
* Look up commit named by "oid" without replacement objects or
|
|
* checking for object existence. Returns the requested commit if it
|
|
* is found in the object cache, NULL if "oid" is in the object cache
|
|
* but is not a commit and a newly allocated unparsed commit object if
|
|
* "oid" is not in the object cache.
|
|
*/
|
|
struct commit *lookup_commit(struct repository *r, const struct object_id *oid);
|
|
struct commit *lookup_commit_reference(struct repository *r,
|
|
const struct object_id *oid);
|
|
struct commit *lookup_commit_reference_gently(struct repository *r,
|
|
const struct object_id *oid,
|
|
int quiet);
|
|
struct commit *lookup_commit_reference_by_name(const char *name);
|
|
|
|
/*
|
|
* Look up object named by "oid", dereference tag as necessary,
|
|
* get a commit and return it. If "oid" does not dereference to
|
|
* a commit, use ref_name to report an error and die.
|
|
*/
|
|
struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref_name);
|
|
|
|
int parse_commit_buffer(struct repository *r, struct commit *item, const void *buffer, unsigned long size, int check_graph);
|
|
int repo_parse_commit_internal(struct repository *r, struct commit *item,
|
|
int quiet_on_missing, int use_commit_graph);
|
|
int repo_parse_commit_gently(struct repository *r,
|
|
struct commit *item,
|
|
int quiet_on_missing);
|
|
static inline int repo_parse_commit(struct repository *r, struct commit *item)
|
|
{
|
|
return repo_parse_commit_gently(r, item, 0);
|
|
}
|
|
|
|
static inline int repo_parse_commit_no_graph(struct repository *r,
|
|
struct commit *commit)
|
|
{
|
|
return repo_parse_commit_internal(r, commit, 0, 0);
|
|
}
|
|
|
|
void parse_commit_or_die(struct commit *item);
|
|
|
|
struct buffer_slab;
|
|
struct buffer_slab *allocate_commit_buffer_slab(void);
|
|
void free_commit_buffer_slab(struct buffer_slab *bs);
|
|
|
|
/*
|
|
* 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 repository *r, 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(struct repository *, 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 repo_unuse_commit_buffer when the caller is done.
|
|
*/
|
|
const void *repo_get_commit_buffer(struct repository *r,
|
|
const struct commit *,
|
|
unsigned long *size);
|
|
|
|
/*
|
|
* Tell the commit subsystem 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 repo_get_commit_buffer. The buffer may or may not be
|
|
* freed by this call; callers should not access the memory afterwards.
|
|
*/
|
|
void repo_unuse_commit_buffer(struct repository *r,
|
|
const struct commit *,
|
|
const void *buffer);
|
|
|
|
/*
|
|
* Free any cached object buffer associated with the commit.
|
|
*/
|
|
void free_commit_buffer(struct parsed_object_pool *pool, struct commit *);
|
|
|
|
struct tree *repo_get_commit_tree(struct repository *, const struct commit *);
|
|
struct object_id *get_commit_tree_oid(const struct commit *);
|
|
|
|
/*
|
|
* Release memory related to a commit, including the parent list and
|
|
* any cached object buffer.
|
|
*/
|
|
void release_commit_memory(struct parsed_object_pool *pool, struct commit *c);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/* Return length of the commit subject from commit log message. */
|
|
size_t commit_subject_length(const char *body);
|
|
|
|
struct commit_list *commit_list_insert(struct commit *item,
|
|
struct commit_list **list);
|
|
int commit_list_contains(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 *commit_list_insert_by_date(struct commit *item,
|
|
struct commit_list **list);
|
|
void commit_list_sort_by_date(struct commit_list **list);
|
|
|
|
/* Shallow copy of the input list */
|
|
struct commit_list *copy_commit_list(struct commit_list *list);
|
|
|
|
/* Modify list in-place to reverse it, returning new head; list will be tail */
|
|
struct commit_list *reverse_commit_list(struct commit_list *list);
|
|
|
|
void free_commit_list(struct commit_list *list);
|
|
|
|
struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
|
|
|
|
const char *repo_logmsg_reencode(struct repository *r,
|
|
const struct commit *commit,
|
|
char **commit_encoding,
|
|
const char *output_encoding);
|
|
|
|
const char *skip_blank_lines(const char *msg);
|
|
|
|
/** Removes the first commit from a list sorted by date, and adds all
|
|
* of its parents.
|
|
**/
|
|
struct commit *pop_most_recent_commit(struct commit_list **list,
|
|
unsigned int mark);
|
|
|
|
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);
|
|
|
|
|
|
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)
|
|
* 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 **, enum rev_sort_order);
|
|
|
|
struct commit_graft {
|
|
struct object_id oid;
|
|
int nr_parent; /* < 0 if shallow commit */
|
|
struct object_id parent[FLEX_ARRAY]; /* more */
|
|
};
|
|
typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
|
|
|
|
struct commit_graft *read_graft_line(struct strbuf *line);
|
|
/* commit_graft_pos returns an index into r->parsed_objects->grafts. */
|
|
int commit_graft_pos(struct repository *r, const struct object_id *oid);
|
|
int register_commit_graft(struct repository *r, struct commit_graft *, int);
|
|
void prepare_commit_graft(struct repository *r);
|
|
struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid);
|
|
void reset_commit_grafts(struct repository *r);
|
|
|
|
struct commit *get_fork_point(const char *refname, struct commit *commit);
|
|
|
|
/* largest positive number a signed 32-bit integer can contain */
|
|
#define INFINITE_DEPTH 0x7fffffff
|
|
|
|
struct oid_array;
|
|
struct ref;
|
|
int for_each_commit_graft(each_commit_graft_fn, void *);
|
|
|
|
int interactive_add(const char **argv, const char *prefix, int patch);
|
|
|
|
struct commit_extra_header {
|
|
struct commit_extra_header *next;
|
|
char *key;
|
|
char *value;
|
|
size_t len;
|
|
};
|
|
|
|
void append_merge_tag_headers(struct commit_list *parents,
|
|
struct commit_extra_header ***tail);
|
|
|
|
int commit_tree(const char *msg, size_t msg_len,
|
|
const struct object_id *tree,
|
|
struct commit_list *parents, struct object_id *ret,
|
|
const char *author, const char *sign_commit);
|
|
|
|
int commit_tree_extended(const char *msg, size_t msg_len,
|
|
const struct object_id *tree,
|
|
struct commit_list *parents, struct object_id *ret,
|
|
const char *author, const char *committer,
|
|
const char *sign_commit, struct commit_extra_header *);
|
|
|
|
struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
|
|
|
|
void free_commit_extra_headers(struct commit_extra_header *extra);
|
|
|
|
/*
|
|
* Search the commit object contents given by "msg" for the header "key".
|
|
* Reads up to "len" bytes of "msg".
|
|
* 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!
|
|
*/
|
|
const char *find_header_mem(const char *msg, size_t len,
|
|
const char *key,
|
|
size_t *out_len);
|
|
|
|
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. */
|
|
size_t ignore_non_trailer(const char *buf, size_t len);
|
|
|
|
typedef int (*each_mergetag_fn)(struct commit *commit, struct commit_extra_header *extra,
|
|
void *cb_data);
|
|
|
|
int 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 */
|
|
char name[FLEX_ARRAY];
|
|
};
|
|
struct merge_remote_desc *merge_remote_util(struct commit *);
|
|
void set_merge_remote_desc(struct commit *commit,
|
|
const char *name, struct object *obj);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
int parse_signed_commit(const struct commit *commit,
|
|
struct strbuf *message, struct strbuf *signature,
|
|
const struct git_hash_algo *algop);
|
|
int remove_signature(struct strbuf *buf);
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
int check_commit_signature(const struct commit *commit, struct signature_check *sigc);
|
|
|
|
/* record author-date for each commit object */
|
|
struct author_date_slab;
|
|
void record_author_date(struct author_date_slab *author_date,
|
|
struct commit *commit);
|
|
|
|
int compare_commits_by_author_date(const void *a_, const void *b_, void *unused);
|
|
|
|
/*
|
|
* Verify a single commit with check_commit_signature() and die() if it is not
|
|
* a good signature. This isn't really suitable for general use, but is a
|
|
* helper to implement consistent logic for pull/merge --verify-signatures.
|
|
*
|
|
* The check_trust parameter is meant for backward-compatibility. The GPG
|
|
* interface verifies key trust with a default trust level that is below the
|
|
* default trust level for merge operations. Its value should be non-zero if
|
|
* the user hasn't set a minimum trust level explicitly in their configuration.
|
|
*
|
|
* If the user has set a minimum trust level, then that value should be obeyed
|
|
* and check_trust should be zero, even if the configured trust level is below
|
|
* the default trust level for merges.
|
|
*/
|
|
void verify_merge_signature(struct commit *commit, int verbose,
|
|
int check_trust);
|
|
|
|
int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
|
|
int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void *unused);
|
|
|
|
LAST_ARG_MUST_BE_NULL
|
|
int run_commit_hook(int editor_is_used, const char *index_file,
|
|
int *invoked_hook, const char *name, ...);
|
|
|
|
/* Sign a commit or tag buffer, storing the result in a header. */
|
|
int sign_with_header(struct strbuf *buf, const char *keyid);
|
|
/* Parse the signature out of a header. */
|
|
int parse_buffer_signed_by_header(const char *buffer,
|
|
unsigned long size,
|
|
struct strbuf *payload,
|
|
struct strbuf *signature,
|
|
const struct git_hash_algo *algop);
|
|
int add_header_signature(struct strbuf *buf, struct strbuf *sig, const struct git_hash_algo *algo);
|
|
|
|
#endif /* COMMIT_H */
|