#include "tree.h"
#include "strbuf.h"
#include "decorate.h"
+#include "gpg-interface.h"
+#include "string-list.h"
+#include "pretty.h"
+#include "commit-slab.h"
+
+#define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF
+#define GENERATION_NUMBER_INFINITY 0xFFFFFFFF
+#define GENERATION_NUMBER_MAX 0x3FFFFFFF
+#define GENERATION_NUMBER_ZERO 0
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;
- void *util;
- unsigned int indegree;
- unsigned long date;
+ timestamp_t date;
struct commit_list *parents;
- struct tree *tree;
- char *buffer;
+
+ /*
+ * 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;
+ uint32_t graph_pos;
+ uint32_t generation;
+ unsigned int index;
};
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;
int type;
- char name[1];
+ 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,
};
-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,
+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(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 "sha1", dereference tag as necessary,
- * get a commit and return it. If "sha1" does not dereference to
+ * 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 unsigned char *sha1, const char *ref_name);
+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);
+}
-int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size);
-int parse_commit(struct commit *item);
+static inline int parse_commit_no_graph(struct commit *commit)
+{
+ return repo_parse_commit_internal(the_repository, commit, 0, 0);
+}
+
+#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
+#define parse_commit_internal(item, quiet, use) repo_parse_commit_internal(the_repository, item, quiet, use)
+#define parse_commit_gently(item, quiet) repo_parse_commit_gently(the_repository, item, quiet)
+#define parse_commit(item) repo_parse_commit(the_repository, item)
+#endif
+
+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 unuse_commit_buffer when the caller is done.
+ */
+const void *repo_get_commit_buffer(struct repository *r,
+ const struct commit *,
+ unsigned long *size);
+#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
+#define get_commit_buffer(c, s) repo_get_commit_buffer(the_repository, c, s)
+#endif
+
+/*
+ * 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 repo_unuse_commit_buffer(struct repository *r,
+ const struct commit *,
+ const void *buffer);
+#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
+#define unuse_commit_buffer(c, b) repo_unuse_commit_buffer(the_repository, c, b)
+#endif
+
+/*
+ * 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 *);
+#define get_commit_tree(c) repo_get_commit_tree(the_repository, c)
+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);
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 *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);
-
-/* Commit formats */
-enum cmit_fmt {
- CMIT_FMT_RAW,
- CMIT_FMT_MEDIUM,
- CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
- CMIT_FMT_SHORT,
- CMIT_FMT_FULL,
- CMIT_FMT_FULLER,
- CMIT_FMT_ONELINE,
- CMIT_FMT_EMAIL,
- CMIT_FMT_USERFORMAT,
-
- CMIT_FMT_UNSPECIFIED
-};
+/* Shallow copy of the input list */
+struct commit_list *copy_commit_list(struct commit_list *list);
-struct pretty_print_context {
- 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;
- int show_notes;
- struct reflog_walk_info *reflog_info;
- const char *output_encoding;
-};
-
-struct userformat_want {
- unsigned notes:1;
-};
+void free_commit_list(struct commit_list *list);
-extern int has_non_ascii(const char *text);
struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
-extern char *logmsg_reencode(const struct commit *commit,
- const char *output_encoding);
-extern char *reencode_commit_message(const struct commit *commit,
- const char **encoding_p);
-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 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(const 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(const struct pretty_print_context *pp,
- const char *what, struct strbuf *sb,
- const char *line, const char *encoding);
-void pp_title_line(const struct pretty_print_context *pp,
- const char **msg_p,
- struct strbuf *sb,
- const char *encoding,
- int need_8bit_cte);
-void pp_remainder(const struct pretty_print_context *pp,
- const char **msg_p,
- struct strbuf *sb,
- int indent);
+int has_non_ascii(const char *text);
+const char *logmsg_reencode(const struct commit *commit,
+ char **commit_encoding,
+ const char *output_encoding);
+const char *repo_logmsg_reencode(struct repository *r,
+ const struct commit *commit,
+ char **commit_encoding,
+ const char *output_encoding);
+#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
+#define logmsg_reencode(c, enc, out) repo_logmsg_reencode(the_repository, c, enc, out)
+#endif
+
+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_commit(struct commit_list **stack);
void clear_commit_marks(struct commit *commit, unsigned int mark);
-void clear_commit_marks_for_object_array(struct object_array *a, unsigned 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)
- * 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];
+ struct object_id oid;
int nr_parent; /* < 0 if shallow commit */
- unsigned char parent[FLEX_ARRAY][20]; /* more */
+ struct object_id parent[FLEX_ARRAY]; /* 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);
+struct commit_graft *read_graft_line(struct strbuf *line);
+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);
+
+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 register_shallow(struct repository *r, const struct object_id *oid);
+int unregister_shallow(const struct object_id *oid);
+int for_each_commit_graft(each_commit_graft_fn, void *);
+int is_repository_shallow(struct repository *r);
+struct commit_list *get_shallow_commits(struct object_array *heads,
+ int depth, int shallow_flag, int not_shallow_flag);
+struct commit_list *get_shallow_commits_by_rev_list(
+ int ac, const char **av, int shallow_flag, int not_shallow_flag);
+void set_alternate_shallow_file(struct repository *r, const char *path, int override);
+int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
+ const struct oid_array *extra);
+void setup_alternate_shallow(struct lock_file *shallow_lock,
+ const char **alternate_shallow_file,
+ const struct oid_array *extra);
+const char *setup_temporary_shallow(const struct oid_array *extra);
+void advertise_shallow_grafts(int);
-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_octopus_merge_bases(struct commit_list *in);
-
-extern int register_shallow(const unsigned char *sha1);
-extern int unregister_shallow(const unsigned char *sha1);
-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);
-
-int is_descendant_of(struct commit *, struct commit_list *);
-int in_merge_bases(struct commit *, struct commit **, int);
-
-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);
-
-static inline int single_parent(struct commit *commit)
-{
- return commit->parents && !commit->parents->next;
-}
+/*
+ * Initialize with prepare_shallow_info() or zero-initialize (equivalent to
+ * prepare_shallow_info with a NULL oid_array).
+ */
+struct shallow_info {
+ struct oid_array *shallow;
+ int *ours, nr_ours;
+ int *theirs, nr_theirs;
+ struct oid_array *ref;
+
+ /* for receive-pack */
+ uint32_t **used_shallow;
+ int *need_reachability_test;
+ int *reachable;
+ int *shallow_ref;
+ struct commit **commits;
+ int nr_commits;
+};
-struct commit_list *reduce_heads(struct commit_list *heads);
+void prepare_shallow_info(struct shallow_info *, struct oid_array *);
+void clear_shallow_info(struct shallow_info *);
+void remove_nonexistent_theirs_shallow(struct shallow_info *);
+void assign_shallow_commits_to_refs(struct shallow_info *info,
+ uint32_t **used,
+ int *ref_status);
+int delayed_reachability_test(struct shallow_info *si, int c);
+#define PRUNE_SHOW_ONLY 1
+#define PRUNE_QUICK 2
+void prune_shallow(unsigned options);
+extern struct trace_key trace_shallow;
+
+int interactive_add(int argc, const char **argv, const char *prefix, int patch);
+int run_add_interactive(const char *revision, const char *patch_mode,
+ const struct pathspec *pathspec);
struct commit_extra_header {
struct commit_extra_header *next;
size_t len;
};
-extern void append_merge_tag_headers(struct commit_list *parents,
- struct commit_extra_header ***tail);
+void append_merge_tag_headers(struct commit_list *parents,
+ struct commit_extra_header ***tail);
-extern int commit_tree(const struct strbuf *msg, unsigned char *tree,
- struct commit_list *parents, unsigned char *ret,
- const char *author, const char *sign_commit);
+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);
-extern int commit_tree_extended(const struct strbuf *msg, unsigned char *tree,
- struct commit_list *parents, unsigned char *ret,
- const char *author, const char *sign_commit,
- struct commit_extra_header *);
+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 *sign_commit,
+ struct commit_extra_header *);
-extern struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
-extern struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
+struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
-extern void free_commit_extra_headers(struct commit_extra_header *extra);
+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!
+ */
+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 */
- const char *name;
+ char name[FLEX_ARRAY];
};
-#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util))
+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
*/
struct commit *get_merge_parent(const char *name);
-extern int parse_signed_commit(const unsigned char *sha1,
- struct strbuf *message, struct strbuf *signature);
+int parse_signed_commit(const struct commit *commit,
+ struct strbuf *message, struct strbuf *signature);
+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.
+ */
+void verify_merge_signature(struct commit *commit, int verbose);
+
+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, const char *name, ...);
+
#endif /* COMMIT_H */
projects / platform / upstream / git.git / blobdiff