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119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
#ifndef COMMIT_H
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#define COMMIT_H
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#include "object.h"
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#include "tree.h"
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struct commit_list {
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struct commit *item;
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struct commit_list *next;
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};
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struct commit {
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struct object object;
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void *util;
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unsigned long date;
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struct commit_list *parents;
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struct tree *tree;
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char *buffer;
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};
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extern int save_commit_buffer;
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extern const char *commit_type;
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struct commit *lookup_commit(const unsigned char *sha1);
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struct commit *lookup_commit_reference(const unsigned char *sha1);
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struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
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int quiet);
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int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
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int parse_commit(struct commit *item);
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struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
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struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
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void free_commit_list(struct commit_list *list);
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void sort_by_date(struct commit_list **list);
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/* Commit formats */
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enum cmit_fmt {
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CMIT_FMT_RAW,
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CMIT_FMT_MEDIUM,
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CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
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CMIT_FMT_SHORT,
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CMIT_FMT_FULL,
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CMIT_FMT_FULLER,
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CMIT_FMT_ONELINE,
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CMIT_FMT_EMAIL,
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CMIT_FMT_UNSPECIFIED,
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};
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extern enum cmit_fmt get_commit_format(const char *arg);
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extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
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/** Removes the first commit from a list sorted by date, and adds all
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* of its parents.
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**/
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struct commit *pop_most_recent_commit(struct commit_list **list,
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unsigned int mark);
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struct commit *pop_commit(struct commit_list **stack);
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void clear_commit_marks(struct commit *commit, unsigned int mark);
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int count_parents(struct commit * commit);
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/*
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* Performs an in-place topological sort of list supplied.
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*
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* Pre-conditions for sort_in_topological_order:
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* all commits in input list and all parents of those
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* commits must have object.util == NULL
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*
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* Pre-conditions for sort_in_topological_order_fn:
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* all commits in input list and all parents of those
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* commits must have getter(commit) == NULL
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*
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* Post-conditions:
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* invariant of resulting list is:
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* a reachable from b => ord(b) < ord(a)
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* in addition, when lifo == 0, commits on parallel tracks are
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* sorted in the dates order.
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*/
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typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
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typedef void* (*topo_sort_get_fn_t)(struct commit*);
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void topo_sort_default_setter(struct commit *c, void *data);
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void *topo_sort_default_getter(struct commit *c);
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void sort_in_topological_order(struct commit_list ** list, int lifo);
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void sort_in_topological_order_fn(struct commit_list ** list, int lifo,
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topo_sort_set_fn_t setter,
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topo_sort_get_fn_t getter);
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struct commit_graft {
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unsigned char sha1[20];
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int nr_parent; /* < 0 if shallow commit */
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unsigned char parent[FLEX_ARRAY][20]; /* more */
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};
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struct commit_graft *read_graft_line(char *buf, int len);
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int register_commit_graft(struct commit_graft *, int);
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int read_graft_file(const char *graft_file);
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extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
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extern int register_shallow(const unsigned char *sha1);
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extern int unregister_shallow(const unsigned char *sha1);
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extern int write_shallow_commits(int fd, int use_pack_protocol);
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extern int is_repository_shallow(void);
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extern struct commit_list *get_shallow_commits(struct object_array *heads,
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int depth, int shallow_flag, int not_shallow_flag);
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int in_merge_bases(struct commit *, struct commit **, int);
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#endif /* COMMIT_H */
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