git/commit.h at master · fatpat/git · GitHub

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#ifndefCOMMIT_H
#defineCOMMIT_H

#include"object.h"
#include"tree.h"
#include"strbuf.h"
#include"decorate.h"

structcommit_list {
structcommit*item;
structcommit_list*next;
};

structcommit {
structobjectobject;
void*util;
unsigned intindegree;
unsigned longdate;
structcommit_list*parents;
structtree*tree;
char*buffer;
};

externintsave_commit_buffer;
externconstchar*commit_type;

/* While we can decorate any object with a name, it's only used for commits.. */
externstructdecorationname_decoration;
structname_decoration {
structname_decoration*next;
inttype;
charname[1];
};

structcommit*lookup_commit(constunsigned char*sha1);
structcommit*lookup_commit_reference(constunsigned char*sha1);
structcommit*lookup_commit_reference_gently(constunsigned char*sha1,
intquiet);
structcommit*lookup_commit_reference_by_name(constchar*name);

/*
 * 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.
 */
structcommit*lookup_commit_or_die(constunsigned char*sha1, constchar*ref_name);

intparse_commit_buffer(structcommit*item, constvoid*buffer, unsigned longsize);
intparse_commit(structcommit*item);

/* Find beginning and length of commit subject. */
intfind_commit_subject(constchar*commit_buffer, constchar**subject);

structcommit_list*commit_list_insert(structcommit*item,
structcommit_list**list);
structcommit_list**commit_list_append(structcommit*commit,
structcommit_list**next);
unsignedcommit_list_count(conststructcommit_list*l);
structcommit_list*commit_list_insert_by_date(structcommit*item,
structcommit_list**list);
voidcommit_list_sort_by_date(structcommit_list**list);

voidfree_commit_list(structcommit_list*list);

/* Commit formats */
enumcmit_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
};

structpretty_print_context {
enumcmit_fmtfmt;
intabbrev;
constchar*subject;
constchar*after_subject;
intpreserve_subject;
enumdate_modedate_mode;
unsigneddate_mode_explicit:1;
intneed_8bit_cte;
intshow_notes;
structreflog_walk_info*reflog_info;
constchar*output_encoding;
};

structuserformat_want {
unsignednotes:1;
};

externinthas_non_ascii(constchar*text);
structrev_info; /* in revision.h, it circularly uses enum cmit_fmt */
externchar*logmsg_reencode(conststructcommit*commit,
constchar*output_encoding);
externchar*reencode_commit_message(conststructcommit*commit,
constchar**encoding_p);
externvoidget_commit_format(constchar*arg, structrev_info*);
externconstchar*format_subject(structstrbuf*sb, constchar*msg,
constchar*line_separator);
externvoiduserformat_find_requirements(constchar*fmt, structuserformat_want*w);
externvoidformat_commit_message(conststructcommit*commit,
constchar*format, structstrbuf*sb,
conststructpretty_print_context*context);
externvoidpretty_print_commit(conststructpretty_print_context*pp,
conststructcommit*commit,
structstrbuf*sb);
externvoidpp_commit_easy(enumcmit_fmtfmt, conststructcommit*commit,
structstrbuf*sb);
voidpp_user_info(conststructpretty_print_context*pp,
constchar*what, structstrbuf*sb,
constchar*line, constchar*encoding);
voidpp_title_line(conststructpretty_print_context*pp,
constchar**msg_p,
structstrbuf*sb,
constchar*encoding,
intneed_8bit_cte);
voidpp_remainder(conststructpretty_print_context*pp,
constchar**msg_p,
structstrbuf*sb,
intindent);


/** Removes the first commit from a list sorted by date, and adds all
 * of its parents.
 **/
structcommit*pop_most_recent_commit(structcommit_list**list,
unsigned intmark);

structcommit*pop_commit(structcommit_list**stack);

voidclear_commit_marks(structcommit*commit, unsigned intmark);
voidclear_commit_marks_for_object_array(structobject_array*a, unsignedmark);

/*
 * 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.
 */
voidsort_in_topological_order(structcommit_list**list, intlifo);

structcommit_graft {
unsigned charsha1[20];
intnr_parent; /* < 0 if shallow commit */
unsigned charparent[FLEX_ARRAY][20]; /* more */
};
typedefint (*each_commit_graft_fn)(conststructcommit_graft*, void*);

structcommit_graft*read_graft_line(char*buf, intlen);
intregister_commit_graft(structcommit_graft*, int);
structcommit_graft*lookup_commit_graft(constunsigned char*sha1);

externstructcommit_list*get_merge_bases(structcommit*rev1, structcommit*rev2, intcleanup);
externstructcommit_list*get_merge_bases_many(structcommit*one, intn, structcommit**twos, intcleanup);
externstructcommit_list*get_octopus_merge_bases(structcommit_list*in);

externintregister_shallow(constunsigned char*sha1);
externintunregister_shallow(constunsigned char*sha1);
externintfor_each_commit_graft(each_commit_graft_fn, void*);
externintis_repository_shallow(void);
externstructcommit_list*get_shallow_commits(structobject_array*heads,
intdepth, intshallow_flag, intnot_shallow_flag);

intis_descendant_of(structcommit*, structcommit_list*);
intin_merge_bases(structcommit*, structcommit**, int);

externintinteractive_add(intargc, constchar**argv, constchar*prefix, intpatch);
externintrun_add_interactive(constchar*revision, constchar*patch_mode,
constchar**pathspec);

staticinlineintsingle_parent(structcommit*commit)
{
returncommit->parents&& !commit->parents->next;
}

structcommit_list*reduce_heads(structcommit_list*heads);

structcommit_extra_header {
structcommit_extra_header*next;
char*key;
char*value;
size_tlen;
};

externvoidappend_merge_tag_headers(structcommit_list*parents,
structcommit_extra_header***tail);

externintcommit_tree(conststructstrbuf*msg, unsigned char*tree,
structcommit_list*parents, unsigned char*ret,
constchar*author, constchar*sign_commit);

externintcommit_tree_extended(conststructstrbuf*msg, unsigned char*tree,
structcommit_list*parents, unsigned char*ret,
constchar*author, constchar*sign_commit,
structcommit_extra_header*);

externstructcommit_extra_header*read_commit_extra_headers(structcommit*, constchar**);
externstructcommit_extra_header*read_commit_extra_header_lines(constchar*buf, size_tlen, constchar**);

externvoidfree_commit_extra_headers(structcommit_extra_header*extra);

structmerge_remote_desc {
structobject*obj; /* the named object, could be a tag */
constchar*name;
};
#definemerge_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.
 */
structcommit*get_merge_parent(constchar*name);

externintparse_signed_commit(constunsigned char*sha1,
structstrbuf*message, structstrbuf*signature);
#endif/* COMMIT_H */