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/*

* Copyright (C) the libgit2 contributors. All rights reserved.

*

* This file is part of libgit2, distributed under the GNU GPL v2 with

* a Linking Exception. For full terms see the included COPYING file.

*/

#include "annotated_commit.h"

#include "refs.h"

#include "cache.h"

#include "git2/commit.h"

#include "git2/refs.h"

#include "git2/repository.h"

#include "git2/annotated_commit.h"

#include "git2/revparse.h"

#include "git2/tree.h"

#include "git2/index.h"

static int annotated_commit_init(

git_annotated_commit **out,

git_commit *commit,

const char *description)

{

git_annotated_commit *annotated_commit;

int error = 0;

assert(out && commit);

*out = NULL;

annotated_commit = git__calloc(1, sizeof(git_annotated_commit));

GITERR_CHECK_ALLOC(annotated_commit);

annotated_commit->type = GIT_ANNOTATED_COMMIT_REAL;

if ((error = git_commit_dup(&annotated_commit->commit, commit)) < 0)

goto done;

git_oid_fmt(annotated_commit->id_str, git_commit_id(commit));

annotated_commit->id_str[GIT_OID_HEXSZ] = '\0';

if (!description)

description = annotated_commit->id_str;

annotated_commit->description = git__strdup(description);

GITERR_CHECK_ALLOC(annotated_commit->description);

done:

if (!error)

*out = annotated_commit;

return error;

}

static int annotated_commit_init_from_id(

git_annotated_commit **out,

git_repository *repo,

const git_oid *id,

const char *description)

{

git_commit *commit = NULL;

int error = 0;

assert(out && repo && id);

*out = NULL;

if ((error = git_commit_lookup(&commit, repo, id)) < 0)

goto done;

error = annotated_commit_init(out, commit, description);

done:

git_commit_free(commit);

return error;

}

int git_annotated_commit_lookup(

git_annotated_commit **out,

git_repository *repo,

const git_oid *id)

{

return annotated_commit_init_from_id(out, repo, id, NULL);

}

int git_annotated_commit_from_commit(

git_annotated_commit **out,

git_commit *commit)

{

return annotated_commit_init(out, commit, NULL);

}

int git_annotated_commit_from_revspec(

git_annotated_commit **out,

git_repository *repo,

const char *revspec)

{

git_object *obj, *commit;

int error;

assert(out && repo && revspec);

if ((error = git_revparse_single(&obj, repo, revspec)) < 0)

return error;

if ((error = git_object_peel(&commit, obj, GIT_OBJ_COMMIT))) {

git_object_free(obj);

return error;

}

error = annotated_commit_init(out, (git_commit *)commit, revspec);

git_object_free(obj);

git_object_free(commit);

return error;

}

int git_annotated_commit_from_ref(

git_annotated_commit **out,

git_repository *repo,

const git_reference *ref)

{

git_reference *resolved;

int error = 0;

assert(out && repo && ref);

*out = NULL;

if ((error = git_reference_resolve(&resolved, ref)) < 0)

return error;

error = annotated_commit_init_from_id(out,

repo,

git_reference_target(resolved),

git_reference_name(ref));

if (!error) {

(*out)->ref_name = git__strdup(git_reference_name(ref));

GITERR_CHECK_ALLOC((*out)->ref_name);

}

git_reference_free(resolved);

return error;

}

int git_annotated_commit_from_head(

git_annotated_commit **out,

git_repository *repo)

{

git_reference *head;

int error;

assert(out && repo);

*out = NULL;

if ((error = git_reference_lookup(&head, repo, GIT_HEAD_FILE)) < 0)

return -1;

error = git_annotated_commit_from_ref(out, repo, head);

git_reference_free(head);

return error;

}

int git_annotated_commit_from_fetchhead(

git_annotated_commit **out,

git_repository *repo,

const char *branch_name,

const char *remote_url,

const git_oid *id)

{

assert(repo && id && branch_name && remote_url);

if (annotated_commit_init_from_id(out, repo, id, branch_name) < 0)

return -1;

(*out)->ref_name = git__strdup(branch_name);

GITERR_CHECK_ALLOC((*out)->ref_name);

(*out)->remote_url = git__strdup(remote_url);

GITERR_CHECK_ALLOC((*out)->remote_url);

return 0;

}

const git_oid *git_annotated_commit_id(

const git_annotated_commit *annotated_commit)

{

assert(annotated_commit);

return git_commit_id(annotated_commit->commit);

}

void git_annotated_commit_free(git_annotated_commit *annotated_commit)

{

if (annotated_commit == NULL)

return;

switch (annotated_commit->type) {

case GIT_ANNOTATED_COMMIT_REAL:

git_commit_free(annotated_commit->commit);

git_tree_free(annotated_commit->tree);

git__free((char *)annotated_commit->description);

git__free((char *)annotated_commit->ref_name);

git__free((char *)annotated_commit->remote_url);

break;

case GIT_ANNOTATED_COMMIT_VIRTUAL:

git_index_free(annotated_commit->index);

git_array_clear(annotated_commit->parents);

break;

default:

abort();

}

git__free(annotated_commit);

}