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add git_commit_parent to retrieve a parent by index

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This commit is contained in:
Justin Love 2010-11-30 21:28:39 -06:00
parent 12114415ab
commit eb095435f3
3 changed files with 30 additions and 1 deletions
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14
src/commit.c
View File

@ -272,6 +272,20 @@ unsigned int git_commit_parentcount(git_commit *commit)
return count;
}
git_commit * git_commit_parent(git_commit *commit, unsigned int n)
{
git_commit_parents *parent;
assert(commit);
CHECK_FULL_PARSE();
for (parent = commit->parents; parent != NULL && n > 0; parent = parent->next) {
n--;
}
return parent ? parent->commit : NULL;
}
void git_commit_set_tree(git_commit *commit, git_tree *tree)
{
assert(commit && tree);

8
src/git/commit.h
View File

@ -101,6 +101,14 @@ GIT_EXTERN(const git_tree *) git_commit_tree(git_commit *commit);
*/
GIT_EXTERN(unsigned int) git_commit_parentcount(git_commit *commit);
/**
* Get the specified parent of the commit.
* @param commit a previously loaded commit.
* @param n the position of the entry
* @return a pointer to the commit; NULL if out of bounds
*/
GIT_EXTERN(git_commit *) git_commit_parent(git_commit *commit, unsigned int n);
/**
* Add a new parent commit to an existing commit
* @param commit the commit object

9
tests/t0402-details.c
View File

@ -31,7 +31,8 @@ BEGIN_TEST(query_details_test)
const git_person *author, *committer;
const char *message, *message_short;
time_t commit_time;
unsigned int parents;
unsigned int parents, p;
git_commit *parent;
git_oid_mkstr(&id, commit_ids[i]);
@ -52,6 +53,12 @@ BEGIN_TEST(query_details_test)
must_be_true(strchr(message_short, '\n') == NULL);
must_be_true(commit_time > 0);
must_be_true(0 <= parents && parents <= 2);
for (p = 0;p < parents;p++) {
parent = git_commit_parent(commit, p);
must_be_true(parent != NULL);
must_be_true(git_commit_author(parent) != NULL); // is it really a commit?
}
must_be_true(git_commit_parent(commit, parents) == NULL);
}
git_repository_free(repo);