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revwalk: accept committish objects

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Let the user push committish objects and peel them to figure out which
commit to push to our queue.

This is for convenience and for allowing uses of

    git_revwalk_push_glob(w, "tags")

with annotated tags.
This commit is contained in:
Carlos Martín Nieto 2014-02-01 12:51:36 +01:00
parent 7369ea8075
commit f61272e047
2 changed files with 17 additions and 12 deletions
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8
include/git2/revwalk.h
View File

@ -87,7 +87,7 @@ GIT_EXTERN(void) git_revwalk_reset(git_revwalk *walker);
/** /**
* Mark a commit to start traversal from. * Mark a commit to start traversal from.
* *
* The given OID must belong to a commit on the walked * The given OID must belong to a committish on the walked
* repository. * repository.
* *
* The given commit will be used as one of the roots * The given commit will be used as one of the roots
@ -127,7 +127,7 @@ GIT_EXTERN(int) git_revwalk_push_head(git_revwalk *walk);
/** /**
* Mark a commit (and its ancestors) uninteresting for the output. * Mark a commit (and its ancestors) uninteresting for the output.
* *
* The given OID must belong to a commit on the walked * The given OID must belong to a committish on the walked
* repository. * repository.
* *
* The resolved commit and all its parents will be hidden from the * The resolved commit and all its parents will be hidden from the
@ -166,7 +166,7 @@ GIT_EXTERN(int) git_revwalk_hide_head(git_revwalk *walk);
/** /**
* Push the OID pointed to by a reference * Push the OID pointed to by a reference
* *
* The reference must point to a commit. * The reference must point to a committish.
* *
* @param walk the walker being used for the traversal * @param walk the walker being used for the traversal
* @param refname the reference to push * @param refname the reference to push
@ -177,7 +177,7 @@ GIT_EXTERN(int) git_revwalk_push_ref(git_revwalk *walk, const char *refname);
/** /**
* Hide the OID pointed to by a reference * Hide the OID pointed to by a reference
* *
* The reference must point to a commit. * The reference must point to a committish.
* *
* @param walk the walker being used for the traversal * @param walk the walker being used for the traversal
* @param refname the reference to hide * @param refname the reference to hide

21
src/revwalk.c
View File

@ -112,23 +112,28 @@ static int process_commit_parents(git_revwalk *walk, git_commit_list_node *commi
static int push_commit(git_revwalk *walk, const git_oid *oid, int uninteresting) static int push_commit(git_revwalk *walk, const git_oid *oid, int uninteresting)
{ {
git_oid commit_id;
int error; int error;
git_object *obj; git_object *obj, *oobj;
git_otype type;
git_commit_list_node *commit; git_commit_list_node *commit;
if ((error = git_object_lookup(&obj, walk->repo, oid, GIT_OBJ_ANY)) < 0) if ((error = git_object_lookup(&oobj, walk->repo, oid, GIT_OBJ_ANY)) < 0)
return error; return error;
type = git_object_type(obj); error = git_object_peel(&obj, oobj, GIT_OBJ_COMMIT);
git_object_free(obj); git_object_free(oobj);
if (type != GIT_OBJ_COMMIT) { if (error == GIT_ENOTFOUND) {
giterr_set(GITERR_INVALID, "Object is no commit object"); giterr_set(GITERR_INVALID, "Object is not a committish");
return -1; return -1;
} }
if (error < 0)
return error;
commit = git_revwalk__commit_lookup(walk, oid); git_oid_cpy(&commit_id, git_object_id(obj));
git_object_free(obj);
commit = git_revwalk__commit_lookup(walk, &commit_id);
if (commit == NULL) if (commit == NULL)
return -1; /* error already reported by failed lookup */ return -1; /* error already reported by failed lookup */