Some documentation improvements

include/git2/commit.h

@@ -24,17 +24,24 @@ GIT_BEGIN_DECL
 /**
  * Lookup a commit object from a repository.
  *
+ * The returned object should be released with `git_commit_free` when no
+ * longer needed.
+ *
  * @param commit pointer to the looked up commit
  * @param repo the repo to use when locating the commit.
  * @param id identity of the commit to locate. If the object is
  *		an annotated tag it will be peeled back to the commit.
  * @return 0 or an error code
  */
-GIT_EXTERN(int) git_commit_lookup(git_commit **commit, git_repository *repo, const git_oid *id);
+GIT_EXTERN(int) git_commit_lookup(
+	git_commit **commit, git_repository *repo, const git_oid *id);
 
 /**
- * Lookup a commit object from a repository,
- * given a prefix of its identifier (short id).
+ * Lookup a commit object from a repository, given a prefix of its
+ * identifier (short id).
+ *
+ * The returned object should be released with `git_commit_free` when no
+ * longer needed.
  *
  * @see git_object_lookup_prefix
  *
@@ -45,7 +52,8 @@ GIT_EXTERN(int) git_commit_lookup(git_commit **commit, git_repository *repo, con
  * @param len the length of the short identifier
  * @return 0 or an error code
  */
-GIT_EXTERN(int) git_commit_lookup_prefix(git_commit **commit, git_repository *repo, const git_oid *id, size_t len);
+GIT_EXTERN(int) git_commit_lookup_prefix(
+	git_commit **commit, git_repository *repo, const git_oid *id, size_t len);
 
 /**
  * Close an open commit

include/git2/revparse.h

@@ -10,7 +10,6 @@
 #include "common.h"
 #include "types.h"
 
-
 /**
  * @file git2/revparse.h
  * @brief Git revision parsing routines
@@ -21,27 +20,37 @@
 GIT_BEGIN_DECL
 
 /**
- * Find a single object, as specified by a revision string. See `man gitrevisions`,
- * or http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for
+ * Find a single object, as specified by a revision string.
+ *
+ * See `man gitrevisions`, or
+ * http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for
  * information on the syntax accepted.
  *
+ * The returned object should be released with `git_object_free` when no
+ * longer needed.
+ *
  * @param out pointer to output object
  * @param repo the repository to search in
  * @param spec the textual specification for an object
  * @return 0 on success, GIT_ENOTFOUND, GIT_EAMBIGUOUS, GIT_EINVALIDSPEC or an error code
  */
-GIT_EXTERN(int) git_revparse_single(git_object **out, git_repository *repo, const char *spec);
+GIT_EXTERN(int) git_revparse_single(
+	git_object **out, git_repository *repo, const char *spec);
 
 /**
- * Find a single object, as specified by a revision string.
- * See `man gitrevisions`,
- * or http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for
+ * Find a single object and intermediate reference by a revision string.
+ *
+ * See `man gitrevisions`, or
+ * http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for
  * information on the syntax accepted.
  *
  * In some cases (`@{<-n>}` or `<branchname>@{upstream}`), the expression may
  * point to an intermediate reference. When such expressions are being passed
  * in, `reference_out` will be valued as well.
  *
+ * The returned object should be released with `git_object_free` and the
+ * returned reference with `git_reference_free` when no longer needed.
+ *
  * @param object_out pointer to output object
  * @param reference_out pointer to output reference or NULL
  * @param repo the repository to search in
@@ -76,17 +85,19 @@ typedef struct {
 	git_object *from;
 	/** The right element of the revspec; must be freed by the user */
 	git_object *to;
-	/** The intent of the revspec */
+	/** The intent of the revspec (i.e. `git_revparse_mode_t` flags) */
 	unsigned int flags;
 } git_revspec;
 
 /**
- * Parse a revision string for `from`, `to`, and intent. See `man gitrevisions` or
- * http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for information
- * on the syntax accepted.
+ * Parse a revision string for `from`, `to`, and intent.
+ *
+ * See `man gitrevisions` or
+ * http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions for
+ * information on the syntax accepted.
  *
- * @param revspec Pointer to an user-allocated git_revspec struct where the result
- *	of the rev-parse will be stored
+ * @param revspec Pointer to an user-allocated git_revspec struct where
+ *	              the result of the rev-parse will be stored
  * @param repo the repository to search in
  * @param spec the rev-parse spec to parse
  * @return 0 on success, GIT_INVALIDSPEC, GIT_ENOTFOUND, GIT_EAMBIGUOUS or an error code