commit - 2e902c173274c2ce4c24c93773efd6c5ac6396f9
commit + 87c837a85a87442f1c759746e0df51df3ee3d9e4
blob - 3896c253eb5f72146232f05b5c8cde92fee08342
blob + 35888606d0e7e1a2d71dc62839988b2cad8afce8
--- libgit-notes.c
+++ libgit-notes.c
@@ -1,5 +1,6 @@
 #include <git2.h>
 #include <stdio.h>
+#include <assert.h>
 
 #define GIT_REPO "."
 #define DEFAULT_NOTES_REF "refs/notes/commits"
@@ -7,118 +8,112 @@
 /**
  * gcc notes.c -o notes -L/usr/local/lib -lgit2 -I/usr/local/include
  * https://github.com/libgit2/libgit2/tree/master/tests/notes
+ * https://git-scm.com/docs/git-notes
+ *
+ * git init
+ * git notes add [<object>]
+ * git notes get-ref
  */
 
-static int note_list_cb(
-	const git_oid *blob_id, const git_oid *annotated_obj_id, void *payload)
+git_repository* open_repository(const char *path) {
+  git_repository *repo = NULL;
+  if (!(git_repository_open_ext(&repo, path, GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) == 0)) {
+    return NULL;
+  }
+  printf("%s is a GIT repository\n", path);
+  int error = git_repository_open(&repo, path);
+  if (error < 0) {
+    const git_error *e = giterr_last();
+    printf("Error %d/%d: %s\n", error, e->klass, e->message);
+    exit(error);
+  }
+
+  return repo;
+}
+
+void print_notes() {
+  git_repository *r = open_repository(GIT_REPO);
+  printf("print notes\n");
+  git_oid *annotated_id = NULL, *note_id = NULL;
+  git_note_iterator *note_iter = NULL;
+  int error = git_note_iterator_new(&note_iter, r, "refs/notes/commits");
+  git_note_next(note_id, annotated_id, note_iter);
+  git_note_iterator_free(note_iter);
+  git_repository_free(r);
+}
+
+void print_default_note_ref() {
+  git_repository *r = open_repository(GIT_REPO);
+  printf("print default note ref\n");
+  git_buf *out;
+  git_note_default_ref(out, r);
+  printf("def note reference %s\n", out);
+  git_repository_free(r);
+}
+
+void print_references() {
+  printf("print references\n");
+  git_repository *r = open_repository(GIT_REPO);
+  int error = 0;
+  git_reference_iterator *ref_iter = NULL;
+  error = git_reference_iterator_new(&ref_iter, r);
+  git_reference *ref = NULL;
+  const char *str = NULL;
+  while (!(error = git_reference_next(&ref, ref_iter))) {
+    error = git_reference_lookup(&ref, r, "refs/heads/master");
+    str = git_reference_name(ref);
+    printf("ref %s\n", str);
+  }
+  if (error != GIT_ITEROVER) {
+    printf("not a GIT_ITEROVER\n");
+  }
+  git_repository_free(r);
+}
+
+static int show_note_cb(const git_oid *blob_id, const git_oid *annotated_obj_id, void *payload)
 {
-	printf("note_list_cb\n");
-	git_repository *repo = (git_repository*)payload;
-	git_note *git_note;
-	int rc = 0;
-	const char *note_msg;
-	rc = git_note_read(&git_note, repo, DEFAULT_NOTES_REF, blob_id);
-	if (rc != 0) {
-		const git_error *e = giterr_last();
-		printf("Error %d/%d: %s\n", rc, e->klass, e->message);
-		exit(rc);
-	}
-	note_msg = git_note_message(git_note);
-	printf("%s\n", note_msg);
-	/*
-	const git_signature *signature = NULL;
-	signature = git_note_author(git_note);
-	if (signature != NULL) {
-		printf("author %s\n", signature->name);
-	}
-	*/
+  /*
+  char buf[40];
+  git_oid_fmt(buf, annotated_obj_id);
+  buf[40] = '\0';
+  printf("%s\n", buf);
+  git_oid_fmt(buf, annotated_obj_id);
+  printf("%s\n", buf);
+  */
 
-	return 0;
+  git_repository *repo = (git_repository*)payload;
+  git_note *git_note;
+  int rc = git_note_read(&git_note, repo, DEFAULT_NOTES_REF, annotated_obj_id);
+  if (rc != 0) {
+    const git_error *e = giterr_last();
+    printf("Error %d/%d: %s\n", rc, e->klass, e->message);
+    return -1;
+  }
+  const char *note_msg = git_note_message(git_note);
+  printf("Message: %s\n", note_msg);
+  const git_signature *signature = NULL;
+  signature = git_note_author(git_note);
+  if (signature) {
+    printf("Author: %s\n", signature->name);
+  }
+  return 0;
 }
 
 struct payload {
-	git_repository *repo;
-	const char *notes_ref;
+  git_repository *repo;
+  const char *notes_ref;
 };
 
 int main (int argc, char** argv)
 {
-	if (!(git_repository_open_ext(
-        NULL, GIT_REPO, GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) == 0)) {
-        exit(-1);
-	}
-	printf("%s is a GIT repository\n", GIT_REPO);
-	git_libgit2_init();
-	git_repository *repo = NULL;
-	int rc = 0;
-	rc = git_repository_open(&repo, GIT_REPO);
-	if (rc < 0) {
-		const git_error *e = giterr_last();
-		printf("Error %d/%d: %s\n", rc, e->klass, e->message);
-		exit(rc);
-	}
+  git_libgit2_init();
+  /* examples */
+  print_references();
+  git_repository *r = open_repository(GIT_REPO);
+  git_note_foreach(r, DEFAULT_NOTES_REF, show_note_cb, r);
+  git_repository_free(r);
+  //print_default_note_ref();	// FIXME
+  //print_notes();		// FIXME
 
-	git_oid *annotated_id, *note_id;
-
-/*
-	git_note_iterator *iter;
-	rc = git_note_iterator_new(&iter, repo, NULL);
-	// rc = git_note_iterator_new(&iter, repo, "refs/notes/commits");
-	if (rc < 0) {
-		const git_error *e = giterr_last();
-		printf("Error git_note_iterator_new() %d/%d: %s\n", rc, e->klass, e->message);
-		exit(rc);
-	}
-	printf("iterator\n");
-	rc = 0;
-	while(rc != GIT_ITEROVER) {
-		rc = git_note_next(note_id, annotated_id, iter);
-		if (rc == GIT_ITEROVER) {
-			break;
-		}
-		if (rc < 0) {
-			const git_error *e = giterr_last();
-			printf("Error git_note_next() %d/%d: %s\n", rc, e->klass, e->message);
-			continue;
-		}
-		printf("XXX\n");
-		const char *note_msg;
-		git_note *git_note;
-		git_note_read(&git_note, repo, "refs/notes/commits", note_id);
-		note_msg = git_note_message(git_note);
-		printf("%s\n", note_msg);
-	}
-	git_note_iterator_free(iter);
-*/
-
-	/*
-	git_note_iterator *iter;
-	git_note *note;
-	git_commit *notes_commit;
-	const char* note_message;
-	int i, err;
-
-	git_note_commit_iterator_new(&iter, notes_commit);
-	for (i = 0; (err = git_note_next(note_id, annotated_id, iter)) >= 0; ++i) {
-		git_note_commit_read(&note, repo, notes_commit, annotated_id);
-		note_message = git_note_message(note);
-		git_note_free(note);
-	}
-	git_note_iterator_free(iter);
-	git_commit_free(notes_commit);
-	*/
-
-	/*
-	git_buf *notes_ref;
-	rc = git_note_default_ref(notes_ref, repo);
-	if (rc != 0) {
-		const git_error *e = giterr_last();
-		printf("Error git_note_next() %d/%d: %s\n", rc, e->klass, e->message);
-		exit(rc);
-	}
-	printf("%s\n", (const char*)notes_ref);
-	*/
-
-	git_note_foreach(repo, DEFAULT_NOTES_REF, note_list_cb, repo);
-	git_libgit2_shutdown();
+  git_libgit2_shutdown();
 }