From 5a51dd322d438845617c2d43b6481e5c4bbe3bf8 Mon Sep 17 00:00:00 2001
From: Galin Simeonov <gts@volconst.com>
Date: Fri, 24 Sep 2021 21:13:13 +0300
Subject: learned how to iterate over commits

---
 .gitignore |  1 +
 makefile   |  4 ++--
 volgit.c   | 40 +++++++++++++++++++++++++++++++++++++++-
 3 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 9ab4708..153002f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.o
 volgit
+.gdb_history
diff --git a/makefile b/makefile
index 93ab295..3117c76 100644
--- a/makefile
+++ b/makefile
@@ -1,8 +1,8 @@
 volgit: volgit.o
-	c99 volgit.o -lgit2 -o volgit
+	c99 -g volgit.o -lgit2 -o volgit
 
 volgit.o: volgit.c
-	c99 -c volgit.c -o volgit.o
+	c99 -g -c volgit.c -o volgit.o
 
 clean:
 	rm -rf volgit.o volgit
diff --git a/volgit.c b/volgit.c
index 76ae0d7..f279e55 100644
--- a/volgit.c
+++ b/volgit.c
@@ -1,21 +1,59 @@
 #include <stdio.h>
 #include <git2.h>
 
+void print_commits(const git_reference *branch, git_repository *repo)
+{
+	const git_oid *id;
+	git_revwalk *walker;
+	git_oid current;
+
+	git_revwalk_new(&walker,repo);
+	id=git_reference_target(branch);
+	git_revwalk_push(walker,id);
+	
+	while(!git_revwalk_next(&current,walker))
+	{
+		printf("%s\n",git_oid_tostr_s(&current));
+	}
+
+
+}
 
 int main()
 {
+	const char *name;
+
 	git_branch_iterator *it;
 	git_repository *repo;
+	git_reference *ref;
+	git_branch_t branch_type=GIT_BRANCH_LOCAL;
 
 
+	git_libgit2_init();
 	git_repository_open(&repo,".");
-	git_branch_iterator_new(&it,repo,GIT_BRANCH_LOCAL);
+	git_branch_iterator_new(&it,repo,branch_type);
+
+
+	while(git_branch_next(&ref,&branch_type,it)==0)
+	{
+		git_branch_name(&name,ref);	
+		if(name)
+		{
+			printf("------- %s -------\n",name);
+			print_commits(ref,repo);	
+			printf("------------------\n");
+		}else
+		{
+			printf("NULL\n");
+		}
+	}
 
 
 
 
 	git_repository_free(repo);
 	git_branch_iterator_free(it);
+	git_libgit2_shutdown();
 
 	return 0;
 }
-- 
cgit v1.2.3