git2d: Initialize

1 files changed, 141 insertions, 0 deletions

diff --git a/git2d/main.c b/git2d/main.c
new file mode 100644
index 0000000..1cd0505
--- /dev/null
+++ b/git2d/main.c
@@ -0,0 +1,141 @@
+/*-
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+ */
+
+#include <err.h>
+#include <errno.h>
+#include <git2.h>
+#include <pthread.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void
+*
+session(void *_conn)
+{
+	int		conn = *(int *)_conn;
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+	int		ret = 0;
+#pragma GCC diagnostic pop
+
+	int		err;
+	git_repository *repo = NULL;
+
+	git_libgit2_init();
+
+	err = git_repository_open_ext(&repo, "/home/runxiyu/Lindenii/forge/test.git", GIT_REPOSITORY_OPEN_NO_SEARCH | GIT_REPOSITORY_OPEN_BARE | GIT_REPOSITORY_OPEN_NO_DOTGIT, NULL);
+	if (err != 0) {
+		ret = 1;
+		goto free_libgit2;
+	}
+
+	git_object     *obj = NULL;
+	err = git_revparse_single(&obj, repo, "HEAD^{tree}");
+	if (err != 0) {
+		ret = 2;
+		goto free_repo;
+	}
+	git_tree       *tree = (git_tree *) obj;
+
+	git_tree_entry *entry = NULL;
+	err = git_tree_entry_bypath(&entry, tree, "README.md");
+	if (err != 0) {
+		ret = 3;
+		goto free_tree;
+	}
+
+	git_otype	objtype = git_tree_entry_type(entry);
+	if (objtype != GIT_OBJECT_BLOB) {
+		ret = 4;
+		goto free_tree_entry;
+	}
+
+	git_object     *obj2 = NULL;
+	err = git_tree_entry_to_object(&obj2, repo, entry);
+	if (err != 0) {
+		ret = 5;
+		goto free_tree_entry;
+	}
+
+	git_blob       *blob = (git_blob *) obj2;
+	const void     *content = git_blob_rawcontent(blob);
+	if (content == NULL) {
+		ret = 6;
+		goto free_blob;
+	}
+	write(conn, content, git_blob_rawsize(blob));
+
+free_blob:
+	git_blob_free(blob);
+free_tree_entry:
+	git_tree_entry_free(entry);
+free_tree:
+	git_tree_free(tree);
+free_repo:
+	git_repository_free(repo);
+free_libgit2:
+	git_libgit2_shutdown();
+
+close:
+	close(conn);
+	free((int *)_conn);
+
+	/* TODO: Handle ret */
+
+	return NULL;
+
+	/* TODO: Actually use it properly */
+	if (0)
+		goto close;
+}
+
+int
+main(void)
+{
+	int		sock;
+	if ((sock = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)) < 0)
+		err(1, "socket");
+
+	struct sockaddr_un addr;
+	memset(&addr, 0, sizeof(addr));
+	addr.sun_family = AF_UNIX;
+	strcpy(addr.sun_path, "/home/runxiyu/Lindenii/forge/git2d.sock");
+
+	if (bind(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_un))) {
+		if (errno == EADDRINUSE) {
+			unlink("/home/runxiyu/Lindenii/forge/git2d.sock");
+			if (bind(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)))
+				err(1, "bind");
+		} else {
+			err(1, "bind");
+		}
+	}
+
+	listen(sock, 0);
+
+	for (;;) {
+		int		*conn = malloc(sizeof(int));
+		if (conn == NULL)
+			err(1, "malloc");
+
+		*conn = accept(sock, 0, 0);
+		if (*conn == -1)
+			err(1, "accept");
+
+		puts("got");
+
+		pthread_t	thread;
+
+		pthread_create(&thread, NULL, session, (void *)conn);
+	}
+
+	close(sock);
+}