From 6c244ade251499eea92be4dff8bd3793bcc27817 Mon Sep 17 00:00:00 2001
From: mrb0nk500 <b0nk@b0nk.xyz>
Date: Sun, 13 Jun 2021 15:45:12 -0400
Subject: Finished the git initialization code.

---
 git.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 103 insertions(+), 3 deletions(-)

(limited to 'git.c')

diff --git a/git.c b/git.c
index 61ab0c0..fbeb0e9 100644
--- a/git.c
+++ b/git.c
@@ -1,7 +1,7 @@
+#include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <git2.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -10,13 +10,113 @@
 #include <syslog.h>
 #include <unistd.h>
 #include "config.h"
+#include "git.h"
 #include "macros.h"
 
 
+git_repo *add_repo(git_repository *repo, git_repo **first, git_repo **last) {
+	git_repo *new_repo = calloc(1, sizeof(git_repo));
+	(*last != NULL) ? ((*last)->next = new_repo) : (*first = new_repo);
+
+	new_repo->repo = repo;
+
+	*last = new_repo;
+
+	return new_repo;
+}
+
+int find_ignore_file(const char *path) {
+	DIR *root = opendir(path);
+	struct dirent entry, *result;
+
+	while (readdir_r(root, &entry, &result) == 0 && result != NULL) {
+		/* Is this entry a regular file, and is it the ignore file? */
+		if (entry.d_type == DT_REG && strcasecmp(entry.d_name, "pullreqd-ignore") == 0) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+void cleanup_linked_list(git_repo *root) {
+	if (root != NULL) {
+		git_repo *repo = root;
+		cleanup_linked_list(root->next);
+		repo->repo = NULL;
+		repo->next = NULL;
+	}
+}
+
+void cleanup_git_repos(git_repository **repos) {
+	for (int i = 0; repos[i] != NULL; i++) {
+		git_repository_free(repos[i]);
+		repos[i] = NULL;
+	}
+	free(repos);
+}
+
 git_repository **init_git(config *cfg) {
-	git_repository **repos;
-	git_repository *repo;
+	git_repository **repos = NULL;
+	git_repository *repo = NULL;
+	git_repo *first = NULL, *last = NULL, *current = NULL;
+	DIR *root = opendir(cfg->git_root);
+	struct dirent entry, *result;
+	int repo_count = 0;
+
+	log(LOG_INFO, "Initializing libgit2.");
+	int ret = git_libgit2_init();
+
+	log(LOG_INFO, "Searching \"%s\" for repositories.", cfg->git_root);
+	/* Find all git repos in the git root. */
+	while (readdir_r(root, &entry, &result) == 0 && result != NULL) {
+		log(LOG_DEBUG, "entry.d_name %s, result->d_name: %s", entry.d_name, result->d_name);
+		/* Is this entry a directory? */
+		if (entry.d_type == DT_DIR) {
+			/* Is the entry neither ".", nor ".."? */
+			if (strcmp(entry.d_name, ".") && strcmp(entry.d_name, "..")) {
+				char *repo_dir = calloc(strlen(cfg->git_root) + strlen(entry.d_name) + 1, sizeof(char));
+
+				/* Append the directory name to the git root. */
+				/* Could also do this:
+				 * memcpy(repo_dir, cfg->git_root, strlen(cfg->git_repo));
+				 * strcat(repo_dir, entry.d_name);
+				 */
+				sprintf(repo_dir, "%s%s", cfg->git_root, entry.d_name);
+				/* Was no ignore file found? */
+				if (!find_ignore_file(repo_dir)) {
+					/* Did we fail to open the git repo? */
+					if (git_repository_open(&repo, repo_dir)) {
+						log(LOG_ERR, "Failed to open git repository %s, ignoring.", entry.d_name);
+					} else {
+						log(LOG_INFO, "Successfully opened git repository %s", entry.d_name);
+						current = add_repo(repo, &first, &last);
+						repo_count++;
+					}
+				}
+				free(repo_dir);
+			}
+		}
+	}
 
+	/* Did we find any repos? */
+	if (repo_count) {
+		log(LOG_INFO, "Found, and opened %i repositories.", repo_count);
+		/* Allocate repo_count + 1 git repos, since we need a NULL entry to denote the end. */
+		repos = calloc(repo_count+1, sizeof(git_repository *));
+		/* Add the repos to the array. */
+		int i = 0;
+		for (git_repo *r = first; r != NULL; /*repos[i] = r->repo,*/ r = r->next, i++) {
+			repos[i] = r->repo;
+		}
+		cleanup_linked_list(first);
+		first = NULL;
+		last = NULL;
+		current = NULL;
 
+	} else {
+		log(LOG_ERR, "Couldn't find, and/or open any repositories.");
+	}
 
+	return repos;
 }
-- 
cgit v1.2.3-13-gbd6f