From 93c6d10ea0048a32009395a2154978ce3f538da7 Mon Sep 17 00:00:00 2001
From: mrb0nk500 <b0nk@b0nk.xyz>
Date: Wed, 27 Jul 2022 08:48:22 -0300
Subject: git: Replace all uses of `git_repo` with the more generic
 `linked_list`

We don't need a type specific linked list anymore, so we can just get
rid of it, plus it makes the code much cleaner in the process.
---
 git.c | 44 +++++++++-----------------------------------
 git.h |  6 ------
 2 files changed, 9 insertions(+), 41 deletions(-)

diff --git a/git.c b/git.c
index 4ba9f97..ed4805a 100644
--- a/git.c
+++ b/git.c
@@ -12,21 +12,11 @@
 #include <unistd.h>
 #include "config.h"
 #include "git.h"
+#include "linked_list.h"
 #include "macros.h"
 #include "misc.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;
@@ -41,16 +31,6 @@ int find_ignore_file(const char *path) {
 	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;
-		free(repo);
-	}
-}
-
 void cleanup_git_repos(git_repository **repos) {
 	for (int i = 0; repos[i] != NULL; i++) {
 		git_repository_free(repos[i]);
@@ -393,11 +373,9 @@ int create_pull_request_dir(pull_request *pr, index *idx, const char *root) {
 
 git_repository **init_git(config *cfg) {
 	git_repository **repos = NULL;
-	git_repository *repo = NULL;
-	git_repo *first = NULL, *last = NULL, *current = NULL;
+	linked_list *repo_list = 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();
@@ -420,13 +398,13 @@ git_repository **init_git(config *cfg) {
 				sprintf(repo_dir, "%s/%s", cfg->git_root, entry.d_name);
 				/* Was no ignore file found? */
 				if (!find_ignore_file(repo_dir)) {
+					git_repository *repo = NULL;
 					/* 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++;
+						repo_list = add_node(&repo_list, repo);
 					}
 				}
 				free(repo_dir);
@@ -435,20 +413,16 @@ git_repository **init_git(config *cfg) {
 	}
 
 	/* Did we find any repos? */
-	if (repo_count) {
+	if (repo_list != NULL) {
+		int repo_count = linked_list_size(repo_list);
 		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;
+		for (linked_list *node = repo_list; node != NULL; /*repos[repo_count] = (git_repository *)node->data,*/ node = node->prev, --repo_count) {
+			repos[repo_count] = (git_repository *)node->data;
 		}
-		cleanup_linked_list(first);
-		first = NULL;
-		last = NULL;
-		current = NULL;
-
+		cleanup_linked_list(repo_list);
 	} else {
 		log(LOG_ERR, "Couldn't find, and/or open any repositories.");
 	}
diff --git a/git.h b/git.h
index 351b92d..dd770e2 100644
--- a/git.h
+++ b/git.h
@@ -5,17 +5,11 @@
 #include <stdint.h>
 #include <time.h>
 
-typedef struct git_repo git_repo;
 typedef struct pull_request pull_request;
 typedef struct file file;
 typedef struct comment comment;
 typedef struct git_branch git_branch;
 
-struct git_repo {
-	git_repo *next;
-	git_repository *repo;
-};
-
 struct file {
 	char *name;	/* Name of file. */
 	char *buf;	/* Buffer containing contents of file. */
-- 
cgit v1.2.3-13-gbd6f