From eaa0851500c111a0fe5a50bc3f8b5aa4354774db Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 11 Apr 2021 09:27:13 +0200
Subject: Add cleanup option to remove old tracked items

---
 src/fileutils.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

(limited to 'src/fileutils.c')

diff --git a/src/fileutils.c b/src/fileutils.c
index a66bba6..72d9c29 100644
--- a/src/fileutils.c
+++ b/src/fileutils.c
@@ -10,6 +10,7 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/stat.h>
+#include <dirent.h>
 
 const char* get_home_dir(void) {
     const char *home_dir = getenv("HOME");
@@ -83,6 +84,63 @@ int create_directory_recursive(char *path) {
     return 0;
 }
 
+static int is_path(const char *path) {
+    struct stat s;
+    if(stat(path, &s) == 0)
+        return S_ISDIR(s.st_mode);
+    return 0;
+}
+
+static int remove_recursive_mutable(char *path) {
+    int path_len = strlen(path);
+    int res = 0;
+
+    struct dirent *dir;
+    DIR *d = opendir(path);
+    if(!d) {
+        fprintf(stderr, "Failed to open directory: %s\n", path);
+        return -1;
+    }
+
+    while((dir = readdir(d)) != NULL) {
+        int filename_len = strlen(dir->d_name);
+        if((filename_len == 1 && dir->d_name[0] == '.') || (filename_len == 2 && dir->d_name[0] == '.' && dir->d_name[1] == '.'))
+            continue;
+
+        path[path_len] = '/';
+        memcpy(path + path_len + 1, dir->d_name, filename_len);
+        path[path_len + 1 + filename_len] = '\0';
+
+        int is_dir = dir->d_type == DT_DIR;
+        if(dir->d_type == DT_UNKNOWN)
+            is_dir = is_path(path);
+
+        if(is_dir) {
+            res = remove_recursive_mutable(path);
+            if(res != 0)
+                goto cleanup;
+        }
+
+        res = remove(path);
+        if(res != 0)
+            goto cleanup;
+    }
+
+    cleanup:
+    path[path_len] = '\0';
+    res |= remove(path);
+    closedir(d);
+    return res;
+}
+
+int remove_recursive(char *path) {
+    int path_len = strlen(path);
+    char fullpath[PATH_MAX];
+    memcpy(fullpath, path, path_len);
+    fullpath[path_len] = '\0';
+    return remove_recursive_mutable(fullpath);
+}
+
 int file_exists(const char *path) {
     return access(path, F_OK);
 }
-- 
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