Failed attempt at fixing memory bug

src/package.v

@@ -126,6 +126,7 @@ pub fn read_pkg(pkg_path string) ?Pkg {
 
 	mut buf := voidptr(0)
 	mut files := []string{}
+	mut pkg_info := PkgInfo{}
 
 	for C.archive_read_next_header(a, &entry) == C.ARCHIVE_OK {
 		pathname := C.archive_entry_pathname(entry)
@@ -142,14 +143,21 @@ pub fn read_pkg(pkg_path string) ?Pkg {
 
 			// TODO can this unsafe block be avoided?
 			buf = unsafe { malloc(size) }
-			C.archive_read_data(a, voidptr(buf), size)
+			C.archive_read_data(a, buf, size)
+
+			unsafe {
+				println(cstring_to_vstring(buf))
+			}
+			pkg_info = parse_pkg_info_string(unsafe { cstring_to_vstring(buf) }) ?
+
+			unsafe {
+				free(buf)
+			}
 		} else {
 			C.archive_read_data_skip(a)
 		}
 	}
 
-	mut pkg_info := parse_pkg_info_string(unsafe { cstring_to_vstring(&char(buf)) }) ?
-
 	pkg_info.csize = i64(os.file_size(pkg_path))
 
 	return Pkg{

src/repo.v

@@ -45,7 +45,7 @@ pub fn new(repo_dir string, pkg_dir string) ?Repo {
 // add_from_path adds a package from an arbitrary path & moves it into the pkgs
 // directory if necessary.
 pub fn (r &Repo) add_from_path(pkg_path string) ?bool {
-	pkg := package.read_pkg(pkg_path) or { return error('Failed to read package file.') }
+	pkg := package.read_pkg(pkg_path) or { return error('Failed to read package file: $err.msg') }
 
 	added := r.add(pkg) ?
 
@@ -96,6 +96,7 @@ fn (r &Repo) pkg_path(pkg &package.Pkg) string {
 
 // Re-generate the repo archive files
 fn (r &Repo) sync() ? {
+	lock r.mutex {
 		a := C.archive_write_new()
 		entry := C.archive_entry_new()
 		st := C.stat{}
@@ -110,7 +111,8 @@ fn (r &Repo) sync() ? {
 		C.archive_write_open_filename(a, &char(repo_path.str))
 
 		// Iterate over each directory
-	for d in os.ls(r.repo_dir) ?.filter(os.is_dir(os.join_path_single(r.repo_dir, it))) {
+		for d in os.ls(r.repo_dir) ?.filter(os.is_dir(os.join_path_single(r.repo_dir,
+			it))) {
 			inner_path := os.join_path_single(d, 'desc')
 			actual_path := os.join_path_single(r.repo_dir, inner_path)
 
@@ -140,3 +142,4 @@ fn (r &Repo) sync() ? {
 		C.archive_write_close(a)
 		C.archive_write_free(a)
 	}
+}

src/routes.v

@@ -74,7 +74,7 @@ fn (mut app App) put_package() web.Result {
 	}
 
 	added := app.repo.add_from_path(pkg_path) or {
-		app.lerror('Error while adding package.')
+		app.lerror('Error while adding package: $err.msg')
 
 		return app.text('Failed to add package.')
 	}