From 26639e50682ecb0f7373935de2dbc8d1d2319226 Mon Sep 17 00:00:00 2001
From: Uko Kokņevičs
Date: Thu, 28 Apr 2022 15:24:04 +0300
Subject: Add support for getting config directories

---
 xdg.zig | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'xdg.zig')

diff --git a/xdg.zig b/xdg.zig
index 8466066..a8f3aad 100644
--- a/xdg.zig
+++ b/xdg.zig
@@ -1,6 +1,7 @@
 const std = @import("std");
 
 const Allocator = std.mem.Allocator;
+const ArrayList = std.ArrayList;
 const Dir = std.fs.Dir;
 
 pub fn getDataHome(allocator: Allocator, app_name: []const u8) ![]u8 {
@@ -15,6 +16,18 @@ pub fn getDataHome(allocator: Allocator, app_name: []const u8) ![]u8 {
     return error.HomeNotFound;
 }
 
+pub fn getConfigHome(allocator: Allocator, app_name: []const u8) ![]u8 {
+    if (std.os.getenv("XDG_CONFIG_HOME")) |config_home| {
+        return std.fs.path.join(allocator, &.{ config_home, app_name });
+    }
+
+    if (std.os.getenv("HOME")) |home| {
+        return std.fs.path.join(allocator, &.{ home, ".config", app_name });
+    }
+
+    return error.HomeNotFound;
+}
+
 pub fn getBinHome(allocator: Allocator) ![]u8 {
     if (std.os.getenv("HOME")) |home| {
         return std.fs.path.join(allocator, &.{ home, ".local", "bin" });
@@ -23,6 +36,36 @@ pub fn getBinHome(allocator: Allocator) ![]u8 {
     return error.HomeNotFound;
 }
 
+pub fn getConfigDirs(allocator: Allocator, app_name: []const u8) ![][]u8 {
+    var list = ArrayList([]u8).init(allocator);
+    errdefer for (list.items) |s| allocator.free(s);
+    defer list.deinit();
+
+    if (std.os.getenv("XDG_CONFIG_DIRS")) |config_dirs| {
+        var it = std.mem.split(u8, config_dirs, ":");
+        while (it.next()) |config_dir| {
+            try list.append(try std.fs.path.join(allocator, &.{ config_dir, app_name }));
+        }
+    } else {
+        try list.append(try std.fs.path.join(allocator, &.{ "/etc/xdg", app_name }));
+    }
+
+    return list.toOwnedSlice();
+}
+
+pub fn getAllConfigDirs(allocator: Allocator, app_name: []const u8) ![][]u8 {
+    var list = ArrayList([]u8).init(allocator);
+    errdefer for (list.items) |s| allocator.free(s);
+    defer list.deinit();
+
+    try list.append(try getConfigHome(allocator, app_name));
+    const config_dirs = try getConfigDirs(allocator, app_name);
+    defer allocator.free(config_dirs);
+    try list.appendSlice(config_dirs);
+
+    return list.toOwnedSlice();
+}
+
 pub fn openDataHome(allocator: Allocator, app_name: []const u8) !Dir {
     var data_home = try getDataHome(allocator, app_name);
     defer allocator.free(data_home);
-- 
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