1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
const std = @import("../std.zig");
const builtin = @import("builtin");
const unicode = std.unicode;
const mem = std.mem;
const fs = std.fs;
const native_os = builtin.os.tag;
const posix = std.posix;
pub const GetAppDataDirError = error{
OutOfMemory,
AppDataDirUnavailable,
};
/// Caller owns returned memory.
/// TODO determine if we can remove the allocator requirement
pub fn getAppDataDir(allocator: mem.Allocator, appname: []const u8) GetAppDataDirError![]u8 {
switch (native_os) {
.windows => {
const local_app_data_dir = std.process.getEnvVarOwned(allocator, "LOCALAPPDATA") catch |err| switch (err) {
error.OutOfMemory => |e| return e,
else => return error.AppDataDirUnavailable,
};
defer allocator.free(local_app_data_dir);
return fs.path.join(allocator, &[_][]const u8{ local_app_data_dir, appname });
},
.macos => {
const home_dir = posix.getenv("HOME") orelse {
// TODO look in /etc/passwd
return error.AppDataDirUnavailable;
};
return fs.path.join(allocator, &[_][]const u8{ home_dir, "Library", "Application Support", appname });
},
.linux, .freebsd, .netbsd, .dragonfly, .openbsd, .solaris, .illumos, .serenity => {
if (posix.getenv("XDG_DATA_HOME")) |xdg| {
if (xdg.len > 0) {
return fs.path.join(allocator, &[_][]const u8{ xdg, appname });
}
}
const home_dir = posix.getenv("HOME") orelse {
// TODO look in /etc/passwd
return error.AppDataDirUnavailable;
};
return fs.path.join(allocator, &[_][]const u8{ home_dir, ".local", "share", appname });
},
.haiku => {
var dir_path_buf: [std.fs.max_path_bytes]u8 = undefined;
const rc = std.c.find_directory(.B_USER_SETTINGS_DIRECTORY, -1, true, &dir_path_buf, dir_path_buf.len);
const settings_dir = try allocator.dupeZ(u8, mem.sliceTo(&dir_path_buf, 0));
defer allocator.free(settings_dir);
switch (rc) {
0 => return fs.path.join(allocator, &[_][]const u8{ settings_dir, appname }),
else => return error.AppDataDirUnavailable,
}
},
else => @compileError("Unsupported OS"),
}
}
test getAppDataDir {
if (native_os == .wasi) return error.SkipZigTest;
// We can't actually validate the result
const dir = getAppDataDir(std.testing.allocator, "zig") catch return;
defer std.testing.allocator.free(dir);
}
|
