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Merge pull request #1636 from jparise/homedir-macos

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os/homedir: use NSFileManager on macOS
This commit is contained in:
Mitchell Hashimoto
2024-03-31 09:36:08 -07:00
committed by GitHub
parent 9e4af4b599 29a5b52885
commit b793228ed4
1 changed files with 16 additions and 22 deletions
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38
src/os/homedir.zig
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@ -3,6 +3,7 @@ const builtin = @import("builtin");
const assert = std.debug.assert; const assert = std.debug.assert;
const passwd = @import("passwd.zig"); const passwd = @import("passwd.zig");
const posix = std.posix; const posix = std.posix;
const objc = @import("objc");
const Error = error{ const Error = error{
/// The buffer used for output is not large enough to store the value. /// The buffer used for output is not large enough to store the value.
@ -31,33 +32,26 @@ fn homeUnix(buf: []u8) !?[]u8 {
return buf[0..result.len]; return buf[0..result.len];
} }
// On macOS: [NSFileManager defaultManager].homeDirectoryForCurrentUser.path
if (builtin.os.tag == .macos) {
const NSFileManager = objc.getClass("NSFileManager").?;
const manager = NSFileManager.msgSend(objc.Object, objc.sel("defaultManager"), .{});
const homeURL = manager.getProperty(objc.Object, "homeDirectoryForCurrentUser");
const homePath = homeURL.getProperty(objc.Object, "path");
const c_str = homePath.getProperty([*:0]const u8, "UTF8String");
const result = std.mem.sliceTo(c_str, 0);
if (buf.len < result.len) return Error.BufferTooSmall;
@memcpy(buf[0..result.len], result);
return buf[0..result.len];
}
// Everything below here will require some allocation // Everything below here will require some allocation
var tempBuf: [1024]u8 = undefined; var tempBuf: [1024]u8 = undefined;
var fba = std.heap.FixedBufferAllocator.init(&tempBuf); var fba = std.heap.FixedBufferAllocator.init(&tempBuf);
// If we're on darwin, we try the directory service. I'm not sure if there
// is a Mac API to do this but if so we can link to that...
if (builtin.os.tag == .macos) {
const run = try std.ChildProcess.run(.{
.allocator = fba.allocator(),
.argv = &[_][]const u8{
"/bin/sh",
"-c",
"dscl -q . -read /Users/\"$(whoami)\" NFSHomeDirectory | sed 's/^[^ ]*: //'",
},
.max_output_bytes = fba.buffer.len / 2,
});
if (run.term == .Exited and run.term.Exited == 0) {
const result = trimSpace(run.stdout);
if (buf.len < result.len) return Error.BufferTooSmall;
@memcpy(buf[0..result.len], result);
return buf[0..result.len];
}
}
// We try passwd. This doesn't work on multi-user mac but we try it anyways. // We try passwd. This doesn't work on multi-user mac but we try it anyways.
fba.reset();
const pw = try passwd.get(fba.allocator()); const pw = try passwd.get(fba.allocator());
if (pw.home) |result| { if (pw.home) |result| {
if (buf.len < result.len) return Error.BufferTooSmall; if (buf.len < result.len) return Error.BufferTooSmall;