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Merge pull request #1811 from gpanders/open-no-wait-linux

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os/open: do not wait for commands which do not terminate
This commit is contained in:
Mitchell Hashimoto
2024-05-31 11:54:27 -07:00
committed by GitHub
parent 2ca1a7aeed 695bc307ba
commit 8c8e0946b4
1 changed files with 29 additions and 20 deletions
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49
src/os/open.zig
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@ -7,34 +7,43 @@ const Allocator = std.mem.Allocator;
/// Any output on stderr is logged as a warning in the application logs.
/// Output on stdout is ignored.
pub fn open(alloc: Allocator, url: []const u8) !void {
const argv = switch (builtin.os.tag) {
.linux => &.{ "xdg-open", url },
.macos => &.{ "open", url },
.windows => &.{ "rundll32", "url.dll,FileProtocolHandler", url },
// Some opener commands terminate after opening (macOS open) and some do not
// (xdg-open). For those which do not terminate, we do not want to wait for
// the process to exit to collect stderr.
const argv, const wait = switch (builtin.os.tag) {
.linux => .{ &.{ "xdg-open", url }, false },
.macos => .{ &.{ "open", url }, true },
.windows => .{ &.{ "rundll32", "url.dll,FileProtocolHandler", url }, false },
.ios => return error.Unimplemented,
else => @compileError("unsupported OS"),
};
var exe = std.process.Child.init(argv, alloc);
// Pipe stdout/stderr so we can collect output from the command
exe.stdout_behavior = .Pipe;
exe.stderr_behavior = .Pipe;
var stdout = std.ArrayList(u8).init(alloc);
var stderr = std.ArrayList(u8).init(alloc);
defer {
stdout.deinit();
stderr.deinit();
if (comptime wait) {
// Pipe stdout/stderr so we can collect output from the command
exe.stdout_behavior = .Pipe;
exe.stderr_behavior = .Pipe;
}
// 50 KiB is the default value used by std.process.Child.run
const output_max_size = 50 * 1024;
try exe.spawn();
try exe.collectOutput(&stdout, &stderr, output_max_size);
_ = try exe.wait();
// If we have any stderr output we log it. This makes it easier for
// users to debug why some open commands may not work as expected.
if (stderr.items.len > 0) std.log.err("open stderr={s}", .{stderr.items});
if (comptime wait) {
// 50 KiB is the default value used by std.process.Child.run
const output_max_size = 50 * 1024;
var stdout = std.ArrayList(u8).init(alloc);
var stderr = std.ArrayList(u8).init(alloc);
defer {
stdout.deinit();
stderr.deinit();
}
try exe.collectOutput(&stdout, &stderr, output_max_size);
_ = try exe.wait();
// If we have any stderr output we log it. This makes it easier for
// users to debug why some open commands may not work as expected.
if (stderr.items.len > 0) std.log.err("open stderr={s}", .{stderr.items});
}
}