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695bc307ba
Some opener commands (like macOS's open) finish immediately after running, while others (xdg-open) do not, staying alive until the application that was opened itself terminates. For now, we explicitly state whether or not we should wait for a command. Eventually we may want to do something more generic (e.g. wait for some predetermined amount of time and if the process does not complete, give up without collecting stderr).
50 lines
1.7 KiB
Zig
50 lines
1.7 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const Allocator = std.mem.Allocator;
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/// Open a URL in the default handling application.
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///
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/// Any output on stderr is logged as a warning in the application logs.
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/// Output on stdout is ignored.
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pub fn open(alloc: Allocator, url: []const u8) !void {
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// Some opener commands terminate after opening (macOS open) and some do not
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// (xdg-open). For those which do not terminate, we do not want to wait for
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// the process to exit to collect stderr.
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const argv, const wait = switch (builtin.os.tag) {
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.linux => .{ &.{ "xdg-open", url }, false },
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.macos => .{ &.{ "open", url }, true },
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.windows => .{ &.{ "rundll32", "url.dll,FileProtocolHandler", url }, false },
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.ios => return error.Unimplemented,
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else => @compileError("unsupported OS"),
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};
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var exe = std.process.Child.init(argv, alloc);
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if (comptime wait) {
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// Pipe stdout/stderr so we can collect output from the command
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exe.stdout_behavior = .Pipe;
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exe.stderr_behavior = .Pipe;
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}
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try exe.spawn();
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if (comptime wait) {
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// 50 KiB is the default value used by std.process.Child.run
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const output_max_size = 50 * 1024;
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var stdout = std.ArrayList(u8).init(alloc);
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var stderr = std.ArrayList(u8).init(alloc);
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defer {
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stdout.deinit();
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stderr.deinit();
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}
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try exe.collectOutput(&stdout, &stderr, output_max_size);
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_ = try exe.wait();
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// If we have any stderr output we log it. This makes it easier for
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// users to debug why some open commands may not work as expected.
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if (stderr.items.len > 0) std.log.err("open stderr={s}", .{stderr.items});
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}
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}
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