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zig build: add -l, --list-steps option to build_runner.zig

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dweiller 2023-02-10 02:23:31 +11:00 committed by Veikka Tuominen
parent d976b4e4a5
commit ca0528209f
1 changed files with 22 additions and 8 deletions
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30
lib/build_runner.zig
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@ -93,6 +93,8 @@ pub fn main() !void {
std.debug.print("Expected argument after {s}\n\n", .{arg});
return usageAndErr(builder, false, stderr_stream);
};
} else if (mem.eql(u8, arg, "-l") or mem.eql(u8, arg, "--list-steps")) {
return steps(builder, false, stdout_stream);
} else if (mem.eql(u8, arg, "--prefix-lib-dir")) {
dir_list.lib_dir = nextArg(args, &arg_idx) orelse {
std.debug.print("Expected argument after {s}\n\n", .{arg});
@ -232,20 +234,13 @@ pub fn main() !void {
};
}
fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !void {
fn steps(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !void {
// run the build script to collect the options
if (!already_ran_build) {
builder.resolveInstallPrefix(null, .{});
try builder.runBuild(root);
}
try out_stream.print(
\\Usage: {s} build [steps] [options]
\\
\\Steps:
\\
, .{builder.zig_exe});
const allocator = builder.allocator;
for (builder.top_level_steps.items) |top_level_step| {
const name = if (&top_level_step.step == builder.default_step)
@ -254,6 +249,23 @@ fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !voi
top_level_step.step.name;
try out_stream.print(" {s:<28} {s}\n", .{ name, top_level_step.description });
}
}
fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !void {
// run the build script to collect the options
if (!already_ran_build) {
builder.resolveInstallPrefix(null, .{});
try builder.runBuild(root);
}
try out_stream.print(
\\
\\Usage: {s} build [steps] [options]
\\
\\Steps:
\\
, .{builder.zig_exe});
try steps(builder, true, out_stream);
try out_stream.writeAll(
\\
@ -284,6 +296,7 @@ fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !voi
\\ Windows programs on Linux hosts. (default: no)
\\
\\ -h, --help Print this help and exit
\\ -l, --list-steps Print available steps
\\ --verbose Print commands before executing them
\\ --color [auto|off|on] Enable or disable colored error messages
\\ --prominent-compile-errors Output compile errors formatted for a human to read
@ -292,6 +305,7 @@ fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !voi
\\
);
const allocator = builder.allocator;
if (builder.available_options_list.items.len == 0) {
try out_stream.print(" (none)\n", .{});
} else {