aws-sdk-for-zig/CopyStep.zig

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const std = @import("std");
const CopyStep = @This();
step: std.build.Step,
builder: *std.build.Builder,
from_path: []const u8 = null,
to_path: []const u8 = null,
pub fn create(
b: *std.build.Builder,
from_path_relative: []const u8,
to_path_relative: []const u8,
) *CopyStep {
var result = b.allocator.create(CopyStep) catch @panic("memory");
result.* = CopyStep{
.step = std.build.Step.init(.custom, "copy a file", b.allocator, make),
.builder = b,
.from_path = std.fs.path.resolve(b.allocator, &[_][]const u8{
b.build_root,
from_path_relative,
}) catch @panic("memory"),
.to_path = std.fs.path.resolve(b.allocator, &[_][]const u8{
b.build_root,
to_path_relative,
}) catch @panic("memory"),
};
return result;
}
fn make(step: *std.build.Step) !void {
const self = @fieldParentPtr(CopyStep, "step", step);
std.fs.copyFileAbsolute(self.from_path, self.to_path, .{}) catch |e| {
std.log.err("Error copying {s} to {s}: {s}", .{ self.from_path, self.to_path, e });
std.os.exit(1);
};
}