Bob Farrell 0c7a11497f Background jobs
Use in-memory KV store (JetKV) for simple job queue.

Build script generates an array of Zig modules in `src/app/jobs/` and
stores their name + run function (`run(allocator, params, logger)`).

View functions schedule jobs with arbitrary params.

Thread pool spawns a (configurable) number of workers and pops jobs from
the queue, then invokes the appropriate run function.
2024-04-15 18:12:40 +01:00

60 lines
1.7 KiB
Zig

const std = @import("std");
/// Run the layout generator. Create a layout template in `src/app/views/layouts`
pub fn run(allocator: std.mem.Allocator, cwd: std.fs.Dir, args: [][]const u8, help: bool) !void {
if (help or args.len != 1) {
std.debug.print(
\\Generate a layout. Layouts encapsulate common boilerplate mark-up.
\\
\\Specify a layout name to create a new Zmpl template in src/app/views/layouts/
\\
\\Example:
\\
\\ jetzig generate layout standard
\\
, .{});
if (help) return;
return error.JetzigCommandError;
}
const dir_path = try std.fs.path.join(
allocator,
&[_][]const u8{ "src", "app", "views", "layouts" },
);
defer allocator.free(dir_path);
var dir = try cwd.makeOpenPath(dir_path, .{});
defer dir.close();
const filename = try std.mem.concat(allocator, u8, &[_][]const u8{ args[0], ".zmpl" });
defer allocator.free(filename);
const file = dir.createFile(filename, .{ .exclusive = true }) catch |err| {
switch (err) {
error.PathAlreadyExists => {
std.debug.print("Layout already exists: {s}\n", .{filename});
return error.JetzigCommandError;
},
else => return err,
}
};
try file.writeAll(
\\<html>
\\ <head></head>
\\ <body>
\\ <main>{zmpl.content}</main>
\\ </body>
\\</html>
\\
);
file.close();
const realpath = try dir.realpathAlloc(allocator, filename);
defer allocator.free(realpath);
std.debug.print("Generated layout: {s}\n", .{realpath});
}