this repo has no description
cmd: add help and usage
+55
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+55
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src/main.zig
+55
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src/main.zig
···
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const posix = std.posix;
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const usage =
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\\Usage:
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\\ els [options] [directory]
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\\
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\\ --help Print this message and exit
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\\
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\\DISPLAY OPTIONS
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\\ -a, --all Show files that start with a dot (ASCII 0x2E)
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\\ -A, --almost-all Like --all, but skips implicit "." and ".." directories
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\\ --color=WHEN When to use colors (always, auto, never)
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\\ --icons=WHEN When to display icons (always, auto, never)
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\\ -l, --long Display extended file metadata
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;
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const Options = struct {
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all: bool = false,
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@"almost-all": bool = false,
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color: enum { none, auto, always } = .auto,
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color: When = .auto,
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@"group-directories-first": bool = true,
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icons: bool = true,
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icons: When = .auto,
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long: bool = false,
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directory: [:0]const u8 = ".",
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isatty: bool = false,
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colors: Colors = .none,
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const When = enum {
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never,
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auto,
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always,
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};
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const Colors = struct {
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reset: []const u8,
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dir: []const u8,
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const bold = "\x1b[1m";
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};
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fn useColor(self: Options) bool {
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switch (self.color) {
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.none => return false,
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.never => return false,
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.always => return true,
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.auto => return self.isatty,
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}
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}
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fn useIcons(self: Options) bool {
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switch (self.icons) {
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.never => return false,
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.always => return true,
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.auto => return self.isatty,
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}
···
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else if (eql(val, "false"))
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cmd.opts.@"group-directories-first" = false;
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} else if (eql(opt, "color")) {
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if (eql(val, "always"))
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cmd.opts.color = .always
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else if (eql(val, "auto"))
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cmd.opts.color = .auto
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else if (eql(val, "none"))
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cmd.opts.color = .none;
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cmd.opts.color = std.meta.stringToEnum(Options.When, val) orelse {
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const w = std.io.getStdErr().writer();
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try w.print("Invalid color option: '{s}'", .{val});
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std.process.exit(1);
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};
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} else if (eql(opt, "icons")) {
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cmd.opts.icons = std.meta.stringToEnum(Options.When, val) orelse {
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const w = std.io.getStdErr().writer();
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try w.print("Invalid color option: '{s}'", .{val});
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std.process.exit(1);
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};
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} else if (eql(opt, "help")) {
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return std.io.getStdErr().writeAll(usage);
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} else {
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const w = std.io.getStdErr().writer();
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try w.print("Invalid opt: '{s}'", .{opt});
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try writer.print("{d: >5} ", .{@as(u32, @intCast(time.year))});
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}
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if (cmd.opts.icons and cmd.opts.isatty) {
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if (cmd.opts.useIcons()) {
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const icon = Icon.get(entry);
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try writer.writeAll(icon.color);
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try writer.writeAll(icon.icon);
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try writer.writeAll(colors.reset);
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if (cmd.opts.useColor()) {
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try writer.writeAll(icon.color);
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try writer.writeAll(icon.icon);
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try writer.writeAll(colors.reset);
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} else {
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try writer.writeAll(icon.icon);
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}
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try writer.writeByte(' ');
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}
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···
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var iter = dir.iterate();
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while (try iter.next()) |dirent| {
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if (!cmd.opts.all and std.mem.startsWith(u8, dirent.name, ".")) continue;
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if (!cmd.opts.@"almost-all" and std.mem.startsWith(u8, dirent.name, ".")) continue;
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const nameZ = try cmd.arena.dupeZ(u8, dirent.name);
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try results.append(cmd.arena, .{
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.name = nameZ,