From 7aa11b7a8abacf81dec20fff21216df35d333756 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Sun, 27 Jul 2025 18:50:33 -0700
Subject: Pulls in pengueno from npm

---
 u/process/argv.ts | 79 -------------------------------------------------------
 1 file changed, 79 deletions(-)
 delete mode 100644 u/process/argv.ts

(limited to 'u/process/argv.ts')

diff --git a/u/process/argv.ts b/u/process/argv.ts
deleted file mode 100644
index 396fa96..0000000
--- a/u/process/argv.ts
+++ /dev/null
@@ -1,79 +0,0 @@
-import { Either, type Mapper, type IEither, Optional } from '@emprespresso/pengueno';
-
-export const isArgKey = <K extends string>(k: string): k is K => k.startsWith('--');
-
-interface ArgHandler<V> {
-    absent?: V;
-    unspecified?: V;
-    present: Mapper<string, V>;
-}
-
-export const getArg = <K extends string, V>(
-    arg: K,
-    argv: Array<string>,
-    whenValue: ArgHandler<V>,
-): IEither<Error, V> => {
-    const argIndex = Optional.from(argv.findIndex((_argv) => isArgKey(_argv) && _argv.split('=')[0] === arg)).filter(
-        (index) => index >= 0 && index < argv.length,
-    );
-    if (!argIndex.present()) {
-        return Optional.from(whenValue.absent)
-            .map((v) => Either.right<Error, V>(v))
-            .orSome(() =>
-                Either.left(
-                    new Error(`arg ${arg} is not present in arguments list and does not have an 'absent' value`),
-                ),
-            )
-            .get();
-    }
-
-    return argIndex
-        .flatMap((idx) =>
-            Optional.from(argv.at(idx)).map((_argv) => (_argv.includes('=') ? _argv.split('=')[1] : argv.at(idx + 1))),
-        )
-        .filter((next) => !isArgKey(next))
-        .map((next) => whenValue.present(next))
-        .orSome(() => whenValue.unspecified)
-        .map((v) => Either.right<Error, V>(<V>v))
-        .get();
-};
-
-type MappedArgs<
-    Args extends ReadonlyArray<string>,
-    Handlers extends Partial<Record<Args[number], ArgHandler<unknown>>>,
-> = {
-    [K in Args[number]]: K extends keyof Handlers ? (Handlers[K] extends ArgHandler<infer T> ? T : string) : string;
-};
-
-export const argv = <
-    const Args extends ReadonlyArray<string>,
-    const Handlers extends Partial<Record<Args[number], ArgHandler<unknown>>>,
->(
-    args: Args,
-    handlers?: Handlers,
-    argv = process.argv.slice(2),
-): IEither<Error, MappedArgs<Args, Handlers>> => {
-    type Result = MappedArgs<Args, Handlers>;
-
-    const defaultHandler: ArgHandler<string> = { present: (value: string) => value };
-
-    const processArg = (arg: Args[number]): IEither<Error, [Args[number], unknown]> => {
-        const handler = handlers?.[arg] ?? defaultHandler;
-        return getArg(arg, argv, handler).mapRight((value) => [arg, value] as const);
-    };
-
-    const res = args
-        .map(processArg)
-        .reduce(
-            (acc: IEither<Error, Partial<Result>>, current: IEither<Error, [Args[number], unknown]>) =>
-                acc.flatMap((accValue) =>
-                    current.mapRight(([key, value]) => ({
-                        ...accValue,
-                        [key]: value,
-                    })),
-                ),
-            Either.right(<Partial<Result>>{}),
-        )
-        .mapRight((result) => <Result>result);
-    return res;
-};
-- 
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