chore: reworking CLI + import specifiers

codegen.ts

@@ -11,7 +11,7 @@ const args = parse(Deno.args, {
   string: ["src", "out", "import"],
   boolean: ["help"],
   default: {
-    import: "deno",
+    import: "https://deno.land/x/capi/mod.ts",
   },
   alias: {
     src: ["s"],
@@ -25,11 +25,7 @@ if (!args.src) fail();
 if (!args.out) fail();
 
 await codegen({
-  importSpecifier: args.import === "npm"
-    ? "capi"
-    : args.import === "deno"
-    ? "https://deno.land/x/capi/mod.ts"
-    : args.import,
+  importSpecifier: args.import,
   metadata: await getMetadata(args.src),
   outDir: args.out,
 }).write();

codegen/codecVisitor.ts

@@ -1,4 +1,3 @@
-import * as path from "../deps/std/path.ts";
 import * as M from "../frame_metadata/mod.ts";
 import { Files } from "./Files.ts";
 import { CodegenProps } from "./mod.ts";
@@ -18,7 +17,7 @@ export function createCodecVisitor(
       "\n",
       [
         "import { ChainError, BitSequence, Era, $, $era, $null } from",
-        S.string(path.relative(props.outDir, props.importSpecifier)),
+        S.string(props.importSpecifier),
       ],
       [`import type * as t from "./mod.ts"`],
       ...codecs,

codegen/mod.ts

@@ -1,4 +1,3 @@
-import * as path from "../deps/std/path.ts";
 import * as M from "../frame_metadata/mod.ts";
 import { createCodecVisitor } from "./codecVisitor.ts";
 import { Files } from "./Files.ts";
@@ -21,7 +20,7 @@ export function codegen(props: CodegenProps): Files {
       "\n",
       [
         "import { ChainError, BitSequence, Era, $ } from",
-        S.string(path.relative(props.outDir, props.importSpecifier)),
+        S.string(props.importSpecifier),
       ],
       [`import * as _codec from "./codecs.ts"`],
       [`export { _metadata }`],

test_util/codegen.ts

@@ -10,12 +10,11 @@ export function importCodegen(config: TestConfig) {
   return U.getOr(memo, config, async () => {
     const metadata = U.throwIfError(await C.run(C.metadata(config)));
     const outDir = path.join(
-      path.dirname(path.fromFileUrl(import.meta.url)),
-      "../target/codegen/",
+      new URL("../target/codegen", import.meta.url).pathname,
       config.runtimeName,
     );
     await gen.codegen({
-      importSpecifier: "./mod.ts",
+      importSpecifier: "../../../mod.ts",
       metadata,
       outDir,
     }).write();