doc: update readme

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM --platform=linux/amd64 mcr.microsoft.com/vscode/devcontainers/base:0-bullseye
+
+ENV DENO_INSTALL=/deno
+RUN mkdir -p /deno \
+    && curl -fsSL https://deno.land/x/install/install.sh | sh \
+    && chown -R vscode /deno
+
+ENV PATH=${DENO_INSTALL}/bin:${PATH} \
+    DENO_DIR=${DENO_INSTALL}/.cache/deno

.devcontainer/devcontainer.json

@@ -0,0 +1,12 @@
+{
+  "name": "Deno",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": ["denoland.vscode-deno"]
+    }
+  },
+  "remoteUser": "vscode"
+}

.gitignore

@@ -2,3 +2,4 @@
 .deno-make.json
 tests/.*
 tests/tests.exe
+tests/tests

README.md

@@ -11,6 +11,7 @@ features to the [deno](https://deno.land) task runner.
 - Write long tasks using arrays to improve readability
 - Add descriptions to your tasks
 - List and preview available tasks
+- Replace positional and arguments easily
 
 ![Advanced task configuration](/demo/config.png)
 
@@ -71,9 +72,7 @@ for convenience.
 }
 ```
 
-<!-- deno-fmt-ignore -->
-> [!NOTE]
-> It is even possible to alias `deno task make <+task>` to `deno task <+task>` !
+> ℹ️ It is even possible to alias `deno task make <+task>` to `deno task <+task>` !
 >
 > ```jsonc
 > // deno.jsonc
@@ -91,9 +90,7 @@ for convenience.
 deno task make <+task>
 ```
 
-<!-- deno-fmt-ignore -->
-> [!NOTE]
-> If _deno_make_ was aliased back to `deno task`, just use the following instead:
+> ℹ️ If _deno_make_ was aliased back to `deno task`, just use the following instead:
 >
 > ```bash
 > deno task start

deno.jsonc

@@ -3,6 +3,8 @@
     "make": "deno run --allow-env --allow-read --allow-write=.deno-make.json --allow-run=deno ./mod.ts $0",
     "test": "deno task make test",
     "code": "deno task make code",
+    "check": "deno task make check",
+    "cache": "deno task make cache",
     "ci": "deno task make ci"
   },
   "+tasks": {
@@ -41,14 +43,66 @@
       "description": "🧼 Lint and format code",
       "task": "deno lint && deno fmt"
     },
-    "code:check": {
+    "check": {
       "description": "🫧 Lint and check code fomatting",
-      "task": "deno lint && deno fmt --check"
+      "task": "deno lint && deno fmt",
+      "deno": {
+        "fmt": {
+          "check": true
+        }
+      }
+    },
+    "cache": {
+      "description": "📦 Cache dependencies",
+      "task": "deno cache *.ts",
+      "deno": {
+        "cache": {
+          "modules": {
+            "reload": true,
+            "check": "all"
+          }
+        }
+      }
+    },
+    "demo:flags": {
+      "description": "🎬 Demo: flags",
+      "task": [
+        "echo '0: $<0>' &&",
+        "echo '1: $<1>' &&",
+        "echo 'foo: $<foo>' &&",
+        "echo 'bar: $<bar>'"
+      ],
+      "args": [
+        {
+          "alias": "0",
+          "required": true,
+          "description": "Example of required argument"
+        },
+        {
+          "alias": "1",
+          "default": true,
+          "description": "Example of optional argument"
+        }
+      ],
+      "flags": {
+        "foo": {
+          "alias": "f",
+          "description": "Example of a standard flag"
+        },
+        "bar": {
+          "alias": "b",
+          "default": "bar",
+          "description": "Example of a defaulted flag"
+        },
+        "baz": {
+          "description": "Example of a non-aliased flag"
+        }
+      }
     },
     "ci": {
       "description": "🤖 CI checks",
       "task": [
-        "deno task make code:check &&",
+        "deno task make check &&",
         "deno task make test"
       ]
     }

deno.lock

@@ -13,6 +13,7 @@
   },
   "redirects": {
     "https://esm.sh/v132/@types/chai@~4.3/index.d.ts": "https://esm.sh/v132/@types/chai@4.3.8/index.d.ts",
+    "https://esm.sh/v133/@types/chai-as-promised@~7.1/index.d.ts": "https://esm.sh/v133/@types/chai-as-promised@7.1.8/index.d.ts",
     "https://esm.sh/v133/@types/chai@~4.3/index.d.ts": "https://esm.sh/v133/@types/chai@4.3.9/index.d.ts"
   },
   "remote": {
@@ -177,6 +178,7 @@
     "https://deno.land/std@0.204.0/path/windows/to_namespaced_path.ts": "e0f4d4a5e77f28a5708c1a33ff24360f35637ba6d8f103d19661255ef7bfd50d",
     "https://deno.land/std@0.205.0/assert/assert.ts": "9a97dad6d98c238938e7540736b826440ad8c1c1e54430ca4c4e623e585607ee",
     "https://deno.land/std@0.205.0/assert/assertion_error.ts": "4d0bde9b374dfbcbe8ac23f54f567b77024fb67dbb1906a852d67fe050d42f56",
+    "https://deno.land/std@0.205.0/flags/mod.ts": "0948466fc437f017f00c0b972a422b3dc3317a790bcf326429d23182977eaf9f",
     "https://deno.land/std@0.205.0/fmt/colors.ts": "c51c4642678eb690dcf5ffee5918b675bf01a33fba82acf303701ae1a4f8c8d9",
     "https://deno.land/std@0.205.0/fs/_util.ts": "fbf57dcdc9f7bc8128d60301eece608246971a7836a3bb1e78da75314f08b978",
     "https://deno.land/std@0.205.0/fs/copy.ts": "ca19e4837965914471df38fbd61e16f9e8adfe89f9cffb0c83615c83ea3fc2bf",
@@ -276,6 +278,7 @@
     "https://deno.land/x/zod@v3.21.4/locales/en.ts": "a7a25cd23563ccb5e0eed214d9b31846305ddbcdb9c5c8f508b108943366ab4c",
     "https://deno.land/x/zod@v3.21.4/mod.ts": "64e55237cb4410e17d968cd08975566059f27638ebb0b86048031b987ba251c4",
     "https://deno.land/x/zod@v3.21.4/types.ts": "b5d061babea250de14fc63764df5b3afa24f2b088a1d797fc060ba49a0ddff28",
+    "https://esm.sh/chai-as-promised@7.1.1?pin=v133": "c94bdef9e8697e6cca465af6ec3437cea7cf53e44ae62e8a869f976d0ab3f2c7",
     "https://esm.sh/chai@4.3.10": "e413ea40e1248a0a06e8812f22ec265c4a41cb57829c19017af5cb1def62880f",
     "https://esm.sh/chai@4.3.10?pin=v133": "e25839044ba92464bd0194939276cc97cbdec7f42ad2c49609d0092eaac1c8e1",
     "https://esm.sh/string-argv@0.3.2": "ba1d5479e1ed6293e5a7ffd3297e0eb55a23a5d5d7ac71306ee829fba4243402",
@@ -290,6 +293,7 @@
     "https://esm.sh/v132/string-argv@0.3.2/denonext/string-argv.mjs": "a7977920da1d72bf89b1db36d2c24fdfa82df6ce4f6c2b59a930b641a6ba9b37",
     "https://esm.sh/v132/type-detect@4.0.8/denonext/type-detect.mjs": "deb58bd7203992249a5795f7da35d00b67077fe6c03019349cb614ba22ef52ad",
     "https://esm.sh/v133/assertion-error@1.1.0/denonext/assertion-error.mjs": "0a4a5dccfb89070dd1e09fad036e706aa51d9dd3236ab019aed08bef1841695b",
+    "https://esm.sh/v133/chai-as-promised@7.1.1/denonext/chai-as-promised.mjs": "bbcd90c4502fe553f17aa1923cb07c22cb2302c1da1d50a046796ab71b9f7f2e",
     "https://esm.sh/v133/chai@4.3.10/denonext/chai.mjs": "fa4ea11c224f9f3abc5272c8917c0c629ec5ae2bec2fafe4edee09dfddcc4f68",
     "https://esm.sh/v133/check-error@1.0.3/denonext/check-error.mjs": "04b0b4e7d4470a991f1211e35075d68ad3d96602236853f615527af0e889a265",
     "https://esm.sh/v133/deep-eql@4.1.3/denonext/deep-eql.mjs": "3f406af09e31cfb3d403689e277eb392ee18361ca682c26a3955db094ba94802",

mod.ts

@@ -2,7 +2,16 @@
 import * as JSONC from "https://deno.land/std@0.205.0/jsonc/mod.ts"
 import { z as is } from "https://deno.land/x/zod@v3.21.4/mod.ts"
 import { fromZodError } from "https://esm.sh/zod-validation-error@1.5.0?pin=v133"
-import { bgBrightBlue, bold, gray, italic, underline, yellow } from "https://deno.land/std@0.205.0/fmt/colors.ts"
+import {
+  bgBrightBlue,
+  bold,
+  gray,
+  italic,
+  magenta,
+  underline,
+  yellow,
+} from "https://deno.land/std@0.205.0/fmt/colors.ts"
+import { parse } from "https://deno.land/std@0.205.0/flags/mod.ts"
 
 // Structure flags =========================================================================================================
 
@@ -10,7 +19,7 @@ import { bgBrightBlue, bold, gray, italic, underline, yellow } from "https://den
 const common = is.object({
   unstable: is.union([
     is.boolean().transform((v) => v ? "--unstable" : ""),
-    is.array(is.string()).transform((v) => v.length ? v.map((w) => `--unstable-${w}`) : ""),
+    is.array(is.string()).transform((v) => v.length ? v.map((w) => `--unstable-${w}`).join(" ") : ""),
   ]).optional(),
   quiet: is.boolean().optional().transform((v) => v ? "--quiet" : ""),
   config: is.union([
@@ -128,11 +137,11 @@ const _modules = is.object({
   check: is.union([
     is.boolean().transform((v) => v ? "--check=all" : "--no-check"),
     is.string().min(1).transform((v) => `--check=${v}`),
-  ]).optional().transform((v) => Object.values(v ?? {}).filter(Boolean).join(" ")),
+  ]).optional(),
   reload: is.union([
     is.boolean().transform((v) => v ? "--reload" : ""),
     is.array(is.string()).transform((v) => v.length ? `--reload=${v.join(",")}` : ""),
-  ]).optional().transform((v) => Object.values(v ?? {}).filter(Boolean).join(" ")),
+  ]).optional(),
   node_modules: is.boolean().optional().transform((v) => typeof v === "boolean" ? `--node-modules-dir=${v}` : ""),
   vendor: is.boolean().optional().transform((v) => typeof v === "boolean" ? `--vendor=${v}` : ""),
 })
@@ -174,8 +183,8 @@ const inspect = is.union([
     listen: is.string().min(1).optional().transform((v) => v ? `--inspect='${v}'` : ""),
     break: is.string().min(1).optional().transform((v) => v ? `--inspect-brk='${v}'` : ""),
     wait: is.string().min(1).optional().transform((v) => v ? `--inspect-wait='${v}'` : ""),
-  }),
-]).optional().transform((v) => Object.values(v ?? {}).filter(Boolean).join(" "))
+  }).transform((v) => Object.values(v).filter(Boolean).join(" ")),
+]).optional()
 
 /** Watch flags */
 const watch = is.union([
@@ -184,8 +193,8 @@ const watch = is.union([
   is.object({
     files: is.array(is.string()).optional().transform((v) => v?.length ? `--watch='${v.join(",")}'` : ""),
     clearScreen: is.boolean().optional().transform((v) => v === false ? "--no-clear-screen" : ""),
-  }),
-]).optional().transform((v) => Object.values(v ?? {}).filter(Boolean).join(" "))
+  }).transform((v) => Object.values(v).filter(Boolean).join(" ")),
+]).optional()
 
 // Deno flags =========================================================================================================
 
@@ -378,6 +387,24 @@ const _make = is.object({
     )
   ).default(() => ({})),
   cwd: is.string().optional(),
+  args: is.array(
+    is.object({
+      alias: is.string(),
+      default: is.unknown().optional(),
+      required: is.boolean().default(false),
+      description: is.string().default(""),
+    }).refine((value) => !(("default" in value) && (value.required)), {
+      message: "Cannot have default when value is required",
+    }),
+  ).default(() => []),
+  flags: is.record(
+    is.string(),
+    is.object({
+      alias: is.string().optional(),
+      default: is.unknown().optional(),
+      description: is.string().default(""),
+    }),
+  ).default(() => ({})),
   deno: is.object({
     bench,
     bundle,
@@ -403,15 +430,50 @@ const _make = is.object({
 /** Compute command to execute after applying deno flags */
 export function command(
   raw: string,
-  { deno }: Pick<is.infer<typeof _make>, "deno">,
-  { colors = false } = {},
+  { flags, args, deno, argv = [] }: Pick<is.infer<typeof _make>, "deno" | "flags" | "args"> & { argv?: string[] },
+  { colors = false, parseArgv = true } = {},
 ) {
-  for (const [subcommand, flags] of Object.entries(deno)) {
+  for (const [subcommand, options] of Object.entries(deno)) {
     raw = raw.replaceAll(
       `deno ${subcommand}`,
-      `deno ${subcommand} ${colors ? italic(underline(flags)) : flags}`,
+      `deno ${subcommand} ${colors ? italic(underline(options)) : options}`,
     )
   }
+  const { _, ...options } = parse(argv, {
+    alias: Object.fromEntries(
+      Object.entries(flags).filter(([_, { alias }]) => alias).map(([key, { alias }]) => [alias, key]),
+    ),
+    default: Object.fromEntries(
+      Object.entries(flags).filter(([_, options]) => "default" in options).map((
+        [key, options],
+      ) => [key, options.default]),
+    ),
+  })
+  for (let i = 0; i < args.length; i++) {
+    const { alias, required, default: defaults } = args[i]
+    if (parseArgv) {
+      if (required && (!(i in argv))) {
+        throw new ReferenceError(`Missing argument: ${alias}`)
+      }
+      raw = raw.replaceAll(`$<${alias}>`, `${argv[i] ?? defaults}`)
+      continue
+    }
+    if (colors) {
+      raw = raw
+        .replaceAll(`$<${alias}>`, italic(underline(`$<${alias}>`)))
+        .replaceAll(`$<${i}>`, italic(underline(`$<${alias}>`)))
+    }
+  }
+  for (const alias of Object.keys(flags)) {
+    if (parseArgv) {
+      raw = raw.replaceAll(`$<${alias}>`, `${options[alias]}`)
+      continue
+    }
+    if (colors) {
+      raw = raw
+        .replaceAll(`$<${alias}>`, italic(underline(`$<${alias}>`)))
+    }
+  }
   return raw
 }
 
@@ -419,6 +481,7 @@ export function command(
 export async function make(
   {
     task = "",
+    argv = [] as string[],
     config = "deno.jsonc",
     log = console.log,
     exit = true,
@@ -440,11 +503,11 @@ export async function make(
     }),
   )
   if (task) {
-    const { task: raw, env, deno, cwd } = tasks[task]
+    const { task: raw, env, deno, flags, args, cwd } = tasks[task]
     const temp = ".deno-make.json"
     const decoder = new TextDecoder()
     try {
-      const make = command(raw, { deno })
+      const make = command(raw, { deno, flags, args, argv })
       await Deno.writeTextFile(temp, JSON.stringify({ tasks: { make } }))
       const process = new Deno.Command("deno", {
         args: ["task", ...(cwd ? ["--cwd", cwd] : []), "--config", temp, "make"],
@@ -470,7 +533,7 @@ export async function make(
     }
   } else if (Object.keys(tasks).length) {
     for (
-      const [name, { task, description, env, cwd, deno }] of Object.entries(
+      const [name, { task, description, env, cwd, deno, flags, args }] of Object.entries(
         tasks,
       )
     ) {
@@ -485,17 +548,45 @@ export async function make(
           log(
             gray(
               `  ${k}=${v}${inherited ? underline(italic("→ inherited")) : ""}`
-                .trim(),
+                .trimEnd(),
             ),
           )
         }
       }
+      if (args.length) {
+        log(magenta(`Arguments:`))
+        for (const { alias, required, description, ...options } of args) {
+          log(
+            `  ${
+              magenta(
+                `${required ? `<${alias}>` : `[${alias}${"default" in options ? `=${options.default}` : ""}]`}`.padEnd(
+                  24,
+                ),
+              )
+            }${description}`,
+          )
+        }
+      }
+      if (Object.keys(flags).length) {
+        log(magenta(`Flags:`))
+        for (const [key, { alias, description, ...options }] of Object.entries(flags)) {
+          log(
+            `  ${
+              magenta(
+                `${alias ? `-${alias},` : "   "} --${key}${"default" in options ? `[=${options.default}]` : ""}`.padEnd(
+                  24,
+                ),
+              )
+            }${description}`,
+          )
+        }
+      }
       if (cwd) {
         log(gray(`Working directory:`))
         log(gray(`  ${cwd}`))
       }
       log(gray(`Task:`))
-      log(gray(`  ${command(task, { deno }, { colors: true })}`))
+      log(gray(`  ${command(task, { deno, args, flags }, { colors: true, parseArgv: false })}`))
       log("")
     }
     return { code: 0 }
@@ -505,5 +596,6 @@ export async function make(
 }
 
 if (import.meta.main) {
-  await make({ task: Deno.args[0] })
+  const [task, ...argv] = Deno.args
+  await make({ task, argv })
 }

mod_test.ts

@@ -1,7 +1,9 @@
 import { make } from "./mod.ts"
 import { expandGlob } from "https://deno.land/std@0.205.0/fs/mod.ts"
 import * as JSONC from "https://deno.land/std@0.205.0/jsonc/mod.ts"
-import { expect } from "https://esm.sh/chai@4.3.10?pin=v133"
+import chai from "https://esm.sh/chai@4.3.10?pin=v133"
+import chaiAsPromised from "https://esm.sh/chai-as-promised@7.1.1?pin=v133"
+const { expect } = chai.use(chaiAsPromised)
 
 for await (const { path, name: _name } of expandGlob("tests/*.jsonc")) {
   const name = _name.replace(".jsonc", "").replaceAll("_", " ")
@@ -36,6 +38,39 @@ Deno.test("deno task make: print tasks", async () => {
   expect(code).to.equal(0)
 })
 
+Deno.test("deno task make: args", async () => {
+  const stdio = [] as string[]
+  const { code } = await make({
+    task: "make:args",
+    argv: ["🦕"],
+    config: "tests/deno_make.jsonc",
+    log: (message) => stdio.push(message),
+    stdio: "piped",
+    exit: false,
+  })
+  expect(stdio.join("\n")).to.include("🦕").and.to.include("🦖")
+  expect(code).to.equal(0)
+})
+
+Deno.test("deno task make: missing args required throw", async () => {
+  await expect(make({ task: "make:args", argv: [], config: "tests/deno_make.jsonc", stdio: "null", exit: false })).to.be
+    .rejectedWith(Error, /missing argument/i)
+})
+
+Deno.test("deno task make: flags", async () => {
+  const stdio = [] as string[]
+  const { code } = await make({
+    task: "make:flags",
+    argv: ["--foo", "🦕"],
+    config: "tests/deno_make.jsonc",
+    log: (message) => stdio.push(message),
+    stdio: "piped",
+    exit: false,
+  })
+  expect(stdio.join("\n")).to.include("🦕").and.to.include("🦖")
+  expect(code).to.equal(0)
+})
+
 Deno.test("deno task make: exit code", async () => {
   const { exit } = Deno
   try {

tests/deno_make.jsonc

@@ -20,6 +20,35 @@
         "TEST_INHERIT": true
       }
     },
+    "make:args": {
+      "task": "echo '$<foo> / $<bar>'",
+      "cwd": "tests",
+      "args": [
+        {
+          "alias": "foo",
+          "required": true
+        },
+        {
+          "alias": "bar",
+          "default": "🦖"
+        },
+        {
+          "alias": "baz"
+        }
+      ]
+    },
+    "make:flags": {
+      "task": "echo '$<foo> / $<bar>'",
+      "cwd": "tests",
+      "flags": {
+        "foo": {
+        },
+        "bar": {
+          "alias": "b",
+          "default": "🦖"
+        }
+      }
+    },
     "make:multiline": {
       "task": ["deno help"],
       "cwd": "tests",