Merge pull request #10 from karthik2804/add_knitwit_update_readme

Add knitwit update readme

Author: karthik2804

package-lock.json

@@ -5,7 +5,8 @@
   "main": "lib/index.js",
   "scripts": {
     "test": "(cd tests && ./test.sh)",
-    "build": "tsc"
+    "build": "tsc",
+    "postinstall": "knitwit-postinstall"
   },
   "repository": {
     "type": "git",
@@ -26,6 +27,13 @@
     "buffer": "^6.0.3",
     "path-browserify": "^1.0.1",
     "process": "^0.11.10",
-    "webpack": "^5.92.0"
+    "webpack": "^5.92.0",
+    "@fermyon/knitwit": "https://github.com/fermyon/knitwit"
+  },
+  "config": {
+    "knitwit": {
+      "witPath": "../../wit",
+      "world": "js-wasi-ext"
+    }
   }
 }

package.json

@@ -43,7 +43,7 @@ console.log(process.env["PET"]);
 
 ## Supported APIs
 
-* `process`: certain methods are no-ops and few throw exceptions. For detailed list refer to the [upstream library](https://github.com/defunctzombie/node-process/blob/master/browser.js). 
-* `fs`: Limited to `readFileSync`
+* `process`: certain methods are no-ops and few throw exceptions. For detailed list refer to the [upstream library](https://github.com/defunctzombie/node-process/blob/master/browser.js). `process.env` is only populated when inside the handler function, when outside, it returns an empty object (i.e) `{}`
+* `fs`: Limited to `readFileSync` and `readdirSync`
 
 

readme.md

@@ -0,0 +1,7 @@
+package wasi:cli@0.2.0;
+
+world command {
+  include imports;
+
+  export run;
+}

src/os.ts

@@ -0,0 +1,18 @@
+interface environment {
+  /// Get the POSIX-style environment variables.
+  ///
+  /// Each environment variable is provided as a pair of string variable names
+  /// and string value.
+  ///
+  /// Morally, these are a value import, but until value imports are available
+  /// in the component model, this import function should return the same
+  /// values each time it is called.
+  get-environment: func() -> list<tuple<string, string>>;
+
+  /// Get the POSIX-style arguments to the program.
+  get-arguments: func() -> list<string>;
+
+  /// Return a path that programs should use as their initial current working
+  /// directory, interpreting `.` as shorthand for this.
+  initial-cwd: func() -> option<string>;
+}

wit/deps/cli/command.wit

@@ -0,0 +1,4 @@
+interface exit {
+  /// Exit the current instance and any linked instances.
+  exit: func(status: result);
+}

wit/deps/cli/environment.wit

@@ -0,0 +1,20 @@
+package wasi:cli@0.2.0;
+
+world imports {
+  include wasi:clocks/imports@0.2.0;
+  include wasi:filesystem/imports@0.2.0;
+  include wasi:sockets/imports@0.2.0;
+  include wasi:random/imports@0.2.0;
+  include wasi:io/imports@0.2.0;
+
+  import environment;
+  import exit;
+  import stdin;
+  import stdout;
+  import stderr;
+  import terminal-input;
+  import terminal-output;
+  import terminal-stdin;
+  import terminal-stdout;
+  import terminal-stderr;
+}

wit/deps/cli/exit.wit

@@ -0,0 +1,4 @@
+interface run {
+  /// Run the program.
+  run: func() -> result;
+}

wit/deps/cli/imports.wit

@@ -0,0 +1,17 @@
+interface stdin {
+  use wasi:io/streams@0.2.0.{input-stream};
+
+  get-stdin: func() -> input-stream;
+}
+
+interface stdout {
+  use wasi:io/streams@0.2.0.{output-stream};
+
+  get-stdout: func() -> output-stream;
+}
+
+interface stderr {
+  use wasi:io/streams@0.2.0.{output-stream};
+
+  get-stderr: func() -> output-stream;
+}