deploy: import first pass

tools/deploy/import.ts

@@ -0,0 +1,25 @@
+
+import fs from 'fs';
+import vm from 'vm';
+import pathlib from 'path';
+
+export function imp(files: string[], code : string) {
+    const script = new vm.Script(code);
+
+    const results = [];
+    for (const file of files) {
+        const parsed = pathlib.parse(file);
+        const obj = {dir: parsed.dir,
+                     base: parsed.name,
+                     ext: parsed.ext === "" ? null : parsed.ext.slice(1)
+                    };
+        const output = script.runInNewContext({path: obj, ...obj});
+        if (typeof output === 'string') {
+            const dest = pathlib.format({name: output, ext: parsed.ext});
+            results.push({src: file, dst: dest});
+        } else {
+            throw new Error(`result of eval on ${file} not string`);
+        }
+    }
+    return results;
+}

tools/deploy/index.ts

@@ -3,6 +3,33 @@ import program from 'commander';
 import {run} from './lang.js';
 import {find} from './find.js';
 import {link} from './deploy.js';
+import {imp} from './import.js';
+import fs from 'fs';
+
+function collect(value : string, previous : string[]) {
+    return previous.concat([value]);
+}
+
+program
+    .command('import [files...]')
+    .option('-o, --output <dir>', 'Output directory')
+    // TODO: default toID
+    .option('-e, --eval <expr>', 'Expr')
+    .option('-m, --module <mod>', 'Module')
+    .option('-t, --tag <tag>', 'Tag', collect, [])
+    .action(async (files : string[], {eval: expr, module: mod, output: outputDir, tag: tags}) => {
+        let code : string;
+        if (expr !== undefined) {
+            code = expr;
+        } else if (mod !== undefined) {
+            code = fs.readFileSync(mod, 'utf8');
+        } else {
+            throw new Error(`one of -e or -m must be provided`);
+        }
+
+        const result = imp(files, code);
+        link(result, outputDir, 'copy');
+    });
 
 program
     .command('deploy <tag> <outputDir>')