feat: can get swagger file from url

fix #4

package.json

@@ -47,7 +47,7 @@
     "eslint": "^7.20.0",
     "husky": "^5.1.1",
     "is-ci": "^2.0.0",
-    "keq": "^1.2.1",
+    "keq": "^1.2.2",
     "lint-staged": "^10.5.4",
     "mili": "^3.9.3",
     "nyc": "^15.1.0",
@@ -74,7 +74,8 @@
     "openapi-types": "^8.0.0",
     "ramda": "^0.27.1",
     "semver": "^7.3.5",
-    "ts-custom-error": "^3.2.0"
+    "ts-custom-error": "^3.2.0",
+    "valid-url": "^1.0.9"
   },
   "version": "1.0.3",
   "directories": {

src/compile.ts

@@ -3,16 +3,33 @@ import * as yaml from 'js-yaml'
 import * as path from 'path'
 import { genModuleCode } from './gencode'
 import { Options } from './interface'
+import validUrl from 'valid-url'
+import { request } from 'keq'
 
 
 export async function compile(moduleName: string, filepath: string, options: Options): Promise<void> {
-  const fileext = path.extname(filepath)
-  const content = await fs.readFile(filepath, 'utf8')
-  if (['.yml', '.yaml'].includes(fileext)) {
-    await genModuleCode(moduleName, yaml.load(content), options)
-  } else if (fileext === '.json') {
-    await genModuleCode(moduleName, JSON.parse(content), options)
+  if (validUrl.isUri(filepath)) {
+    const res = await request
+      .get(filepath)
+      .option('resolveWithFullResponse')
+
+    let content = await res.text()
+    try {
+      content = JSON.parse(content)
+    } catch (e) {
+      throw new Error(`The swagger file get from url isn't json: ${filepath}`)
+    }
+
+    await genModuleCode(moduleName, content, options)
   } else {
-    throw new Error(`File ${fileext} not support.`)
+    const fileext = path.extname(filepath)
+    const content = await fs.readFile(filepath, 'utf8')
+    if (['.yml', '.yaml'].includes(fileext)) {
+      await genModuleCode(moduleName, yaml.load(content), options)
+    } else if (fileext === '.json') {
+      await genModuleCode(moduleName, JSON.parse(content), options)
+    } else {
+      throw new Error(`File ${fileext} not support.`)
+    }
   }
 }