add solc/download and do not include the soljson file in source

.gitignore

@@ -1 +1 @@
-.solc-cache
+soljson.js

deps.ts

@@ -2,3 +2,4 @@ export { createRequire } from 'https://deno.land/[email protected]/node/module.ts'
 export { existsSync } from 'https://deno.land/[email protected]/node/fs.ts'
 export { default as semver } from 'https://esm.sh/semver?no-check'
 export { keccak256 } from 'https://esm.sh/js-sha3'
+export { readerFromStreamReader, copy } from 'https://deno.land/[email protected]/io/mod.ts'

download.ts

@@ -0,0 +1,23 @@
+import { readerFromStreamReader, copy } from './deps.ts'
+
+export const download = async (version?: string) => {
+  console.log(`Fetching releases...`)
+  const { releases, latestRelease } = await fetch('https://solc-bin.ethereum.org/bin/list.json').then((res) =>
+    res.json()
+  )
+
+  const jsFile = releases[version || latestRelease]
+
+  console.log(`Downloading soljson from https://solc-bin.ethereum.org/bin/${jsFile}...`)
+
+  const res = await fetch(`https://solc-bin.ethereum.org/bin/${jsFile}`)
+
+  const rdr = res.body?.getReader()
+
+  if (rdr) {
+    const r = readerFromStreamReader(rdr)
+    const f = await Deno.open('./soljson.js', { create: true, write: true })
+    await copy(r, f)
+    f.close()
+  }
+}

egg.json

@@ -8,7 +8,11 @@
   "releaseType": null,
   "unstable": false,
   "unlisted": false,
-  "files": ["README.md", "*.ts", "LICENSE"],
+  "files": [
+    "README.md",
+    "*.ts",
+    "LICENSE"
+  ],
   "ignore": [],
   "checkFormat": false,
   "checkTests": false,

mod.ts

@@ -1,4 +1,24 @@
 import { setupMethods } from './wrapper.ts'
-import { soljson } from './module.ts'
+import { createRequire } from './deps.ts'
+import { download } from './download.ts'
+import process from 'https://esm.sh/process/browser.js'
+import { exists } from './utils.ts'
 
-export const solc = setupMethods(soljson)
+const require = createRequire(import.meta.url)
+
+const __filename = new URL('', import.meta.url).pathname
+const __dirname = new URL('.', import.meta.url).pathname
+
+// @ts-ignore Node.js
+globalThis.__dirname = __dirname
+// @ts-ignore Node.js
+globalThis.__filename = __filename
+
+process.versions = { node: '12.4.0' }
+
+// @ts-ignore Node.js
+globalThis.process = process
+
+if (!(await exists('./soljson.js'))) await download()
+
+export const solc = setupMethods(require('./soljson.js'))

translate.ts

@@ -57,13 +57,9 @@ function translateErrors(
 }
 
 function translateGasEstimates(gasEstimates: null | number | Record<string, any>) {
-  if (gasEstimates === null) {
-    return 'infinite'
-  }
+  if (gasEstimates === null) return 'infinite'
 
-  if (typeof gasEstimates === 'number') {
-    return gasEstimates.toString()
-  }
+  if (typeof gasEstimates === 'number') return gasEstimates.toString()
 
   const gasEstimatesTranslated: Record<string, any> = {}
   for (const func in gasEstimates) {

utils.ts

@@ -1,5 +1,19 @@
 import * as _assert from 'https://deno.land/x/[email protected]/node/assert.ts'
 
-export const assert = (actual: unknown, message: string) => {
-  return _assert.strict(actual, message)
+export const assert = (actual: unknown, message: string) => _assert.strict(actual, message)
+
+export const exists = async (filename: string): Promise<boolean> => {
+  try {
+    await Deno.stat(filename)
+    // successful, file or directory must exist
+    return true
+  } catch (error) {
+    if (error instanceof Deno.errors.NotFound) {
+      // file or directory does not exist
+      return false
+    } else {
+      // unexpected error, maybe permissions, pass it along
+      throw error
+    }
+  }
 }