feat: add MONGOMS_DISABLE_POSTINSTALL env variable for disabling binary download on package install

* fix: Remove latest verion from postinstall.js (#84)

* feat: add MONGOMS_DOWNLOAD_ON_POSTINSTALL env variable

* fix: rename disable postinstall env vriable (#84)

Author: ChronicusUA

README.md

@@ -76,6 +76,7 @@ MONGOMS_ARCH=x64
 MONGOMS_VERSION=3
 MONGOMS_DEBUG=1 # also available case-insensitive values: "on" "yes" "true"
 MONGOMS_DOWNLOAD_MIRROR=url # your mirror url to download the mongodb binary
+MONGOMS_DISABLE_POSTINSTALL=1 # if you want to skip download binaries on `npm i` command
 ```
 
 ### Replica Set start:

postinstall.js

@@ -13,6 +13,15 @@ function isModuleExists(name) {
   catch(e) { return false }
 }
 
+const skipDownload = typeof process.env.MONGOMS_DISABLE_POSTINSTALL === 'string'
+  ? ['1', 'on', 'yes', 'true'].indexOf(process.env.MONGOMS_DISABLE_POSTINSTALL.toLowerCase()) !== -1
+  : false;
+
+if (skipDownload) {
+  console.log("Download is skipped by MONGOMS_DISABLE_POSTINSTALL variable");
+  process.exit(0);
+}
+
 if (isModuleExists('./lib/util/MongoBinary')) {
   const MongoBinary = require('./lib/util/MongoBinary').default;