Merge pull request #1937 from plotly/dcc-temp-packages

base to install temporary packages e.g. plotly.js-dist-min in dcc

Author: alexcjohnson

components/dash-core-components/.eslintignore

@@ -4,6 +4,7 @@ lib/
 lib/bundle.js*
 coverage/
 node_modules/
+packages/
 .npm
 vv/
 venv/

components/dash-core-components/CONTRIBUTING.md

@@ -31,9 +31,9 @@ you've pulled from upstream otherwise you may be running with an out of date
 `bundle.js`. See the instructions for building `bundle.js` in the [Testing
 Locally](README.md#testing-locally) section of README.md.
 
-## Updating Plotly.js
+## Updating official version of Plotly.js
 
-1. Update the version of `plotly.js` in package.json. Always use an exact version without "^" or "~"
+1. Update the version of `plotly.js-dist-min` in package.json. Always use an exact version without "^" or "~"
 2. Run `npm install` followed by `npm run build`, the Plotly.js artifact will be copied and bundled over as required
 4. Update `CHANGELOG.md` with links to the releases and a description of the changes. The message should state (see the existing `CHANGELOG.md` for examples):
     * If you're only bumping the patch level, the heading is "Fixed" and the text starts "Patched plotly.js". Otherwise the heading is "Updated" and the text starts "Upgraded plotly.js"
@@ -42,6 +42,11 @@ Locally](README.md#testing-locally) section of README.md.
     * All patch versions included, with links to their release pages and a note that these fix bugs
 5. When bumping the dcc version, a plotly.js patch/minor/major constitutes a dcc patch/minor/major respectively as well.
 
+### Using a temporary `plotly.js-dist-min` package (or other dependencies)
+
+> During integrated development of new features or bug fixes in plotly.js and dash, it may be required to install a temporary plotly.js-dist-min package (or other packages) including proposed changes. To do so, please place the `.tgz` file in `packages/` folder then `npm install` the file.
+
+
 ## Financial Contributions
 
 If your company wishes to sponsor development of open source dash components, please [get in touch][].

components/dash-core-components/packages/README.md

@@ -0,0 +1 @@
+Folder to place temporary modules e.g. plotly.js-dist-min in .tgz format

components/dash-table/cspell.json

@@ -3,6 +3,7 @@
     "ignorePaths": [
         "**/package.json",
         "**/package-lock.json",
+        "**/packages/**",
         "**/node_modules/**",
         "**/vscode-extension/**",
         "**/.git/**",