Use mamba instead of conda

conda installs an awfully old nodejs version, mamba does not have this
issue

Signed-off-by: martinRenou <[email protected]>

Author: martinRenou

.github/workflows/main.yml

@@ -15,29 +15,32 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest]
         python-version: [3.6, 3.7, 3.8]
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Setup conda
-      uses: s-weigand/setup-conda@v1
+      uses: goanpeca/setup-miniconda@v1
       with:
-        auto-update-conda: true
-        update-conda: true
-        conda-channels: conda-forge
+        mamba-version: "*"
+        channels: conda-forge
 
-    - name: Conda install dependencies
-      run: conda install python=${{ matrix.python-version }} pip nodejs ipywidgets jupyter jupyterlab pillow flake8
+    - name: Mamba install dependencies
+      shell: bash -l {0}
+      run: mamba install python=${{ matrix.python-version }} pip nodejs ipywidgets jupyter jupyterlab pillow numpy flake8
 
     - name: Install ipycanvas
+      shell: bash -l {0}
       run: pip install -e .
 
     - name: Install labextension (Only on Ubuntu for build speed)
       if: matrix.os == 'ubuntu-latest'
+      shell: bash -l {0}
       run: jupyter labextension install .
 
     - name: Test flake8
+      shell: bash -l {0}
       run: flake8 ipycanvas --ignore=E501

README.md

@@ -4,7 +4,6 @@
 
 [![Documentation](http://readthedocs.org/projects/ipycanvas/badge/?version=latest)](https://ipycanvas.readthedocs.io/en/latest/?badge=latest)
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/martinRenou/ipycanvas/stable?filepath=examples)
-[![Build Status](https://travis-ci.org/martinRenou/ipycanvas.svg?branch=master)](https://travis-ci.org/martinRenou/ipycanvas)
 [![Downloads](https://pepy.tech/badge/ipycanvas)](https://pepy.tech/project/ipycanvas)
 
 ipycanvas is a lightweight, fast and stable library exposing the [browser's Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API) to IPython.

package.json

@@ -34,7 +34,7 @@
     "build:labextension": "npm run clean:labextension && mkdirp ipycanvas/labextension && cd ipycanvas/labextension && npm pack ../..",
     "build:lib": "tsc",
     "build:nbextension": "webpack -p",
-    "build:all": "npm run build:labextension && npm run build:nbextension",
+    "build:all": "npm run build:lib && npm run build:labextension && npm run build:nbextension",
     "clean": "npm run clean:lib && npm run clean:nbextension",
     "clean:lib": "rimraf lib",
     "clean:labextension": "rimraf ipycanvas/labextension",