PR: Allow null channels in file to not crash setup.

.github/workflows/example-9.yml

@@ -0,0 +1,39 @@
+name: "Example 9: Empty Channels in file dont crash setup"
+
+on:
+  pull_request:
+    branches:
+      - "*"
+  push:
+    branches:
+      - "master"
+  schedule:
+    # Note that cronjobs run on master/main by default
+    - cron: "0 0 * * *"
+
+jobs:
+  example-9:
+    # prevent cronjobs from running on forks
+    if:
+      (github.event_name == 'schedule' && github.repository ==
+      'conda-incubator/setup-miniconda') || (github.event_name != 'schedule')
+    name: Ex9 (${{ matrix.python-version }}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        python-version: ["3.7", "2.7"]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ./
+        id: setup-miniconda
+        continue-on-error: true
+        with:
+          auto-update-conda: true
+          python-version: ${{ matrix.python-version }}
+          environment-file: etc/example-empty-channels-environment.yml
+      - run: |
+          conda info
+          conda list
+          printenv | sort

dist/setup/index.js

@@ -29902,7 +29902,7 @@ module.exports.safeLoad    = safeLoad;
 /* 771 */
 /***/ (function(module) {
 
-module.exports = {"_args":[["[email protected]","/home/weg/projects/actions/setup-miniconda"]],"_from":"[email protected]","_id":"[email protected]","_inBundle":false,"_integrity":"sha512-0td5ijfUPuubwLUu0OBoe98gZj8C/AA+RW3v67GPlGOrvxWjZmBXiBCRU+I8VEiNyJzjth40POfHiz2RB3gImA==","_location":"/cheerio","_phantomChildren":{},"_requested":{"type":"version","registry":true,"raw":"[email protected]","name":"cheerio","escapedName":"cheerio","rawSpec":"1.0.0-rc.3","saveSpec":null,"fetchSpec":"1.0.0-rc.3"},"_requiredBy":["/get-hrefs"],"_resolved":"https://registry.npmjs.org/cheerio/-/cheerio-1.0.0-rc.3.tgz","_spec":"1.0.0-rc.3","_where":"/home/weg/projects/actions/setup-miniconda","author":{"name":"Matt Mueller","email":"[email protected]","url":"mat.io"},"bugs":{"url":"https://github.com/cheeriojs/cheerio/issues"},"dependencies":{"css-select":"~1.2.0","dom-serializer":"~0.1.1","entities":"~1.1.1","htmlparser2":"^3.9.1","lodash":"^4.15.0","parse5":"^3.0.1"},"description":"Tiny, fast, and elegant implementation of core jQuery designed specifically for the server","devDependencies":{"benchmark":"^2.1.0","coveralls":"^2.11.9","expect.js":"~0.3.1","istanbul":"^0.4.3","jquery":"^3.0.0","jsdom":"^9.2.1","jshint":"^2.9.2","mocha":"^3.1.2","xyz":"~1.1.0"},"engines":{"node":">= 0.6"},"files":["index.js","lib"],"homepage":"https://github.com/cheeriojs/cheerio#readme","keywords":["htmlparser","jquery","selector","scraper","parser","html"],"license":"MIT","main":"./index.js","name":"cheerio","repository":{"type":"git","url":"git://github.com/cheeriojs/cheerio.git"},"scripts":{"test":"make test"},"version":"1.0.0-rc.3"};
+module.exports = {"_args":[["[email protected]","/Users/goanpeca/Dropbox (Personal)/develop/conda-incubator/setup-miniconda"]],"_from":"[email protected]","_id":"[email protected]","_inBundle":false,"_integrity":"sha512-0td5ijfUPuubwLUu0OBoe98gZj8C/AA+RW3v67GPlGOrvxWjZmBXiBCRU+I8VEiNyJzjth40POfHiz2RB3gImA==","_location":"/cheerio","_phantomChildren":{},"_requested":{"type":"version","registry":true,"raw":"[email protected]","name":"cheerio","escapedName":"cheerio","rawSpec":"1.0.0-rc.3","saveSpec":null,"fetchSpec":"1.0.0-rc.3"},"_requiredBy":["/get-hrefs"],"_resolved":"https://registry.npmjs.org/cheerio/-/cheerio-1.0.0-rc.3.tgz","_spec":"1.0.0-rc.3","_where":"/Users/goanpeca/Dropbox (Personal)/develop/conda-incubator/setup-miniconda","author":{"name":"Matt Mueller","email":"[email protected]","url":"mat.io"},"bugs":{"url":"https://github.com/cheeriojs/cheerio/issues"},"dependencies":{"css-select":"~1.2.0","dom-serializer":"~0.1.1","entities":"~1.1.1","htmlparser2":"^3.9.1","lodash":"^4.15.0","parse5":"^3.0.1"},"description":"Tiny, fast, and elegant implementation of core jQuery designed specifically for the server","devDependencies":{"benchmark":"^2.1.0","coveralls":"^2.11.9","expect.js":"~0.3.1","istanbul":"^0.4.3","jquery":"^3.0.0","jsdom":"^9.2.1","jshint":"^2.9.2","mocha":"^3.1.2","xyz":"~1.1.0"},"engines":{"node":">= 0.6"},"files":["index.js","lib"],"homepage":"https://github.com/cheeriojs/cheerio#readme","keywords":["htmlparser","jquery","selector","scraper","parser","html"],"license":"MIT","main":"./index.js","name":"cheerio","repository":{"type":"git","url":"git://github.com/cheeriojs/cheerio.git"},"scripts":{"test":"make test"},"version":"1.0.0-rc.3"};
 
 /***/ }),
 /* 772 */

etc/example-empty-channels-environment.yml

@@ -0,0 +1,7 @@
+name: empty-channels-environment
+
+channels:
+
+dependencies:
+  - black
+  - anaconda-client