kindness 0.5.0

Methods for returning random elements from an iterator.
Documentation 
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name: Publish Crate

on:
  push:
    branches:
      - main
    paths:
      - Cargo.toml
  repository_dispatch:
    types: publish
  workflow_dispatch:

# After you create the GitHub repo, head over to `crates.io` and create
# an API Token, or use the link below:
#   <https://crates.io/settings/tokens>
#
# Once you have an API token, add it as a Repository Secret (CARGO_TOKEN)
# under the GitHub repo, so that it can be used by GitHub Actions to deploy
# to `crates.io` whenever a new tag is pushed to GitHub:
#   <https://github.com/wainwrightmark/kindness/settings/secrets/actions/new>
jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - name: Check out repository
        uses: actions/checkout@v2      
      - name: Stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
      - name: Set variables
        id: vars
        run: |

          NAME=$(cargo metadata -q --no-deps | jq -r '.packages[0].name')
          VERSION=$(cargo metadata -q --no-deps | jq -r '.packages[0].version')
          echo "::set-output name=name::$NAME"
          echo "::set-output name=version::v$VERSION"
          echo "Found $NAME-$VERSION"

      - name: Lookup ${{ steps.vars.outputs.version }} tag
        id: need-release
        uses: actions/github-script@v3
        with:
          script: |

            const version = '${{ steps.vars.outputs.version }}'
            const tags = await github.repos.listTags(context.repo)
            if (tags.data.some(tag => tag.name == version)) {
                core.info(`Found ${version} tag -- will proceed with publishing`)
                return true
            }
            core.info(`Found no ${version} tag -- will skip publish step`)
            return false

      # The result from above is JSON-encoded, meaning that we
      # end up with the string 'true', not the Boolean true.
      - if: steps.need-release.outputs.result == 'true'
        name: Publish crate to crates.io        
        run: |

          echo "Publishing ${{ steps.vars.outputs.name }}-${{ steps.vars.outputs.version }}"
          cargo publish --token ${{ secrets.CARGO_TOKEN }}