Release bot - voting

This adds votes counting into release bot, based on BP005. It will count thumbs
up or thumbs down in release discussion and if every maintainer will add thumbs
up, the bot will start the release. If the release is not ready yet, it will
notify maintainers to do their votes.

Reference: #7
Signed-off-by: Jan Richter <[email protected]>

.github/workflows/release-bot.yml

@@ -5,6 +5,7 @@ on:
   workflow_dispatch: null
 jobs:
   release-vote:
+    permissions: write-all
     name: release vote
     runs-on: ubuntu-20.04
     steps:
@@ -55,20 +56,21 @@ jobs:
                           usr_names+=("@$(sed -n '/github_usr_name:[[:space:]]*\([^[:space:]]\+\)/{s/github_usr_name:[[:space:]]*//;s/[[:space:]]//g;p;q;}' $metadata_file)")
                   done
           done
-
           echo 'USR_NAMES='$(echo "${usr_names[@]}" | tr ' ' '\n' | sort -u) >> $GITHUB_ENV
+          echo 'TIME_FOR_RELEASE=0' >> $GITHUB_ENV
       - name: Create release discussion
         if: ${{ env.TIME_FOR_VOTE == 1 }}
         env:
           GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
         run: |
-          if [[ "${{ env.DISCUSSION_ID }}" = "null" ]]; then
+          if [[ ${{ env.DISCUSSION_ID }} = "null" ]]; then
             gh api graphql -f query='mutation {
               createDiscussion(input: {
                 repositoryId: ${{ vars.REPOSITORY_ID }},
                 categoryId: ${{ vars.CATEGORY_ID }},
                 body: "Hello all,
-                      Autils reached threshold of ${{ vars.RELEASE_THRESHOLD }} commits from the latest release and now we have ${{ env.COMMITS_NUMBER }} commits from the latest release. Therefore, it is time to vote if new release is needed. Please use :+1:  or :-1: for this discussion to vote.
+                      Autils reached threshold of ${{ vars.RELEASE_THRESHOLD }} commits from the latest release and now we have ${{ env.COMMITS_NUMBER }} commits from the latest release. Therefore, it is
+                      time to vote if new release is needed. Please use :+1: for this discussion if you agree with the release. The release will be run when all maintainers will :+1:.
                       Thank you.\n\nThis vote is meat only for maintainers: ${{ env.USR_NAMES }}",
                 title: "Release decision"}) {
 
@@ -79,17 +81,58 @@ jobs:
             }
             '
           fi
+      - name: Count votes
+        if: ${{ env.TIME_FOR_VOTE == 1 }}
+        env:
+          GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
+        run: |
+          if [[ ${{ env.DISCUSSION_ID }} != "null" ]]; then
+            readarray -t usr_names <<< "${{ env.USR_NAMES }}"
+            thumbs_up_users=$(gh api graphql -f query='{
+                       node(id: ${{ env.DISCUSSION_ID }}) {
+                        ... on Discussion {
+                          reactions(content:THUMBS_UP, first:50) {
+                            nodes{
+                              createdAt
+                              user {
+                                login
+                              }
+                            }
+                          }
+                        }
+                      }
+            }' | jq .data.node.reactions.nodes[].user.login | sort | tr -d '"')
+            missing_votes=($(comm -23 <(echo "${usr_names[@]}" | tr -d '@') <(echo "${thumbs_up_users[@]}")))
+            if [ "${#missing_votes[@]}" -eq 0 ]; then
+                gh api graphql -f query='mutation {
+                  closeDiscussion(input: {
+                    discussionId: ${{ env.DISCUSSION_ID }}}) {
+
+                    discussion {
+                      id
+                    }
+                  }
+                }'
+                echo "It is time for release."
+                echo 'TIME_FOR_RELEASE=1' >> $GITHUB_ENV
+            else
+                echo "We don't have enought votes."
+            fi
+
+            echo 'MISSING_VOTES_NAMES='$(printf '@%s' "${missing_votes[@]}" | tr ' ' '\n' | sort -u) >> $GITHUB_ENV
+          fi
       - name: Add comment to discussion
         if: ${{ env.TIME_FOR_VOTE == 1 }}
         env:
           GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
         run: |
-          if [[ "${{ env.DISCUSSION_ID }}" != "null" ]]; then
+          if [[ ${{ env.DISCUSSION_ID }} != "null" && ${{ env.TIME_FOR_RELEASE }} == 0 ]]; then
               gh api graphql -f query='mutation {
                 addDiscussionComment(input: {
                   discussionId: ${{ env.DISCUSSION_ID }},
-                  body: "This is a kindly reminder of ongoing release voting. Please use :+1:  or :-1:  for this discussion to vote.
-                      Thank you.\n\nNew commits from the beginning of the voting: ${{ env.NEW_COMMITS }}\nThis vote is meat only for maintainers: ${{ env.USR_NAMES }}"}) {
+                  body: "This is a kindly reminder of ongoing release voting. Please use :+1:  or for this discussion to vote.
+                      Thank you.\n\nNew commits from the beginning of the voting: ${{ env.NEW_COMMITS }}
+                      The maintainers who have not voted yet: ${{ env.MISSING_VOTES_NAMES }}"}) {
 
                   comment {
                     id
@@ -98,3 +141,9 @@ jobs:
               }
               '
           fi
+      - name: Release
+        if: ${{ env.TIME_FOR_RELEASE == 1 }}
+        env:
+          GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
+        run: |
+          echo 'RELEASE'