Merges time-travel to master with all migrations

.editorconfig

@@ -14,3 +14,9 @@ indent_style=space
 indent_size=2
 tab_width=8
 end_of_line=lf
+
+[*.sh]
+indent_style=space
+indent_size=2
+tab_width=8
+end_of_line=lf

.github/ISSUE_TEMPLATE/release.md

@@ -0,0 +1,9 @@
+---
+title: Release failure for {{ ref }}
+---
+
+Pipeline for release {{ ref }} failed. Please investigate.
+
+If the pipeline has failed before pushing to crates.io, delete the release tag
+and fix the release as necessary, retagging after complete. If the pipeline has
+failed after pushing to crates.io, create a new tag incrementing the version.

.github/workflows/auto-label-prs.yml

@@ -0,0 +1,21 @@
+name: Label PRs
+on:
+  pull_request:
+    types: [opened,ready_for_review]
+
+jobs:
+  label-new-prs:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Label drafts
+        uses: andymckay/labeler@master
+        if: github.event.pull_request.draft == true
+        with:
+          add-labels: 'A3-inprogress'
+          remove-labels: 'A0-pleasereview'
+      - name: Label PRs
+        uses: andymckay/labeler@master
+        if: github.event.pull_request.draft == false && ! contains(github.event.pull_request.labels.*.name, 'A2-insubstantial')
+        with:
+          add-labels: 'A0-pleasereview'
+          remove-labels: 'A3-inprogress'

.github/workflows/check-gitlab-pipeline.yml

@@ -0,0 +1,30 @@
+# A github action to track the status of the gitlab pipeline for tagged
+# releases, and cancel the release/create a new issue if it fails
+
+name: Monitor gitlab pipeline status
+
+on:
+  push:
+    tags:
+      - v*
+      - ci-release-*
+
+jobs:
+  monitor:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Monitor pipeline
+        run: env; ./.maintain/github/check_gitlab_pipeline.sh
+        id: monitor_pipeline
+        env:
+          TAGGER: ${{ github.event.pusher.name }}
+      - name: Create Issue
+        if: failure()
+        uses: JasonEtco/create-an-issue@v2
+        with:
+          filename: .github/ISSUE_TEMPLATE/release.md
+          assignees: ${{ github.event.pusher.name }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/polkadot-companion-labels.yml

@@ -0,0 +1,31 @@
+name: Check Polkadot Companion and Label
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  check_status:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Monitor the status of the gitlab-check-companion-build job
+        uses: s3krit/await-status-action@v1.0.1
+        id: 'check-companion-status'
+        with:
+          authToken: ${{ secrets.GITHUB_TOKEN }}
+          ref: ${{ github.event.pull_request.head.sha }}
+          contexts: 'continuous-integration/gitlab-check-polkadot-companion-build'
+          timeout: 1800
+          notPresentTimeout: 3600 # It can take quite a while before the job starts...
+          failedStates: failure
+          interruptedStates: error # Error = job was probably cancelled. We don't want to label the PR in that case
+      - name: Label success
+        uses: andymckay/labeler@master
+        if: steps.check-companion-status.outputs.result == 'success'
+        with:
+          remove-labels: 'A7-needspolkadotpr'
+      - name: Label failure
+        uses: andymckay/labeler@master
+        if: steps.check-companion-status.outputs.result == 'failure'
+        with:
+          add-labels: 'A7-needspolkadotpr'

.github/workflows/trigger-review-pipeline.yml

@@ -0,0 +1,20 @@
+name: Trigger pipeline for review
+
+on:
+  pull_request:
+    types: [ready_for_review]
+
+jobs:
+  trigger:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Trigger pipeline
+        run: |
+          curl -X POST \
+            -F token="$TOKEN" \
+            -F ref="$REF" \
+            https://gitlab.parity.io/api/v4/projects/145/trigger/pipeline
+        env:
+          REF: ${{ github.event.number }}
+          TOKEN: ${{ secrets.GITLAB_TRIGGER_TOKEN }}

.gitignore

@@ -21,3 +21,4 @@ rls*.log
 .local
 **/hfuzz_target/
 **/hfuzz_workspace/
+.cargo/