Add ci stuff (#10)

* feat(Actions): add CI workflow

* feat(Actions): added PR comment after CI finishes

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: CI
+
+on: [ push, pull_request ]
+
+jobs:
+  ci:
+    runs-on: [ self-hosted, Windows ]
+    name: CI
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Check CMake version
+        run: cmake --version
+
+      - name: Setup MSVC environment
+        uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: amd64
+
+      - name: Generate CMake project
+        run: cmake -D CMAKE_BUILD_TYPE=Release -S. -Bbuild -G Ninja
+
+      - name: Build 64bit release DLL
+        run: cmake --build ./build --config Release --target NewBase --
+
+      - name: Check if DLL got built
+        run: if (-Not (Test-Path -path "build/NewBase.dll")) {throw 1}
+
+      - name: Rename DLL to NewBase-dev-{GITHUB_SHA}.dll
+        run: |
+          del NewBase-dev-*.dll
+          ren NewBase.dll NewBase-dev-${{github.sha}}.dll
+        working-directory: build/
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: binary
+          path: build/NewBase-dev-*.dll

.github/workflows/pr-comment.yml

@@ -0,0 +1,62 @@
+name: Comment on pull request
+on:
+  workflow_run:
+    workflows: ['CI']
+    types: [completed]
+jobs:
+  pr_comment:
+    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get the PR number
+        run: |
+          # Query the issue search API to get the PR associated with it
+          PR_RAW=$(curl 'https://api.github.com/search/issues?q=${{ github.event.workflow_run.head_commit.id }}')
+          # Get the event number from the search results, which will be the PR number
+          # Filter by PRs only in this repository, as a PR with an identical head commit may be made in another repository (e.g. a fork)
+          # Assume the 0th index in the array of found PRs is the correct one (it seems to usually be the latest one)
+          PR_NUM=$(echo $PR_RAW | jq '.items | map(select(.repository_url=="https://api.github.com/repos/${{ github.repository }}")) | .[0].number')
+          echo "PR_NUM=${PR_NUM}" >> $GITHUB_ENV
+      - uses: actions/github-script@v6
+        with:
+          # This snippet is public-domain, taken from
+          # https://github.com/oprypin/nightly.link/blob/master/.github/workflows/pr-comment.yml
+          # and modified to allow comments on external PRs (oprypin/nightly.link/pull/38 & #issuecomment-1200506721)
+          script: |
+            async function upsertComment(owner, repo, issue_number, purpose, body) {
+              const {data: comments} = await github.rest.issues.listComments(
+                {owner, repo, issue_number});
+
+              const marker = `<!-- bot: ${purpose} -->`;
+              body = marker + "\n" + body;
+
+              const existing = comments.filter((c) => c.body.includes(marker));
+              if (existing.length > 0) {
+                const last = existing[existing.length - 1];
+                core.info(`Updating comment ${last.id}`);
+                await github.rest.issues.updateComment({
+                  owner, repo,
+                  body,
+                  comment_id: last.id,
+                });
+              } else {
+                core.info(`Creating a comment in issue / PR #${issue_number}`);
+                await github.rest.issues.createComment({issue_number, body, owner, repo});
+              }
+            }
+
+            const {owner, repo} = context.repo;
+            const run_id = '${{github.event.workflow_run.id}}';
+
+            const artifacts = await github.paginate(
+              github.rest.actions.listWorkflowRunArtifacts, {owner, repo, run_id});
+            if (!artifacts.length) {
+              return core.error(`No artifacts found`);
+            }
+            let body = `Download the artifacts for this pull request:\n`;
+            for (const art of artifacts) {
+              body += `\n* [${art.name}.zip](https://nightly.link/${owner}/${repo}/actions/artifacts/${art.id}.zip)`;
+            }
+
+            core.info("Review thread message body:", body);
+            await upsertComment(owner, repo, ${{ env.PR_NUM }}, "nightly-link", body);