First stabs at full implementation

.gitea/workflows/publish.yaml

@@ -3,13 +3,9 @@ run-name: ${{ gitea.actor }} is testing out Gitea Actions! 🚀
 on: [push]
 
 jobs:
-  Explore-Gitea-Actions:
+  checkout:
     runs-on: ubuntu-latest
     steps:
-      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
-      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
-      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
-
       # Despite not being present in the QuickStart instructions, this step is necessary in order to install `node`,
       # which is itself required for `actions/checkout`
       # Cannot use `actions/setup-node` because that _itself_ requires `node` (it makes it available to user-code,
@@ -20,9 +16,44 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v4
 
-      - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
-      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
-      - name: List files in the repository
-        run: |
-          ls ${{ gitea.workspace }}
-      - run: echo "🍏 This job's status is ${{ job.status }}."
+  block-posts-containining-tk:
+    depends-on:
+      - checkout
+    runs-on: busybox
+    steps:
+      - run: |
+        # This is necessary because, if `grep ...` doesn't find anything, it will _return_ (not print) a value of 1
+        # (non-zero return codes indicating errors in Unix - since there are many more ways for something to go wrong
+        # than there are for it to go right!), and so the `files=` assignment will also return 1, and the whole operation
+        # will be considered a failure.
+        #
+        # Since a non-zero value is truthy in Linux, we can use the OR operator (`||`) to only execute the second command
+        # if the first one errors out. So, this line can be translated to English as:
+        # "Set the variable `files` to a list of all the files that contain `TK` - unless there aren't any, in which case
+        # set it to `FILES NOT FOUND"
+        files=$(grep -rl 'TK' blog/content/posts || echo "FILES NOT FOUND")
+
+        # We have to filter out (`grep -v`) the "marker" value of `FILES NOT FOUND`, otherwise the no-matches case would
+        # be recorded as having 1 matching file, leading to an error-out below.
+        # (I guess _technically_ there's an edge case in that, if I ever make a blog post titled "FILES NOT FOUND" _which also_
+        # contains the string `TK`, it would slip through this check. But that feels pretty unlikely - not least because spaces
+        # are very rare in my filesystem names - so I'm ok taking that risk)
+        count=$(wc -l <(echo "$files" | grep -v "FILES NOT FOUND") | awk '{print $1}')
+        if [[ "$count" -gt "0" ]]; then
+          echo "Found TK in $count files:"
+          echo $files
+          exit 1 # TODO - and alerting via Telegram!
+        fi
+    
+  build-blog:
+    depends-on:
+      - block-posts-containining-tk
+    runs-on: alpine
+    steps:
+      - run: |
+          apt-get update && apt-get install -y hugo git
+          git submodule init
+          git submodule update --recursive
+          hugo --source blog
+  
+  # TODO - build image, then publish