From dc4591fb3e60462091c8bdb9c33915d3f2d2ca84 Mon Sep 17 00:00:00 2001
From: Nubenetes Bot <bot@nubenetes.com>
Date: Fri, 19 Jun 2026 12:14:34 +0200
Subject: [PATCH] feat: cache news_digest.json by date to avoid re-calling
 Gemini on re-runs
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Publisher and weekly digest workflows now restore news_digest.json from
GitHub Actions cache using key news-digest-YYYY-MM-DD. If cache hits
(same-day re-run after publisher failure), the Gemini digest step is
skipped entirely — saving ~20min and Gemini API credits.

Cache is saved immediately after successful generation and expires
automatically after 7 days (GitHub Actions cache policy).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .github/workflows/04.1.agentic_v2_publish.yml | 28 ++++++++++++++++++-
 .github/workflows/09.weekly_digest.yml        | 26 +++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/04.1.agentic_v2_publish.yml b/.github/workflows/04.1.agentic_v2_publish.yml
index f505ea98..49e4188b 100644
--- a/.github/workflows/04.1.agentic_v2_publish.yml
+++ b/.github/workflows/04.1.agentic_v2_publish.yml
@@ -60,7 +60,20 @@ jobs:
       - name: Installation of Dependencies
         run: |
           pip install --no-cache-dir pydantic PyGithub httpx fake-useragent pytz python-dotenv pyyaml tenacity
-          
+
+      - name: Get current date for digest cache key
+        id: digest-date
+        run: echo "date=$(date -u +%Y-%m-%d)" >> $GITHUB_OUTPUT
+
+      - name: Restore News Digest Cache
+        id: cache-digest
+        uses: actions/cache/restore@v5
+        with:
+          path: data/news_digest.json
+          key: news-digest-${{ steps.digest-date.outputs.date }}
+          restore-keys: |
+            news-digest-
+
       - name: Execute Video Portal Generator
         env:
           PYTHONPATH: ${{ github.workspace }}
@@ -87,14 +100,27 @@ jobs:
           python -u -m src.enrichment || echo "Enrichment pipeline skipped (no token or error)"
 
       - name: Generate News Digest
+        if: steps.cache-digest.outputs.cache-hit != 'true'
         env:
           PYTHONPATH: ${{ github.workspace }}
           GEMINI_API_KEY_1: ${{ secrets.GEMINI_API_KEY_1 }}
           GEMINI_API_KEY_2: ${{ secrets.GEMINI_API_KEY_2 }}
         run: |
           python -u -m src.news_digest || echo "News digest generation skipped (no API key or error)"
+
+      - name: Generate RSS Feed
+        env:
+          PYTHONPATH: ${{ github.workspace }}
+        run: |
           python -u -m src.rss_generator || echo "RSS generation skipped"
 
+      - name: Save News Digest Cache
+        if: steps.cache-digest.outputs.cache-hit != 'true' && hashFiles('data/news_digest.json') != ''
+        uses: actions/cache/save@v5
+        with:
+          path: data/news_digest.json
+          key: news-digest-${{ steps.digest-date.outputs.date }}
+
       - name: Run V2 Publisher (Render-Only)
         env:
           PYTHONPATH: ${{ github.workspace }}
diff --git a/.github/workflows/09.weekly_digest.yml b/.github/workflows/09.weekly_digest.yml
index 6931c41d..cebfdf2c 100644
--- a/.github/workflows/09.weekly_digest.yml
+++ b/.github/workflows/09.weekly_digest.yml
@@ -33,13 +33,39 @@ jobs:
       - name: Install Dependencies
         run: pip install -r requirements.txt
 
+      - name: Get current date for digest cache key
+        id: digest-date
+        run: echo "date=$(date -u +%Y-%m-%d)" >> $GITHUB_OUTPUT
+
+      - name: Restore News Digest Cache
+        id: cache-digest
+        uses: actions/cache/restore@v5
+        with:
+          path: data/news_digest.json
+          key: news-digest-${{ steps.digest-date.outputs.date }}
+          restore-keys: |
+            news-digest-
+
       - name: Generate News Digest (Gemini)
+        if: steps.cache-digest.outputs.cache-hit != 'true'
         env:
           PYTHONPATH: ${{ github.workspace }}
           GEMINI_API_KEY_1: ${{ secrets.GEMINI_API_KEY_1 }}
           GEMINI_API_KEY_2: ${{ secrets.GEMINI_API_KEY_2 }}
         run: |
           python -u -m src.news_digest
+
+      - name: Save News Digest Cache
+        if: steps.cache-digest.outputs.cache-hit != 'true' && hashFiles('data/news_digest.json') != ''
+        uses: actions/cache/save@v5
+        with:
+          path: data/news_digest.json
+          key: news-digest-${{ steps.digest-date.outputs.date }}
+
+      - name: Generate RSS Feed
+        env:
+          PYTHONPATH: ${{ github.workspace }}
+        run: |
           python -u -m src.rss_generator || echo "RSS generation skipped"
 
       - name: Render V2 Portal (Digest Pages Only)