From e64259b34c93645dc2eda533ee47e923d6cd5cdc Mon Sep 17 00:00:00 2001
From: jrfnl <jrfnl@users.noreply.github.com>
Date: Fri, 9 Dec 2022 03:02:53 +0100
Subject: [PATCH] GH Actions: minor simplification

... of the bash `date` command in the earlier pulled cache busting.
---
 .github/workflows/tests.yml | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 79fcdb37c..9ad597321 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -31,8 +31,8 @@ jobs:
       - name: Install Composer dependencies
         uses: "ramsey/composer-install@v2"
         with:
-          # Bust the cache at least once a month - output format: YYYY-MM-DD.
-          custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
 
       - name: Check coding standards
         id: phpcs
@@ -71,8 +71,8 @@ jobs:
       - name: Install Composer dependencies
         uses: "ramsey/composer-install@v2"
         with:
-          # Bust the cache at least once a month - output format: YYYY-MM-DD.
-          custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
 
       - name: Lint against parse errors
         if: ${{ matrix.php != '8.3' }}
@@ -126,16 +126,16 @@ jobs:
         if: ${{ matrix.php != '8.3' }}
         uses: "ramsey/composer-install@v2"
         with:
-          # Bust the cache at least once a month - output format: YYYY-MM-DD.
-          custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
 
       - name: Install PHP packages - ignore-platform-reqs
         if: ${{ matrix.php == '8.3' }}
         uses: "ramsey/composer-install@v2"
         with:
           composer-options: --ignore-platform-reqs
-          # Bust the cache at least once a month - output format: YYYY-MM-DD.
-          custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
 
       # Install postfix and automatically retry if the install failed, which happens reguarly.
       # @link https://github.com/marketplace/actions/retry-step