From f5df4a413680d6ecb9db36594a7a4186c92def8c Mon Sep 17 00:00:00 2001
From: Chemaclass <chemaclass@outlook.es>
Date: Thu, 13 Aug 2026 10:47:36 +0200
Subject: [PATCH] ci: retry the Bash 3.0 tarball download and fall back to a
 mirror

ftp.gnu.org timed out on two unrelated PRs in one afternoon, both curl exit
28, and each one needed a human to spot that the red tick had nothing to do
with the change.

Retries on the three downloads, and a mirrors.kernel.org fallback for the
tarball itself.

Closes #1106
---
 .github/workflows/tests-bash-3.0.yml | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/tests-bash-3.0.yml b/.github/workflows/tests-bash-3.0.yml
index e8097764..f6ed099b 100644
--- a/.github/workflows/tests-bash-3.0.yml
+++ b/.github/workflows/tests-bash-3.0.yml
@@ -42,11 +42,19 @@ jobs:
               && rm -rf /var/lib/apt/lists/*
 
           WORKDIR /tmp
-          RUN curl -LO https://ftp.gnu.org/gnu/bash/bash-3.0.tar.gz \
+          # ftp.gnu.org times out often enough to have failed two unrelated PRs
+          # in one afternoon (curl exit 28). Retry, and fall back to a GNU
+          # mirror before giving up, so a red tick means the code is red.
+          RUN (curl -fsSL --retry 5 --retry-delay 3 --retry-connrefused --connect-timeout 20 \
+                    -o bash-3.0.tar.gz https://ftp.gnu.org/gnu/bash/bash-3.0.tar.gz \
+                || curl -fsSL --retry 5 --retry-delay 3 --retry-connrefused --connect-timeout 20 \
+                    -o bash-3.0.tar.gz https://mirrors.kernel.org/gnu/bash/bash-3.0.tar.gz) \
               && tar xzf bash-3.0.tar.gz \
               && cd bash-3.0 \
-              && curl -fsSL -o support/config.guess 'https://raw.githubusercontent.com/gcc-mirror/gcc/master/config.guess' \
-              && curl -fsSL -o support/config.sub 'https://raw.githubusercontent.com/gcc-mirror/gcc/master/config.sub' \
+              && curl -fsSL --retry 5 --retry-delay 3 --retry-connrefused --connect-timeout 20 \
+                    -o support/config.guess 'https://raw.githubusercontent.com/gcc-mirror/gcc/master/config.guess' \
+              && curl -fsSL --retry 5 --retry-delay 3 --retry-connrefused --connect-timeout 20 \
+                    -o support/config.sub 'https://raw.githubusercontent.com/gcc-mirror/gcc/master/config.sub' \
               && chmod +x support/config.guess support/config.sub \
               && ./configure --prefix=/opt/bash-3.0 \
               && make \