ubiquity: setup custom support for deb822 format

helpers/DATA/ubiquity/99trisquel

@@ -0,0 +1,77 @@
+#!/bin/sh
+set -e
+
+file="$1"
+
+# Trisquel: Deb822-first, keep legacy clean
+: "${ROOT:=/target}"
+SD="$ROOT/etc/apt/sources.list.d"
+SF="$SD/trisquel.sources"
+LEGACY="$ROOT/etc/apt/sources.list"
+MSG="# Trisquel sources have moved to /etc/apt/sources.list.d/trisquel.sources"
+mkdir -p "$SD"
+
+FASTEST=https://archive.trisquel.org/trisquel/
+SPEED=1000000000000
+
+if nm-online -xq
+then
+    for i in $(grep '//' /usr/share/python-apt/templates/Trisquel.mirrors | sed 's|/$||')
+    do
+        echo Testing $i
+        TIME=$(date +%s%N)
+        wget --no-check-certificate -t 1 -T 5 --max-redirect=0 -o /dev/null -O /dev/null $i/speedtest || continue
+        TIME2=$(date +%s%N)
+        ELAPSED=$(expr $TIME2 - $TIME)
+        echo Time: $ELAPSED
+        if [ $ELAPSED -lt $SPEED ]
+        then
+            FASTEST=$i
+            SPEED=$ELAPSED
+        fi
+    done
+fi
+
+echo "Selected mirror: $FASTEST"
+
+MIRROR=$FASTEST
+RELEASE=$(lsb_release -c | cut -f 2)
+
+# Ensure MIRROR ends with a single trailing slash for Deb822 URIs
+case "$MIRROR" in
+  */) : ;;
+  *) MIRROR="$MIRROR/";;
+esac
+
+# Use keyring in /usr/share/keyrings
+SIGNED_BY="/usr/share/keyrings/trisquel-archive-keyring.gpg"
+
+# Write Deb822 sources file in the requested structure
+cat << EOF > "$SF"
+# Trisquel repositories for supported software and updates
+Types: deb
+URIs: ${MIRROR}
+Suites: ${RELEASE} ${RELEASE}-updates ${RELEASE}-security
+Components: main
+Signed-By: ${SIGNED_BY}
+
+# Source package repositories
+Types: deb-src
+URIs: ${MIRROR}
+Suites: ${RELEASE} ${RELEASE}-updates ${RELEASE}-security
+Components: main
+Signed-By: ${SIGNED_BY}
+
+# Optional backports repository
+Enabled: no
+Types: deb deb-src
+URIs: ${MIRROR}
+Suites: ${RELEASE}-backports
+Components: main
+Signed-By: ${SIGNED_BY}
+EOF
+
+# Keep the legacy file and the pipeline temp file as a single breadcrumb line
+printf '%s\n' "$MSG" > "$LEGACY"
+printf '%s\n' "$MSG" > "$file"
+exit 0