remove EOL focal

Author: asottile

README.md

@@ -31,6 +31,6 @@ control file.  For example:
 
 ```bash
 ./make-new-image \
-    --codename focal \
-    ../python3.6/debian/control > dockerfiles/Dockerfile.focal
+    --codename noble \
+    ../python3.13/debian/control > dockerfiles/Dockerfile.noble
 ```

dockerfiles/Dockerfile.focal

@@ -1,5 +1,5 @@
 # we use the oldest supported distribution for pristine-tar
-FROM ubuntu:focal
+FROM ubuntu:jammy
 RUN : \
     && apt-get update -qq \
     && DEBIAN_FRONTEND=noninteractive apt-get install \

dockerfiles/Dockerfile.tools

@@ -44,7 +44,7 @@ ALWAYS_DEPS = {
 
 def main() -> int:
     parser = argparse.ArgumentParser()
-    parser.add_argument('--codename', default='focal')
+    parser.add_argument('--codename', required=True)
     parser.add_argument('control_filename')
     args = parser.parse_args()
 

make-new-image

@@ -33,10 +33,7 @@ if {lt312}; then
 fi
 
 apt-get install -y --no-install-recommends ca-certificates
-if [ \
-    "$DISTRIB_CODENAME" = focal -a {ver} = '3.9' -o \
-    "$DISTRIB_CODENAME" = jammy -a {ver} = '3.11' \
-]; then
+if [ "$DISTRIB_CODENAME" = jammy -a {ver} = '3.11' ]; then
     apt-get install -y --no-install-recommends python3-distutils
 else
     if {lt313}; then