Cache configure results on stable distros

1 files changed, 23 insertions, 0 deletions

diff --git a/.local/bin/emacs-build b/.local/bin/emacs-build
index 815b244..cbd39a6 100755
--- a/.local/bin/emacs-build
+++ b/.local/bin/emacs-build
@@ -10,6 +10,29 @@ configure_flags=(
     --with-xinput2
 )
 
+is-rolling-distro ()
+{
+    (
+        . /etc/os-release
+        case "${ID}"
+        in
+            opensuse-tumbleweed) return 0;;
+        esac
+        return 1
+    )
+}
+
+if ! is-rolling-distro
+then
+    cachedir=${XDG_CACHE_HOME:-~/.cache}/emacs
+    test -d "${cachedir}" || mkdir -p "${cachedir}"
+
+    thistree=${PWD#~}
+    cachefile=${cachedir}/config${thistree//\//,}
+
+    configure_flags=(--cache-file="${cachefile}" "${configure_flags[@]}")
+fi
+
 if ! test -f Makefile
 then
         ${make} configure