Add an option to clone the source in tmpfs everytime instead of using the root PKGBUILD dir. This effectively brings back a similar approach to makepkg in the way of handling git sources.

It'll require ~20GB of space by itself, so if your tmpfs is in RAM, make sure you have enough free, and it's definitely not recommended to use this on a <32GB RAM machine.

customization.cfg

@@ -57,6 +57,10 @@ _diffconfig_name=""
 # [install.sh specific] Use tmpfs as a work directory, recommended when RAM >= 32GB to reduce HDD/SSD usage. For more information, see https://wiki.archlinux.org/title/Tmpfs
 _use_tmpfs="false"
 
+# Always make a fresh clone of the source in tmpfs to speed up compilation times
+# ! This will take ~20GB of RAM by itself, so don't use on <32GB RAM systems !
+_source_in_tmpfs="false"
+
 # [install.sh specific] tmpfs folder path, only used when _use_tmpfs="true".
 #                       Creates a linux-tkg work folder within that pathmake sure to have nothing important in "$_tmpfs_path/linux-tkg"
 _tmpfs_path="/tmp"

linux-tkg-config/prepare

@@ -390,9 +390,14 @@ _linux_git_branch_checkout() {
 
   cd "$_where"
 
-  if ! [ -d linux-src-git ]; then
+  if ! [ -d linux-src-git ] || [ "$_source_in_tmpfs" = "true" ]; then
     msg2 "First initialization of the linux source code git folder"
+    if [ "$_source_in_tmpfs" = "true" ]; then
+      rm -rf "/tmp/linux-src-git" && mkdir "/tmp/linux-src-git"
+      ln -s "/tmp/linux-src-git" "${_where}"
+    else
       mkdir linux-src-git
+    fi
     cd linux-src-git
     git init