tcwg-generate-source-cache.sh: Add LLVM reference checkout

Change-Id: Ib240c9f092d813d38e78adacab10260203936061

1 files changed, 22 insertions, 2 deletions

diff --git a/tcwg-generate-source-cache.sh b/tcwg-generate-source-cache.sh
index 845497db..3d0c352e 100755
--- a/tcwg-generate-source-cache.sh
+++ b/tcwg-generate-source-cache.sh
@@ -60,7 +60,7 @@ if [ x"$llvm_reference" = x"" ]; then
     usage
 fi
 
-# Checkout into $snapshots_dir using ABE
+# Checkout GNU tools into $snapshots_dir using ABE
 generate_abe_snapshots ()
 {
     set -e
@@ -104,6 +104,23 @@ generate_abe_snapshots ()
     rm -f $snapshots_dir/md5sums
 }
 
+# Checkout LLVM tools into $llvm_reference
+randomise_llvm_bobblybits ()
+{
+    set -e
+    $verbose
+
+    # Using the llvm scripts would be over-complicated for such a simple task
+    # We also don't need all repos (like clang-tools-extra, zorg or www)
+    local gitroot=https://git.linaro.org/toolchain/llvm
+    local repos="llvm clang compiler-rt lld libcxx libcxxabi libunwind lldb test-suite lnt"
+    for repo in $repos; do
+	if [ -d "$llvm_reference/$repo" ]; then continue; fi
+	git clone --no-checkout "$gitroot/$repo" "$llvm_reference/$repo"
+    done
+}
+
+# Checkout other repos that we might need
 generate_misc_files ()
 {
     set -e
@@ -157,7 +174,10 @@ if $generate_abe; then
 fi
 
 if $generate_llvm; then
-    :
+    mkdir -p $llvm_reference
+
+    update_git_repos $llvm_reference
+    randomise_llvm_bobblybits
 fi
 
 if $generate_misc; then