Add cache_path + cache_store + tests

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/sbo-batch-test b/sbo-batch-test
index 1e0020c..c5e6cf1 100755
--- a/sbo-batch-test
+++ b/sbo-batch-test
@@ -342,6 +342,31 @@ cache_decision() {
   fi
 }
 
+# cache_path <cat> <prog> <version> -> echoes the cached .txz path for that
+# version, or nothing. Used to installpkg a cached dep.
+cache_path() {
+  local cat="$1" prog="$2" version="$3"
+  [[ -z "$PKG_CACHE" ]] && return
+  local dir="$PKG_CACHE/$cat/$prog"
+  local f newest=""
+  for f in "$dir/$prog"-*.t?z; do
+    [[ -e "$f" ]] || continue
+    [[ -z "$newest" || "$f" -nt "$newest" ]] && newest="$f"
+  done
+  [[ -z "$newest" ]] && return
+  [[ "$(_cache_ver_of "$prog" "$(basename "$newest")")" == "$version" ]] && echo "$newest"
+}
+
+# cache_store <cat> <prog> <src-txz> -> clear the prog dir, copy src in.
+cache_store() {
+  local cat="$1" prog="$2" src="$3"
+  [[ -z "$PKG_CACHE" ]] && return
+  local dir="$PKG_CACHE/$cat/$prog"
+  mkdir -p "$dir"
+  rm -f "$dir"/*.t?z
+  cp -a "$src" "$dir/"
+}
+
 # =============================================================================
 # SBo tree lookup. Find the SlackBuild dir for a prog name across roots.
 # Echoes the dir path, returns 0 if found, 1 otherwise.