diff options
Diffstat (limited to '.extras/test-build')
| -rwxr-xr-x | .extras/test-build | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/.extras/test-build b/.extras/test-build index 26bf2a4..6c2d580 100755 --- a/.extras/test-build +++ b/.extras/test-build @@ -425,16 +425,32 @@ cache_label() { fi } -# Compute CACHE_ROOT from the image's digest. Falls back to the tag if the -# digest cannot be read (still isolates per image reference). +# Compute CACHE_ROOT from the image's digest, namespaced by variant. Falls back +# to the tag if the digest cannot be read (still isolates per image reference). +# The dir is "<variant>-<digest>", so an image rebuild changes the digest and +# self-invalidates the cache (deps built against the old base are never reused). +# +# Prune stale digests of THIS variant on the way in: a base update leaves the +# old <variant>-<olddigest> dir orphaned, so drop it. Scoped to the variant so a +# --current run does not wipe the 15.0 cache (both live caches survive, and +# testing both trees back-to-back still reuses built deps). resolve_cache_root() { [[ -z "$PKG_CACHE" ]] && { CACHE_ROOT=""; return; } local digest digest="$(docker image inspect --format '{{index .Id}}' "$ACTIVE_IMAGE" 2>/dev/null)" [[ -z "$digest" ]] && digest="tag-${ACTIVE_IMAGE//[^a-zA-Z0-9._-]/_}" digest="${digest//[^a-zA-Z0-9._-]/_}" - CACHE_ROOT="$PKG_CACHE/$digest" + local name="${VERSION_ID}-${digest}" + CACHE_ROOT="$PKG_CACHE/$name" mkdir -p "$CACHE_ROOT" + + # drop superseded caches for this variant only + local d + for d in "$PKG_CACHE/${VERSION_ID}-"*; do + [[ -d "$d" ]] || continue + [[ "$(basename "$d")" == "$name" ]] && continue + rm -rf "$d" + done } # Does SlackBuild dir $1 directly require any prog in the dead list (nameref $2)? |