Fixed arm32v7 builds by installing with pnpm 11

Dockerfile-next.template

@@ -86,8 +86,20 @@ RUN set -eux; \
 	; \
 	\
 {{ ) end -}}
-# Ghost pins its pnpm by hash in "packageManager", so corepack fetches exactly that one
-	corepack enable; \
+# Ghost pins its pnpm by hash in "packageManager", so corepack fetches exactly that one -- except on
+# arm32v7, where pnpm 12 is a Rust binary with no 32-bit ARM target and no JavaScript fallback.
+# pnpm 11 is the last JavaScript implementation and reads the same lockfile format
+	if [ "$(node -p 'process.arch')" = 'arm' ]; then \
+# yarn still goes to corepack so "rm -rf /opt/yarn-*" below does not leave its symlinks dangling
+		corepack enable yarn; \
+		npm install -g 'pnpm@{{ .pnpm.fallbackVersion }}'; \
+	else \
+		corepack enable; \
+	fi; \
+	\
+# pnpm 11 would otherwise honour "packageManager" and switch back to the binary it cannot run.
+# Inert under corepack, which owns version switching; exported so it survives the "gosu ghost" drop
+	export pnpm_config_pm_on_fail=ignore; \
 	\
 # everything under the install dir is created by "ghost" rather than chowned afterwards: a recursive
 # chown would copy the whole tree into a new layer

Dockerfile.template

@@ -78,7 +78,18 @@ RUN set -eux; \
 	apt-get install -y --no-install-recommends ca-certificates git; \
 {{ ) end -}}
 	\
-	corepack enable; \
+# pnpm 12 is a Rust binary with no 32-bit ARM target and no JavaScript fallback, so corepack cannot
+# produce the version "packageManager" pins on arm32v7. pnpm 11 is the last JavaScript
+# implementation and reads the same lockfile format, so that arch installs with it instead
+	if [ "$(node -p 'process.arch')" = 'arm' ]; then \
+		npm install -g 'pnpm@{{ .pnpm.fallbackVersion }}'; \
+	else \
+		corepack enable; \
+	fi; \
+	\
+# pnpm 11 would otherwise honour "packageManager" and switch back to the binary it cannot run;
+# exported because Ghost-CLI spawns pnpm itself. Inert under corepack, which owns version switching
+	export pnpm_config_pm_on_fail=ignore; \
 	\
 # corepack's downloads, pnpm's metadata cache and pnpm's store all derive their location
 # from these, so pointing them at /tmp keeps every throwaway byte in one place
@@ -125,6 +136,9 @@ RUN set -eux; \
 	mkdir -p "$GHOST_INSTALL"; \
 	chown node:node "$GHOST_INSTALL"; \
 	\
+# "ghost install" and "pnpm store prune" below both run pnpm; see the note in the Ghost-CLI stage
+	export pnpm_config_pm_on_fail=ignore; \
+	\
 {{ if is_alpine then ( -}}
 	apk add --no-cache --virtual .build-deps-ghost g++ linux-headers make python3 py3-setuptools; \
 {{ ) else ( -}}

versions.json

@@ -8,6 +8,9 @@
     "node": {
       "version": "22"
     },
+    "pnpm": {
+      "fallbackVersion": "11.26.0"
+    },
     "variants": {
       "bookworm": {
         "arches": [
@@ -36,6 +39,9 @@
     "node": {
       "version": "22"
     },
+    "pnpm": {
+      "fallbackVersion": "11.26.0"
+    },
     "variants": {
       "bookworm": {
         "arches": [

versions.sh

@@ -73,6 +73,17 @@ if [ -z "$cliSha" ]; then
 	exit 1
 fi
 
+# pnpm 12 is a Rust binary and publishes no 32-bit ARM target, and unlike every pnpm before it
+# there is no JavaScript implementation to fall back to -- the npm package is a downloader that
+# fetches "@pnpm/exe.<platform>-<arch>". So corepack cannot produce the version "packageManager"
+# pins when building for arm32v7. pnpm 11 is the last JavaScript implementation, is still released
+# alongside 12 ("latest-11"), and reads the same lockfile format, so that architecture builds with
+# it instead. Pinned here so it is refreshed by the update workflow like every other version.
+pnpmFallbackVersion="$(
+	fetch 'https://registry.npmjs.org/pnpm' '."dist-tags"."latest-11" // empty' \
+		| jq --raw-output '."dist-tags"."latest-11"'
+)"
+
 for version in "${versions[@]}"; do
 	rcVersion="${version%-rc}"
 	rcGrepV='-v'
@@ -195,14 +206,15 @@ for version in "${versions[@]}"; do
 			'{ cli: { version: $version, sha: $sha } }')"
 	fi
 
-	export fullVersion nodeVersion
+	export fullVersion nodeVersion pnpmFallbackVersion
 	json="$(jq <<<"$json" --compact-output --argjson doc "$doc" --argjson source "$sourceJson" '
 		env.nodeVersion as $nodeVersion
 		| .[env.version] = (
 			{ version: env.fullVersion }
 			+ $source
 			+ {
 				node: { version: $nodeVersion },
+				pnpm: { fallbackVersion: env.pnpmFallbackVersion },
 				variants: (
 					$doc
 					| with_entries(