Update buildkit to 0.15.0-rc1 (and update patches accordingly for ups…

…tream merges)

buildkit/Dockerfile

@@ -12,7 +12,7 @@ ENV BUILDKIT_VERSION 0.14.1
 COPY \
 	backport-5072-fetch-tags.patch \
 	backport-5096-fix-umask.patch \
-	containerd-arm64-v8.patch \
+	containerd-arm64-v8-pre-0.15.patch \
 	git-no-submodules.patch \
 	mips64le.patch \
 	noclip.patch \

buildkit/Dockerfile.0.13

@@ -12,7 +12,7 @@ ENV BUILDKIT_VERSION 0.13.2
 COPY \
 	backport-5072-fetch-tags.patch \
 	backport-5096-fix-umask.patch \
-	containerd-arm64-v8.patch \
+	containerd-arm64-v8-pre-0.15.patch \
 	git-no-submodules.patch \
 	mips64le.patch \
 	noclip.patch \

buildkit/Dockerfile.rc

@@ -7,11 +7,9 @@
 FROM --platform=$BUILDPLATFORM golang:1.21 AS build
 
 # https://github.com/moby/buildkit/releases
-ENV BUILDKIT_VERSION 0.14.0-rc2
+ENV BUILDKIT_VERSION 0.15.0-rc1
 
 COPY \
-	backport-5072-fetch-tags.patch \
-	backport-5096-fix-umask.patch \
 	containerd-arm64-v8.patch \
 	git-no-submodules.patch \
 	mips64le.patch \

buildkit/Dockerfile.template

@@ -15,9 +15,13 @@ ENV BUILDKIT_VERSION {{ .version }}
 COPY \
 {{ if env.variant != "dev" and (.version | startswith("0.13.") or startswith("0.14.")) then ( -}}
 	backport-5072-fetch-tags.patch \
-{{ ) else "" end -}}
 	backport-5096-fix-umask.patch \
+{{) else "" end -}}
+{{ if .version | startswith("0.13.") or startswith("0.14.") then ( -}}
+	containerd-arm64-v8-pre-0.15.patch \
+{{ ) else ( -}}
 	containerd-arm64-v8.patch \
+{{ ) end -}}
 	git-no-submodules.patch \
 	mips64le.patch \
 	noclip.patch \

buildkit/containerd-arm64-v8-pre-0.15.patch

@@ -0,0 +1,18 @@
+Description: normalize "linux/arm64" to "linux/arm64/v8" instead of the other direction
+Forwarded: no; presumably, the direction this went was intentional (Tianon just disagrees, and the normalization allows him that)
+
+diff --git a/vendor/github.com/containerd/containerd/platforms/database.go b/vendor/github.com/containerd/containerd/platforms/database.go
+index 2e26fd3b4..5ef7d74d1 100644
+--- a/vendor/github.com/containerd/containerd/platforms/database.go
++++ b/vendor/github.com/containerd/containerd/platforms/database.go
+@@ -87,8 +87,8 @@ func normalizeArch(arch, variant string) (string, string) {
+ 	case "aarch64", "arm64":
+ 		arch = "arm64"
+ 		switch variant {
+-		case "8", "v8":
+-			variant = ""
++		case "", "8":
++			variant = "v8"
+ 		}
+ 	case "armhf":
+ 		arch = "arm"

buildkit/containerd-arm64-v8.patch

@@ -1,10 +1,10 @@
 Description: normalize "linux/arm64" to "linux/arm64/v8" instead of the other direction
 Forwarded: no; presumably, the direction this went was intentional (Tianon just disagrees, and the normalization allows him that)
 
-diff --git a/vendor/github.com/containerd/containerd/platforms/database.go b/vendor/github.com/containerd/containerd/platforms/database.go
+diff --git a/vendor/github.com/containerd/platforms/database.go b/vendor/github.com/containerd/platforms/database.go
 index 2e26fd3b4..5ef7d74d1 100644
---- a/vendor/github.com/containerd/containerd/platforms/database.go
-+++ b/vendor/github.com/containerd/containerd/platforms/database.go
+--- a/vendor/github.com/containerd/platforms/database.go
++++ b/vendor/github.com/containerd/platforms/database.go
 @@ -87,8 +87,8 @@ func normalizeArch(arch, variant string) (string, string) {
  	case "aarch64", "arm64":
  		arch = "arm64"

buildkit/gsl.sh

@@ -68,7 +68,7 @@ exec jq -r '
 				)
 			)
 			| reduce to_entries[] as $e ({};
-				.[$e.key] = $e.value - ([ .[][] ])
+				.[$e.key] = $e.value - [ .[][] ]
 			)
 			| to_entries[]
 			| .key as $variant

buildkit/versions.json

@@ -12,10 +12,10 @@
     "0.13"
   ],
   "rc": {
-    "commit": "aebcc1f0eabcbaeef4be8e948641f653140fe2bf",
-    "ref": "refs/tags/v0.14.0-rc2",
-    "tag": "v0.14.0-rc2",
-    "version": "0.14.0-rc2",
+    "commit": "8ade9b239b580ff2af97b527e2484df60d6a2b6b",
+    "ref": "refs/tags/v0.15.0-rc1",
+    "tag": "v0.15.0-rc1",
+    "version": "0.15.0-rc1",
     "go": {
       "version": "1.21"
     }

buildkit/versions.sh

@@ -60,7 +60,7 @@ for variant in "${variants[@]}"; do
 
 	commit="$(jq <<<"$bk" -r '.commit // .version')"
 	go="$(wget -qO- "https://github.com/moby/buildkit/raw/$commit/go.mod")"
-	go="$(awk <<<"$go" '$1 == "go" { print $2; exit }')"
+	go="$(awk <<<"$go" '$1 == "go" { if ($2 ~ /^[0-9]+[.][0-9]+[.][0-9]+$/) { sub(/[.][0-9]+$/, "", $2) } print $2; exit }')"
 	echo >&2 "${variant:-stable} go: $go"
 
 	json="$(jq <<<"$json" --argjson bk "$bk" --arg go "$go" '