Add zig/0.15.2

Author: generalmimon

.github/workflows/build.yml

@@ -85,6 +85,8 @@ jobs:
             implementation: '3.4'
           - target: rust
             implementation: '1.89'
+          - target: zig
+            implementation: '0.15.2'
 
     steps:
       - name: Dump matrix context

src/zig/0.15.2-linux-x86_64/Dockerfile

@@ -0,0 +1,24 @@
+FROM alpine:3.22
+
+# Copy files common for all images
+COPY 4img/* ./
+
+# Install all dependencies
+RUN \
+	./prepare-alpine-init && \
+	./prepare-alpine-ruby && \
+	apk add curl minisign && \
+	./prepare-alpine-uninit
+
+# Download Zig
+RUN ./prepare 'zig-x86_64-linux-0.15.2.tar.xz'
+
+# Add the `zig` binary to PATH
+ENV PATH="$PATH:/usr/local/zig-x86_64-linux-0.15.2"
+
+# Validate that we've got correct version, e.g. something like this:
+#
+# $ zig version
+# 0.15.2
+
+RUN ./validate '^0\.15\.2$'

src/zig/0.15.2-linux-x86_64/build

@@ -0,0 +1 @@
+../../generic-build

src/zig/0.15.2-linux-x86_64/run-it

@@ -0,0 +1 @@
+../../generic-run-it

src/zig/_common/prepare

@@ -0,0 +1,47 @@
+#!/bin/sh -ef
+
+# See https://ziglang.org/download/community-mirrors/
+
+# From https://ziglang.org/download/
+pubkey='RWSGOq2NVecA2UPNdBUZykf1CCb147pkmdtYxgb3Ti+JO/wCYvhbAb/U'
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 <tarball_name>" >&2
+    exit 1
+fi
+tarball_name=$1
+
+cleanup()
+{
+	rm -f shuffled_mirrors.txt "${tarball_name}" "${tarball_name}.minisig"
+}
+
+trap 'cleanup' EXIT
+
+source_query_param='?source=github-kaitai-io-kaitai_struct_docker_images'
+
+mirrors=$(curl -fsSL "https://ziglang.org/download/community-mirrors.txt$source_query_param")
+printf '%s\n' "$mirrors" | shuf -o shuffled_mirrors.txt
+
+i=0
+num_mirrors=$(wc -l < shuffled_mirrors.txt)
+
+while IFS= read -r mirror_url; do
+	i=$((i+1))
+	echo "Mirror $i/$num_mirrors: $mirror_url"
+	curl -fsSLO --url "$mirror_url/${tarball_name}${source_query_param}" || continue
+	curl -fsSLO --url "$mirror_url/${tarball_name}.minisig${source_query_param}" || continue
+	trusted_comment=$(minisign -Q -Vm "$tarball_name" -P "$pubkey") || continue
+	actual_file_field=$(printf '%s\n' "$trusted_comment" | tr '\t' '\n' | grep '^file:')
+	expected_file_field="file:$tarball_name"
+	if [ "$actual_file_field" != "$expected_file_field" ]; then
+		echo "Expected '$expected_file_field', but found '$actual_file_field'"
+		continue
+	fi
+	echo "Successfully fetched $tarball_name"
+	tar -C /usr/local -xf "$tarball_name"
+	exit 0
+done < shuffled_mirrors.txt
+
+echo "Failed to fetch $tarball_name: no working mirror found"
+exit 1

src/zig/_common/validate

@@ -0,0 +1,4 @@
+#!/bin/sh -ef
+
+ver=$(zig version)
+./validate-version Zig "$ver" "$@"