set minimum required zig version from build.zig.zon in tests and dockerfile

.github/workflows/test.yml

@@ -508,9 +508,9 @@ jobs:
       - name: Install zig
         shell: pwsh
         run: |
-          # Get the zig version from build.zig so that it only needs to be updated
-          $fileContent = Get-Content -Path "build.zig" -Raw
-          $pattern = 'buildpkg\.requireZig\("(.*?)"\);'
+          # Get the zig version from build.zig.zon so that it only needs to be updated
+          $fileContent = Get-Content -Path "build.zig.zon" -Raw
+          $pattern = 'minimum_zig_version\s*=\s*"([^"]+)"'
           $zigVersion = [regex]::Match($fileContent, $pattern).Groups[1].Value
           $version = "zig-x86_64-windows-$zigVersion"
           Write-Output $version
@@ -575,7 +575,7 @@ jobs:
       - name: Get required Zig version
         id: zig
         run: |
-          echo "version=$(sed -n -e 's/^.*requireZig("\(.*\)").*$/\1/p' build.zig)" >> $GITHUB_OUTPUT
+          echo "version=$(sed -n -E 's/^\s*\.?minimum_zig_version\s*=\s*"([^"]+)".*/\1/p' build.zig.zon)" >> $GITHUB_OUTPUT
 
       - name: Setup Cache
         uses: namespacelabs/nscloud-cache-action@7baedde84bbf5063413d621f282834bc2654d0c1 # v1.2.18

src/build/docker/debian/Dockerfile

@@ -24,12 +24,12 @@ RUN DEBIAN_FRONTEND="noninteractive" apt-get -qq update && \
 
 WORKDIR /src
 
-COPY ./build.zig /src
+COPY ./build.zig ./build.zig.zon /src/
 
 # Install zig
 # https://ziglang.org/download/
 
-RUN export ZIG_VERSION=$(sed -n -e 's/^.*requireZig("\(.*\)").*$/\1/p' build.zig) && curl -L -o /tmp/zig.tar.xz "https://ziglang.org/download/$ZIG_VERSION/zig-$(uname -m)-linux-$ZIG_VERSION.tar.xz" && \
+RUN export ZIG_VERSION=$(sed -n -E 's/^\s*\.?minimum_zig_version\s*=\s*"([^"]+)".*/\1/p' build.zig.zon) && curl -L -o /tmp/zig.tar.xz "https://ziglang.org/download/$ZIG_VERSION/zig-$(uname -m)-linux-$ZIG_VERSION.tar.xz" && \
     tar -xf /tmp/zig.tar.xz -C /opt && \
     rm /tmp/zig.tar.xz && \
     ln -s "/opt/zig-$(uname -m)-linux-$ZIG_VERSION/zig" /usr/local/bin/zig
@@ -41,4 +41,3 @@ RUN zig build \
     -Dcpu=baseline
 
 RUN ./zig-out/bin/ghostty +version
-