crystal Portfile example

# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4

PortSystem          1.0
PortGroup           github 1.0
PortGroup           makefile 1.0

github.setup        crystal-lang crystal 1.17.1
github.tarball_from archive
revision            0
categories          lang
supported_archs     x86_64 arm64
license             Apache-2
maintainers         {makr @mohd-akram} openmaintainer

description         Crystal programming language

long_description    Crystal is a fast, compiled programming language with a \
                    Ruby-inspired syntax.

homepage            https://crystal-lang.org

set llvm_version    20

depends_build       path:bin/pkg-config:pkgconfig

depends_lib         port:boehmgc \
                    port:libffi \
                    port:libiconv \
                    port:llvm-${llvm_version} \
                    port:pcre2

# Libraries used by the standard library; pkg-config is used when compiling user programs
depends_run         port:gmp \
                    port:libevent \
                    port:libxml2 \
                    port:libyaml \
                    path:lib/libssl.dylib:openssl \
                    port:zlib \
                    path:bin/pkg-config:pkgconfig

# Bootstrap binaries use libpthread functions added in macOS 10.15
platforms           {darwin >= 19}

# Use a prebuilt Crystal to build itself
set cr_ver          ${version}
set cr_full_ver     ${cr_ver}-1

master_sites-append https://github.com/crystal-lang/${name}/releases/download/${cr_ver}/:bootstrap
distfiles-append    ${name}-${cr_full_ver}-${os.platform}-universal${extract.suffix}:bootstrap

checksums           ${distname}${extract.suffix} \
                    rmd160  b9c37b4f3e49be14f6bfe708310d180ed782a9b0 \
                    sha256  f673c09577a7749d06aa56639dcf5f79bdd61ee195ab1c9b445e6f3880bd2910 \
                    size    3868937 \
                    ${name}-${cr_full_ver}-${os.platform}-universal${extract.suffix} \
                    rmd160  032eaf538bff0e14d6463617829d1abbb07e1347 \
                    sha256  be1ddcc971e86a1dc978ee75bb731a0da50859e9db6841df5d27e00b2448eaae \
                    size    59541160

# Keep static linking behavior consistent with the current ports tree patches
patchfiles          patch-static.diff

# Do NOT copy OpenBSD iconv stubs into Darwin; downstream hack removed.

# Ensure LLVM runtime can be found at run time
configure.ldflags-append    -Wl,-rpath,${prefix}/libexec/llvm-${llvm_version}/lib

set llvm_config     LLVM_CONFIG=llvm-config-mp-${llvm_version}

compiler.cxx_standard  2014

# Apply -Duse_libiconv consistently during all build stages
build.args          release=1 interpreter=1 \
                    FLAGS="--no-debug -Duse_libiconv" \
                    CRYSTAL_CONFIG_LIBRARY_PATH=${prefix}/lib

# Also export CRYSTAL_OPTS so sub-invocations of the compiler inherit the flag
build.env           ${llvm_config} \
                    CRYSTAL=${workpath}/${name}-${cr_full_ver}/bin/${name} \
                    CRYSTAL_OPTS="-Duse_libiconv"

post-build {
    system -W ${worksrcpath} "${llvm_config} ${build.cmd} docs"
}

destroot.target-append  install_docs
destroot.args       -o docs
destroot.env        ${llvm_config}

# Install a thin wrapper so end users don't need to set CRYSTAL_OPTS manually.
# The wrapper execs the real compiler from libexec and injects a default -Duse_libiconv.
post-destroot {
    xinstall -d ${destroot}${prefix}/libexec/${name}
    if {[file exists ${destroot}${prefix}/bin/${name}]} {
        file rename -force ${destroot}${prefix}/bin/${name} \
            ${destroot}${prefix}/libexec/${name}/${name}-real
    }

    xinstall -d ${destroot}${prefix}/bin
    set wrapper ${destroot}${prefix}/bin/${name}
    set fd [open ${wrapper} "w"]
    puts $fd "#!/bin/sh"
    puts $fd ': \"${CRYSTAL_OPTS:=-Duse_libiconv}\"'
    puts $fd 'export CRYSTAL_OPTS'
    puts $fd "exec ${prefix}/libexec/${name}/${name}-real \"\$@\""
    close $fd
    file attributes ${wrapper} -permissions 0755
}

# Run tests with the same flag propagation to cover compiler re-invocations
test.run            yes
test.target         spec
test.args           FLAGS="-Duse_libiconv"
test.env            ${llvm_config} \
                    CRYSTAL_OPTS="-Duse_libiconv"