perl: Rewrite build system using Meson

perl/Makefile

@@ -1,21 +0,0 @@
-makefiles = local.mk
-
-GLOBAL_CXXFLAGS += -g -Wall -std=c++2a
-
-# A convenience for concurrent development of Nix and its Perl bindings.
-# Not needed in a standalone build of the Perl bindings.
-ifneq ("$(wildcard ../src)", "")
-  GLOBAL_CXXFLAGS += -I ../src
-endif
-
--include Makefile.config
-
-OPTIMIZE = 1
-
-ifeq ($(OPTIMIZE), 1)
-  GLOBAL_CXXFLAGS += -O3
-else
-  GLOBAL_CXXFLAGS += -O0
-endif
-
-include mk/lib.mk

perl/Makefile.config.in

@@ -1,18 +0,0 @@
-HOST_OS = @host_os@
-CC = @CC@
-CFLAGS = @CFLAGS@
-CXX = @CXX@
-CXXFLAGS = @CXXFLAGS@
-PACKAGE_NAME = @PACKAGE_NAME@
-PACKAGE_VERSION = @PACKAGE_VERSION@
-SODIUM_LIBS = @SODIUM_LIBS@
-NIX_CFLAGS = @NIX_CFLAGS@
-NIX_LIBS = @NIX_LIBS@
-nixbindir = @nixbindir@
-curl = @curl@
-nixlibexecdir = @nixlibexecdir@
-nixlocalstatedir = @nixlocalstatedir@
-perl = @perl@
-perllibdir = @perllibdir@
-nixstoredir = @nixstoredir@
-nixsysconfdir = @nixsysconfdir@

perl/configure.ac

@@ -1,84 +0,0 @@
-AC_INIT(nix-perl, m4_esyscmd([bash -c "echo -n $(cat ../.version)$VERSION_SUFFIX"]))
-AC_CONFIG_SRCDIR(MANIFEST)
-AC_CONFIG_AUX_DIR(../config)
-
-CFLAGS=
-CXXFLAGS=
-AC_PROG_CC
-AC_PROG_CXX
-
-AC_CANONICAL_HOST
-
-# Use 64-bit file system calls so that we can support files > 2 GiB.
-AC_SYS_LARGEFILE
-
-AC_DEFUN([NEED_PROG],
-[
-AC_PATH_PROG($1, $2)
-if test -z "$$1"; then
-    AC_MSG_ERROR([$2 is required])
-fi
-])
-
-NEED_PROG(perl, perl)
-NEED_PROG(curl, curl)
-NEED_PROG(bzip2, bzip2)
-NEED_PROG(xz, xz)
-
-# Test that Perl has the open/fork feature (Perl 5.8.0 and beyond).
-AC_MSG_CHECKING([whether Perl is recent enough])
-if ! $perl -e 'open(FOO, "-|", "true"); while (<FOO>) { print; }; close FOO or die;'; then
-    AC_MSG_RESULT(no)
-    AC_MSG_ERROR([Your Perl version is too old.  Nix requires Perl 5.8.0 or newer.])
-fi
-AC_MSG_RESULT(yes)
-
-
-# Figure out where to install Perl modules.
-AC_MSG_CHECKING([for the Perl installation prefix])
-perlversion=$($perl -e 'use Config; print $Config{version};')
-perlarchname=$($perl -e 'use Config; print $Config{archname};')
-AC_SUBST(perllibdir, [${libdir}/perl5/site_perl/$perlversion/$perlarchname])
-AC_MSG_RESULT($perllibdir)
-
-# Look for libsodium.
-PKG_CHECK_MODULES([SODIUM], [libsodium], [CXXFLAGS="$SODIUM_CFLAGS $CXXFLAGS"])
-
-# Check for the required Perl dependencies (DBI and DBD::SQLite).
-perlFlags="-I$perllibdir"
-
-AC_ARG_WITH(dbi, AC_HELP_STRING([--with-dbi=PATH],
-  [prefix of the Perl DBI library]),
-  perlFlags="$perlFlags -I$withval")
-
-AC_ARG_WITH(dbd-sqlite, AC_HELP_STRING([--with-dbd-sqlite=PATH],
-  [prefix of the Perl DBD::SQLite library]),
-  perlFlags="$perlFlags -I$withval")
-
-AC_MSG_CHECKING([whether DBD::SQLite works])
-if ! $perl $perlFlags -e 'use DBI; use DBD::SQLite;' 2>&5; then
-    AC_MSG_RESULT(no)
-    AC_MSG_FAILURE([The Perl modules DBI and/or DBD::SQLite are missing.])
-fi
-AC_MSG_RESULT(yes)
-
-AC_SUBST(perlFlags)
-
-PKG_CHECK_MODULES([NIX], [nix-store])
-
-NEED_PROG([NIX], [nix])
-
-# Expand all variables in config.status.
-test "$prefix" = NONE && prefix=$ac_default_prefix
-test "$exec_prefix" = NONE && exec_prefix='${prefix}'
-for name in $ac_subst_vars; do
-    declare $name="$(eval echo "${!name}")"
-    declare $name="$(eval echo "${!name}")"
-    declare $name="$(eval echo "${!name}")"
-done
-
-rm -f Makefile.config
-ln -sfn ../mk mk
-
-AC_CONFIG_FILES([])
-AC_OUTPUT

perl/default.nix

@@ -1,39 +1,44 @@
-{ lib, fileset
+{ lib
+, fileset
 , stdenv
-, perl, perlPackages
+, perl
-, autoconf-archive, autoreconfHook, pkg-config
+, perlPackages
-, nix, curl, bzip2, xz, boost, libsodium, darwin
+, meson
+, ninja
+, pkg-config
+, nix
+, curl
+, bzip2
+, xz
+, boost
+, libsodium
+, darwin
 }:
 
 perl.pkgs.toPerlModule (stdenv.mkDerivation (finalAttrs: {
   name = "nix-perl-${nix.version}";
 
   src = fileset.toSource {
-    root = ../.;
+    root = ./.;
     fileset = fileset.unions ([
-      ../.version
-      ../m4
-      ../mk
       ./MANIFEST
-      ./Makefile
-      ./Makefile.config.in
-      ./configure.ac
       ./lib
-      ./local.mk
+      ./meson.build
+      ./meson_options.txt
     ] ++ lib.optionals finalAttrs.doCheck [
       ./.yath.rc
       ./t
     ]);
   };
 
-  nativeBuildInputs =
+  nativeBuildInputs = [
-    [ autoconf-archive
+    meson
-      autoreconfHook
+    ninja
     pkg-config
   ];
 
-  buildInputs =
+  buildInputs = [
-    [ nix
+    nix
     curl
     bzip2
     xz
@@ -50,12 +55,16 @@ perl.pkgs.toPerlModule (stdenv.mkDerivation (finalAttrs: {
     perlPackages.Test2Harness
   ];
 
-  configureFlags = [
+  mesonFlags = [
-    "--with-dbi=${perlPackages.DBI}/${perl.libPrefix}"
+    (lib.mesonOption "version" (builtins.readFile ../.version))
-    "--with-dbd-sqlite=${perlPackages.DBDSQLite}/${perl.libPrefix}"
+    (lib.mesonOption "dbi_path" "${perlPackages.DBI}/${perl.libPrefix}")
+    (lib.mesonOption "dbd_sqlite_path" "${perlPackages.DBDSQLite}/${perl.libPrefix}")
+    (lib.mesonEnable "tests" finalAttrs.doCheck)
+  ];
+
+  mesonCheckFlags = [
+    "--print-errorlogs"
   ];
 
   enableParallelBuilding = true;
-
-  postUnpack = "sourceRoot=$sourceRoot/perl";
 }))

perl/lib/Nix/meson.build

@@ -0,0 +1,59 @@
+# Nix-Perl Scripts
+#============================================================================
+
+
+
+# Sources
+#-------------------------------------------------
+
+nix_perl_store_xs = files('Store.xs')
+
+nix_perl_scripts = files(
+  'CopyClosure.pm',
+  'Manifest.pm',
+  'SSH.pm',
+  'Store.pm',
+  'Utils.pm',
+)
+
+foreach f : nix_perl_scripts
+  fs.copyfile(f)
+endforeach
+
+
+# Targets
+#---------------------------------------------------
+
+nix_perl_scripts += configure_file(
+  output : 'Config.pm',
+  input : 'Config.pm.in',
+  configuration : nix_perl_conf,
+)
+
+nix_perl_store_cc = custom_target(
+  'Store.cc',
+  output : 'Store.cc',
+  input : nix_perl_store_xs,
+  command : [xsubpp, '@INPUT@', '-output', '@OUTPUT@'],
+)
+
+# Build Nix::Store Library
+#-------------------------------------------------
+nix_perl_store_lib = library(
+  'Store',
+  sources : nix_perl_store_cc,
+  name_prefix  : '',
+  install : true,
+  install_mode : 'rwxr-xr-x',
+  install_dir : join_paths(nix_perl_install_dir, 'auto', 'Nix', 'Store'),
+  dependencies : nix_perl_store_dep_list,
+)
+
+
+# Install Scripts
+#---------------------------------------------------
+install_data(
+  nix_perl_scripts,
+  install_mode : 'rw-r--r--',
+  install_dir : join_paths(nix_perl_install_dir,'Nix'),
+)

perl/local.mk

@@ -1,46 +0,0 @@
-nix_perl_sources := \
-  lib/Nix/Store.pm \
-  lib/Nix/Manifest.pm \
-  lib/Nix/SSH.pm \
-  lib/Nix/CopyClosure.pm \
-  lib/Nix/Config.pm.in \
-  lib/Nix/Utils.pm
-
-nix_perl_modules := $(nix_perl_sources:.in=)
-
-$(foreach x, $(nix_perl_modules), $(eval $(call install-data-in, $(x), $(perllibdir)/Nix)))
-
-lib/Nix/Store.cc: lib/Nix/Store.xs
-	$(trace-gen) xsubpp $^ -output $@
-
-libraries += Store
-
-Store_DIR := lib/Nix
-
-Store_SOURCES := $(Store_DIR)/Store.cc
-
-Store_CXXFLAGS = \
-  $(NIX_CFLAGS) \
-  -I$(shell perl -e 'use Config; print $$Config{archlibexp};')/CORE \
-  -D_FILE_OFFSET_BITS=64 \
-  -Wno-unknown-warning-option -Wno-unused-variable -Wno-literal-suffix \
-  -Wno-reserved-user-defined-literal -Wno-duplicate-decl-specifier -Wno-pointer-bool-conversion
-
-Store_LDFLAGS := $(SODIUM_LIBS) $(NIX_LIBS)
-
-ifdef HOST_CYGWIN
-  archlib = $(shell perl -E 'use Config; print $$Config{archlib};')
-  libperl = $(shell perl -E 'use Config; print $$Config{libperl};')
-  Store_LDFLAGS += $(shell find ${archlib} -name ${libperl})
-endif
-
-Store_ALLOW_UNDEFINED = 1
-
-Store_FORCE_INSTALL = 1
-
-Store_INSTALL_DIR = $(perllibdir)/auto/Nix/Store
-
-clean-files += lib/Nix/Config.pm lib/Nix/Store.cc Makefile.config
-
-check: all
-	yath test

perl/meson.build

@@ -0,0 +1,152 @@
+# Nix-Perl Meson build
+#============================================================================
+
+
+# init project
+#============================================================================
+project (
+  'nix-perl',
+  'cpp',
+  meson_version : '>= 0.64.0',
+  license : 'LGPL-2.1-or-later',
+)
+
+# setup env
+#-------------------------------------------------
+fs = import('fs')
+nix_version = get_option('version')
+cpp = meson.get_compiler('cpp')
+nix_perl_conf = configuration_data()
+nix_perl_conf.set('PACKAGE_VERSION', nix_version)
+
+
+# set error arguments
+#-------------------------------------------------
+error_args = [
+  '-Wno-pedantic',
+  '-Wno-non-virtual-dtor',
+  '-Wno-unused-parameter',
+  '-Wno-variadic-macros',
+  '-Wdeprecated-declarations',
+  '-Wno-missing-field-initializers',
+  '-Wno-unknown-warning-option',
+  '-Wno-unused-variable',
+  '-Wno-literal-suffix',
+  '-Wno-reserved-user-defined-literal',
+  '-Wno-duplicate-decl-specifier',
+  '-Wno-pointer-bool-conversion',
+]
+
+add_project_arguments(
+  cpp.get_supported_arguments(error_args),
+  language : 'cpp',
+)
+
+
+# set install directories
+#-------------------------------------------------
+prefix = get_option('prefix')
+libdir = join_paths(prefix, get_option('libdir'))
+
+# Dependencies
+#============================================================================
+
+# Required Programs
+#-------------------------------------------------
+xz = find_program('xz')
+xsubpp = find_program('xsubpp')
+perl = find_program('perl')
+curl = find_program('curl')
+yath = find_program('yath', required : false)
+
+# Required Libraries
+#-------------------------------------------------
+bzip2_dep = dependency('bzip2')
+curl_dep = dependency('libcurl')
+libsodium_dep = dependency('libsodium')
+# nix_util_dep = dependency('nix-util')
+nix_store_dep = dependency('nix-store')
+
+
+# Finding Perl Headers is a pain. as they do not have
+# pkgconfig available, are not in a standard location,
+# and are installed into a version folder. Use the
+# Perl binary to give hints about perl include dir.
+#-------------------------------------------------
+perl_archname = run_command(
+  perl, '-e', 'use Config; print $Config{archname};', check: true).stdout()
+perl_version = run_command(
+  perl, '-e', 'use Config; print $Config{version};', check: true).stdout()
+perl_archlibexp = run_command(
+  perl, '-e', 'use Config; print $Config{archlibexp};', check: true).stdout()
+perl_site_libdir = run_command(
+  perl, '-e', 'use Config; print $Config{installsitearch};', check: true).stdout()
+nix_perl_install_dir = join_paths(
+  libdir, 'perl5', 'site_perl', perl_version, perl_archname)
+
+
+# print perl hints for logs
+#-------------------------------------------------
+message('Perl archname: @0@'.format(perl_archname))
+message('Perl version: @0@'.format(perl_version))
+message('Perl archlibexp: @0@'.format(perl_archlibexp))
+message('Perl install site: @0@'.format(perl_site_libdir))
+message('Assumed Nix-Perl install dir: @0@'.format(nix_perl_install_dir))
+
+# Now find perl modules
+#-------------------------------------------------
+perl_check_dbi = run_command(
+  perl,
+  '-e', 'use DBI; use DBD::SQLite;',
+  '-I@0@'.format(get_option('dbi_path')),
+  '-I@0@'.format(get_option('dbd_sqlite_path')),
+  check: true
+)
+
+if perl_check_dbi.returncode() == 2
+  error('The Perl modules DBI and/or DBD::SQLite are missing.')
+else
+  message('Found Perl Modules: DBI, DBD::SQLite.')
+endif
+
+
+
+# declare perl dependency
+#-------------------------------------------------
+perl_dep = declare_dependency(
+  dependencies : cpp.find_library(
+  'perl',
+  has_headers : [
+    join_paths(perl_archlibexp, 'CORE', 'perl.h'),
+    join_paths(perl_archlibexp, 'CORE', 'EXTERN.h')],
+    dirs : [
+      join_paths(perl_archlibexp, 'CORE'),
+    ],
+  ),
+  include_directories : join_paths(perl_archlibexp, 'CORE'),
+)
+
+# declare dependencies
+#-------------------------------------------------
+nix_perl_store_dep_list = [
+  perl_dep,
+  bzip2_dep,
+  curl_dep,
+  libsodium_dep,
+  nix_store_dep,
+]
+
+# # build
+# #-------------------------------------------------
+subdir('lib/Nix')
+
+if get_option('tests').enabled()
+  subdir('t')
+  test(
+    'nix-perl-test',
+    yath,
+    args : [
+      '-I=@0@'.format( join_paths( meson.current_build_dir(), 'lib', 'Nix') ),
+    ],
+  )
+endif

perl/meson_options.txt

@@ -0,0 +1,32 @@
+# Nix-Perl build options
+#============================================================================
+
+
+# compiler args
+#============================================================================
+
+option(
+  'version',
+  type : 'string',
+  description : 'nix-perl version')
+
+option(
+  'tests',
+  type : 'feature',
+  value : 'disabled',
+  description : 'run nix-perl tests')
+
+
+# Location of Perl Modules
+#============================================================================
+option(
+  'dbi_path',
+  type : 'string',
+  value : '/usr',
+  description : 'path to perl::dbi')
+
+option(
+  'dbd_sqlite_path',
+  type : 'string',
+  value : '/usr',
+  description : 'path to perl::dbd-SQLite')

perl/t/meson.build

@@ -0,0 +1,15 @@
+# Nix-Perl Tests
+#============================================================================
+
+
+# src
+#---------------------------------------------------
+
+nix_perl_tests = files(
+  'init.t',
+)
+
+
+foreach f : nix_perl_tests
+  fs.copyfile(f)
+endforeach