[libgepub] Port to meson build system

[Daniel Garcia Moreno <danigm src gnome org>]

commit 97b173c8149105631277dee71c44feb8d2d86a40
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Tue May 23 13:37:45 2017 +0200

    Port to meson build system
    
    https://bugzilla.gnome.org/show_bug.cgi?id=782994

 configure_meson      |  180 ++++++++++++++++++++++++++++++++++++++++++++++++++
 libgepub/meson.build |  115 ++++++++++++++++++++++++++++++++
 meson.build          |  133 +++++++++++++++++++++++++++++++++++++
 meson_options.txt    |    1 +
 tests/meson.build    |   20 ++++++
 5 files changed, 449 insertions(+), 0 deletions(-)
---
diff --git a/configure_meson b/configure_meson
new file mode 100755
index 0000000..8ac2753
--- /dev/null
+++ b/configure_meson
@@ -0,0 +1,180 @@
+#!/bin/bash
+# configure script adapter for Meson
+# Based on build-api: https://github.com/cgwalters/build-api
+# Copyright 2010, 2011, 2013 Colin Walters <walters verbum org>
+# Copyright 2016, 2017 Emmanuele Bassi
+# Copyright 2017 Iñigo Martínez <inigomartinez gmail com>
+# Licensed under the new-BSD license (http://www.opensource.org/licenses/bsd-license.php)
+
+# Build API variables:
+
+# Little helper function for reading args from the commandline.
+# it automatically handles -a b and -a=b variants, and returns 1 if
+# we need to shift $3.
+read_arg() {
+    # $1 = arg name
+    # $2 = arg value
+    # $3 = arg parameter
+    local rematch='^[^=]*=(.*)$'
+    if [[ $2 =~ $rematch ]]; then
+        read "$1" <<< "${BASH_REMATCH[1]}"
+    else
+        read "$1" <<< "$3"
+        # There is no way to shift our callers args, so
+        # return 1 to indicate they should do it instead.
+        return 1
+    fi
+}
+
+sanitycheck() {
+    # $1 = arg name
+    # $1 = arg command
+    # $2 = arg alternates
+    local cmd=$( which $2 2>/dev/null )
+
+    if [ -x "$cmd" ]; then
+        read "$1" <<< "$cmd"
+        return 0
+    fi
+
+    test -z $3 || {
+        for alt in $3; do
+            cmd=$( which $alt 2>/dev/null )
+
+            if [ -x "$cmd" ]; then
+                read "$1" <<< "$cmd"
+                return 0
+            fi
+        done
+    }
+
+    echo -e "\e[1;31mERROR\e[0m: Command '$2' not found"
+    exit 1
+}
+
+checkoption() {
+    # $1 = arg
+    option="${1#*--}"
+    action="${option%%-*}"
+    name="${option#*-}"
+    if [ ${default_options[$name]+_} ]; then
+        case "$action" in
+            enable) meson_options[$name]=true;;
+            disable) meson_options[$name]=false;;
+            *) echo -e "\e[1;33mINFO\e[0m: Ignoring unknown action '$action'";;
+        esac
+    else
+        echo -e "\e[1;33mINFO\e[0m: Ignoring unknown option '$option'"
+    fi
+}
+
+echooption() {
+    # $1 = option
+    if [ ${meson_options[$1]+_} ]; then
+        echo ${meson_options[$1]}
+    elif [ ${default_options[$1]+_} ]; then
+        echo ${default_options[$1]}
+    fi
+}
+
+sanitycheck MESON 'meson'
+sanitycheck MESONTEST 'mesontest'
+sanitycheck NINJA 'ninja' 'ninja-build'
+
+declare -A default_options=(
+    ['introspection']=true
+)
+
+declare -A meson_options
+
+while (($# > 0)); do
+    case "${1%%=*}" in
+        --prefix) read_arg prefix "$@" || shift;;
+        --bindir) read_arg bindir "$@" || shift;;
+        --sbindir) read_arg sbindir "$@" || shift;;
+        --libexecdir) read_arg libexecdir "$@" || shift;;
+        --datarootdir) read_arg datarootdir "$@" || shift;;
+        --datadir) read_arg datadir "$@" || shift;;
+        --sysconfdir) read_arg sysconfdir "$@" || shift;;
+        --libdir) read_arg libdir "$@" || shift;;
+        --mandir) read_arg mandir "$@" || shift;;
+        --includedir) read_arg includedir "$@" || shift;;
+        *) checkoption $1;;
+    esac
+    shift
+done
+
+# Defaults
+test -z ${prefix} && prefix="/usr/local"
+test -z ${bindir} && bindir=${prefix}/bin
+test -z ${sbindir} && sbindir=${prefix}/sbin
+test -z ${libexecdir} && libexecdir=${prefix}/bin
+test -z ${datarootdir} && datarootdir=${prefix}/share
+test -z ${datadir} && datadir=${datarootdir}
+test -z ${sysconfdir} && sysconfdir=${prefix}/etc
+test -z ${libdir} && libdir=${prefix}/lib
+test -z ${mandir} && mandir=${prefix}/share/man
+test -z ${includedir} && includedir=${prefix}/include
+
+# The source directory is the location of this file
+srcdir=$(dirname $0)
+
+# The build directory is the current location
+builddir=`pwd`
+
+# If we're calling this file from the source directory then
+# we automatically create a build directory and ensure that
+# both Meson and Ninja invocations are relative to that
+# location
+if [[ -f "${builddir}/meson.build" ]]; then
+    mkdir -p _build
+    builddir="${builddir}/_build"
+    NINJA_OPT="-C ${builddir}"
+fi
+
+# Wrapper Makefile for Ninja
+cat > Makefile <<END
+# Generated by configure; do not edit
+
+all:
+       CC="\$(CC)" CXX="\$(CXX)" ${NINJA} ${NINJA_OPT}
+
+install:
+       DESTDIR="\$(DESTDIR)" ${NINJA} ${NINJA_OPT} install
+
+check:
+       ${MESONTEST} ${NINJA_OPT}
+END
+
+echo "
+
+        libgepub
+        ========
+
+        meson:         ${MESON}
+        ninja:         ${NINJA}
+        prefix:        ${prefix}
+        compiler:      ${CC}
+        global flags:  ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}
+        introspection: $(echooption introspection)
+
+        Now type '${NINJA} -C ${builddir}' to build
+"
+
+cmd_options=""
+for key in "${!meson_options[@]}"; do
+    cmd_options="$cmd_options -Denable-$key=${meson_options[$key]}"
+done
+
+exec ${MESON} \
+    --prefix=${prefix} \
+    --libdir=${libdir} \
+    --libexecdir=${libexecdir} \
+    --datadir=${datadir} \
+    --sysconfdir=${sysconfdir} \
+    --bindir=${bindir} \
+    --includedir=${includedir} \
+    --mandir=${mandir} \
+    ${cmd_options} \
+    ${builddir} \
+    ${srcdir}
diff --git a/libgepub/meson.build b/libgepub/meson.build
new file mode 100644
index 0000000..7b74292
--- /dev/null
+++ b/libgepub/meson.build
@@ -0,0 +1,115 @@
+headers = [
+  'gepub-widget.h',
+  'gepub-archive.h',
+  'gepub-text-chunk.h',
+  'gepub-doc.h',
+  'gepub.h'
+]
+
+install_headers(
+  headers,
+  subdir: gepub_pkgincludedir
+)
+
+private_headers = [
+  'gepub-utils.h'
+]
+
+sources = [
+  'gepub-widget.c',
+  'gepub-archive.c',
+  'gepub-text-chunk.c',
+  'gepub-doc.c',
+  'gepub-utils.c'
+]
+
+ldflags = [
+  '-no-undefined',
+  '-export-symbols-regex "^gepub_*"'
+]
+
+gepub_ldflags = []
+
+if host_machine.system().contains('linux')
+  foreach ldflag: ldflags
+    if cc.has_argument(ldflag)
+      gepub_ldflags += ldflag
+    endif
+  endforeach
+endif
+
+libtype = get_option('default_library')
+
+if libtype == 'static'
+  libgepub = static_library(
+    'gepub',
+    sources: sources + headers + private_headers,
+    include_directories: top_inc,
+    dependencies: gepub_dep,
+    link_args: gepub_ldflags,
+    install: true,
+    install_dir: gepub_libdir
+  )
+else
+  libgepub = shared_library(
+    'gepub',
+    sources: sources + headers + private_headers,
+    version: libversion,
+    soversion: soversion,
+    include_directories: top_inc,
+    dependencies: gepub_dep,
+    link_args: gepub_ldflags,
+    install: true,
+    install_dir: gepub_libdir
+  )
+endif
+
+libgepub_dep = declare_dependency(
+  link_with: libgepub,
+  include_directories: include_directories('.'),
+  dependencies: gepub_dep
+)
+
+pkg.generate(
+  libraries: libgepub,
+  version: gepub_version,
+  name: meson.project_name(),
+  description: 'epub Documents library',
+  filebase: meson.project_name(),
+  subdirs: meson.project_name(),
+  requires: 'gio-2.0',
+  requires_private: [
+    'libxml-2.0',
+    'libarchive'
+  ]
+)
+
+if get_option('enable-introspection') and libtype == 'shared'
+  gir_inc = [
+    'GObject-2.0',
+    'libxml2-2.0',
+    'WebKit2-4.0'
+  ]
+
+  gir_extra_args = [
+    '--warn-all'
+  ]
+
+  gir_dir = join_paths(gepub_datadir, '@0@-@1@'.format('gir', gepub_gir_version))
+  typelib_dir = join_paths(gepub_libdir, '@0@-@1@'.format('girepository', gepub_gir_version))
+
+  gnome.generate_gir(
+    libgepub,
+    sources: sources + headers + private_headers,
+    namespace: gepub_gir_ns,
+    nsversion: gepub_version,
+    identifier_prefix: gepub_gir_ns,
+    symbol_prefix: gepub_gir_ns.to_lower(),
+    includes: gir_inc,
+    include_directories: top_inc,
+    install: true,
+    install_dir_gir: gir_dir,
+    install_dir_typelib: typelib_dir,
+    extra_args: gir_extra_args
+  )
+endif
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..eff8b50
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,133 @@
+project(
+  'libgepub', 'c',
+  version: '0.4',
+  license: 'LGPL2+',
+  default_options: [
+    'buildtype=debugoptimized',
+    'c_std=gnu99',
+    'warning_level=1'
+  ],
+  meson_version: '>= 0.38.1'
+)
+
+gepub_version = meson.project_version()
+version_array = gepub_version.split('.')
+gepub_major_version = version_array[0].to_int()
+gepub_minor_version = version_array[1].to_int()
+
+gepub_gir_ns = 'Gepub'
+gepub_gir_version = '1.0'
+
+gepub_prefix = get_option('prefix')
+gepub_datadir = join_paths(gepub_prefix, get_option('datadir'))
+gepub_libdir = join_paths(gepub_prefix, get_option('libdir'))
+gepub_includedir = join_paths(gepub_prefix, get_option('includedir'))
+
+gepub_pkgincludedir = join_paths(gepub_includedir, meson.project_name())
+
+soversion = 0
+current = 0
+revision = 0
+libversion = '@0@.@1@.@2@'.format(soversion, current, revision)
+
+cc = meson.get_compiler('c')
+
+conf = configuration_data()
+
+# package
+conf.set_quoted('PACKAGE', meson.project_name())
+conf.set_quoted('PACKAGE_BUGREPORT', 'danigm wadobo com')
+conf.set_quoted('PACKAGE_NAME', meson.project_name())
+conf.set_quoted('PACKAGE_STRING', '@0@ @1@'.format(meson.project_name(), gepub_version))
+conf.set_quoted('PACKAGE_TARNAME', meson.project_name())
+conf.set_quoted('PACKAGE_URL', '')
+conf.set_quoted('PACKAGE_VERSION', gepub_version)
+conf.set_quoted('PACKAGE_API_VERSION', gepub_version)
+conf.set_quoted('VERSION', gepub_version)
+
+# headers
+conf.set('HAVE_DLFCN_H', cc.has_header('dlfcn.h'))
+conf.set('HAVE_INTTYPES_H', cc.has_header('inttypes.h'))
+conf.set('HAVE_MEMORY_H', cc.has_header('memory.h'))
+conf.set('HAVE_STDINT_H', cc.has_header('stdint.h'))
+conf.set('HAVE_STDLIB_H', cc.has_header('stdlib.h'))
+conf.set('HAVE_STRINGS_H', cc.has_header('strings.h'))
+conf.set('HAVE_STRING_H', cc.has_header('string.h'))
+conf.set('HAVE_SYS_STAT_H', cc.has_header('sys/stat.h'))
+conf.set('HAVE_SYS_TYPES_H', cc.has_header('sys/types.h'))
+conf.set('HAVE_UNISTD_H', cc.has_header('unistd.h'))
+
+# Compiler flags
+test_cflags = [
+  '-fno-strict-aliasing',
+  '-Wall',
+  '-Warray-bounds',
+  '-Wcast-align',
+  '-Wdeclaration-after-statement',
+  '-Wextra',
+  '-Wformat-nonliteral',
+  '-Wformat-security',
+  '-Wformat=2',
+  '-Wimplicit-function-declaration',
+  '-Winit-self',
+  '-Winline',
+  '-Wmissing-declarations',
+  '-Wmissing-format-attribute',
+  '-Wmissing-include-dirs',
+  '-Wmissing-noreturn',
+  '-Wmissing-prototypes',
+  '-Wnested-externs',
+  '-Wno-error=missing-field-initializers',
+  '-Wno-error=unused-parameter',
+  '-Wno-missing-field-initializers',
+  '-Wno-unused-parameter',
+  '-Wold-style-definition',
+  '-Wpacked',
+  '-Wpointer-arith',
+  '-Wredundant-decls',
+  '-Wreturn-type',
+  '-Wshadow',
+  '-Wsign-compare',
+  '-Wstrict-aliasing',
+  '-Wstrict-prototypes',
+  '-Wswitch-default',
+  '-Wswitch-enum',
+  '-Wundef',
+  '-Wunused-but-set-variable',
+  '-Wwrite-strings'
+]
+
+common_flags = [
+  '-DHAVE_CONFIG_H'
+]
+
+foreach cflag: test_cflags
+  if cc.has_argument(cflag)
+    common_flags += [cflag]
+  endif
+endforeach
+
+add_global_arguments(common_flags, language: 'c')
+
+gepub_dep = [
+  dependency('webkit2gtk-4.0'),
+  dependency('libsoup-2.4'),
+  dependency('glib-2.0'),
+  dependency('gobject-2.0'),
+  dependency('gio-2.0'),
+  dependency('libxml-2.0'),
+  dependency('libarchive')
+]
+
+configure_file(
+  output : 'config.h',
+  configuration : conf
+)
+
+gnome = import('gnome')
+pkg = import('pkgconfig')
+
+top_inc = include_directories('.')
+
+subdir('libgepub')
+subdir('tests')
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..cdb100d
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1 @@
+option('enable-introspection', type: 'boolean', value: true, description: 'Enable GObject Introspection 
(depends on GObject)')
diff --git a/tests/meson.build b/tests/meson.build
new file mode 100644
index 0000000..b6bdd14
--- /dev/null
+++ b/tests/meson.build
@@ -0,0 +1,20 @@
+gepub_tests = [
+  'test-gepub'
+]
+
+gepub_test_dep = [
+  gepub_dep,
+  libgepub_dep,
+  dependency('gtk+-3.0')
+]
+
+foreach gepub_test: gepub_tests
+  exe = executable(
+    gepub_test,
+    '@0@.c'.format(gepub_test),
+    include_directories: top_inc,
+    dependencies: gepub_test_dep
+  )
+
+  test(gepub_test, exe)
+endforeach