[frogr/meson: 11/16] meson: Add a configure script adapter to comply with the build API [1]



commit 7cbe3111a3d0ec0e3c3875e55446c504e885347f
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Tue May 23 20:39:14 2017 +0100

    meson: Add a configure script adapter to comply with the build API [1]
    
    Borrowed from gnome-dictionary and adapted to frogr.
    
    [1] https://github.com/cgwalters/build-api

 configure |  156 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 156 insertions(+), 0 deletions(-)
---
diff --git a/configure b/configure
new file mode 100755
index 0000000..fd6046d
--- /dev/null
+++ b/configure
@@ -0,0 +1,156 @@
+#!/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 Mario Sanchez Prada
+# 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 '$2' not found"
+    exit 1
+}
+
+sanitycheck MESON 'meson'
+sanitycheck MESONTEST 'mesontest'
+sanitycheck NINJA 'ninja' 'ninja-build'
+
+enable_header_bar='-Denable-header-bar=true'
+enable_video='-Denable-video=true'
+
+while (($# > 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;;
+       --enable-header-bar) enable_header_bar='-Denable-header-bar=true';;
+       --disable-header-bar) enable_header_bar='-Denable-header-bar=false';;
+       --enable-video) enable_video='-Denable-video=true';;
+       --disable-video) enable_video='-Denable-video=false';;
+       *) echo -e "\e[1;33mINFO\e[0m: Ignoring unknown option '$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 "Summary:"
+echo "  meson:....... ${MESON}"
+echo "  ninja:....... ${NINJA}"
+echo "  prefix:...... ${prefix}"
+echo "  bindir:...... ${bindir}"
+echo "  sbindir:..... ${sbindir}"
+echo "  libexecdir:.. ${libexecdir}"
+echo "  datarootdir:. ${datarootdir}"
+echo "  datadir:..... ${datadir}"
+echo "  sysconfdir:.. ${sysconfdir}"
+echo "  libdir:...... ${libdir}"
+echo "  mandir:...... ${mandir}"
+echo "  includedir:.. ${includedir}"
+echo "  additional:.."
+echo "    - ${enable_header_bar} ${enable_video}"
+
+exec ${MESON} \
+       --prefix=${prefix} \
+       --libdir=${libdir} \
+       --libexecdir=${libexecdir} \
+       --datadir=${datadir} \
+       --sysconfdir=${sysconfdir} \
+       --bindir=${bindir} \
+       --includedir=${includedir} \
+       --mandir=${mandir} \
+       --default-library shared \
+       ${enable_header_bar} \
+       ${enable_video} \
+       ${builddir} \
+       ${srcdir}
+
+# vim: ai ts=8 noet sts=2 ft=sh


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