From 97df7f63c2f27f33e3507b70f7b590fa14cdf7c0 Mon Sep 17 00:00:00 2001
From: Thomas Debesse <dev@illwieckz.net>
Date: Tue, 12 Nov 2019 10:34:49 +0100
Subject: [PATCH] add simple easy-builder script

---
 README.md    |  23 +++++++++++-
 easy-builder | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 125 insertions(+), 1 deletion(-)
 create mode 100755 easy-builder

diff --git a/README.md b/README.md
index 192d2826..04d4ff14 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,28 @@ git submodule update --init --recursive
 ```
 
 
-## Compiling
+## Simple compilation
+
+
+### Easy builder assistant
+
+If you have standard needs and use well-known platform and operating system, you may try the provided `easy-builder` script which may be enough for you:
+
+```sh
+./easy-builder
+```
+
+If anything goes right, you'll find your netradiant build in `install/` subdirectory.
+
+If you need to build a debug build (to get help from a developer, for example), you can do it that way:
+
+```sh
+./easy-builder --debug
+```
+
+By default, build tools and compilers use the `build/` directory as workspace.
+
+## Advanced compilation
 
 ### Initial build
 
diff --git a/easy-builder b/easy-builder
new file mode 100755
index 00000000..7966bd26
--- /dev/null
+++ b/easy-builder
@@ -0,0 +1,103 @@
+#! /usr/bin/env bash
+
+# This script is meant to be kept small and simple
+# If you think about adding features, it's probably a bad idea
+
+set -e # exit if a command fails
+set -o pipefail # Will return the exit status of make if it fails
+
+project_source_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
+
+job_count='4'
+if command -v nproc >/dev/null
+then
+	job_count="$(nproc)"
+fi
+
+build_dir="${project_source_dir}/build${SUBDIR:+/${SUBDIR}}"
+install_dir="${project_source_dir}/install${SUBDIR:+/${SUBDIR}}"
+
+build_type='Release'
+
+cmake_user_opts=''
+while [ ! -z ${1} ]
+do
+    case "${1}" in
+    '-j'*)
+        job_count="${1:2}"
+        shift
+        ;;
+    '--debug')
+        build_type='Debug'
+        shift
+        ;;
+    *)
+	cmake_user_opts+=" ${1}"
+	shift
+        ;;
+    esac
+done
+
+cmake_opts=''
+case "$(uname -s)" in
+	'Linux')
+		# no tweak required
+		;;
+	'FreeBSD')
+		if [ -f "$(ls '/usr/local/bin/g++'* | sort | tail -n1)" ]
+		then
+			gcc_version="$(ls '/usr/local/bin/g++'* | sort | tail -n1 | sed -e 's/.*[^0-9]\([0-9][0-9]*\)$/\1/')"
+			cmake_opts+=" -DCMAKE_C_COMPILER=/usr/local/bin/gcc${gcc_version}"
+			cmake_opts+=" -DCMAKE_CXX_COMPILER=/usr/local/bin/g++${gcc_version}"
+		else
+			printf "WARNING: GCC is recommended: if build fails, install GCC and retry\n" >&2
+		fi
+		;;
+	'Darwin')
+		if [ -f "$(ls '/usr/local/bin/g++-'* | sort | tail -n1)" ]
+		then
+			gcc_version="$(ls '/usr/local/bin/g++-'* | sort | tail -n1 | sed -e 's/.*[^0-9]\([0-9][0-9]*\)$/\1/')"
+			cmake_opts+=" -DCMAKE_C_COMPILER=/usr/local/bin/gcc-${gcc_version}"
+			cmake_opts+=" -DCMAKE_CXX_COMPILER=/usr/local/bin/g++-${gcc_version}"
+		else
+			printf "WARNING: GCC is recommended: if build fails, install GCC and retry\n" >&2
+		fi
+		;;
+	'MSYS_NT-'*)
+		# no tweak required
+		;;
+	'CYGWIN_NT-'*|'MINGW'*'_NT-'*)
+		printf "WARNING: system is not tested: if build fails, use MSYS2 instead\n" >&2
+		;;
+	*)
+		printf "WARNING: system is not tested\n" >&2
+		;;
+esac
+
+fetch_submodules_cmd=''
+if ! [ -f "${project_source_dir}/libs/crunch/inc/crn_decomp.h" ]
+then
+	fetch_submodules_cmd='git submodule update --init --recursive'
+fi
+
+set -x
+
+cd "${project_source_dir}"
+
+${fetch_submodules_cmd}
+
+cmake \
+	-G'Unix Makefiles' \
+	-H'.' \
+	-B"${build_dir}" \
+	-D'CMAKE_INSTALL_PREFIX'="${install_dir}" \
+	-D'CMAKE_BUILD_TYPE'="${build_type}" \
+	${cmake_opts} \
+	${cmake_user_opts} \
+	${@}
+
+cmake \
+	--build "${build_dir}" \
+	-- \
+	-j"${job_count}" \
+	install
-- 
2.39.2