From c0fd2ff191565bd0b1f9a3204dc992c93e11f63c Mon Sep 17 00:00:00 2001
From: Kurt Jaeger <pi@FreeBSD.org>
Date: Sat, 16 Feb 2019 18:52:37 +0000
Subject: [PATCH] New port: devel/gn

GN is a meta-build system that generates build files for Ninja.

WWW: https://gn.googlesource.com/gn/

PR:		234309
Submitted by:	Oleh Hushchenkov <o.hushchenkov@gmail.com>
---
 devel/Makefile                    |  1 +
 devel/gn/Makefile                 | 35 +++++++++++++++++++++++++++++++
 devel/gn/distinfo                 |  3 +++
 devel/gn/files/patch-build_gen.py | 29 +++++++++++++++++++++++++
 devel/gn/pkg-descr                |  3 +++
 5 files changed, 71 insertions(+)
 create mode 100644 devel/gn/Makefile
 create mode 100644 devel/gn/distinfo
 create mode 100644 devel/gn/files/patch-build_gen.py
 create mode 100644 devel/gn/pkg-descr

diff --git a/devel/Makefile b/devel/Makefile
index fdb6f3a4c252..fe1c430f6c11 100644
--- a/devel/Makefile
+++ b/devel/Makefile
@@ -814,6 +814,7 @@
     SUBDIR += glslang
     SUBDIR += glui
     SUBDIR += gmake
+    SUBDIR += gn
     SUBDIR += gnatcoll
     SUBDIR += gnatpython
     SUBDIR += gnome-builder
diff --git a/devel/gn/Makefile b/devel/gn/Makefile
new file mode 100644
index 000000000000..664afb317d02
--- /dev/null
+++ b/devel/gn/Makefile
@@ -0,0 +1,35 @@
+# $FreeBSD$
+
+PORTNAME=	gn
+DISTVERSIONPREFIX=	v
+DISTVERSION=	1529
+CATEGORIES=	devel
+
+MAINTAINER=	o.hushchenkov@gmail.com
+COMMENT=	Gn meta build framework - standalone version
+
+LICENSE=	BSD3CLAUSE
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+USES=		compiler:c++14-lang ninja python:2.7,build
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	cglogic # mirror
+
+CONFLICTS_INSTALL=	chromimum-gn*
+
+PLIST_FILES=	bin/gn
+
+do-configure:
+	cd ${WRKSRC} && GN_VERSION=${PORTVERSION} ${PYTHON_CMD} build/gen.py
+
+do-build:
+	cd ${WRKSRC} && ninja -C out
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/out/gn ${STAGEDIR}${PREFIX}/bin
+
+do-test: build
+	cd ${WRKSRC} && ./out/gn_unittests
+
+.include <bsd.port.mk>
diff --git a/devel/gn/distinfo b/devel/gn/distinfo
new file mode 100644
index 000000000000..39664914eb4d
--- /dev/null
+++ b/devel/gn/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1550242353
+SHA256 (cglogic-gn-v1529_GH0.tar.gz) = 8f292d3c3a6ea6d6f9b6d41f6e75c360414a7283796905d1b66f41617e2345d2
+SIZE (cglogic-gn-v1529_GH0.tar.gz) = 916888
diff --git a/devel/gn/files/patch-build_gen.py b/devel/gn/files/patch-build_gen.py
new file mode 100644
index 000000000000..ba245bbec3f9
--- /dev/null
+++ b/devel/gn/files/patch-build_gen.py
@@ -0,0 +1,29 @@
+--- build/gen.py.orig	2019-02-12 17:36:05 UTC
++++ build/gen.py
+@@ -115,24 +115,15 @@ def main(argv):
+ 
+ 
+ def GenerateLastCommitPosition(host, header):
+-  ROOT_TAG = 'initial-commit'
+-  describe_output = subprocess.check_output(
+-      ['git', 'describe', 'HEAD', '--match', ROOT_TAG], shell=host.is_windows(),
+-      cwd=REPO_ROOT)
+-  mo = re.match(ROOT_TAG + '-(\d+)-g([0-9a-f]+)', describe_output)
+-  if not mo:
+-    raise ValueError(
+-        'Unexpected output from git describe when generating version header')
+-
+   contents = '''// Generated by build/gen.py.
+ 
+ #ifndef OUT_LAST_COMMIT_POSITION_H_
+ #define OUT_LAST_COMMIT_POSITION_H_
+ 
+-#define LAST_COMMIT_POSITION "%s (%s)"
++#define LAST_COMMIT_POSITION "%s"
+ 
+ #endif  // OUT_LAST_COMMIT_POSITION_H_
+-''' % (mo.group(1), mo.group(2))
++''' % (os.environ['GN_VERSION'])
+ 
+   # Only write/touch this file if the commit position has changed.
+   old_contents = ''
diff --git a/devel/gn/pkg-descr b/devel/gn/pkg-descr
new file mode 100644
index 000000000000..382e3eac0d5a
--- /dev/null
+++ b/devel/gn/pkg-descr
@@ -0,0 +1,3 @@
+GN is a meta-build system that generates build files for Ninja.
+
+WWW: https://gn.googlesource.com/gn/