enh: Bazel BUILD, add WORKSPACE file (#192)
diff --git a/BUILD b/BUILD
index cf85354..0a5c9eb 100644
--- a/BUILD
+++ b/BUILD
@@ -1,106 +1,12 @@
-# Bazel build file for gflags
+# Bazel (http://bazel.io/) BUILD file for gflags.
#
# See INSTALL.md for instructions for adding gflags to a Bazel workspace.
licenses(["notice"])
-cc_library(
- name = "gflags",
- srcs = [
- "src/gflags.cc",
- "src/gflags_completions.cc",
- "src/gflags_reporting.cc",
- "src/mutex.h",
- "src/util.h",
- ":config_h",
- ":gflags_completions_h",
- ":gflags_declare_h",
- ":gflags_h",
- ":includes",
- ],
- hdrs = ["gflags.h"],
- copts = [
- # The config.h gets generated to the package directory of
- # GENDIR, and we don't want to put it into the includes
- # otherwise the dependent may pull it in by accident.
- "-I$(GENDIR)/" + PACKAGE_NAME,
- "-Wno-sign-compare",
- "-DHAVE_STDINT_H",
- "-DHAVE_SYS_TYPES_H",
- "-DHAVE_INTTYPES_H",
- "-DHAVE_SYS_STAT_H",
- "-DHAVE_UNISTD_H",
- "-DHAVE_FNMATCH_H",
- "-DHAVE_STRTOLL",
- "-DHAVE_STRTOQ",
- "-DHAVE_PTHREAD",
- "-DHAVE_RWLOCK",
- "-DGFLAGS_INTTYPES_FORMAT_C99",
- ],
- includes = [
- "include",
- ],
- linkopts = ["-lpthread"],
- visibility = ["//visibility:public"],
-)
+exports_files(["src/gflags_complections.sh", "COPYING.txt"])
-genrule(
- name = "config_h",
- srcs = [
- "src/config.h.in",
- ],
- outs = [
- "config.h",
- ],
- cmd = "awk '{ gsub(/^#cmakedefine/, \"//cmakedefine\"); print; }' $(<) > $(@)",
-)
-
-genrule(
- name = "gflags_h",
- srcs = [
- "src/gflags.h.in",
- ],
- outs = [
- "gflags.h",
- ],
- cmd = "awk '{ gsub(/@(GFLAGS_ATTRIBUTE_UNUSED|INCLUDE_GFLAGS_NS_H)@/, \"\"); print; }' $(<) > $(@)",
-)
-
-genrule(
- name = "gflags_completions_h",
- srcs = [
- "src/gflags_completions.h.in",
- ],
- outs = [
- "gflags_completions.h",
- ],
- cmd = "awk '{ gsub(/@GFLAGS_NAMESPACE@/, \"gflags\"); print; }' $(<) > $(@)",
-)
-
-genrule(
- name = "gflags_declare_h",
- srcs = [
- "src/gflags_declare.h.in",
- ],
- outs = [
- "gflags_declare.h",
- ],
- cmd = ("awk '{ " +
- "gsub(/@GFLAGS_NAMESPACE@/, \"gflags\"); " +
- "gsub(/@(HAVE_STDINT_H|HAVE_SYS_TYPES_H|HAVE_INTTYPES_H|GFLAGS_INTTYPES_FORMAT_C99)@/, \"1\"); " +
- "gsub(/@([A-Z0-9_]+)@/, \"0\"); " +
- "print; }' $(<) > $(@)"),
-)
-
-genrule(
- name = "includes",
- srcs = [
- ":gflags_h",
- ":gflags_declare_h",
- ],
- outs = [
- "include/gflags/gflags.h",
- "include/gflags/gflags_declare.h",
- ],
- cmd = "mkdir -p $(@D)/include/gflags && cp $(SRCS) $(@D)/include/gflags",
-)
+load(":bazel/gflags.bzl", "gflags_sources", "gflags_library")
+(hdrs, srcs) = gflags_sources(namespace=["gflags", "google"])
+gflags_library(hdrs=hdrs, srcs=srcs, threads=0)
+gflags_library(hdrs=hdrs, srcs=srcs, threads=1)
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 0000000..f3707e9
--- /dev/null
+++ b/WORKSPACE
@@ -0,0 +1,6 @@
+# Copyright 2006 Google Inc. All Rights Reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the COPYING.txt file.
+
+# Bazel (http://bazel.io/) WORKSPACE file for gflags.
+workspace(name="com_github_gflags_gflags")
diff --git a/bazel/gflags.bzl b/bazel/gflags.bzl
new file mode 100644
index 0000000..6a89f88
--- /dev/null
+++ b/bazel/gflags.bzl
@@ -0,0 +1,92 @@
+# ------------------------------------------------------------------------------
+# Add native rules to configure source files
+def gflags_sources(namespace=["google", "gflags"]):
+ native.genrule(
+ name = "config_h",
+ srcs = ["src/config.h.in"],
+ outs = ["config.h"],
+ cmd = "awk '{ gsub(/^#cmakedefine/, \"//cmakedefine\"); print; }' $(<) > $(@)"
+ )
+ native.genrule(
+ name = "gflags_declare_h",
+ srcs = ["src/gflags_declare.h.in"],
+ outs = ["gflags/gflags_declare.h"],
+ cmd = ("awk '{ " +
+ "gsub(/@GFLAGS_NAMESPACE@/, \"" + namespace[0] + "\"); " +
+ "gsub(/@(HAVE_STDINT_H|HAVE_SYS_TYPES_H|HAVE_INTTYPES_H|GFLAGS_INTTYPES_FORMAT_C99)@/, \"1\"); " +
+ "gsub(/@([A-Z0-9_]+)@/, \"0\"); " +
+ "print; }' $(<) > $(@)")
+ )
+ gflags_ns_h_files = []
+ for ns in namespace[1:]:
+ gflags_ns_h_file = "gflags_{}.h".format(ns)
+ native.genrule(
+ name = gflags_ns_h_file.replace('.', '_'),
+ srcs = ["src/gflags_ns.h.in"],
+ outs = ["gflags/" + gflags_ns_h_file],
+ cmd = ("awk '{ " +
+ "gsub(/@ns@/, \"" + ns + "\"); " +
+ "gsub(/@NS@/, \"" + ns.upper() + "\"); " +
+ "print; }' $(<) > $(@)")
+ )
+ gflags_ns_h_files.append(gflags_ns_h_file)
+ native.genrule(
+ name = "gflags_h",
+ srcs = ["src/gflags.h.in"],
+ outs = ["gflags/gflags.h"],
+ cmd = ("awk '{ " +
+ "gsub(/@GFLAGS_ATTRIBUTE_UNUSED@/, \"\"); " +
+ "gsub(/@INCLUDE_GFLAGS_NS_H@/, \"" + '\n'.join(["#include \\\"gflags/{}\\\"".format(hdr) for hdr in gflags_ns_h_files]) + "\"); " +
+ "print; }' $(<) > $(@)")
+ )
+ native.genrule(
+ name = "gflags_completions_h",
+ srcs = ["src/gflags_completions.h.in"],
+ outs = ["gflags/gflags_completions.h"],
+ cmd = "awk '{ gsub(/@GFLAGS_NAMESPACE@/, \"" + namespace[0] + "\"); print; }' $(<) > $(@)"
+ )
+ hdrs = [":gflags_h", ":gflags_declare_h", ":gflags_completions_h"]
+ hdrs.extend([':' + hdr.replace('.', '_') for hdr in gflags_ns_h_files])
+ srcs = [
+ ":config_h",
+ "src/gflags.cc",
+ "src/gflags_completions.cc",
+ "src/gflags_reporting.cc",
+ "src/mutex.h",
+ "src/util.h"
+ ]
+ return [hdrs, srcs]
+
+# ------------------------------------------------------------------------------
+# Add native rule to build gflags library
+def gflags_library(hdrs=[], srcs=[], threads=1):
+ name = "gflags"
+ copts = [
+ "-DHAVE_STDINT_H",
+ "-DHAVE_SYS_TYPES_H",
+ "-DHAVE_INTTYPES_H",
+ "-DHAVE_SYS_STAT_H",
+ "-DHAVE_UNISTD_H",
+ "-DHAVE_FNMATCH_H",
+ "-DHAVE_STRTOLL",
+ "-DHAVE_STRTOQ",
+ "-DHAVE_PTHREAD",
+ "-DHAVE_RWLOCK",
+ "-DGFLAGS_INTTYPES_FORMAT_C99",
+ "-DGFLAGS_IS_A_DLL=0",
+ ]
+ linkopts = []
+ if threads:
+ linkopts.append("-lpthread")
+ else:
+ name += "_nothreads"
+ copts.append("-DNO_THREADS")
+ native.cc_library(
+ name = name,
+ hdrs = hdrs,
+ srcs = srcs,
+ includes = ["$(GENDIR)"],
+ copts = copts,
+ linkopts = linkopts,
+ visibility = ["//visibility:public"]
+ )
diff --git a/src/gflags.cc b/src/gflags.cc
index 42dcd04..bc62227 100644
--- a/src/gflags.cc
+++ b/src/gflags.cc
@@ -88,7 +88,7 @@
// are, similarly, mostly hooks into the functionality described above.
#include "config.h"
-#include "gflags.h"
+#include "gflags/gflags.h"
#include <assert.h>
#include <ctype.h>
diff --git a/src/gflags.h.in b/src/gflags.h.in
index 3732636..43b3f7a 100644
--- a/src/gflags.h.in
+++ b/src/gflags.h.in
@@ -81,7 +81,7 @@
#include <string>
#include <vector>
-#include "gflags_declare.h" // IWYU pragma: export
+#include "gflags/gflags_declare.h" // IWYU pragma: export
// We always want to export variables defined in user code
diff --git a/src/gflags_completions.cc b/src/gflags_completions.cc
index 8fefa1b..f772486 100644
--- a/src/gflags_completions.cc
+++ b/src/gflags_completions.cc
@@ -46,11 +46,6 @@
// 5a) Force bash to place most-relevent groups at the top of the list
// 5b) Trim most flag's descriptions to fit on a single terminal line
-
-#include "gflags_completions.h"
-
-#include "config.h"
-
#include <stdio.h>
#include <stdlib.h>
#include <string.h> // for strlen
@@ -60,7 +55,9 @@
#include <utility>
#include <vector>
-#include "gflags.h"
+#include "config.h"
+#include "gflags/gflags.h"
+#include "gflags/gflags_completions.h"
#include "util.h"
using std::set;
diff --git a/src/gflags_reporting.cc b/src/gflags_reporting.cc
index fb17059..7cc6691 100644
--- a/src/gflags_reporting.cc
+++ b/src/gflags_reporting.cc
@@ -56,8 +56,8 @@
#include <vector>
#include "config.h"
-#include "gflags.h"
-#include "gflags_completions.h"
+#include "gflags/gflags.h"
+#include "gflags/gflags_completions.h"
#include "util.h"
diff --git a/src/mutex.h b/src/mutex.h
index ff96f2b..1648c2f 100644
--- a/src/mutex.h
+++ b/src/mutex.h
@@ -106,7 +106,7 @@
#ifndef GFLAGS_MUTEX_H_
#define GFLAGS_MUTEX_H_
-#include "gflags_declare.h" // to figure out pthreads support
+#include "gflags/gflags_declare.h" // to figure out pthreads support
#if defined(NO_THREADS)
typedef int MutexType; // to keep a lock-count
