From 87a2ef100adbcc14c207a20c5d0ce7ce8bd9f198 Mon Sep 17 00:00:00 2001
From: winlin <winlin@vip.126.com>
Date: Wed, 28 Dec 2022 14:20:18 +0800
Subject: [PATCH] Script: Discover version from code.

---
 trunk/auto/depends.sh               |  2 +-
 trunk/auto/setup_variables.sh       | 21 +++++++++++++++++++--
 trunk/configure                     |  2 +-
 trunk/src/core/srs_core.hpp         |  2 +-
 trunk/src/core/srs_core_version.cpp |  8 ++++++++
 trunk/src/core/srs_core_version.hpp | 12 ++++++++++++
 6 files changed, 42 insertions(+), 5 deletions(-)
 create mode 100644 trunk/src/core/srs_core_version.cpp
 create mode 100644 trunk/src/core/srs_core_version.hpp

diff --git a/trunk/auto/depends.sh b/trunk/auto/depends.sh
index 4cf1b7e0d..093ffec02 100755
--- a/trunk/auto/depends.sh
+++ b/trunk/auto/depends.sh
@@ -320,7 +320,7 @@ echo ""
 # Use srs-cache from base image. See https://github.com/ossrs/dev-docker/blob/ubuntu20-cache/Dockerfile
 # Note that the cache for cygwin is not under /usr/local, but copy to objs instead.
 if [[ -d /usr/local/srs-cache/srs/trunk/objs && $(pwd) != "/usr/local/srs-cache/srs/trunk" ]]; then
-    SOURCE_DIR=$(ls -d /usr/local/srs-cache/srs/trunk/objs/Platform-* 2>/dev/null|head -n 1)
+    SOURCE_DIR=$(ls -d /usr/local/srs-cache/srs/trunk/objs/Platform-SRS${SRS_MAJOR}-* 2>/dev/null|head -n 1)
     if [[ -d $SOURCE_DIR ]]; then
         TARGET_DIR=${SRS_OBJS}/${SRS_PLATFORM} &&
         echo "Build from cache, source=$SOURCE_DIR, target=$TARGET_DIR" &&
diff --git a/trunk/auto/setup_variables.sh b/trunk/auto/setup_variables.sh
index 230dfd490..e85b50ea9 100755
--- a/trunk/auto/setup_variables.sh
+++ b/trunk/auto/setup_variables.sh
@@ -5,12 +5,29 @@ OS_KERNEL_NAME=$(uname -s)
 OS_KERNRL_RELEASE=$(uname -r|awk -F '-' '{print $1}')
 OS_PREFIX="Platform"
 
+# Detect gcc, which is required.
+gcc --version >/dev/null 2>/dev/null || (ret=$?; echo "Please install gcc"; exit $ret)
+
+# Discover SRS version from header file.
+mkdir -p ${SRS_OBJS} &&
+echo '#include <stdio.h>' > ${SRS_OBJS}/test_version.c &&
+echo '#include <srs_core_version.hpp>' >> ${SRS_OBJS}/test_version.c &&
+echo 'int main(int argc, char** argv) {' >> ${SRS_OBJS}/test_version.c &&
+echo '      printf("%d.%d.%d\n", VERSION_MAJOR, VERSION_MINOR, VERSION_REVISION);' >> ${SRS_OBJS}/test_version.c &&
+echo '      return 0;' >> ${SRS_OBJS}/test_version.c &&
+echo '}' >> ${SRS_OBJS}/test_version.c &&
+gcc -g -O0 ${SRS_OBJS}/test_version.c -I${SRS_WORKDIR}/src/core -o ${SRS_OBJS}/test_version 1>/dev/null 2>&1 &&
+SRS_VERSION=$(./${SRS_OBJS}/test_version 2>/dev/null) &&
+SRS_MAJOR=$(echo $SRS_VERSION |awk -F . '{print $1}');
+ret=$?; rm -rf ${SRS_OBJS}/test_version*; if [[ $ret -ne 0 ]]; then echo "Detect SRS version failed"; exit $ret; fi
+echo "Discover SRS version=${SRS_VERSION}, major=${SRS_MAJOR}"
+
 if [[ $OSTYPE == cygwin ]]; then
     OS_KERNRL_RELEASE=$(uname -r|awk -F '(' '{print $1}')
 fi
 
 # Build platform cache.
-SRS_PLATFORM="${SRS_BUILD_TAG}${OS_PREFIX}-${OS_KERNEL_NAME}-${OS_KERNRL_RELEASE}"
+SRS_PLATFORM="${SRS_BUILD_TAG}${OS_PREFIX}-SRS${SRS_MAJOR}-${OS_KERNEL_NAME}-${OS_KERNRL_RELEASE}"
 # Build platform cache with gcc version.
 if [[ $OS_KERNEL_NAME == Darwin ]]; then
   GCC_VERSION="Clang$(gcc --version 2>/dev/null|grep clang|awk '{print $4}')"
@@ -21,7 +38,7 @@ else
   SRS_PLATFORM="${SRS_PLATFORM}-${GCC_VERSION}"
 fi
 # Use isolate cache for different SRS version.
-SRS_PLATFORM="${SRS_PLATFORM}-SRS5-$(uname -m)"
+SRS_PLATFORM="${SRS_PLATFORM}-$(uname -m)"
 
 if [[ $SRS_CROSS_BUILD == YES ]]; then
     SRS_TOOL_CC_NAME=$(basename $SRS_TOOL_CC)
diff --git a/trunk/configure b/trunk/configure
index 96adb40e1..d11851d8d 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -236,7 +236,7 @@ fi
 MODULE_ID="CORE"
 MODULE_DEPENDS=()
 ModuleLibIncs=(${SRS_OBJS})
-MODULE_FILES=("srs_core" "srs_core_version5" "srs_core_autofree" "srs_core_performance"
+MODULE_FILES=("srs_core" "srs_core_version" "srs_core_version5" "srs_core_autofree" "srs_core_performance"
 		"srs_core_time" "srs_core_platform")
 CORE_INCS="src/core"; MODULE_DIR=${CORE_INCS} . $SRS_WORKDIR/auto/modules.sh
 CORE_OBJS="${MODULE_OBJS[@]}"
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index e42696e16..277dddbfa 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -8,7 +8,7 @@
 #define SRS_CORE_HPP
 
 // The version config.
-#include <srs_core_version5.hpp>
+#include <srs_core_version.hpp>
 
 // The macros generated by configure script.
 #include <srs_auto_headers.hpp>
diff --git a/trunk/src/core/srs_core_version.cpp b/trunk/src/core/srs_core_version.cpp
new file mode 100644
index 000000000..ddc0822df
--- /dev/null
+++ b/trunk/src/core/srs_core_version.cpp
@@ -0,0 +1,8 @@
+//
+// Copyright (c) 2013-2022 The SRS Authors
+//
+// SPDX-License-Identifier: MIT or MulanPSL-2.0
+//
+
+#include <srs_core_version.hpp>
+
diff --git a/trunk/src/core/srs_core_version.hpp b/trunk/src/core/srs_core_version.hpp
new file mode 100644
index 000000000..bc6d71ca5
--- /dev/null
+++ b/trunk/src/core/srs_core_version.hpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2013-2022 The SRS Authors
+//
+// SPDX-License-Identifier: MIT or MulanPSL-2.0
+//
+
+#ifndef SRS_CORE_VERSION_HPP
+#define SRS_CORE_VERSION_HPP
+
+#include <srs_core_version5.hpp>
+
+#endif