Add changelog at api and sdk level, abi version for sdk (#451)

Author: lalitb

CHANGELOG.md

@@ -13,8 +13,10 @@ Increment the:
 
 
 ## [Unreleased]
+
+## [0.0.1] 2020-12-16
 ### Added
-    * Trace API and SDK
+    * Trace API and SDK experimental
     * OTLP Exporter
 ### Changed
 ### Removed

api/CHANGELOG.md

@@ -0,0 +1,21 @@
+# Release History: opentelemetry-api
+
+All notable changes to the api project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Guideline to update the version:
+Increment the:
+- MAJOR version when you make incompatible API/ABI changes,
+- MINOR version when you add functionality in a backwards compatible manner, and
+- PATCH version when you make backwards compatible bug fixes.
+
+
+## [Unreleased]
+
+## [0.0.1] 2020-12-16
+### Added
+    * Trace API experimental
+### Changed
+### Removed

buildscripts/pre_release.sh

@@ -45,7 +45,7 @@ if [ ! -f $changelog_file ]; then
     exit 1
 fi
 
-if [ ! grep -q "## [Unreleased]" $changelog_file ]; then
+if [ ! grep -q "^\#\# \[Unreleased\]$" $changelog_file ]; then
     echo "Error: $changelog_file doesn't contain Unreleased information. Please update the file with changes and run this script again."
     exit 1
 fi
@@ -59,12 +59,12 @@ fi
 # update CHANGELOG.md
 date=$(date '+%Y-%m-%d')
 sed  -i "/\#\# \[Unreleased\]/a\\ \n\#\# \[${tag}\] ${date}"  $changelog_file
-if [$? -ne 0]; then
+if [ $? -ne 0 ]; then
     echo "Error: Cannot update CHANGELOG.md file. Update it manually, create the ${tag} and push changes to upstream"
     exit 1
 fi
 
-git add .
+git add CHANGELOG.md
 git commit -m "Prepare for releasing ${tag}"
 
 echo "Now validate the chages using git diff master, create the ${tag} and push changes to upstream"

sdk/CHANGELOG.md

@@ -0,0 +1,22 @@
+# Release History: opentelemetry-sdk
+
+All notable changes to the sdk project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Guideline to update the version:
+Increment the:
+- MAJOR version when you make incompatible API/ABI changes,
+- MINOR version when you add functionality in a backwards compatible manner, and
+- PATCH version when you make backwards compatible bug fixes.
+
+
+## [Unreleased]
+
+## [0.0.1] 2020-12-16
+### Added
+    * Trace SDK experimental
+    * OTLP Exporter
+### Changed
+### Removed

sdk/include/opentelemetry/sdk/version/version.h

@@ -1,5 +1,22 @@
 #pragma once
 
+#include "opentelemetry/detail/preprocessor.h"
+
+#define OPENTELEMETRY_SDK_ABI_VERSION_NO 0
+#define OPENTELEMETRY_SDK_VERSION "0.0.1"
+#define OPENTELEMETRY_SDK_ABI_VERSION OPENTELEMETRY_STRINGIFY(OPENTELEMETRY_SDK_ABI_VERSION_NO)
+
+// clang-format off
+#define OPENTELEMETRY_SDK_BEGIN_NAMESPACE \
+  namespace opentelemetry { namespace sdk { inline namespace OPENTELEMETRY_CONCAT(v, OPENTELEMETRY_SDK_ABI_VERSION_NO) {
+
+#define OPENTELEMETRY_SDK_END_NAMESPACE \
+  }}}
+
+#define OPENTELEMETRY_SDK_NAMESPACE opentelemetry :: sdk :: OPENTELEMETRY_CONCAT(v, OPENTELEMETRY_SDK_ABI_VERSION_NO)
+
+// clang-format on
+
 #include "opentelemetry/version.h"
 
 OPENTELEMETRY_BEGIN_NAMESPACE