chore: post release 0.2.0 (#536)

- bump version to 0.3.0-SNAPSHOT
- refine announcement email

Author: wgtmac

CMakeLists.txt

@@ -24,10 +24,12 @@ endif()
 list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules")
 
 project(Iceberg
-        VERSION 0.2.0
+        VERSION 0.3.0
         DESCRIPTION "Iceberg C++ Project"
         LANGUAGES CXX)
 
+set(ICEBERG_VERSION_SUFFIX "-SNAPSHOT")
+set(ICEBERG_VERSION_STRING "${PROJECT_VERSION}${ICEBERG_VERSION_SUFFIX}")
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/src/iceberg/version.h.in"
                "${CMAKE_BINARY_DIR}/src/iceberg/version.h")
 

dev/release/release.sh

@@ -101,7 +101,9 @@ echo ""
 echo "---------------------------------------------------------"
 cat <<MAIL
 To: dev@iceberg.apache.org
-Cc: announce@apache.org
+CC: announce@apache.org
+Subject: [ANNOUNCE] Apache Iceberg C++ ${version} released
+
 Hello everyone,
 
 I'm pleased to announce the release of Apache Iceberg C++ ${version}!
@@ -111,20 +113,13 @@ Iceberg delivers high query performance for tables with tens of
 petabytes of data, along with atomic commits, concurrent writes, and
 SQL-compatible table evolution.
 
-This release contains <COMMIT_COUNT> commits from <CONTRIBUTOR_COUNT> unique contributors.
-Among the changes in this release are the following highlights:
-
-- <FEATURE_1>
-- <FEATURE_2>
-- ...
-- <FEATURE_N>
-
-This release is hosted at: https://dist.apache.org/repos/dist/release/iceberg/apache-iceberg-cpp-${version}
+This release can be downloaded from [1].
 
-For release details and downloads, please visit: https://github.com/apache/iceberg-cpp/releases/tag/apache-iceberg-cpp-${version}
+Release notes are available at [2].
 
-Thanks to everyone for all your contributions!
+Thanks to everyone for contributing!
 
-<AUTHOR>
+[1] https://dist.apache.org/repos/dist/release/iceberg/apache-iceberg-cpp-${version}
+[2] https://github.com/apache/iceberg-cpp/releases/tag/v${version}
 MAIL
 echo "---------------------------------------------------------"

src/iceberg/version.h.in

@@ -23,6 +23,6 @@
 #define ICEBERG_VERSION_MINOR @PROJECT_VERSION_MINOR@
 #define ICEBERG_VERSION_PATCH @PROJECT_VERSION_PATCH@
 
-#define ICEBERG_VERSION_STRING "@PROJECT_VERSION@"
+#define ICEBERG_VERSION_STRING "@ICEBERG_VERSION_STRING@"
 
 #define ICEBERG_PROJECT_NAME "@PROJECT_NAME@"