Resolve "Develop package names" 2

Closes #2076 (closed)

CMake/GetVersionFromGitTag.cmake

+#
+# This cmake module sets the project version and partial version
+# variables by analysing the git tag and commit history. It expects git
+# tags defined with semantic versioning 2.0.0 (http://semver.org/).
+#
+# The module expects the PROJECT_NAME variable to be set, and recognizes
+# the GIT_FOUND, GIT_EXECUTABLE and VERSION_UPDATE_FROM_GIT variables.
+# If Git is found and VERSION_UPDATE_FROM_GIT is set to boolean TRUE,
+# the project version will be updated using information fetched from the
+# most recent git tag and commit. Otherwise, the module will try to read
+# a VERSION file containing the full and partial versions. The module
+# will update this file each time the project version is updated.
+#
+# Once done, this module will define the following variables:
+#
+# ${PROJECT_NAME}_VERSION_STRING - Version string without metadata
+# such as "v2.0.0" or "v1.2.41-beta.1". This should correspond to the
+# most recent git tag.
+# ${PROJECT_NAME}_VERSION_STRING_FULL - Version string with metadata
+# such as "v2.0.0+3.a23fbc" or "v1.3.1-alpha.2+4.9c4fd1"
+# ${PROJECT_NAME}_VERSION - Same as ${PROJECT_NAME}_VERSION_STRING,
+# without the preceding 'v', e.g. "2.0.0" or "1.2.41-beta.1"
+# ${PROJECT_NAME}_VERSION_MAJOR - Major version integer (e.g. 2 in v2.3.1-RC.2+21.ef12c8)
+# ${PROJECT_NAME}_VERSION_MINOR - Minor version integer (e.g. 3 in v2.3.1-RC.2+21.ef12c8)
+# ${PROJECT_NAME}_VERSION_PATCH - Patch version integer (e.g. 1 in v2.3.1-RC.2+21.ef12c8)
+# ${PROJECT_NAME}_VERSION_TWEAK - Tweak version string (e.g. "RC.2" in v2.3.1-RC.2+21.ef12c8)
+# ${PROJECT_NAME}_VERSION_AHEAD - How many commits ahead of last tag (e.g. 21 in v2.3.1-RC.2+21.ef12c8)
+# ${PROJECT_NAME}_VERSION_GIT_SHA - The git sha1 of the most recent commit (e.g. the "ef12c8" in v2.3.1-RC.2+21.ef12c8)
+#
+# This module is public domain, use it as it fits you best.
+#
+# Author: Nuno Fachada
+
+
+function(get_package_name root_repo_dir project_version_string)
+  
+  if(EXISTS "${root_repo_dir}/.git")  
+    find_package(Git)
+    if(NOT GIT_FOUND)
+      message(ERROR "git not found. Make sure git can be found in your PATH")
+      return()
+    endif()
+    
+    message(STATUS "PROJECT_NAME: ${PROJECT_NAME}")
+    message(STATUS "VERSION MINOR: ${${PROJECT_NAME}_VERSION_MAJOR}")
+    message(STATUS "VERSION MAJOR: ${${PROJECT_NAME}_VERSION_MINOR}")
+    message(STATUS "VERSION PATCH: ${${PROJECT_NAME}_VERSION_PATCH}")
+
+
+    if(DEFINED ENV{CI_COMMIT_REF_NAME})
+      set(branch_name "$ENV{CI_COMMIT_REF_NAME}")
+    else()
+      execute_process(COMMAND ${GIT_EXECUTABLE} symbolic-ref -q HEAD
+        WORKING_DIRECTORY ${root_repo_dir}
+        OUTPUT_VARIABLE git_symbolic_ref_output
+        OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_QUIET)
+
+      set(branch_name)
+      if(git_symbolic_ref_output)
+        get_filename_component(branch_name ${git_symbolic_ref_output} NAME)
+      endif()
+    endif()
+
+    message(STATUS "branch_name: ${branch_name}")
+
+    if("${branch_name}" MATCHES "^release-[0-9]+\\.[0-9]+\$")
+
+      set(${project_version_string} "${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}" PARENT_SCOPE)
+
+    else()
+      if(DEFINED ENV{CI_COMMIT_SHORT_SHA})
+        set(${project_version_string} "${branch_name}-$ENV{CI_COMMIT_SHORT_SHA}" PARENT_SCOPE)
+      else()
+        execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
+          WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+          OUTPUT_VARIABLE ${PROJECT_NAME}_COMMIT_SHA_STRING
+          OUTPUT_STRIP_TRAILING_WHITESPACE)
+        set(${project_version_string} "${branch_name}-${${PROJECT_NAME}_COMMIT_SHA_STRING}" PARENT_SCOPE)
+      endif()
+
+    endif()
+
+  else()
+
+    # Standalone source directory, get version from RELEASE_NOTE file
+    file(STRINGS ${root_repo_dir}/RELEASE_NOTES.txt RN_FIRSTLINE LIMIT_COUNT 1)
+    message(STATUS "${RN_FIRSTLINE}")
+    string(REPLACE " " ";" RN_FIRSTLINE_LIST ${RN_FIRSTLINE})
+    list(GET RN_FIRSTLINE_LIST 1 PROJECT_VERSION_STRING)
+    message(STATUS ${PROJECT_VERSION_STRING})
+
+    # Get partial versions into a list
+    string(REGEX MATCHALL "-.*$|[0-9]+" PARTIAL_VERSION_LIST
+      ${PROJECT_VERSION_STRING})
+
+    list(GET PARTIAL_VERSION_LIST 0 _VERSION_MAJOR)
+    list(GET PARTIAL_VERSION_LIST 1 _VERSION_MINOR)
+    list(GET PARTIAL_VERSION_LIST 2 _VERSION_PATCH)
+    
+    message(STATUS "M: ${_VERSION_MAJOR}, m: ${_VERSION_MINOR}, p: ${_VERSION_PATCH}")
+
+	  set(${project_version_string} "${PROJECT_VERSION_STRING}" PARENT_SCOPE)
+    
+  endif()
+
+endfunction()