Initial Commit

CMake/Modules/FindGitSubversion.cmake

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+# - Extract information from a git-svn working copy
+# The module defines the following variables:
+#
+# If the command line client executable is found two macros are defined:
+# GitSubversion_WC_INFO(<dir> <var-prefix>)
+# GitSubversion_WC_INFO extracts information of a subversion working copy at
+# a given location. This macro defines the following variables:
+#  <var-prefix>_WC_URL - url of the repository (at <dir>)
+#  <var-prefix>_WC_ROOT - root url of the repository
+#  <var-prefix>_WC_REVISION - current revision
+#  <var-prefix>_WC_LAST_CHANGED_AUTHOR - author of last commit
+#  <var-prefix>_WC_LAST_CHANGED_DATE - date of last commit
+#  <var-prefix>_WC_LAST_CHANGED_REV - revision of last commit
+#  <var-prefix>_WC_INFO - output of command `svn info <dir>'
+# Example usage:
+#  find_package(Subversion)
+#  if(SUBVERSION_FOUND)
+#    GitSubversion_WC_INFO(${PROJECT_SOURCE_DIR} Project)
+#    message("Current revision is ${Project_WC_REVISION}")
+#  endif()
+
+find_package (Git)
+
+if(GIT_FOUND)
+  # the git-svn commands should be executed with the C locale, otherwise
+  # the message (which are parsed) may be translated, Alex
+  set(_Subversion_SAVED_LC_ALL "$ENV{LC_ALL}")
+  set(ENV{LC_ALL} C)
+
+  # execute_process(COMMAND ${Subversion_SVN_EXECUTABLE} --version
+  #   OUTPUT_VARIABLE Subversion_VERSION_SVN
+  #   OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  # restore the previous LC_ALL
+  set(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
+
+  # string(REGEX REPLACE "^(.*\n)?svn, version ([.0-9]+).*"
+  #   "\\2" Subversion_VERSION_SVN "${Subversion_VERSION_SVN}")
+
+  macro(GitSubversion_WC_INFO dir prefix)
+    # the subversion commands should be executed with the C locale, otherwise
+    # the message (which are parsed) may be translated, Alex
+    set(_Subversion_SAVED_LC_ALL "$ENV{LC_ALL}")
+    set(ENV{LC_ALL} C)
+
+    execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${dir}/.git svn info
+      OUTPUT_VARIABLE ${prefix}_WC_INFO
+      ERROR_VARIABLE Git_git_svn_info_error
+      RESULT_VARIABLE Git_git_svn_info_result
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+    if(NOT ${Git_git_svn_info_result} EQUAL 0)
+      message(SEND_ERROR "Command \"${GIT_EXECUTABLE} --git-dir=${dir}/.git svn info\" failed with output:\n${Git_git_svn_info_error}")
+    else()
+
+      string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
+        "\\2" ${prefix}_WC_URL "${${prefix}_WC_INFO}")
+      string(REGEX REPLACE "^(.*\n)?Repository Root: ([^\n]+).*"
+        "\\2" ${prefix}_WC_ROOT "${${prefix}_WC_INFO}")
+      string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
+        "\\2" ${prefix}_WC_REVISION "${${prefix}_WC_INFO}")
+      string(REGEX REPLACE "^(.*\n)?Last Changed Author: ([^\n]+).*"
+        "\\2" ${prefix}_WC_LAST_CHANGED_AUTHOR "${${prefix}_WC_INFO}")
+      string(REGEX REPLACE "^(.*\n)?Last Changed Rev: ([^\n]+).*"
+        "\\2" ${prefix}_WC_LAST_CHANGED_REV "${${prefix}_WC_INFO}")
+      string(REGEX REPLACE "^(.*\n)?Last Changed Date: ([^\n]+).*"
+        "\\2" ${prefix}_WC_LAST_CHANGED_DATE "${${prefix}_WC_INFO}")
+    endif()
+
+    # restore the previous LC_ALL
+    set(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
+
+  endmacro()
+
+endif()