[PATCH] D30092: CMake: Clean up VersionFromVCS.cmake
Tom Stellard via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Feb 17 06:45:58 PST 2017
tstellar created this revision.
Herald added a subscriber: mgorny.
Fix a few problems in VersionFromVCS.cmake to make it more reliable:
- Stop using git svn info to retrieve the svn revision. I am unable to determine what the svn revision returned by this command means. During my testing this command returned a revision from a month ago which was not the HEAD of any of my local branches.
Also, this revision was never actually added to the version string due to a typo in the script. All it was used for was to reject the revision number returned by git svn find-rev HEAD when the revision numbers didn't match.
- Populate LLVM_REPOSITORY variable using git svn info --url. This lets avoid having to do a search and replace on the output of git svn info
- Populate GIT_COMMIT even when we detect a git repo without any svn information.
https://reviews.llvm.org/D30092
Files:
cmake/modules/VersionFromVCS.cmake
Index: cmake/modules/VersionFromVCS.cmake
===================================================================
--- cmake/modules/VersionFromVCS.cmake
+++ cmake/modules/VersionFromVCS.cmake
@@ -28,57 +28,51 @@
elseif( EXISTS ${SOURCE_DIR}/.git )
set(result "${result}git")
# Try to get a ref-id
- if( EXISTS ${SOURCE_DIR}/.git/svn )
- find_program(git_executable NAMES git git.exe git.cmd)
- if( git_executable )
- set(is_git_svn_rev_exact false)
+ find_program(git_executable NAMES git git.exe git.cmd)
+
+ if( git_executable )
+ if( EXISTS ${SOURCE_DIR}/.git/svn )
+ # Get the repository URL
execute_process(COMMAND
- ${git_executable} svn info
+ ${git_executable} svn info --url
WORKING_DIRECTORY ${SOURCE_DIR}
TIMEOUT 5
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output)
if( git_result EQUAL 0 )
- string(REGEX MATCH "URL: ([^ \n]*)" svn_url ${git_output})
- if(svn_url)
- set(LLVM_REPOSITORY ${CMAKE_MATCH_1} PARENT_SCOPE)
- endif()
-
- string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
- "\\2" git_svn_rev_number "${git_output}")
- set(SVN_REVISION ${git_svn_rev_number} PARENT_SCOPE)
- set(git_svn_rev "-svn-${git_svn_rev}")
-
- # Determine if the HEAD points directly at a subversion revision.
- execute_process(COMMAND ${git_executable} svn find-rev HEAD
- WORKING_DIRECTORY ${SOURCE_DIR}
- TIMEOUT 5
- RESULT_VARIABLE git_result
- OUTPUT_VARIABLE git_output)
- if( git_result EQUAL 0 )
- string(STRIP "${git_output}" git_head_svn_rev_number)
- if( git_head_svn_rev_number EQUAL git_svn_rev_number )
- set(is_git_svn_rev_exact true)
- endif()
- endif()
- else()
- set(git_svn_rev "")
+ string(STRIP "${git_output}" svn_url)
+ set(LLVM_REPOSITORY ${svn_url} PARENT_SCOPE)
endif()
- execute_process(COMMAND
- ${git_executable} rev-parse --short HEAD
+
+ # Get the svn revision number for this git commit if one exists.
+ execute_process(COMMAND ${git_executable} svn find-rev HEAD
WORKING_DIRECTORY ${SOURCE_DIR}
TIMEOUT 5
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output)
-
- if( git_result EQUAL 0 AND NOT is_git_svn_rev_exact )
- string(STRIP "${git_output}" git_ref_id)
- set(GIT_COMMIT ${git_ref_id} PARENT_SCOPE)
- set(result "${result}${git_svn_rev}-${git_ref_id}")
+ if( git_result EQUAL 0 AND git_output)
+ string(STRIP "${git_output}" git_head_svn_rev_number)
+ set(SVN_REVISION ${git_head_svn_rev_number} PARENT_SCOPE)
+ set(git_svn_rev "-svn-${git_head_svn_rev_number}")
else()
- set(result "${result}${git_svn_rev}")
+ set(git_svn_rev "")
endif()
+ endif()
+
+ # Get the git ref id
+ execute_process(COMMAND
+ ${git_executable} rev-parse --short HEAD
+ WORKING_DIRECTORY ${SOURCE_DIR}
+ TIMEOUT 5
+ RESULT_VARIABLE git_result
+ OUTPUT_VARIABLE git_output)
+ if( git_result EQUAL 0 )
+ string(STRIP "${git_output}" git_ref_id)
+ set(GIT_COMMIT ${git_ref_id} PARENT_SCOPE)
+ set(result "${result}${git_svn_rev}-${git_ref_id}")
+ else()
+ set(result "${result}${git_svn_rev}")
endif()
endif()
endif()
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