fix error and version info in shallow git clones

Fix `cmake/GitTagVersion.cmake` to not throw errors when in a shallow
git clone, or any git clone that has no tags.

And when either git or git tag version info is not available, set the
version variables to the defaults, which are:

```
VERSION         = '2.0.0'
REVISION        = 'unknown'
VERSION_RELEASE = 0
```
This commit is contained in:
Rafael Kitover 2017-10-07 18:17:52 -07:00
parent f5379ab806
commit 52439cee0e
2 changed files with 13 additions and 0 deletions

View File

@ -114,7 +114,10 @@ if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
get_git_head_revision(REFSPEC COMMITHASH) get_git_head_revision(REFSPEC COMMITHASH)
else() else()
message(WARNING "Git not found, cannot set version info") message(WARNING "Git not found, cannot set version info")
endif()
# no git or no tags
if(NOT VERSION)
set(VERSION 2.0.0) set(VERSION 2.0.0)
set(REVISION "unknown") set(REVISION "unknown")
set(VERSION_RELEASE 0) set(VERSION_RELEASE 0)

View File

@ -8,6 +8,11 @@ function(git_version version revision version_release)
# get latest version from tag history # get latest version from tag history
execute_process(COMMAND ${GIT_EXECUTABLE} tag --sort=-creatordate OUTPUT_VARIABLE sorted_tags OUTPUT_STRIP_TRAILING_WHITESPACE) execute_process(COMMAND ${GIT_EXECUTABLE} tag --sort=-creatordate OUTPUT_VARIABLE sorted_tags OUTPUT_STRIP_TRAILING_WHITESPACE)
# if no tags (e.g. shallow clone) do nothing
if(NOT sorted_tags)
return()
endif()
# convert to list (see: https://public.kitware.com/pipermail/cmake/2007-May/014222.html) # convert to list (see: https://public.kitware.com/pipermail/cmake/2007-May/014222.html)
string(REGEX REPLACE ";" "\\\\;" sorted_tags "${sorted_tags}") string(REGEX REPLACE ";" "\\\\;" sorted_tags "${sorted_tags}")
string(REGEX REPLACE "\n" ";" sorted_tags "${sorted_tags}") string(REGEX REPLACE "\n" ";" sorted_tags "${sorted_tags}")
@ -29,6 +34,11 @@ function(git_version version revision version_release)
# get the current revision # get the current revision
execute_process(COMMAND ${GIT_EXECUTABLE} tag "--format=%(align:width=20)%(refname:short)%(end)%(if)%(*objectname)%(then)%(*objectname)%(else)%(objectname)%(end)" --sort=-creatordate OUTPUT_VARIABLE sorted_tags_refs OUTPUT_STRIP_TRAILING_WHITESPACE) execute_process(COMMAND ${GIT_EXECUTABLE} tag "--format=%(align:width=20)%(refname:short)%(end)%(if)%(*objectname)%(then)%(*objectname)%(else)%(objectname)%(end)" --sort=-creatordate OUTPUT_VARIABLE sorted_tags_refs OUTPUT_STRIP_TRAILING_WHITESPACE)
# if no tags (e.g. shallow clone) do nothing
if(NOT sorted_tags_refs)
return()
endif()
# convert to list (see: https://public.kitware.com/pipermail/cmake/2007-May/014222.html) # convert to list (see: https://public.kitware.com/pipermail/cmake/2007-May/014222.html)
string(REGEX REPLACE ";" "\\\\;" sorted_tags_refs "${sorted_tags_refs}") string(REGEX REPLACE ";" "\\\\;" sorted_tags_refs "${sorted_tags_refs}")
string(REGEX REPLACE "\n" ";" sorted_tags_refs "${sorted_tags_refs}") string(REGEX REPLACE "\n" ";" sorted_tags_refs "${sorted_tags_refs}")