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authorBrad King <brad.king@kitware.com>2019-10-11 17:43:46 (GMT)
committerBrad King <brad.king@kitware.com>2019-10-11 17:49:59 (GMT)
commitb254b0651ef093476322165f919e0a930534473b (patch)
tree402eaa33f3853a2b3a727001ab990398bd83f28b
parent9150c818b7d2afb868575fcb2e0c9ba62b9d7f85 (diff)
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CMakeVersion: Prefer Git information provided by 'git archive' exports
Update the approach from commit fe2c558ba6 (CMakeVersion: Preserve Git information during 'git archive', 2019-07-25, v3.16.0-rc1~337^2) to prefer `export-subst` information. This will allow exported source trees to be imported into unrelated Git repositories while still using the original upstream CMake commit information.
-rw-r--r--Source/CMakeVersion.cmake22
1 files changed, 11 insertions, 11 deletions
diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
index 0f2a2d2..092f64d 100644
--- a/Source/CMakeVersion.cmake
+++ b/Source/CMakeVersion.cmake
@@ -19,7 +19,12 @@ else()
set(CMake_VERSION_IS_RELEASE 0)
endif()
-if(EXISTS ${CMake_SOURCE_DIR}/.git)
+# If this source was exported by 'git archive', use its commit info.
+set(git_info [==[$Format:%h %s$]==])
+
+# Otherwise, try to identify the current development source version.
+if(NOT git_info MATCHES "^([0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]?[0-9a-f]?)[0-9a-f]* "
+ AND EXISTS ${CMake_SOURCE_DIR}/.git)
find_package(Git QUIET)
if(GIT_FOUND)
macro(_git)
@@ -32,16 +37,11 @@ if(EXISTS ${CMake_SOURCE_DIR}/.git)
)
endmacro()
endif()
-endif()
-
-# Try to identify the current development source version.
-if(COMMAND _git)
- # Get the commit checked out in this work tree.
- _git(log -n 1 HEAD "--pretty=format:%h %s" --)
- set(git_info "${_git_out}")
-else()
- # Get the commit exported by 'git archive'.
- set(git_info [==[$Format:%h %s$]==])
+ if(COMMAND _git)
+ # Get the commit checked out in this work tree.
+ _git(log -n 1 HEAD "--pretty=format:%h %s" --)
+ set(git_info "${_git_out}")
+ endif()
endif()
# Extract commit information if available.