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CMake: Fix some special cases regarding generation of docs 

Ignore error if docs are not generated using a git working tree, for
  instance from a downloaded tarball or zip file. This is only a
  temporary solution for issue #499 (see "FIXME" comment).

Execute doxygen only if it is available. i.e. found by CMake.
This commit is contained in:
Albrecht Schlosser 2022-10-03 10:49:43 +02:00
parent 30efed7fd4
commit 5646522985
1 changed files with 32 additions and 12 deletions
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44
documentation/CMakeLists.txt
View File

@ -16,6 +16,9 @@
set (DOCS)
set (GENERATE_DOCS FALSE)
set (GIT_REVISION "")
set (YEAR "")
set (CURRENT_DATE "")
if (OPTION_BUILD_HTML_DOCUMENTATION OR OPTION_BUILD_PDF_DOCUMENTATION)
set (GENERATE_DOCS TRUE)
@ -44,24 +47,33 @@ if (GENERATE_DOCS)
OUTPUT_VARIABLE CURRENT_DATE
)
# find git revision
# FIXME: This must also work with tarballs where git is not available.
# For now we just ignore errors and set GIT_REVISION = "unkown".
# In the future tarball/zip generation should create a file
# that contains the git revision.
execute_process (COMMAND
git --git-dir=${CMAKE_SOURCE_DIR}/.git rev-parse --short=10 HEAD
OUTPUT_VARIABLE GIT_REVISION
ERROR_QUIET
)
# strip trailing newline from git revision
string (REPLACE "\n" "" GIT_REVISION "${GIT_REVISION}")
# set to "'unkown'" if git is not available
if (GIT_REVISION STREQUAL "")
set (GIT_REVISION "'unkown'")
endif()
# strip trailing newline
string (REPLACE "\n" "" GIT_REVISION ${GIT_REVISION})
# find doxygen version
execute_process (COMMAND doxygen --version
OUTPUT_VARIABLE DOXYGEN_VERSION_SHORT
)
# strip trailing git revision if doxygen was built from source
string (REGEX REPLACE " .*$" "" DOXYGEN_VERSION_SHORT ${DOXYGEN_VERSION_SHORT})
## fl_debug_var (GIT_REVISION)
## fl_debug_var (DOXYGEN_EXECUTABLE)
## fl_debug_var (DOXYGEN_VERSION_SHORT)
if (DOXYGEN_FOUND)
# strip trailing git revision if doxygen was built from source
string (REGEX REPLACE " .*$" "" DOXYGEN_VERSION_SHORT ${DOXYGEN_VERSION})
# strip trailing newline
string (REPLACE "\n" "" DOXYGEN_VERSION_SHORT "${DOXYGEN_VERSION_SHORT}")
endif (DOXYGEN_FOUND)
# configure copyright.dox (includes current year)
configure_file (
@ -77,6 +89,14 @@ if (GENERATE_DOCS)
@ONLY
)
if (0) # debug
fl_debug_var (GIT_REVISION)
fl_debug_var (DOXYGEN_FOUND)
fl_debug_var (DOXYGEN_EXECUTABLE)
fl_debug_var (DOXYGEN_VERSION)
fl_debug_var (DOXYGEN_VERSION_SHORT)
endif ()
endif (GENERATE_DOCS)
#--------------------------