openfoam/wmake/scripts/have_cmake
Mark Olesen aafe674f5f ENH: improve cmake/ParaView config handling
- improve handling of changes in ParaView/VTK or cmake parameters (#1693)

  * adjust internals to support recording of an unlimited number of
    configuration parameters and use file `cmp` instead of trying
    to check strings ourselves.

ENH: new wmake/scripts/wmake.cmake-args handler

- additional handling of -prefix=... as CMAKE_INSTALL_PREFIX export.

- in some contexts, can use instead of AllwmakeParseArguments
2020-05-05 18:06:09 +02:00

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#----------------------------------*-sh-*--------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration |
# \\ / A nd | www.openfoam.com
# \\/ M anipulation |
#------------------------------------------------------------------------------
# Copyright (C) 2020 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
# have_cmake
#
# Description
# Locate CMAKE executable
#
# Files
# Uses etc/config.sh/cmake (if it exists) for the
# CMAKE_ARCH_PATH that may specify a possible cmake/bin directory.
#
# Functions provided
# have_cmake, no_cmake, echo_cmake
#
# Variables set on success
# HAVE_CMAKE
# CMAKE_EXE
#
# When properly resolved, CMAKE_EXE will be an absolute path to the
# cmake executable. On failure it will point to 'false'
#
#------------------------------------------------------------------------------
# Reset variables
no_cmake()
{
unset HAVE_CMAKE CMAKE_EXE
}
# Report
echo_cmake()
{
echo cmake="${CMAKE_EXE:-false}"
echo version="$("${CMAKE_EXE:-false}" --version | sed -ne '1s/^.*version *//p')"
}
#
# Try to locate cmake according to values specified in <etc/config.sh/cmake>
# or just use what is found on the path.
#
# On success: return the resolved value as output.
# On failure: set executable as "false" and return with 1
#
have_cmake()
{
# Treat previous queries as "sticky"
if [ -n "$CMAKE_EXE" ]
then
test "$CMAKE_EXE" != "false"
return $?
fi
local config="config.sh/cmake"
unset CMAKE_ARCH_PATH
local settings candidate foundExe
if settings="$("$WM_PROJECT_DIR"/bin/foamEtcFile "$config" 2>/dev/null)"
then
. "$settings"
if [ -d "$CMAKE_ARCH_PATH" ]
then
candidate="$CMAKE_ARCH_PATH"/bin/cmake
if [ -f "$candidate" ] && [ -x "$candidate" ]
then
foundExe="$candidate"
fi
fi
fi
if [ -z "$foundExe" ]
then
# Default: resolve from PATH
if candidate="$(command -v cmake 2>/dev/null)"
then
foundExe="$candidate"
fi
fi
if [ -n "$foundExe" ]
then
# OK
export HAVE_CMAKE=true
export CMAKE_EXE="$foundExe"
else
# Failure
export CMAKE_EXE="false" # Avoid repeated calls?
return 2
fi
}
# Reset variables
no_cmake
# Test/query
case "$1" in
-test)
have_cmake
echo_cmake
;;
-query)
## query_cmake
;;
esac
#------------------------------------------------------------------------------