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7977ae3910
Script is written in python3, all distros should contain python3 but python does not always correspond to python3
69 lines
1.8 KiB
Bash
69 lines
1.8 KiB
Bash
#!/bin/bash
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# which version to fetch
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MAJOR="3.7"
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MINOR="2"
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PLATFORM="Linux-x86_64"
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# assemble url for desired version
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URL="https://cmake.org/files/v${MAJOR}/cmake-${MAJOR}.${MINOR}-${PLATFORM}.tar.gz"
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ARCHIVE="$(basename ${URL})"
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DIR="$(basename ${ARCHIVE} .tar.gz)"
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relpath() {
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# workaround because Ubuntu seems to use an ancient realpath version
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# https://stackoverflow.com/questions/2564634/convert-absolute-path-into-relative-path-given-a-current-directory-using-bash#comment12808306_7305217
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python3 -c "import os.path; print(os.path.relpath('${2:-$PWD}','$1'))";
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}
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HERMIT_TOP="$(git rev-parse --show-toplevel)"
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HERMIT_CMAKE="${HERMIT_TOP}/cmake"
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CMAKE_DIR="${HERMIT_CMAKE}/${DIR}"
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CMAKE_DIR_REL="$(relpath ${HERMIT_TOP} ${CMAKE_DIR})"
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# make sure we're sourced, not executed
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if [ "$0" = "$BASH_SOURCE" ]
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then
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echo "You have to source this script:"
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echo "\$ . $0"
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exit
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fi
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# quit if already in path
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echo "$PATH" | grep "${CMAKE_DIR_REL}" &>/dev/null && return
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# check if already installed
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if which cmake &> /dev/null ; then
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if cmake --version | grep "cmake version ${MAJOR}.${MINOR}" &> /dev/null; then
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echo "You already have CMake ${MAJOR}.${MINOR}"
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return
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fi
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fi
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if [ ! -d "${CMAKE_DIR}" ]
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then
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echo "-- Downloading CMake"
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wget "${URL}" -O "${ARCHIVE}" ||
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(echo "Cannot download CMake"; return)
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echo "-- Unpacking CMake"
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tar -C "${HERMIT_CMAKE}" -xf "${ARCHIVE}" ||
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(echo "Cannot unpack CMake archive"; return)
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# delete temporary archive again
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rm -f "${ARCHIVE}"
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# add cmake dir to gitignore
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GITIGNORE="${HERMIT_TOP}/.gitignore"
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if ! grep "${CMAKE_DIR_REL}" "${GITIGNORE}" &>/dev/null
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then
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echo "${CMAKE_DIR_REL}/*" >> "${GITIGNORE}"
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fi
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echo "-- Local CMake v${MAJOR}.${MINOR} installed to ${CMAKE_DIR_REL}"
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echo "-- Next time you source this script, no download will be necessary"
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fi
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export PATH="${CMAKE_DIR}/bin:${PATH}"
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