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update and document setup_clang_ubuntu

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Connor Olding 2021-08-01 08:21:46 -07:00
parent 208dc56791
commit 2c1220e6d1
1 changed files with 24 additions and 4 deletions
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@ -3,12 +3,32 @@
# NO_BASH
# NO_DASH
# I'll just leave this here...
__setup_clang_ubuntu() { ### @-
setup_clang_ubuntu() { ### @-
### print (but don't execute) the commands necessary to install
### a fairly recent version of clang on ubuntu-based distros.
###
### ```sh
### $ setup_clang_ubuntu bionic
### wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
### echo -n "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main
### # deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic main
### # 12
### deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main
### # deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main
### " > /etc/apt/sources.list.d/llvm-toolchain-bionic.list
### apt-get update
### apt-get install clang-12
### apt-get install lld-12
### update-alternatives --install /usr/bin/clang clang /usr/bin/clang-12 1200
### update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-12 1200
### update-alternatives --install /usr/bin/llvm-symbolizer llvm-symbolizer /usr/bin/llvm-symbolizer-12 1200
### ```
local site="http://apt.llvm.org"
local name="$(lsb_release -c | cut -f2)"
local version=10 # NOTE: no longer decimal-based
local name="$1"
local version=12 # NOTE: no longer decimal-based
local priority=$(( version * 100 ))
[ -n "$name" ] || name="$(lsb_release -c | cut -f2)"
# TODO: use https? this is sketchy
echo wget -O - "$site/llvm-snapshot.gpg.key" \| apt-key add -
echo echo -n \""\