zvm-direnv/direnvrc

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# vi: ft=sh
# shellcheck shell=bash
ZVM_DIRENV_VERSION=2.0.0
# Usage: zvm_direnv_version <version_at_least>
#
# Checks that the nix-direnv version is at least as old as <version_at_least>.
zvm_direnv_version() {
_require_version zvm-direnv $ZVM_DIRENV_VERSION "$1"
}
_require_version() {
local cmd=$1 version=$2 required=$3
if ! printf "%s\n" "$required" "$version" | LC_ALL=C sort -c -V 2>/dev/null; then
log_error \
"zvm_direnv: minimum required $(basename "$cmd") version is $required (installed: $version)"
return 1
fi
}
use_zig() {
# ZVM_SET_CU will turn off the upgrade check
if [[ -z $1 ]]; then
log_error "Must specify a zig version!"
return 1
fi
if [[ "$1" == "master" ]]; then
log_error "Please don't use master"
return 1
fi
if ! command -v zvm > /dev/null 2>&1; then
log_error "zvm not installed - please install it from https://www.zvm.app/"
return 1
fi
local state_dir
if ! ZVM_SET_CU=1 zvm env >/dev/null 2>&1; then
# zvm env is not available, so we assume all the things are in ZVM_INSTALL
state_dir="${ZVM_INSTALL}/.."
else
state_dir="$(ZVM_SET_CU=1 zvm env |grep -F '"state":' |cut -d: -f2 |cut -d\" -f2)"
fi
local version="$1"
# This is a bad idea, because it will make a global change
# zvm use $1
#
# Check for existence of the version installed in the state directory
if [ ! -d "${state_dir}/$version" ]; then
log_status "zig/zls version $version not installed - downloading with zvm"
local current
# zvm 0.7.9 does not indicate which version is in use, so we have to find
# the version that was hard linked into the bin directory
# current="$(find "${ZVM_INSTALL}/.." -samefile "${ZVM_INSTALL}/../bin/zig" | \
# rev | \
# cut -d/ -f2 | \
# rev)"
#
# We will assume a version of zvm that does allow this
current="$(ZVM_SET_CU=1 zvm ls --color off |grep -F ' [x]' |cut -d' ' -f1)"
zvm install --zls "$1" # I think this is safe for all except master
# zvm install will automatically use the installed version, which is normally
# cool, but in this case, we don't want to do that, so we will revert
zvm use "$current"
fi
# Don't muck with the path - allow this to be done at the system level
PATH_add "${state_dir}/$1"
}