dotfiles/zsh/path.zsh
2021-02-07 19:49:38 +02:00

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#!/usr/bin/env zsh
# tie these env variables to zsh arrays
typeset -T PKG_CONFIG_PATH pkg_config_path ':'
export PKG_CONFIG_PATH PATH MANPATH
path_prepend() {
if (( $# < 1 )); then
print >&2 "usage: $0 <var_name> <value...>"
return 1
fi
local var_name="$1"; shift
local value; for value in "$@"; do
if eval "(( \${${var_name}[(ie)\$value]-1} > \${#${var_name}} ))"; then
eval "${var_name}=(\"\$value\" \"\${${var_name}[@]}\")"
fi
done
}
# glob modifiers used in this script:
#
# N - enables the null_glob option for a single glob pattern, in other words
# ignores an error when the pattern didn't match anything
#
# / - matches only directories
if (( _is_macos )); then
# GNU counterparts of command line utilities
path_prepend path /usr/local/opt/*/libexec/gnubin(N/)
path_prepend manpath /usr/local/opt/*/libexec/gnuman(N/)
# add some keg-only Homebrew formulas
for formula in curl file-formula openssl ruby; do
formula_path="/usr/local/opt/$formula"
if [[ ! -d "$formula_path" ]]; then
continue
fi
if [[ -d "$formula_path/bin" ]]; then
path_prepend path "$formula_path/bin"
fi
if [[ -d "$formula_path/lib/pkgconfig" ]]; then
path_prepend pkg_config_path "$formula_path/lib/pkgconfig"
fi
done; unset formula
# Use Python 3 executables by default, i.e. when a version suffix (`python3`)
# is not specified.
path_prepend path /usr/local/opt/python@3/libexec/bin
fi
if (( _is_macos )); then
# Python packages (for some reason they don't go into ~/.local/bin, but
# instead into the garbage ~/Library directory)
path_prepend path ~/Library/Python/*/bin(N/)
fi
# Ruby gems
path_prepend path ~/.gem/ruby/*/bin(N/)
# Yarn global packages
path_prepend path ~/.yarn/bin
# Go
export GOPATH=~/go
path_prepend path "$GOPATH/bin"
# Rust
path_prepend path ~/.cargo/bin
# check if the Rust toolchain was installed via rustup
if rustup_home="$(rustup show home 2> /dev/null)" &&
rust_sysroot="$(rustc --print sysroot 2> /dev/null)" &&
[[ -d "$rustup_home" && -d "$rust_sysroot" && "$rust_sysroot" == "$rustup_home"/* ]]
then
# add paths of the selected Rust toolchain
path_prepend fpath "$rust_sysroot/share/zsh/site-functions"
path_prepend manpath "$rust_sysroot/share/man"
fi
unset rustup_home rust_sysroot
# add my binaries and completions
path_prepend path "${ZSH_DOTFILES:h}/scripts"
path_prepend fpath "$ZSH_DOTFILES/completions"
# add user binaries
path_prepend path ~/.local/bin
unfunction path_prepend