fix-paths.sh

# Significant care is taken to be sh-compatible; if bash or zsh could be
# required, it could be made simpler or more generic.

# Known source'rs:
# ~/.profile
# ~/.zshrc
# ~/.xprofile
# ~/.xsessionrc
# ~/.bashrc
# ~/.config/plasma-workspace/env/*.sh

has_PATH () {
    local tmp=":$PATH:"
    [ "${tmp}" != "${tmp#*:$1:}" ]
}

prepend_PATH () {
    has_PATH "$1" || PATH="$1:$PATH"
}

append_PATH () {
    has_PATH "$1" || PATH="$PATH:$1"
}

prepend_PATH /usr/local/bin
prepend_PATH ~/.local/bin
prepend_PATH ~/bin
prepend_PATH /usr/lib/ccache
append_PATH /usr/sbin
append_PATH /sbin
append_PATH /usr/local/games
append_PATH /usr/games
export PATH