#!/bin/sh
# .profile - Bourne-like shell (sh, ksh, bash, dash, zsh) init script

# set the default file creation mask to something reasonably safe

umask 022

# set the PATH to directories where binaries are usually located

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/opt/local/bin:/opt/local/sbin
PATH=$PATH:/usr/X11R6/bin:/usr/local/bin:/usr/local/sbin
PATH=$PATH:/usr/local/zfs/bin:$HOME/bin
export PATH

# make ksh read .profile instead of .kshrc

ENV="$HOME/.profile"

# disable history in ksh/zsh

HISTFILE=/dev/null

# disable per-session history in bash and zsh on MacOSX
# see: https://stackoverflow.com/a/54338056
#      https://superuser.com/a/1610999
# also remember to create $HOME/.bash_sessions_disable

SHELL_SESSION_HISTORY=0
SHELL_SESSIONS_DISABLE=1

export ENV HISTFILE SHELL_SESSION_HISTORY SHELL_SESSIONS_DISABLE

case $- in

    # interactive shell startup

    *i*)

        HOST="`uname -n | sed -e 's/\..*$//' | tr 'A-Z' 'a-z'`"

        # default prompt

        PS1="$HOST$ "
        PS2="> "

        # change the prompt if running as root (e.g. via sudo)

        if [ X"$EUID" = X"0" ] ; then
            PS1="$HOST# "
            PS2="#> "
        fi

        # include our home directory and our documents folder
        # in the CDPATH

        CDPATH=".:$HOME:$HOME/Documents:$HOME/Documents/src"

        # default the editor to vi

        EDITOR="vi"
        VISUAL="$EDITOR"
        FCEDIT="$EDITOR"

        # default to more unless less is available

        PAGER="more"
        if type less > /dev/null 2>&1 ; then
            PAGER="less"
            # disable terminal init, and use raw control characters
            LESS="-XR"
            # disable history and use secure mode
            LESSHISTFILE="/dev/null"
            LESSHISTSIZE="0"
            LESSSECURE="1"
            export LESS LESSHISTFILE LESSHISTSIZE LESSSECURE
        fi

        # make ksh read .profile instead of .kshrc

        ENV="$HOME/.profile"

        export PS1 PS2 PAGER EDITOR VISUAL FCEDIT CDPATH

        # set bash and ksh specific options

        case "$0" in
            *bash*|*dash*)
                set -o emacs ignoreeof noclobber
                ;;
            *zsh*)
                bindkey -e
                set -o IGNORE_EOF MARK_DIRS
                ;;
            *ksh*)

                set -o emacs

                # additional options, may not be available on
                # all ksh versions

                set -o ignoreeof >/dev/null 2>&1
                set -o noclobber >/dev/null 2>&1
                set -o markdirs >/dev/null 2>&1

                # bash style tab completion in emacs mode

                if type bind > /dev/null 2>&1 ; then
                   bind "^I=complete-list"
                   #bind "^I=complete"
                   #bind "^I^I=complete-list"
                fi

                # OpenBSD ksh command completion, based on
                # https://github.com/qbit/dotfiles/blob/master/common/dot_ksh_completions

                # git

                if type git > /dev/null 2>&1 ; then
                    set -A complete_git_1 -- \
                           branch \
                           checkout \
                           commit \
                           diff \
                           fetch \
                           pull \
                           push \
                           restore \
                           status \
                           switch \
                           > /dev/null 2>&1
                fi

                # gpg

                if type gpg > /dev/null 2>&1 ; then
                    set -A complete_gpg_1 -- \
                           --delete-keys \
                           --import \
                           --list-keys \
                           --list-public-keys \
                           --list-secret-keys \
                           --receive-keys \
                           --recv-keys \
                           --send-keys \
                           --verify \
                           > /dev/null 2>&1
                fi

                # openssl

                if type openssl > /dev/null 2>&1 ; then
                    set -A complete_openssl_1 -- \
                           md5 rmd160 sha1 sha256 sha512 \
                           > /dev/null 2>&1
                fi

                # tmux

                if type tmux > /dev/null 2>&1 ; then
                    set -A complete_tmux_1 -- \
                           attach \
                           ls \
                           new-session \
                           new-window \
                           > /dev/null 2>&1
                fi
                ;;

        esac

        # create some safety functions

        cp () { /bin/cp -i "$@" ; }
        mv () { /bin/mv -i "$@" ; }
        rm () { /bin/rm -i "$@" ; }
        ls () { /bin/ls -aFC "$@" ; }
        yes() { echo "yes" ; }
        y()   { echo "y" ; }

        # define aliases (if alias is available)

        if type alias > /dev/null 2>&1 ; then

            # run bc with -l option to load the math
            # library so that we get floating point
            # math, instead of just integer math

            alias bc="bc -l" ;

            # run w3m in monochrome mode

            alias w3m="w3m -M"
        fi

        ;;
esac

# look for and load a local shell startup files

if [ -r "$HOME/.profile_local" ] ; then
    . "$HOME/.profile_local"
fi