#!/bin/bash

function usage {
echo -e ' Mercurial menu
note: some commands require color= in [extensions]

Usage:   hgmenu [args]
   hgmenu will interactively query for a command to use. 
   [args] will be passed on to that command

'
}

function argsreq {
    echo Arguments required
    exit
}

while getopts h opt
do  case "$opt" in
    h)
        usage
        exit
    ;;
    esac
done

echo 'Mercurial:
a: Add files*
c: Commit
d: Diff
l: Log
m: merge
p: Pull
P: Push
r: Remove files*
u: Update
s: Status
t: Start thg
v: View

q: Quit

* Requires arguments
'

echo Current arguments: "$@"
read -p "Command: " -s -N 1 CMD
echo ""
LESS="less -R -S"
case "$CMD" in
    a)
       [[ -z "$@" ]] && argsreq
       hg add "$@"
    ;;
    c)
       read -p "Commit message: " MSG
       hg commit -m "$MSG" "$@"
    ;;
    d)
       hg diff --color always "$@"| $LESS
    ;;
    l)
       hg log -G --color always "$@" | $LESS
    ;;
    m)
       hg merge "$@"
    ;;
    p)
       hg pull "$@"
    ;;
    P)
       hg push "$@"
    ;;
    r)
       [[ -z "$@" ]] && argsreq
       hg remove "$@"
    ;;
    u)
       hg update "$@"
    ;;
    s)
       hg status --color always "$@" | $LESS
    ;;
    t)
       thg "$@"&
    ;;
    v)
       hg view "$@"&
    ;;
    q)
       exit
    ;;
esac