bash completion: fix flags for history w/o subcmd

examples/core/ipython-completion.bash

@@ -1,131 +1,131 b''
 # load with: . ipython-completion.bash
 
 if [[ -n ${ZSH_VERSION-} ]]; then
     autoload -Uz bashcompinit && bashcompinit
 fi
 
 _ipython_get_flags()
 {
     local url=$1
     local var=$2
     local dash=$3
     if [[ "$url $var" == $__ipython_complete_last ]]; then
         opts=$__ipython_complete_last_res
         return
     fi
     # pylab and profile don't need the = and the
     # version without simplifies the special cased completion
     opts=$(ipython ${url} --help-all | grep -E "^-{1,2}[^-]" | sed -e "s/<.*//" -e "s/[^=]$/& /" -e "s/^--pylab=$//" -e "s/^--profile=$/--profile /")
     __ipython_complete_last="$url $var"
     __ipython_complete_last_res="$opts"
 }
 
 _ipython()
 {
     local cur=${COMP_WORDS[COMP_CWORD]}
     local prev=${COMP_WORDS[COMP_CWORD - 1]}
     local subcommands="notebook qtconsole console kernel profile locate history nbconvert "
     local opts=""
     if [ -z "$__ipython_complete_baseopts" ]; then
         _ipython_get_flags baseopts
         __ipython_complete_baseopts="${opts}"
     fi
     local baseopts="$__ipython_complete_baseopts"
     local mode=""
     for i in "${COMP_WORDS[@]}"; do
         [ "$cur" = "$i" ] && break
         if [[ ${subcommands} == *${i}* ]]; then
             mode="$i"
             break
         elif [[ ${i} == "--"* ]]; then
             mode="nosubcommand"
             break
         fi
     done
 
 
     if [[ ${cur} == -* ]]; then
         case $mode in
             "notebook" | "qtconsole" | "console" | "kernel" | "nbconvert")
                 _ipython_get_flags $mode
                 opts=$"${opts} ${baseopts}"
                 ;;
             "locate" | "profile")
                 _ipython_get_flags $mode
                 ;;
             "history")
-                if [[ $COMP_CWORD -ge 2 ]]; then
+                if [[ $COMP_CWORD -ge 3 ]]; then
                     # 'history trim' and 'history clear' covered by next line
                     _ipython_get_flags history\ "${COMP_WORDS[2]}"
                 else
                     _ipython_get_flags $mode
 
                 fi
                 opts=$"${opts}"
                 ;;
             *)
                 opts=$baseopts
         esac
         # don't drop the trailing space
         local IFS=$'\t\n'
         COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
         return 0
     elif [[ $mode == "profile" ]]; then
         opts="list 	create 	locate "
         local IFS=$'\t\n'
         COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
     elif [[ $mode == "history" ]]; then
         if [[ $COMP_CWORD -ge 3 ]]; then
             # drop into flags
             opts="--"
         else
             opts="trim 	clear "
         fi
         local IFS=$'\t\n'
         COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
     elif [[ $mode == "locate" ]]; then
         opts="profile"
         COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
     elif [[ ${prev} == "--pylab"* ]] || [[ ${prev} == "--gui"* ]]; then
         if [ -z "$__ipython_complete_pylab" ]; then
             __ipython_complete_pylab=`cat <<EOF | python -
 try:
     import IPython.core.shellapp as mod;
     for k in mod.InteractiveShellApp.pylab.values:
         print "%s " % k
 except:
     pass
 EOF
         `
         fi
         local IFS=$'\t\n'
         COMPREPLY=( $(compgen -W "${__ipython_complete_pylab}" -- ${cur}) )
     elif [[ ${prev} == "--profile"* ]]; then
         if [ -z  "$__ipython_complete_profiles" ]; then
         __ipython_complete_profiles=`cat <<EOF | python -
 try:
     import IPython.core.profileapp
     for k in IPython.core.profileapp.list_bundled_profiles():
         print "%s " % k
     p = IPython.core.profileapp.ProfileList()
     for k in IPython.core.profileapp.list_profiles_in(p.ipython_dir):
         print "%s " % k
 except:
     pass
 EOF
         `
         fi
         local IFS=$'\t\n'
         COMPREPLY=( $(compgen -W "${__ipython_complete_profiles}" -- ${cur}) )
     else
         if [ "$COMP_CWORD" == 1 ]; then
             local IFS=$'\t\n'
             local sub=$(echo $subcommands | sed -e "s/ / \t/g")
             COMPREPLY=( $(compgen -W "${sub}" -- ${cur}) )
         else
             COMPREPLY=( $(compgen -f -- ${cur}) )
         fi
     fi
 
 }
 complete -o default -o nospace -F _ipython ipython