diff options
Diffstat (limited to 'bin/han')
| -rwxr-xr-x | bin/han | 22 |
1 files changed, 11 insertions, 11 deletions
@@ -3,31 +3,31 @@ self=han # Give up completely if no BASH_VERSINFO (<2.0) -if ! [ -n "$BASH_VERSINFO" ] ; then - exit -fi +[ -n "$BASH_VERSINFO" ] || exit # Figure out the options with which we can call help; Bash >=4.0 has an -m -# option which prints the help output in a man-page like format. +# option which prints the help output in a man-page like format declare -a helpopts if ((BASH_VERSINFO[0] >= 4)) ; then helpopts=(-m) fi -# Create a temporary file and set up a trap to get rid of it. -tmpdir=$(mktemp -dt "$self".XXXXXX) || exit +# Create a temporary directory with name in $td, and a trap to remove it when +# the script exits +td= cleanup() { - rm -fr -- "$tmpdir" + [[ -n "$td" ]] && rm -fr -- "$td" } trap cleanup EXIT +td=$(mktd "$self") || exit # If we have exactly one argument and a call to the help builtin with that -# argument succeeds, display its output with `pager -s`. +# argument succeeds, display its output with `pager -s` if (($# == 1)) && - help "${helpopts[@]}" "$1" >"$tmpdir"/"$1".help 2>/dev/null ; then - (cd -- "$tmpdir" && pager -s -- "$1".help) + help "${helpopts[@]}" "$1" >"$td"/"$1".help 2>/dev/null ; then + (cd -- "$td" && "$PAGER" -s -- "$1".help) -# Otherwise, just pass all the arguments to man(1). +# Otherwise, just pass all the arguments to man(1) else man "$@" fi |