75 lines
2.7 KiB
Bash
Executable File
75 lines
2.7 KiB
Bash
Executable File
#!/bin/sh -e
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# open info-page, man-page or command help
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# depends: unbuffer
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# optdepends: highlight(dotfiles)
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# TODO show tldr page
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paginate="${PAGER:-less} +Gg"
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case "$1" in
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(-d) browse=1; shift;;
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(-v) set -o xtrace; shift;;
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("") echo "Provide an object to get help on or check out the following options:
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tldr
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info
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man
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quickref; test-colors; arg-test / arg-notify"
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esac
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showinfo() {
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which info >/dev/null 2>&1 &&
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case $EDITOR in
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(*emacs*) info "$@" -w | grep -v "manpages" | grep -q . && $EDITOR --eval "(progn (info \"$1\") (if \"$2\" (Info-index \"$2\")) (delete-other-windows))";;
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(*vim) info "$@" -w | grep -q . && $EDITOR -R -M -c "Info $1" +only;;
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(*) info -f "$1" $(test "$2" && echo "--index-search=$2") 2>/dev/null;;
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esac
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}
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cmd="$1"
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case "$cmd" in
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# TODO extract help in standard format from scripts
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(hunt|rdoc|gh|chordpro|bat|pdfjam|reflector|topgrade|r128gain|7z|kubectl|diffr|docker|jrnl|difft|wiked-diff) unbuffer "$@" --help | $paginate;;
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(caddy|stretchly|go|fossil|flutter) test "$cmd" = "fossil" -a $# -eq 1 && repo="$(locate -b -l 1 "fossil*.fossil")" && fossil ui "$repo" && exit
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# TODO view fossil ui in terminal
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shift
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"$cmd" help "$@" | $paginate;;
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# Non-standard help flags
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(doom) "$@" --help;;
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(mpw) "$@" -h 2>&1 | $paginate;;
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(plantuml|java) unbuffer "$@" -help | $paginate;;
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(rails) { "$@" -H && "$@" --help; } | $paginate;;
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(vlc) shift && unbuffer vlc --full-help "$@" | $paginate;;
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(kdeconnect*) shift && kdeconnect-cli --help-all "$@" | $paginate;;
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# Show manpage with tweaks
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(pandoc) man pandoc; highlight "Extensions" && pandoc --list-extensions | paste -s -d' ';;
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(swaymsg) test $# -gt 1 && shift && man sway "$@" || man swaymsg;;
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(swaymsg-*) man sway "${1#swaymsg-}";;
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(zsh|zmv) # https://unix.stackexchange.com/questions/19290/zmv-for-zsh-dry-runs-and-man-pages
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for last; do true; done
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# need to install zsh-doc package for info pages
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showinfo zsh $(test "$last" != zsh && echo "$last") ||
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LESS="$LESS$(test "$last" != zsh && echo "+/^ *$last *\\[")" man zshall;;
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(emacs) man emacs;;
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(*) showinfo "$@" || man "$@" || return=$?
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if test "${return:-0}" -gt 0 && which "$cmd" >/dev/null
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then { unbuffer "$@" --help || { test $? == 1 && "$@" -help; } || { test $? == 1 && "$@" -h; }; } 2>&1 | $paginate
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return=$?
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fi;;
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esac
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docs="/usr/share/doc/$cmd"
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if test -d "$docs"; then
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len() { echo "$1" | wc -c; }
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shortest() {
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read shortest
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while read in
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do test $(len $shortest) -gt $(len $in) && shortest=$in
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done
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echo $shortest
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}
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file="$(find $docs -name index.html | shortest | grep . || find $docs -name $1*.html | shortest)"
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if test -z "$browse"
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then echo "Find more in file://${file:-docs}"
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else firefox "file://$file"
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fi
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fi
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exit $return
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