git-help--browse.sh

   1 #!/bin/sh
   2 #
   3 # This program launch a web browser on the html page
   4 # describing a git command.
   5 #
   6 # Copyright (c) 2007 Christian Couder
   7 # Copyright (c) 2006 Theodore Y. Ts'o
   8 #
   9 # This file is heavily stolen from git-mergetool.sh, by
  10 # Theodore Y. Ts'o (thanks) that is:
  11 #
  12 # Copyright (c) 2006 Theodore Y. Ts'o
  13 #
  14 # This file is licensed under the GPL v2, or a later version
  15 # at the discretion of Junio C Hamano or any other official
  16 # git maintainer.
  17 #
  18
  19 USAGE='[--browser=browser|--tool=browser] [cmd to display] ...'
  20
  21 # This must be capable of running outside of git directory, so
  22 # the vanilla git-sh-setup should not be used.
  23 NONGIT_OK=Yes
  24 . git-sh-setup
  25
  26 # Install data.
  27 html_dir="@@HTMLDIR@@"
  28
  29 test -f "$html_dir/git.html" || die "No documentation directory found."
  30
  31 valid_tool() {
  32         case "$1" in
  33                 firefox | iceweasel | konqueror | w3m | links | lynx | dillo)
  34                         ;; # happy
  35                 *)
  36                         return 1
  37                         ;;
  38         esac
  39 }
  40
  41 init_browser_path() {
  42         browser_path=`git config browser.$1.path`
  43         test -z "$browser_path" && browser_path=$1
  44 }
  45
  46 while test $# != 0
  47 do
  48     case "$1" in
  49         -b|--browser*|-t|--tool*)
  50             case "$#,$1" in
  51                 *,*=*)
  52                     browser=`expr "z$1" : 'z-[^=]*=\(.*\)'`
  53                     ;;
  54                 1,*)
  55                     usage ;;
  56                 *)
  57                     browser="$2"
  58                     shift ;;
  59             esac
  60             ;;
  61         --)
  62             break
  63             ;;
  64         -*)
  65             usage
  66             ;;
  67         *)
  68             break
  69             ;;
  70     esac
  71     shift
  72 done
  73
  74 if test -z "$browser"
  75 then
  76     for opt in "help.browser" "web.browser"
  77     do
  78         browser="`git config $opt`"
  79         test -z "$browser" || break
  80     done
  81     if test -n "$browser" && ! valid_tool "$browser"; then
  82             echo >&2 "git config option $opt set to unknown browser: $browser"
  83             echo >&2 "Resetting to default..."
  84             unset browser
  85     fi
  86 fi
  87
  88 if test -z "$browser" ; then
  89     if test -n "$DISPLAY"; then
  90         browser_candidates="firefox iceweasel konqueror w3m links lynx dillo"
  91         if test "$KDE_FULL_SESSION" = "true"; then
  92             browser_candidates="konqueror $browser_candidates"
  93         fi
  94     else
  95         browser_candidates="w3m links lynx"
  96     fi
  97
  98     for i in $browser_candidates; do
  99         init_browser_path $i
 100         if type "$browser_path" > /dev/null 2>&1; then
 101             browser=$i
 102             break
 103         fi
 104     done
 105     test -z "$browser" && die "No known browser available."
 106 else
 107     valid_tool "$browser" || die "Unknown browser '$browser'."
 108
 109     init_browser_path "$browser"
 110
 111     if ! type "$browser_path" > /dev/null 2>&1; then
 112         die "The browser $browser is not available as '$browser_path'."
 113     fi
 114 fi
 115
 116 pages=$(for p in "$@"; do echo "$html_dir/$p.html" ; done)
 117 test -z "$pages" && pages="$html_dir/git.html"
 118
 119 case "$browser" in
 120     firefox|iceweasel)
 121         # Check version because firefox < 2.0 does not support "-new-tab".
 122         vers=$(expr "$($browser_path -version)" : '.* \([0-9][0-9]*\)\..*')
 123         NEWTAB='-new-tab'
 124         test "$vers" -lt 2 && NEWTAB=''
 125         nohup "$browser_path" $NEWTAB $pages &
 126         ;;
 127     konqueror)
 128         case "$(basename "$browser_path")" in
 129             konqueror)
 130                 # It's simpler to use kfmclient to open a new tab in konqueror.
 131                 browser_path="$(echo "$browser_path" | sed -e 's/konqueror$/kfmclient/')"
 132                 type "$browser_path" > /dev/null 2>&1 || die "No '$browser_path' found."
 133                 eval "$browser_path" newTab $pages
 134                 ;;
 135             kfmclient)
 136                 eval "$browser_path" newTab $pages
 137                 ;;
 138             *)
 139                 nohup "$browser_path" $pages &
 140                 ;;
 141         esac
 142         ;;
 143     w3m|links|lynx)
 144         eval "$browser_path" $pages
 145         ;;
 146     dillo)
 147         nohup "$browser_path" $pages &
 148         ;;
 149 esac