Code

Fix some "variable might be used uninitialized" warnings
[git.git] / git-web--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 #
19 USAGE='[--browser=browser|--tool=browser] [--config=conf.var] url/file ...'
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
26 valid_custom_tool()
27 {
28         browser_cmd="$(git config "browser.$1.cmd")"
29         test -n "$browser_cmd"
30 }
32 valid_tool() {
33         case "$1" in
34         firefox | iceweasel | seamonkey | iceape | \
35         chrome | google-chrome | chromium | chromium-browser |\
36         konqueror | opera | w3m | elinks | links | lynx | dillo | open | start)
37                 ;; # happy
38         *)
39                 valid_custom_tool "$1" || return 1
40                 ;;
41         esac
42 }
44 init_browser_path() {
45         browser_path=$(git config "browser.$1.path")
46         if test -z "$browser_path" &&
47            test "$1" = chromium &&
48            type chromium-browser >/dev/null 2>&1
49         then
50                 browser_path=chromium-browser
51         fi
52         : ${browser_path:="$1"}
53 }
55 while test $# != 0
56 do
57         case "$1" in
58         -b|--browser*|-t|--tool*)
59                 case "$#,$1" in
60                 *,*=*)
61                         browser=`expr "z$1" : 'z-[^=]*=\(.*\)'`
62                         ;;
63                 1,*)
64                         usage ;;
65                 *)
66                         browser="$2"
67                         shift ;;
68                 esac
69                 ;;
70         -c|--config*)
71                 case "$#,$1" in
72                 *,*=*)
73                         conf=`expr "z$1" : 'z-[^=]*=\(.*\)'`
74                         ;;
75                 1,*)
76                         usage ;;
77                 *)
78                         conf="$2"
79                         shift ;;
80                 esac
81                 ;;
82         --)
83                 break
84                 ;;
85         -*)
86                 usage
87                 ;;
88         *)
89                 break
90                 ;;
91         esac
92         shift
93 done
95 test $# = 0 && usage
97 if test -z "$browser"
98 then
99         for opt in "$conf" "web.browser"
100         do
101                 test -z "$opt" && continue
102                 browser="`git config $opt`"
103                 test -z "$browser" || break
104         done
105         if test -n "$browser" && ! valid_tool "$browser"; then
106                 echo >&2 "git config option $opt set to unknown browser: $browser"
107                 echo >&2 "Resetting to default..."
108                 unset browser
109         fi
110 fi
112 if test -z "$browser" ; then
113         if test -n "$DISPLAY"; then
114                 browser_candidates="firefox iceweasel google-chrome chrome chromium chromium-browser konqueror opera seamonkey iceape w3m elinks links lynx dillo"
115                 if test "$KDE_FULL_SESSION" = "true"; then
116                         browser_candidates="konqueror $browser_candidates"
117                 fi
118         else
119                 browser_candidates="w3m elinks links lynx"
120         fi
121         # SECURITYSESSIONID indicates an OS X GUI login session
122         if test -n "$SECURITYSESSIONID" \
123                 -o "$TERM_PROGRAM" = "Apple_Terminal" ; then
124                 browser_candidates="open $browser_candidates"
125         fi
126         # /bin/start indicates MinGW
127         if test -x /bin/start; then
128                 browser_candidates="start $browser_candidates"
129         fi
131         for i in $browser_candidates; do
132                 init_browser_path $i
133                 if type "$browser_path" > /dev/null 2>&1; then
134                         browser=$i
135                         break
136                 fi
137         done
138         test -z "$browser" && die "No known browser available."
139 else
140         valid_tool "$browser" || die "Unknown browser '$browser'."
142         init_browser_path "$browser"
144         if test -z "$browser_cmd" && ! type "$browser_path" > /dev/null 2>&1; then
145                 die "The browser $browser is not available as '$browser_path'."
146         fi
147 fi
149 case "$browser" in
150 firefox|iceweasel|seamonkey|iceape)
151         # Check version because firefox < 2.0 does not support "-new-tab".
152         vers=$(expr "$($browser_path -version)" : '.* \([0-9][0-9]*\)\..*')
153         NEWTAB='-new-tab'
154         test "$vers" -lt 2 && NEWTAB=''
155         "$browser_path" $NEWTAB "$@" &
156         ;;
157 google-chrome|chrome|chromium|chromium-browser)
158         # No need to specify newTab. It's default in chromium
159         eval "$browser_path" "$@" &
160         ;;
161 konqueror)
162         case "$(basename "$browser_path")" in
163         konqueror)
164                 # It's simpler to use kfmclient to open a new tab in konqueror.
165                 browser_path="$(echo "$browser_path" | sed -e 's/konqueror$/kfmclient/')"
166                 type "$browser_path" > /dev/null 2>&1 || die "No '$browser_path' found."
167                 eval "$browser_path" newTab "$@"
168                 ;;
169         kfmclient)
170                 eval "$browser_path" newTab "$@"
171                 ;;
172         *)
173                 "$browser_path" "$@" &
174                 ;;
175         esac
176         ;;
177 w3m|elinks|links|lynx|open)
178         eval "$browser_path" "$@"
179         ;;
180 start)
181         exec "$browser_path" '"web-browse"' "$@"
182         ;;
183 opera|dillo)
184         "$browser_path" "$@" &
185         ;;
186 *)
187         if test -n "$browser_cmd"; then
188                 ( eval $browser_cmd "$@" )
189         fi
190         ;;
191 esac