git-rebase -i: clean-up error check codepath.

diff --git a/git-instaweb.sh b/git-instaweb.sh
index 2ca487d7d5e5e35bc8f3ceaa04389e5bbad9a098..ad0723ccc64cc2cb7d0e79a165a68707d3ddfde7 100755 (executable)
--- a/git-instaweb.sh
+++ b/git-instaweb.sh
@@ -2,9 +2,22 @@
 #
 # Copyright (c) 2006 Eric Wong
 #
-USAGE='[--start] [--stop] [--restart]
-  [--local] [--httpd=<httpd>] [--port=<port>] [--browser=<browser>]
-  [--module-path=<path> (for Apache2 only)]'
+
+PERL='@@PERL@@'
+OPTIONS_KEEPDASHDASH=
+OPTIONS_SPEC="\
+git-instaweb [options] (--start | --stop | --restart)
+--
+l,local        only bind on 127.0.0.1
+p,port=        the port to bind to
+d,httpd=       the command to launch
+b,browser=     the browser to launch
+m,module-path= the module path (only needed for apache2)
+ Action
+stop           stop the web server
+start          start the web server
+restart        restart the web server
+"
 
 . git-sh-setup
 
@@ -12,6 +25,7 @@ fqgitdir="$GIT_DIR"
 local="`git config --bool --get instaweb.local`"
 httpd="`git config --get instaweb.httpd`"
 browser="`git config --get instaweb.browser`"
+test -z "$browser" && browser="`git config --get web.browser`"
 port=`git config --get instaweb.port`
 module_path="`git config --get instaweb.modulepath`"
 
@@ -36,7 +50,9 @@ start_httpd () {
        else
                # many httpds are installed in /usr/sbin or /usr/local/sbin
                # these days and those are not in most users $PATHs
-               for i in /usr/local/sbin /usr/sbin
+               # in addition, we may have generated a server script
+               # in $fqgitdir/gitweb.
+               for i in /usr/local/sbin /usr/sbin "$fqgitdir/gitweb"
                do
                        if test -x "$i/$httpd_only"
                        then
@@ -76,52 +92,26 @@ do
                start_httpd
                exit 0
                ;;
-       --local|-l)
+       -l|--local)
                local=true
                ;;
-       -d|--httpd|--httpd=*)
-               case "$#,$1" in
-               *,*=*)
-                       httpd=`expr "$1" : '-[^=]*=\(.*\)'` ;;
-               1,*)
-                       usage ;;
-               *)
-                       httpd="$2"
-                       shift ;;
-               esac
+       -d|--httpd)
+               shift
+               httpd="$1"
+               ;;
+       -b|--browser)
+               shift
+               browser="$1"
                ;;
-       -b|--browser|--browser=*)
-               case "$#,$1" in
-               *,*=*)
-                       browser=`expr "$1" : '-[^=]*=\(.*\)'` ;;
-               1,*)
-                       usage ;;
-               *)
-                       browser="$2"
-                       shift ;;
-               esac
+       -p|--port)
+               shift
+               port="$1"
                ;;
-       -p|--port|--port=*)
-               case "$#,$1" in
-               *,*=*)
-                       port=`expr "$1" : '-[^=]*=\(.*\)'` ;;
-               1,*)
-                       usage ;;
-               *)
-                       port="$2"
-                       shift ;;
-               esac
+       -m|--module-path)
+               shift
+               module_path="$1"
                ;;
-       -m|--module-path=*|--module-path)
-               case "$#,$1" in
-               *,*=*)
-                       module_path=`expr "$1" : '-[^=]*=\(.*\)'` ;;
-               1,*)
-                       usage ;;
-               *)
-                       module_path="$2"
-                       shift ;;
-               esac
+       --)
                ;;
        *)
                usage
@@ -136,6 +126,43 @@ GIT_DIR="$fqgitdir"
 export GIT_EXEC_PATH GIT_DIR
 
 
+webrick_conf () {
+       # generate a standalone server script in $fqgitdir/gitweb.
+       cat >"$fqgitdir/gitweb/$httpd.rb" <<EOF
+require 'webrick'
+require 'yaml'
+options = YAML::load_file(ARGV[0])
+options[:StartCallback] = proc do
+  File.open(options[:PidFile],"w") do |f|
+    f.puts Process.pid
+  end
+end
+options[:ServerType] = WEBrick::Daemon
+server = WEBrick::HTTPServer.new(options)
+['INT', 'TERM'].each do |signal|
+  trap(signal) {server.shutdown}
+end
+server.start
+EOF
+       # generate a shell script to invoke the above ruby script,
+       # which assumes _ruby_ is in the user's $PATH. that's _one_
+       # portable way to run ruby, which could be installed anywhere,
+       # really.
+       cat >"$fqgitdir/gitweb/$httpd" <<EOF
+#!/bin/sh
+exec ruby "$fqgitdir/gitweb/$httpd.rb" \$*
+EOF
+       chmod +x "$fqgitdir/gitweb/$httpd"
+
+       cat >"$conf" <<EOF
+:Port: $port
+:DocumentRoot: "$fqgitdir/gitweb"
+:DirectoryIndex: ["gitweb.cgi"]
+:PidFile: "$fqgitdir/pid"
+EOF
+       test "$local" = true && echo ':BindAddress: "127.0.0.1"' >> "$conf"
+}
+
 lighttpd_conf () {
        cat > "$conf" <<EOF
 server.document-root = "$fqgitdir/gitweb"
@@ -206,16 +233,18 @@ EOF
 }
 
 script='
-s#^\(my\|our\) $projectroot =.*#\1 $projectroot = "'$(dirname "$fqgitdir")'";#
-s#\(my\|our\) $gitbin =.*#\1 $gitbin = "'$GIT_EXEC_PATH'";#
-s#\(my\|our\) $projects_list =.*#\1 $projects_list = $projectroot;#
-s#\(my\|our\) $git_temp =.*#\1 $git_temp = "'$fqgitdir/gitweb/tmp'";#'
+s#^(my|our) \$projectroot =.*#$1 \$projectroot = "'$(dirname "$fqgitdir")'";#;
+s#(my|our) \$gitbin =.*#$1 \$gitbin = "'$GIT_EXEC_PATH'";#;
+s#(my|our) \$projects_list =.*#$1 \$projects_list = \$projectroot;#;
+s#(my|our) \$git_temp =.*#$1 \$git_temp = "'$fqgitdir/gitweb/tmp'";#;'
 
 gitweb_cgi () {
        cat > "$1.tmp" <<\EOFGITWEB
 @@GITWEB_CGI@@
 EOFGITWEB
-       sed "$script" "$1.tmp"  > "$1"
+       # Use the configured full path to perl to match the generated
+       # scripts' 'hashpling' line
+       "$PERL" -p -e "$script" "$1.tmp"  > "$1"
        chmod +x "$1"
        rm -f "$1.tmp"
 }
@@ -236,6 +265,9 @@ case "$httpd" in
 *apache2*)
        apache2_conf
        ;;
+webrick)
+       webrick_conf
+       ;;
 *)
        echo "Unknown httpd specified: $httpd"
        exit 1
@@ -244,4 +276,4 @@ esac
 
 start_httpd
 url=http://127.0.0.1:$port
-"$browser" $url || echo $url
+test -n "$browser" && "$browser" $url || echo $url