Documentation: remove backslash before ~ in fast-import manual
[gitweb.git] / git-instaweb.sh
index a8c5dc0ee2202606176caae38fdcbb297296cabd..e6f6ecda177c66a79b18359f7bf8cad9c4744c8c 100755 (executable)
@@ -43,13 +43,27 @@ test -z "$port" && port=1234
 
 resolve_full_httpd () {
        case "$httpd" in
-       *apache2*|*lighttpd*)
+       *apache2*|*lighttpd*|*httpd*)
+               # yes, *httpd* covers *lighttpd* above, but it is there for clarity
                # ensure that the apache2/lighttpd command ends with "-f"
                if ! echo "$httpd" | sane_grep -- '-f *$' >/dev/null 2>&1
                then
                        httpd="$httpd -f"
                fi
                ;;
+       *plackup*)
+               # server is started by running via generated gitweb.psgi in $fqgitdir/gitweb
+               full_httpd="$fqgitdir/gitweb/gitweb.psgi"
+               httpd_only="${httpd%% *}" # cut on first space
+               return
+               ;;
+       *webrick*)
+               # server is started by running via generated webrick.rb in
+               # $fqgitdir/gitweb
+               full_httpd="$fqgitdir/gitweb/webrick.rb"
+               httpd_only="${httpd%% *}" # cut on first space
+               return
+               ;;
        esac
 
        httpd_only="$(echo $httpd | cut -f1 -d' ')"
@@ -87,8 +101,8 @@ start_httpd () {
 
        # don't quote $full_httpd, there can be arguments to it (-f)
        case "$httpd" in
-       *mongoose*)
-               #The mongoose server doesn't have a daemon mode so we'll have to fork it
+       *mongoose*|*plackup*)
+               #These servers don't have a daemon mode so we'll have to fork it
                $full_httpd "$fqgitdir/gitweb/httpd.conf" &
                #Save the pid before doing anything else (we'll print it later)
                pid=$!
@@ -117,6 +131,19 @@ stop_httpd () {
        rm -f "$fqgitdir/pid"
 }
 
+httpd_is_ready () {
+       "$PERL" -MIO::Socket::INET -e "
+local \$| = 1; # turn on autoflush
+exit if (IO::Socket::INET->new('127.0.0.1:$port'));
+print 'Waiting for \'$httpd\' to start ..';
+do {
+       print '.';
+       sleep(1);
+} until (IO::Socket::INET->new('127.0.0.1:$port'));
+print qq! (done)\n!;
+"
+}
+
 while test $# != 0
 do
        case "$1" in
@@ -168,40 +195,53 @@ GITWEB_CONFIG="$fqgitdir/gitweb/gitweb_config.perl"
 export GIT_EXEC_PATH GIT_DIR GITWEB_CONFIG
 
 webrick_conf () {
+       # webrick seems to have no way of passing arbitrary environment
+       # variables to the underlying CGI executable, so we wrap the
+       # actual gitweb.cgi using a shell script to force it
+  wrapper="$fqgitdir/gitweb/$httpd/wrapper.sh"
+       cat > "$wrapper" <<EOF
+#!/bin/sh
+# we use this shell script wrapper around the real gitweb.cgi since
+# there appears to be no other way to pass arbitrary environment variables
+# into the CGI process
+GIT_EXEC_PATH=$GIT_EXEC_PATH GIT_DIR=$GIT_DIR GITWEB_CONFIG=$GITWEB_CONFIG
+export GIT_EXEC_PATH GIT_DIR GITWEB_CONFIG
+exec $root/gitweb.cgi
+EOF
+       chmod +x "$wrapper"
+
+       # This assumes _ruby_ is in the user's $PATH. that's _one_
+       # portable way to run ruby, which could be installed anywhere, really.
        # generate a standalone server script in $fqgitdir/gitweb.
        cat >"$fqgitdir/gitweb/$httpd.rb" <<EOF
+#!/usr/bin/env ruby
 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
+require 'logger'
+options = {
+  :Port => $port,
+  :DocumentRoot => "$root",
+  :Logger => Logger.new('$fqgitdir/gitweb/error.log'),
+  :AccessLog => [
+    [ Logger.new('$fqgitdir/gitweb/access.log'),
+      WEBrick::AccessLog::COMBINED_LOG_FORMAT ]
+  ],
+  :DirectoryIndex => ["gitweb.cgi"],
+  :CGIInterpreter => "$wrapper",
+  :StartCallback => lambda do
+    File.open("$fqgitdir/pid", "w") { |f| f.puts Process.pid }
+  end,
+  :ServerType => WEBrick::Daemon,
+}
+options[:BindAddress] = '127.0.0.1' if "$local" == "true"
 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: $port
-:DocumentRoot: "$root"
-:DirectoryIndex: ["gitweb.cgi"]
-:PidFile: "$fqgitdir/pid"
-EOF
-       test "$local" = true && echo ':BindAddress: "127.0.0.1"' >> "$conf"
+       chmod +x "$fqgitdir/gitweb/$httpd.rb"
+       # configuration is embedded in server script file, webrick.rb
+       rm -f "$conf"
 }
 
 lighttpd_conf () {
@@ -281,7 +321,13 @@ EOF
 }
 
 apache2_conf () {
-       test -z "$module_path" && module_path=/usr/lib/apache2/modules
+       if test -z "$module_path"
+       then
+               test -d "/usr/lib/httpd/modules" &&
+                       module_path="/usr/lib/httpd/modules"
+               test -d "/usr/lib/apache2/modules" &&
+                       module_path="/usr/lib/apache2/modules"
+       fi
        bind=
        test x"$local" = xtrue && bind='127.0.0.1:'
        echo 'text/css css' > "$fqgitdir/mime.types"
@@ -295,8 +341,10 @@ PidFile "$fqgitdir/pid"
 Listen $bind$port
 EOF
 
-       for mod in mime dir; do
-               if test -e $module_path/mod_${mod}.so; then
+       for mod in mime dir env log_config
+       do
+               if test -e $module_path/mod_${mod}.so
+               then
                        echo "LoadModule ${mod}_module " \
                             "$module_path/mod_${mod}.so" >> "$conf"
                fi
@@ -315,7 +363,7 @@ EOF
                cat >> "$conf" <<EOF
 LoadModule perl_module $module_path/mod_perl.so
 PerlPassEnv GIT_DIR
-PerlPassEnv GIT_EXEC_DIR
+PerlPassEnv GIT_EXEC_PATH
 PerlPassEnv GITWEB_CONFIG
 <Location /gitweb.cgi>
        SetHandler perl-script
@@ -345,6 +393,9 @@ EOF
                        echo "ScriptSock logs/gitweb.sock" >> "$conf"
                fi
                cat >> "$conf" <<EOF
+PassEnv GIT_DIR
+PassEnv GIT_EXEC_PATH
+PassEnv GITWEB_CONFIG
 AddHandler cgi-script .cgi
 <Location /gitweb.cgi>
        Options +ExecCGI
@@ -377,6 +428,152 @@ mime_types        .gz=application/x-gzip,.tar.gz=application/x-tgz,.tgz=application/x-t
 EOF
 }
 
+plackup_conf () {
+       # generate a standalone 'plackup' server script in $fqgitdir/gitweb
+       # with embedded configuration; it does not use "$conf" file
+       cat > "$fqgitdir/gitweb/gitweb.psgi" <<EOF
+#!$PERL
+
+# gitweb - simple web interface to track changes in git repositories
+#          PSGI wrapper and server starter (see http://plackperl.org)
+
+use strict;
+
+use IO::Handle;
+use Plack::MIME;
+use Plack::Builder;
+use Plack::App::WrapCGI;
+use CGI::Emulate::PSGI 0.07; # minimum version required to work with gitweb
+
+# mimetype mapping (from lighttpd_conf)
+Plack::MIME->add_type(
+       ".pdf"          =>      "application/pdf",
+       ".sig"          =>      "application/pgp-signature",
+       ".spl"          =>      "application/futuresplash",
+       ".class"        =>      "application/octet-stream",
+       ".ps"           =>      "application/postscript",
+       ".torrent"      =>      "application/x-bittorrent",
+       ".dvi"          =>      "application/x-dvi",
+       ".gz"           =>      "application/x-gzip",
+       ".pac"          =>      "application/x-ns-proxy-autoconfig",
+       ".swf"          =>      "application/x-shockwave-flash",
+       ".tar.gz"       =>      "application/x-tgz",
+       ".tgz"          =>      "application/x-tgz",
+       ".tar"          =>      "application/x-tar",
+       ".zip"          =>      "application/zip",
+       ".mp3"          =>      "audio/mpeg",
+       ".m3u"          =>      "audio/x-mpegurl",
+       ".wma"          =>      "audio/x-ms-wma",
+       ".wax"          =>      "audio/x-ms-wax",
+       ".ogg"          =>      "application/ogg",
+       ".wav"          =>      "audio/x-wav",
+       ".gif"          =>      "image/gif",
+       ".jpg"          =>      "image/jpeg",
+       ".jpeg"         =>      "image/jpeg",
+       ".png"          =>      "image/png",
+       ".xbm"          =>      "image/x-xbitmap",
+       ".xpm"          =>      "image/x-xpixmap",
+       ".xwd"          =>      "image/x-xwindowdump",
+       ".css"          =>      "text/css",
+       ".html"         =>      "text/html",
+       ".htm"          =>      "text/html",
+       ".js"           =>      "text/javascript",
+       ".asc"          =>      "text/plain",
+       ".c"            =>      "text/plain",
+       ".cpp"          =>      "text/plain",
+       ".log"          =>      "text/plain",
+       ".conf"         =>      "text/plain",
+       ".text"         =>      "text/plain",
+       ".txt"          =>      "text/plain",
+       ".dtd"          =>      "text/xml",
+       ".xml"          =>      "text/xml",
+       ".mpeg"         =>      "video/mpeg",
+       ".mpg"          =>      "video/mpeg",
+       ".mov"          =>      "video/quicktime",
+       ".qt"           =>      "video/quicktime",
+       ".avi"          =>      "video/x-msvideo",
+       ".asf"          =>      "video/x-ms-asf",
+       ".asx"          =>      "video/x-ms-asf",
+       ".wmv"          =>      "video/x-ms-wmv",
+       ".bz2"          =>      "application/x-bzip",
+       ".tbz"          =>      "application/x-bzip-compressed-tar",
+       ".tar.bz2"      =>      "application/x-bzip-compressed-tar",
+       ""              =>      "text/plain"
+);
+
+my \$app = builder {
+       # to be able to override \$SIG{__WARN__} to log build time warnings
+       use CGI::Carp; # it sets \$SIG{__WARN__} itself
+
+       my \$logdir = "$fqgitdir/gitweb/$httpd_only";
+       open my \$access_log_fh, '>>', "\$logdir/access.log"
+               or die "Couldn't open access log '\$logdir/access.log': \$!";
+       open my \$error_log_fh,  '>>', "\$logdir/error.log"
+               or die "Couldn't open error log '\$logdir/error.log': \$!";
+
+       \$access_log_fh->autoflush(1);
+       \$error_log_fh->autoflush(1);
+
+       # redirect build time warnings to error.log
+       \$SIG{'__WARN__'} = sub {
+               my \$msg = shift;
+               # timestamp warning like in CGI::Carp::warn
+               my \$stamp = CGI::Carp::stamp();
+               \$msg =~ s/^/\$stamp/gm;
+               print \$error_log_fh \$msg;
+       };
+
+       # write errors to error.log, access to access.log
+       enable 'AccessLog',
+               format => "combined",
+               logger => sub { print \$access_log_fh @_; };
+       enable sub {
+               my \$app = shift;
+               sub {
+                       my \$env = shift;
+                       \$env->{'psgi.errors'} = \$error_log_fh;
+                       \$app->(\$env);
+               }
+       };
+       # gitweb currently doesn't work with $SIG{CHLD} set to 'IGNORE',
+       # because it uses 'close $fd or die...' on piped filehandle $fh
+       # (which causes the parent process to wait for child to finish).
+       enable_if { \$SIG{'CHLD'} eq 'IGNORE' } sub {
+               my \$app = shift;
+               sub {
+                       my \$env = shift;
+                       local \$SIG{'CHLD'} = 'DEFAULT';
+                       local \$SIG{'CLD'}  = 'DEFAULT';
+                       \$app->(\$env);
+               }
+       };
+       # serve static files, i.e. stylesheet, images, script
+       enable 'Static',
+               path => sub { m!\.(js|css|png)\$! && s!^/gitweb/!! },
+               root => "$root/",
+               encoding => 'utf-8'; # encoding for 'text/plain' files
+       # convert CGI application to PSGI app
+       Plack::App::WrapCGI->new(script => "$root/gitweb.cgi")->to_app;
+};
+
+# make it runnable as standalone app,
+# like it would be run via 'plackup' utility
+if (__FILE__ eq \$0) {
+       require Plack::Runner;
+
+       my \$runner = Plack::Runner->new();
+       \$runner->parse_options(qw(--env deployment --port $port),
+                              "$local" ? qw(--host 127.0.0.1) : ());
+       \$runner->run(\$app);
+}
+__END__
+EOF
+
+       chmod a+x "$fqgitdir/gitweb/gitweb.psgi"
+       # configuration is embedded in server script file, gitweb.psgi
+       rm -f "$conf"
+}
+
 gitweb_conf() {
        cat > "$fqgitdir/gitweb/gitweb_config.perl" <<EOF
 #!/usr/bin/perl
@@ -395,7 +592,7 @@ case "$httpd" in
 *lighttpd*)
        lighttpd_conf
        ;;
-*apache2*)
+*apache2*|*httpd*)
        apache2_conf
        ;;
 webrick)
@@ -404,6 +601,9 @@ webrick)
 *mongoose*)
        mongoose_conf
        ;;
+*plackup*)
+       plackup_conf
+       ;;
 *)
        echo "Unknown httpd specified: $httpd"
        exit 1
@@ -414,7 +614,7 @@ start_httpd
 url=http://127.0.0.1:$port
 
 if test -n "$browser"; then
-       git web--browse -b "$browser" $url || echo $url
+       httpd_is_ready && git web--browse -b "$browser" $url || echo $url
 else
-       git web--browse -c "instaweb.browser" $url || echo $url
+       httpd_is_ready && git web--browse -c "instaweb.browser" $url || echo $url
 fi