source: branches/locker-dev/locker/deploy/bin/rails @ 1410

Last change on this file since 1410 was 1410, checked in by gdb, 13 years ago
Changed rails reloader script to reload if a new file is created. Have tested this on a toy app.
  • Property svn:executable set to *
File size: 5.5 KB
Line 
1#!/usr/bin/perl
2use strict;
3use FindBin qw($Bin);
4use lib $Bin;
5use onserver;
6use Tie::File;
7
8setup();
9
10sub make_db {
11    my($type) = @_;
12    print "\nCreating $type SQL database for $sname...\n";
13    open GETPWD, '-|', "/mit/scripts/sql/bin$scriptsdev/get-password";
14    ($sqlhost, $sqluser, $sqlpass) = split(/\s/, <GETPWD>);
15    close GETPWD;
16    open SQLDB, '-|', "/mit/scripts/sql/bin$scriptsdev/get-next-database", "${addrlast}_${type}";
17    $sqldb = <SQLDB>;
18    close SQLDB;
19    open SQLDB, '-|', "/mit/scripts/sql/bin$scriptsdev/create-database", $sqldb;
20    $sqldb = <SQLDB>;
21    close SQLDB;
22    if($sqldb eq "") {
23        print "\nERROR:\n";
24        print "Your SQL account failed to create a SQL database.\n";
25        print "You should log in at http://sql.mit.edu to check whether\n";
26        print "your SQL account is at its database limit or its storage limit.\n";
27        print "If you cannot determine the cause of the problem, please\n";
28        print "feel free to contact sql\@mit.edu for assistance.\n";
29        open FAILED, ">.failed";
30        close FAILED;
31        exit 1;
32    }
33    return $sqldb;
34}
35
36my $dev_db = make_db("development");
37my $test_db = make_db("test");
38my $prod_db = make_db("production");
39
40system qw{rails -D -d mysql .};
41
42open PUBLIC_HTACCESS, ">public/.htaccess";
43print PUBLIC_HTACCESS <<EOF;
44# General Apache options
45Options +FollowSymLinks +ExecCGI
46
47# If you don't want Rails to look in certain directories,
48# use the following rewrite rules so that Apache won't rewrite certain requests
49#
50# Example:
51#   RewriteCond %{REQUEST_URI} ^/notrails.*
52#   RewriteRule .* - [L]
53
54# Redirect all requests not available on the filesystem to Rails
55# By default the cgi dispatcher is used which is very slow
56#
57# For better performance replace the dispatcher with the fastcgi one
58#
59# Example:
60#   RewriteRule ^(.*)\$ dispatch.fcgi [QSA,L]
61RewriteEngine On
62
63# If your Rails application is accessed via an Alias directive,
64# then you MUST also set the RewriteBase in this htaccess file.
65#
66# Example:
67#   Alias /myrailsapp /path/to/myrailsapp/public
68#   RewriteBase /myrailsapp
69
70RewriteRule ^\$ index.html [QSA]
71RewriteRule ^([^.]+)\$ \$1.html [QSA]
72RewriteCond %{REQUEST_FILENAME} !-f
73RewriteRule ^(.*)\$ dispatch.fcgi [QSA,L]
74
75# In case Rails experiences terminal errors
76# Instead of displaying this message you can supply a file here which will be rendered instead
77#
78# Example:
79#   ErrorDocument 500 /500.html
80
81RewriteBase /$addrend/public/
82EOF
83
84open HTACCESS, ">.htaccess";
85print HTACCESS <<EOF;
86RewriteEngine On
87RewriteRule ^(.*)\$ public/\$1 [QSA,L]
88RewriteBase /$addrend/
89EOF
90
91tie my @railsenv, 'Tie::File', 'config/environment.rb';
92unshift @railsenv, "# ENV['RAILS_ENV'] ||= 'production'";
93unshift @railsenv, "# Uncomment below to put Rails into production mode";
94unshift @railsenv, "";
95unshift @railsenv, "ENV['RAILS_RELATIVE_URL_ROOT'] = \"/$addrend\"";
96untie @railsenv;
97
98tie my @railsdb, 'Tie::File', 'config/database.yml';
99for (@railsdb) {
100    s/username:.*$/username: $sqluser/;
101    s/password:.*$/password: $sqlpass/;
102    s/host:.*$/host: $sqlhost/;
103    s/database:.*_development.*/database: $dev_db/;
104    s/database:.*_test.*/database: $test_db/;
105    s/database:.*_production.*/database: $prod_db/;
106}
107untie @railsdb;
108
109tie my @railswelcome, 'Tie::File', 'public/index.html';
110for (@railswelcome) {
111    s/Create your database/Sync your database/;
112    s/to create your database\..*/to create tables in your database.<\/p>/;
113}
114untie @railswelcome;
115
116tie my @railsfcgi, 'Tie::File', 'public/dispatch.fcgi';
117for (@railsfcgi) {
118    s/^[^#]*RailsFCGIHandler/## Commented out by scripts.mit.edu autoinstaller\n## RailsFCGIHandler/;
119}
120untie @railsfcgi;
121open RAILSFCGI, ">>public/dispatch.fcgi";
122print RAILSFCGI <<EOF;
123
124## Added by scripts.mit.edu autoinstaller to reload when app code changes
125Thread.abort_on_exception = true
126
127t1 = Thread.new do
128   RailsFCGIHandler.process!
129end
130
131t2 = Thread.new do
132   Thread.current[:watched_dirs] = ['app', 'config', 'db', 'lib', 'public']
133   Thread.current[:watched_extensions] = //
134   # Iterations since last reload
135   Thread.current[:iterations] = 0
136
137   def modified(file)
138     begin
139       mtime = File.stat(file).mtime
140     rescue
141       false
142     else
143       if Thread.current[:iterations] == 0
144         Thread.current[:modifications][file] = mtime
145       end
146       Thread.current[:modifications][file] != mtime
147     end
148   end
149
150   # Don't symlink yourself into a loop.  Please.  Things will still work
151   # (Linux limits your symlink depth) but you will be sad
152   def modified_dir(dir)
153     Dir.new(dir).each do |file|
154       absfile = File.join(dir, file)
155       if FileTest.directory? absfile
156         next if file == '.' or file == '..'
157         return true if modified_dir(absfile)
158       else
159         return true if Thread.current[:watched_extensions] =~ absfile &&
160           modified(absfile)
161       end
162     end
163     false
164   end
165
166   def reload
167     Thread.current[:modifications] = {}
168     Thread.current[:iterations] = 0
169     RailsFCGIHandler.reload!
170   end
171
172   Thread.current[:modifications] = {}
173   # Wait until the modify time changes, then reload.
174   while true
175     reload if Thread.current[:watched_dirs].inject(false) {|z, dir| z || modified_dir(File.join(File.dirname(__FILE__), '..', dir))}
176     Thread.current[:iterations] += 1
177     sleep 1
178   end
179end
180
181t1.join
182t2.join
183## End of scripts.mit.edu autoinstaller additions
184EOF
185
186print "Your application is located in:\n";
187print "  /mit/$USER/web_scripts/$addrend/\n";
188print "To run programs like rake or script/generate, run\n";
189print "  'ssh -k $USER\@scripts' and cd to the above directory.\n\n";
190press_enter;
191
192exit 0;
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