最初に結論から書くと，さくらのレンタルサーバにrailsをインストールするのは難しいようだ．
数年前まではいけたっぽいけど，今は無理みたい．
学会ページ作成のために，さくらレンタルサーバにRailsを導入して，Railsの勉強をしてみる．
基本的な手順は以下の通り．
- RubyGemsをインストール
- gemを使ってrailsをインストール
ただし，レンタルサーバなのでローカルに入れなければ行けない．
とりあえず，インストール場所は
~/local/bin
~/local/lib
以下にしてみる．
というわけで，以下手順．
RubyGemsをインストール
http://rubyforge.org/frs/?group_id=126
で最新版を探してダウンロード
$ cd
$ mkdir src
$ cd src
$ wget http://rubyforge.org/frs/download.php/76073/rubygems-1.8.24.tgz
インストールする場所を作成
$ mkdir local
$ tar zxvf rubygems-1.8.24.tgz
$ ruby setup.rb --prefix=$HOME/local/
RubyGems 1.8.24 installed
== 1.8.24 / 2012-04-27
* 1 bug fix:
* Install the .pem files properly. Fixes #320
* Remove OpenSSL dependency from the http code path
------------------------------------------------------------------------------
RubyGems installed the following executables:
/home/name/local/bin/gem18
$ cd
$ emacs .cshrc
...
set path = (/sbin /bin /usr/sbin /usr/bin /usr/local/sbin /usr/local/bin $HOME/\
bin $HOME/local/bin)
setenv RUBYLIB $HOME/local/lib
setenv GEM_HOME $HOME/local/lib/ruby/gem
$ sources .cshrc
$ gem --version
1.8.24
Railsをインストール
$ gem18 install rails --include-dependencies
chown/chgrp: Operation not permitted
エラーだ．
解決策はこちら
http://playet.jugem.jp/?eid=56
$ setenv RB_USER_INSTALL true
$ gem18 install rails --include-dependencies
成功したように見えるのに，なぜかrailsが入っていない．
おや？
Pathに
$HOME/local/lib/ruby/gem/bin
が必要だった．
.cshrcに追加
...
set path = (/sbin /bin /usr/sbin /usr/bin /usr/local/sbin /usr/local/bin $HOME/bin $HOME/local/bin $HOME/local/lib/ruby/gem/bin)
$ source .cshrc
$ rails -v
Rails 3.2.6
お～．できたできた．
それじゃ，早速アプリケーションを作成してみましょうかね．
$ cd
$mkdir Rails
$ rails new HelloWolrd
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby18 extconf.rb
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby18
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
Gem files will remain installed in /home/name/local/lib/ruby/gem/gems/sqlite3-1.3.6 for inspection.
Results logged to /home/name/local/lib/ruby/gem/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out
An error occured while installing sqlite3 (1.3.6), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling.
おや？
続けていくと，次々怒られるので，順番にgemでインストールしていって見る．
$ gem18 install coffee-script
$ gem18 install coffee-rails
$ gem18 install sass
$ gem18 install sass-rails
$ gem18 install sqlite3
ここまで順調だったが，ここで問題発生．
Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling.
だけど，さくらに入っているのはsqlite3 ver 3.7.9 20
とりあえず古いバージョンをインストールしてみる．
$ gem install sqlite3-ruby --version=1.2.4
$ rails new HelloWorld
...
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby18 extconf.rb
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby18
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
Gem files will remain installed in /home/name/local/lib/ruby/gem/gems/sqlite3-1.3.6 for inspection.
Results logged to /home/name/local/lib/ruby/gem/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out
An error occured while installing sqlite3 (1.3.6), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling.
調べてみると，結構インストールのやり方が出てくるけど，皆情報が古い．
ここ1年で検索してみると，
http://okwave.jp/qa/q5323794.html
http://d.hatena.ne.jp/ar_tama/20120212/1329027876
を見る限り無理っぽい
なんてこったい．
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