Sqlite3 reference deploying simple heroku Rails application

问题

I've got a problem deploying a very simple example rails app on Heroku. This app uses a db.

In local (OSX) with sqlite3 there is no problem, but I can't push to Heroku because some lost reference to sqlite3.

I've put on Gemfile the distinction between test, development and production environments:

#gem 'sqlite3'
group :development, :test do
    gem 'sqlite3'
end
group :production do
   gem 'pg'
end

and bundle withou problem:

bundle install --without production

But when i deploy to Heroku:

git push heroku master

I've got some reference to sqlite3 and get an error.

I've tryed with postgresql installed on my OSX, and bundle with only "gem 'pg'" on Gemfile, but i've got also the reference to sqlite3

What should I do? I need some extra config on Heroku to use a postgre db?

This is the common error I obtain when git push to heroku master:

    git push heroku master
Counting objects: 87, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (76/76), done.
Writing objects: 100% (87/87), 30.32 KiB, done.
Total 87 (delta 2), reused 0 (delta 0)

-----> Heroku receiving push
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.2.1
       Running: bundle install --without development:test --path vendor/bundle --binstubs bin/ --deployment
       Fetching gem metadata from https://rubygems.org/.........
       Fetching gem metadata from https://rubygems.org/..
       Installing rake (0.9.2.2)
       Installing i18n (0.6.1)
       Installing multi_json (1.3.7)
       Installing activesupport (3.2.8)
       Installing builder (3.0.4)
       Installing activemodel (3.2.8)
       Installing erubis (2.7.0)
       Installing journey (1.0.4)
       Installing rack (1.4.1)
       Installing rack-cache (1.2)
       Installing rack-test (0.6.2)
       Installing hike (1.2.1)
       Installing tilt (1.3.3)
       Installing sprockets (2.1.3)
       Installing actionpack (3.2.8)
       Installing mime-types (1.19)
       Installing polyglot (0.3.3)
       Installing treetop (1.4.12)
       Installing mail (2.4.4)
       Installing actionmailer (3.2.8)
       Installing arel (3.0.2)
       Installing tzinfo (0.3.35)
       Installing activerecord (3.2.8)
       Installing activeresource (3.2.8)
       Installing coffee-script-source (1.4.0)
       Installing execjs (1.4.0)
       Installing coffee-script (2.2.0)
       Installing rack-ssl (1.3.2)
       Installing json (1.7.5) with native extensions
       Installing rdoc (3.12)
       Installing thor (0.16.0)
       Installing railties (3.2.8)
       Installing coffee-rails (3.2.2)
       Installing jquery-rails (2.1.3)
       Using bundler (1.2.1)
       Installing rails (3.2.8)
       Installing sass (3.2.2)
       Installing sass-rails (3.2.5)
       Installing sqlite3 (1.3.6) with native extensions
       Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
       /usr/local/bin/ruby 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/ruby
       --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 /tmp/build_28i7zx40b8bao/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6 for inspection.
       Results logged to /tmp/build_28i7zx40b8bao/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out
       An error occurred while installing sqlite3 (1.3.6), and Bundler cannot continue.
       Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling.
 !
 !     Failed to install gems via Bundler.
 !     
 !     Detected sqlite3 gem which is not supported on Heroku.
 !     http://devcenter.heroku.com/articles/how-do-i-use-sqlite3-for-development
 !
 !     Heroku push rejected, failed to compile Ruby/rails app

To git@heroku.com:pure-reaches-4621.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git@heroku.com:pure-reaches-4621.git'

回答1:

I've resolved the problem. It was a bad use of git.

I needed to update the changes in Gemfile and Gemfile.lock:

First compile:

$ bundle

then:

$ git add Gemfile
$ git add Gemfile.lock

$ git commit -m 'Added pg adapter gem'
$ git push heroku master

Now Heroku updates OK

And now run the postgresql database:

$ heroku run rake db:migrate

Bye!

来源：https://stackoverflow.com/questions/13323887/sqlite3-reference-deploying-simple-heroku-rails-application

标签

ruby-on-rails-3

postgresql

heroku

sqlite