Move build.sh to bin/build

Using bin/ for internal utils is the default for both Rails and Bundler.
The script has now no extension and is marked as executable improving its
usability (the user doesn't need to know how to deal with each extension) and
maintainability (it's easy to switch to a ruby script just changing the
shebang line).

The doc is updated and env variables are passed with `env` making life easier
for some non-bash shells such as fish-shell.

.gitignore

@@ -7,7 +7,6 @@
 .loadpath
 .project
 .ruby-version
-bin/*
 doc
 Gemfile.lock
 Gemfile-custom

CONTRIBUTING.md

@@ -29,7 +29,7 @@ Here's a quick guide:
 2. Run the tests. We only take pull requests with passing tests, and it's great
 to know that you have a clean slate:
 
-        $ bash build.sh
+        $ bin/build
 
 3. Create new branch then make changes and add tests for your changes. Only
 refactoring and documentation changes require no new tests. If you are adding

README.md

@@ -211,16 +211,16 @@ You can see the build statuses at
 [ChromeDriver](https://sites.google.com/a/chromium.org/chromedriver/home) is
 required to run the frontend and backend test suites.
 
-To execute all of the test specs, run the `build.sh` script at the root of the Solidus project:
+To execute all of the test specs, run the `bin/build` script at the root of the Solidus project:
 
 ```bash
-bash build.sh
+bin/build
 ```
 
-The `build.sh` script runs using PostgreSQL by default, but it can be overridden by setting the DB environment variable to `DB=sqlite` or `DB=mysql`. For example:
+The `bin/build` script runs using PostgreSQL by default, but it can be overridden by setting the DB environment variable to `DB=sqlite` or `DB=mysql`. For example:
 
 ```bash
-DB=mysql bash build.sh
+env DB=mysql bin/build
 ```
 
 #### Run an individual test suite
@@ -236,7 +236,7 @@ By default, `rspec` runs the tests for SQLite 3. If you would like to run specs
 against another database you may specify the database in the command:
 
 ```bash
-DB=postgresql bundle exec rspec
+env DB=postgresql bundle exec rspec
 ```
 
 #### Code coverage reports

build.sh → bin/build

@@ -1,8 +1,8 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -e
 
-# Target postgresql. Override with: `DB=sqlite bash build.sh`
+# Target postgresql. Override with: `env DB=sqlite bin/build`
 export DB=${DB:-postgresql}
 
 # Solidus defaults

guides/source/developers/getting-started/develop-solidus.html.md

@@ -34,7 +34,7 @@ You can prepend `DB=mysql` or `DB=postgresql` to the command in order use those
 databases instead of the default SQLite 3 database. For example:
 
 ```bash
-DB=postgresql bundle exec rake sandbox
+env DB=postgresql bundle exec rake sandbox
 ```
 
 After the sandbox has been generated, you can change into its directory and
@@ -68,19 +68,19 @@ You can see the build statuses [on our CircleCI status page][circleci].
 
 ### Run all Solidus test suites
 
-To execute all of the test specs, run the `build.sh` script at the root of the
+To execute all of the test specs, run the `bin/build` script at the root of the
 Solidus project:
 
 ```bash
-bash build.sh
+bin/build
 ```
 
-The `build.sh` script runs using PostgreSQL by default, but it can be overridden
+The `bin/build` script runs using PostgreSQL by default, but it can be overridden
 by setting the `DB` environment variable to `DB=sqlite` or `DB=mysql`. For
 example:
 
 ```bash
-DB=mysql bash build.sh
+env DB=mysql bin/build
 ```
 
 Note that this will fail if you have not installed ChromeDriver on your system.
@@ -99,7 +99,7 @@ By default, the tests run against the default SQLite 3 database. You can instead
 specify `DB=mysql` or `DB=postgresql` by prepending it to the command:
 
 ```bash
-DB=postgresql bundle exec rspec
+env DB=postgresql bundle exec rspec
 ```
 
 ### Generate a code coverage report
@@ -108,7 +108,7 @@ You can generate a [SimpleCov][simplecov] code
 coverage report by prepending `COVERAGE=true` to the `rspec` command:
 
 ```bash
-COVERAGE=true bundle exec rspec
+env COVERAGE=true bundle exec rspec
 ```
 
 [simplecov]: https://github.com/colszowka/simplecov