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| author | Cody Cutrer <cody@cutrer.us> | 2016-08-31 09:28:44 -0600 |
|---|---|---|
| committer | Cody Cutrer <cody@instructure.com> | 2017-07-17 13:46:44 -0600 |
| commit | ed44b145bd6d621cd19a4a3c94eff1311e9c3755 (patch) | |
| tree | 652eb7df106e28b88f1e42863890ca085c5ed417 /railties/test/application/runner_test.rb | |
| parent | c24be369322b9e0211fcef30003375de195ef660 (diff) | |
| download | rails-ed44b145bd6d621cd19a4a3c94eff1311e9c3755.tar.gz rails-ed44b145bd6d621cd19a4a3c94eff1311e9c3755.tar.bz2 rails-ed44b145bd6d621cd19a4a3c94eff1311e9c3755.zip | |
support `-` as an argument to `rails runner`
in Rails 4.0, you could use `/dev/stdin` on both Linux and Mac, but with
the switch to Kernel.load in Rails 4.1, this broke on Linux (you get
a LoadError). Instead, explicitly detect `-` as meaning stdin, then
read from stdin explicitly, instead of performing file gymnastics. This
should now work on any platform uniformly.
Passing a script via stdin is useful when you're sshing to a server,
and the script you want to run is stored locally. You could theoretically
pass the entire script on the command line, but in reality you'll run
into problems with the command being too long.
Diffstat (limited to 'railties/test/application/runner_test.rb')
| -rw-r--r-- | railties/test/application/runner_test.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/railties/test/application/runner_test.rb b/railties/test/application/runner_test.rb index 0c45bc398a..81f717b2c3 100644 --- a/railties/test/application/runner_test.rb +++ b/railties/test/application/runner_test.rb @@ -84,6 +84,14 @@ module ApplicationTests assert_match %w( a b ).to_s, Dir.chdir(app_path) { `bin/rails runner "bin/program_name.rb" a b` } end + def test_should_run_stdin + app_file "bin/count_users.rb", <<-SCRIPT + puts User.count + SCRIPT + + assert_match "42", Dir.chdir(app_path) { `cat bin/count_users.rb | bin/rails runner -` } + end + def test_with_hook add_to_config <<-RUBY runner do |app| |