Ruby-on-rails 如何在 rails 中通过命令行运行 rake 任务
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How to run a rake task by command line in rails
提问by co2f2e
I have defined a rake task as follows in a file called file_locker_task.rake
我在一个名为的文件中定义了一个 rake 任务，如下所示 file_locker_task.rake
namespace :myspace do
task :process => :environment do
FileLocker.lock_files
end
end
How do I execute this rake task from the command line? I tried:
如何从命令行执行这个 rake 任务？我试过：
rake myspace:processand rake processbut both are throwing an error like this:
rake myspace:process而rake process但两者都抛出这样的错误：
rake aborted!
Don't know how to build task 'process'
回答by Dogweather
- Run
rake -T -Afrom your Rails home directory to see all the tasks that rake knows about. Yours must be in that list for rake to run it. - By default, in a Rails app, rake looks in the
lib/tasksdirectory and its subdirectories for your.rakefiles. Check that. (I suspect this is the problem.)
rake -T -A从 Rails 主目录运行以查看 rake 知道的所有任务。您的必须在该列表中，以便 rake 运行它。- 默认情况下，在 Rails 应用程序中，rake 在
lib/tasks目录及其子目录中查找您的.rake文件。检查那个。（我怀疑这就是问题所在。）
回答by hawk
According to docs
根据文档
Any ruby file (including other rakefiles) can be included with a standard Ruby
requirecommand.
任何 ruby 文件（包括其他 rakefiles）都可以包含在标准的 Ruby
require命令中。
-
——
Additional rake files (with the file extension “.rake”) may be placed in rakelib directory located at the top level of a project (i.e. the same directory that contains the main Rakefile). Also, rails projects may include additional rake files in the lib/tasks directory.
额外的 rake 文件（文件扩展名为“.rake”）可以放在位于项目顶层的 rakelib 目录中（即包含主 Rakefile 的同一目录）。此外，rails 项目可能在 lib/tasks 目录中包含额外的 rake 文件。
