8000 New dsl method: lazy(&block) by lionelperrin · Pull Request #339 · ruby/rake · GitHub
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New dsl method: lazy(&block) #339

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lionelperrin
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Make possible to lazy define tasks in a namespace. The tasks are
loaded only on lookup.

Lazy definitions can be executed on purpose when using the option
--load-lazy-definitions so that rake --tasks --load-lazy-definitions
list all tasks including the one defined in a lazy way.

Example of lazy definitions:

namespace 'a' do
  lazy { task 't' }
end

or

namespace 'a' do
  la
8000
zy { load 'namespace_a.rake' }
end

@lionelperrin lionelperrin mentioned this pull request Feb 18, 2020
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@lionelperrin lionelperrin force-pushed the master branch 2 times, most recently from 1969c9b to 2458477 Compare February 18, 2020 09:32
@TSMMark
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TSMMark commented Jun 9, 2020

This is awesome! I am in need of something like this, and would love to see this merged and released if possible.

@TSMMark
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TSMMark commented May 5, 2023

I'm surprised this doesn't have more traction... Everyone enjoys longer load times because they're loading extra code they don't need all the time I suppose?

Any words from maintainers what it would take to get this merged? Thanks!

@lionelperrin @hsbt
New dsl method: lazy(&block)
9226e16 
Make possible to lazy define tasks in a namespace. The tasks are
loaded only on lookup.

Lazy definitions can be executed on purpose when using the option
--load-lazy-definitions so that `rake --tasks --load-lazy-definitions`
list all tasks including the one defined in a lazy way.

Example of lazy definitions:
```
namespace 'a' do
  lazy { task 't' }
end
```
or
```
namespace 'a' do
  lazy { load 'namespace_a.rake' }
end
```
@lionelperrin @hsbt
lazy task definition: take codeclimate into account
b7f3a6d
@gillisd
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gillisd commented May 29, 2025

Just discovered this PR, thank you for your hard work @lionelperrin! I too would love to see this merged, is there anything preventing it from doing so?

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3 participants
@lionelperrin @TSMMark @gillisd
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