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Clarify context of find_in_parent_folders #1623

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Mar 31, 2021
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Clarify context of find_in_parent_folders #1623

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19 changes: 19 additions & 0 deletions docs/_docs/04_reference/built-in-functions.md
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Expand Up @@ -116,6 +116,25 @@ include {
}
```

Note that this function searches relative to the child `terragrunt.hcl` file when called from a parent config. For
example, if you had the following folder structure:

├── terragrunt.hcl
└── prod
├── env.hcl
└── mysql
└── terragrunt.hcl

And the root `terragrunt.hcl` contained the following:

locals {
env_vars = read_terragrunt_config(find_in_parent_folders("env.hcl"))
}

The `find_in_parent_folders` will search from the __child `terragrunt.hcl`__ (`prod/mysql/terragrunt.hcl`) config,
finding the `env.hcl` file in the `prod` directory.


## path\_relative\_to\_include

`path_relative_to_include()` returns the relative path between the current `terragrunt.hcl` file and the `path` specified in its `include` block. For example, consider the following folder structure:
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