Public API
## relative_file
relative_file(to_file, frm_file)
Resolves a relative path between two files, "to_file" and "frm_file".
If neither of the paths begin with ../ it is assumed that they share the same root. When finding the relative path,
the incoming files are treated as actual files (not folders) so the resulting relative path may differ when compared
to passing the same arguments to python's "os.path.relpath()" or NodeJs's "path.relative()".
For example, 'relative_file("../foo/foo.txt", "bar/bar.txt")' will return '../../foo/foo.txt'
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| to_file | the path with file name to resolve to, from frm | none |
| frm_file | the path with file name to resolve from | none |
**RETURNS**
The relative path from frm_file to to_file, including the file name
## to_manifest_path
to_manifest_path(ctx, file)
The rlocation path for a `File`
The path a built binary can pass to the `Rlocation` function of a runfiles library to find a
dependency at runtime, either in the runfiles directory (if available) or using the runfiles
manifest.
This is similar to root path (a.k.a. [short_path](https://bazel.build/rules/lib/File#short_path))
in that it does not contain configuration prefixes, but differs in that it always starts with the
name of the repository.
The rlocation path of a `File` in an external repository repo will start with `repo/`, followed by the
repository-relative path.
Passing this path to a binary and resolving it to a file system path using the runfiles libraries
is the preferred approach to find dependencies at runtime. Compared to root path, it has the
advantage that it works on all platforms and even if the runfiles directory is not available.
Based on the $(rlocation) predefined source/output path variable:
https://bazel.build/reference/be/make-variables#predefined_genrule_variables.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| ctx | starlark rule execution context | none |
| file | a File object | none |
**RETURNS**
The rlocation path for the `File`
## to_output_relative_path
to_output_relative_path(file)
The relative path from bazel-out/[arch]/bin to the given File object
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| file | a File object | none |
**RETURNS**
The output relative path for the `File`
## to_repository_relative_path
to_repository_relative_path(file)
The repository relative path for a `File`
This is the full runfiles path of a `File` excluding its workspace name.
This differs from root path (a.k.a. [short_path](https://bazel.build/rules/lib/File#short_path)) and
rlocation path as it does not include the repository name if the `File` is from an external repository.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| file | a File object | none |
**RETURNS**
The repository relative path for the `File`
## to_rlocation_path
to_rlocation_path(ctx, file)
The rlocation path for a `File`
The path a built binary can pass to the `Rlocation` function of a runfiles library to find a
dependency at runtime, either in the runfiles directory (if available) or using the runfiles
manifest.
This is similar to root path (a.k.a. [short_path](https://bazel.build/rules/lib/File#short_path))
in that it does not contain configuration prefixes, but differs in that it always starts with the
name of the repository.
The rlocation path of a `File` in an external repository repo will start with `repo/`, followed by the
repository-relative path.
Passing this path to a binary and resolving it to a file system path using the runfiles libraries
is the preferred approach to find dependencies at runtime. Compared to root path, it has the
advantage that it works on all platforms and even if the runfiles directory is not available.
Based on the $(rlocation) predefined source/output path variable:
https://bazel.build/reference/be/make-variables#predefined_genrule_variables.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| ctx | starlark rule execution context | none |
| file | a File object | none |
**RETURNS**
The rlocation path for the `File`
## to_workspace_path
to_workspace_path(file)
The repository relative path for a `File`
This is the full runfiles path of a `File` excluding its workspace name.
This differs from root path (a.k.a. [short_path](https://bazel.build/rules/lib/File#short_path)) and
rlocation path as it does not include the repository name if the `File` is from an external repository.
**PARAMETERS**
| Name | Description | Default Value |
| :------------- | :------------- | :------------- |
| file | a File object | none |
**RETURNS**
The repository relative path for the `File`