Copies files and directories to an output directory.
Files and directories can be arranged as needed in the output directory using
the root_paths
, include_srcs_patters
, exclude_srcs_patters
and replace_prefixes
attributes.
Rules
copy_to_directory
Example usage (generated)
load("@aspect_bazel_lib//lib:copy_to_directory.bzl", "copy_to_directory")
copy_to_directory(
# A unique name for this target.
name = "",
)
name
A unique name for this target.
allow_overwrites
If True, allow files to be overwritten if the same output file is copied to twice.
If set, then the order of srcs matters as the last copy of a particular file will win.
This setting has no effect on Windows where overwrites are always allowed.
exclude_prefixes
List of path prefixes (with glob support) to exclude from output directory.
DEPRECATED: use `exclude_srcs_patterns` instead
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files and directories in srcs are not copied to the output directory if their output
directory path, after applying `root_paths`, starts with or fully matches one of the
patterns specified.
Patterns do not look into files within source directory or generated directory (TreeArtifact)
targets since matches are performed in Starlark. To use `include_srcs_patterns` on files
within directories you can use the `make_directory_paths` helper to specify individual files inside
directories in `srcs`. This restriction may be fixed in a future release by performing matching
inside the copy action instead of in Starlark.
Forward slashes (`/`) should be used as path separators.
Files and directories that do not have matching output directory paths are subject to subsequent
filters and transformations to determine if they are copied and what their path in the output
directory will be.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
exclude_srcs_packages
List of Bazel packages (with glob support) to exclude from output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files and directories in srcs are not copied to the output directory if
the Bazel package of the file or directory matches one of the patterns specified.
Forward slashes (`/`) should be used as path separators.
A `"."` value means exclude srcs that are in the target's package.
It expands to the target's package path (`ctx.label.package`). This
will be an empty string `""` if the target is in the root package.
A `"./**"` value means exclude srcs that are in subpackages of the target's package.
It expands to the target's package path followed by a slash and a
globstar (`"{}/**".format(ctx.label.package)`). If the target's package is
the root package, `"./**"` expands to `["?*", "?*/**"]` instead.
Files and directories that have do not have matching Bazel packages are subject to subsequent
filters and transformations to determine if they are copied and what their path in the output
directory will be.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
exclude_srcs_patterns
List of paths (with glob support) to exclude from output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files and directories in srcs are not copied to the output directory if their output
directory path, after applying `root_paths`, matches one of the patterns specified.
Patterns do not look into files within source directory or generated directory (TreeArtifact)
targets since matches are performed in Starlark. To use `include_srcs_patterns` on files
within directories you can use the `make_directory_paths` helper to specify individual files inside
directories in `srcs`. This restriction may be fixed in a future release by performing matching
inside the copy action instead of in Starlark.
Forward slashes (`/`) should be used as path separators.
Files and directories that do not have matching output directory paths are subject to subsequent
filters and transformations to determine if they are copied and what their path in the output
directory will be.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
include_external_repositories
List of external repository names (with glob support) to include in the output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files from external repositories are only copied into the output directory if
the external repository they come from matches one of the external repository patterns
specified.
When copied from an external repository, the file path in the output directory
defaults to the file's path within the external repository. The external repository
name is _not_ included in that path.
For example, the following copies `@external_repo//path/to:file` to
`path/to/file` within the output directory.
```
copy_to_directory(
name = "dir",
include_external_repositories = ["external_*"],
srcs = ["@external_repo//path/to:file"],
)
```
Files and directories that come from matching external are subject to subsequent filters and
transformations to determine if they are copied and what their path in the output
directory will be. The external repository name of the file or directory from an external
repository is not included in the output directory path and is considered in subsequent
filters and transformations.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
include_srcs_packages
List of Bazel packages (with glob support) to include in output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files and directories in srcs are only copied to the output directory if
the Bazel package of the file or directory matches one of the patterns specified.
Forward slashes (`/`) should be used as path separators.
A `"."` value means include srcs that are in the target's package.
It expands to the target's package path (`ctx.label.package`). This
will be an empty string `""` if the target is in the root package.
A `"./**"` value means include srcs that are in subpackages of the target's package.
It expands to the target's package path followed by a slash and a
globstar (`"{}/**".format(ctx.label.package)`). If the target's package is
the root package, `"./**"` expands to `["?*", "?*/**"]` instead.
Defaults to `["**"]` which includes sources from all packages.
Files and directories that have matching Bazel packages are subject to subsequent filters and
transformations to determine if they are copied and what their path in the output
directory will be.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
include_srcs_patterns
List of paths (with glob support) to include in output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
Files and directories in srcs are only copied to the output directory if their output
directory path, after applying `root_paths`, matches one of the patterns specified.
Patterns do not look into files within source directory or generated directory (TreeArtifact)
targets since matches are performed in Starlark. To use `include_srcs_patterns` on files
within directories you can use the `make_directory_paths` helper to specify individual files inside
directories in `srcs`. This restriction may be fixed in a future release by performing matching
inside the copy action instead of in Starlark.
Forward slashes (`/`) should be used as path separators.
Defaults to ["**"] which includes all sources.
Files and directories that have matching output directory paths are subject to subsequent
filters and transformations to determine if they are copied and what their path in the output
directory will be.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
out
Path of the output directory, relative to this package.
If not set, the name of the target is used.
replace_prefixes
Map of paths prefixes (with glob support) to replace in the output directory path when copying files.
Glob patterns `**`, `*` and `?` are supported but the pattern must not end with a `**` glob
expression. See `glob_match` documentation for more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
If the output directory path for a file or directory starts with or fully matches a
a key in the dict then the matching portion of the output directory path is
replaced with the dict value for that key. The final path segment
matched can be a partial match of that segment and only the matching portion will
be replaced. If there are multiple keys that match, the longest match wins.
Patterns do not look into files within source directory or generated directory (TreeArtifact)
targets since matches are performed in Starlark. To use `replace_prefixes` on files
within directories you can use the `make_directory_paths` helper to specify individual files inside
directories in `srcs`. This restriction may be fixed in a future release by performing matching
inside the copy action instead of in Starlark.
Forward slashes (`/`) should be used as path separators.
Replace prefix transformation are the final step in the list of filters and transformations.
The final output path of a file or directory being copied into the output directory
is determined at this step.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
root_paths
List of paths (with glob support) that are roots in the output directory.
Glob patterns `**`, `*` and `?` are supported. See `glob_match` documentation for
more details on how to use glob patterns:
https://github.com/aspect-build/bazel-lib/blob/main/docs/glob_match.md.
If any parent directory of a file or directory being copied matches one of the root paths
patterns specified, the output directory path will be the path relative to the root path
instead of the path relative to the file's or directory's workspace. If there are multiple
root paths that match, the longest match wins.
Matching is done on the parent directory of the output file path so a trailing '**' glob patterm
will match only up to the last path segment of the dirname and will not include the basename.
Only complete path segments are matched. Partial matches on the last segment of the root path
are ignored.
Forward slashes (`/`) should be used as path separators.
A "." value expands to the target's package path (`ctx.label.package`).
Defaults to ["."] which results in the output directory path of files in the
target's package and and sub-packages are relative to the target's package and
files outside of that retain their full workspace relative paths.
Filters and transformations are applied in the following order:
include_external_repositories
include_srcs_packages
exclude_srcs_packages
root_paths
include_srcs_patterns
exclude_srcs_patterns
replace_prefixes
For more information each filters / transformations applied, see the documentation for the specific filter / transformation attribute.
srcs
Files and/or directories or targets that provide DirectoryPathInfo to copy into the output directory.
Macros and Functions
copy_to_directory_action
Helper function to copy files to a directory.
This helper is used by copy_to_directory. It is exposed as a public API so it can be used within other rule implementations where additional_files can also be passed in.
Example usage (generated)
load("@aspect_bazel_lib//lib:copy_to_directory.bzl", "copy_to_directory_action")
copy_to_directory_action(
# The rule context.
ctx = None,
# Files and/or directories or targets that provide DirectoryPathInfo to copy into the output directory.
srcs = [],
# The directory to copy to
dst = None,
)
ctx
The rule context.
srcs
Files and/or directories or targets that provide DirectoryPathInfo to copy into the output directory.
dst
The directory to copy to. Must be a TreeArtifact.
additional_files
List or depset of additional files to copy that are not in the DefaultInfo or DirectoryPathInfo of srcs
root_paths
List of paths that are roots in the output directory.
See copy_to_directory rule documentation for more details.
include_external_repositories
List of external repository names to include in the output directory.
See copy_to_directory rule documentation for more details.
include_srcs_packages
List of Bazel packages to include in output directory.
See copy_to_directory rule documentation for more details.
exclude_srcs_packages
List of Bazel packages (with glob support) to exclude from output directory.
See copy_to_directory rule documentation for more details.
include_srcs_patterns
List of paths (with glob support) to include in output directory.
See copy_to_directory rule documentation for more details.
exclude_srcs_patterns
List of paths (with glob support) to exclude from output directory.
See copy_to_directory rule documentation for more details.
exclude_prefixes
List of path prefixes to exclude from output directory.
replace_prefixes
Map of paths prefixes to replace in the output directory path when copying files.
See copy_to_directory rule documentation for more details.
allow_overwrites
If True, allow files to be overwritten if the same output file is copied to twice.
See copy_to_directory rule documentation for more details.
is_windows
Deprecated and unused
copy_to_directory_lib.impl
Example usage (generated)
load("@aspect_bazel_lib//lib:copy_to_directory.bzl", "copy_to_directory_lib")
copy_to_directory_lib.impl(
ctx = None,
)