cache repository rules - Bazel

The following functions can be loaded from @bazel_tools//tools/build_defs/repo:cache.bzl.

Returns the default canonical id to use for downloads.

get_default_canonical_id

<pre> get_default_canonical_id(<a href="#get_default_canonical_id-repository_ctx">repository_ctx</a>, <a href="#get_default_canonical_id-urls">urls</a>) </pre>

Returns the default canonical id to use for downloads.

Returns "" (empty string) when Bazel is run with --repo_env=BAZEL_HTTP_RULES_URLS_AS_DEFAULT_CANONICAL_ID=0.

e.g.

python

load("@bazel_tools//tools/build_defs/repo:cache.bzl", "get_default_canonical_id")
# ...
    repository_ctx.download_and_extract(
        url = urls,
        integrity = integrity
        canonical_id = get_default_canonical_id(repository_ctx, urls),
    ),

Parameters

<table class="params-table"> <colgroup> <col class="col-param" /> <col class="col-description" /> </colgroup> <tbody> <tr id="get_default_canonical_id-repository_ctx"> <td><code>repository_ctx</code></td> <td>

required.

<p>

The repository context of the repository rule calling this utility function.

</p> </td> </tr> <tr id="get_default_canonical_id-urls"> <td><code>urls</code></td> <td>

required.

<p>

A list of URLs matching what is passed to repository_ctx.download and repository_ctx.download_and_extract.

</p> </td> </tr> </tbody> </table>