Merge branch 'levsha/-IDX-2606-Proper-tags-for-sha256sum2url-rule-' into 'master'

[IDX-2606] Proper tags for sha256sum2url rule.

This rule requires network to talk to bazel cache.
It is also better to mark it as manual so build that don't require it
will not wait for it. 

See merge request dfinity-lab/public/ic!12612

Author: marko-k0

bazel/defs.bzl

@@ -75,14 +75,35 @@ def _sha256sum2url_impl(ctx):
     )
     return [DefaultInfo(files = depset([out]), runfiles = ctx.runfiles(files = [out]))]
 
-sha256sum2url = rule(
+_sha256sum2url = rule(
     implementation = _sha256sum2url_impl,
     attrs = {
         "src": attr.label(allow_single_file = True),
         "_sha256sum2url_sh": attr.label(executable = True, cfg = "exec", default = "//bazel:sha256sum2url_sh"),
     },
 )
 
+def sha256sum2url(name, src, tags = [], **kwargs):
+    """
+    Returns cas url pointing to the artifact which checksum is returned by src.
+
+    The rule waits until the cache will return http/200 for this artifact.
+    The rule adds "requires-network" as it needs to talk to bazel cache and "manual" to only be performed
+    when its result is requested (directly or by another rule) to not wait when not required.
+
+    Args:
+        name:     the name of the rule
+        src:      the label that returns the file with sha256 checksum of requested artifact.
+        tags:     additinal tags.
+        **kwargs: the rest of arguments to be passed to the underlying rule.
+    """
+    _sha256sum2url(
+        name = name,
+        src = src,
+        tags = tags + ["requires-network", "manual"],
+        **kwargs
+    )
+
 def rust_test_suite_with_extra_srcs(name, srcs, extra_srcs, **kwargs):
     """ A rule for creating a test suite for a set of `rust_test` targets.