blob: e5e5975ec747382cbb6ceb75d6ea2c06d17a7184 [file] [log] [blame] [edit]
# Copyright 2016 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Quick and not really nice docker_push rules based on the docker daemon."""
def _get_runfile_path(ctx, f):
"""Return the runfiles relative path of f."""
if ctx.workspace_name:
return ctx.workspace_name + "/" + f.short_path
else:
return f.short_path
def _reverse(lst):
result = []
for el in lst:
result = [el] + result
return result
def _generate_load_statement(ctx, tag, file):
return ("echo 'Image %s'\n" % tag) + "\n".join([
"incr_load '%s' '%s'" % (_get_runfile_path(ctx, l["name"]),
_get_runfile_path(ctx, l["layer"]))
for l in _reverse(file.docker_layers)
]) + ("\ntag_last_load '%s'" % tag)
# TODO(dmarting): replace with proper docker_push using the docker library.
def _impl(ctx):
files = dict()
for i in range(len(ctx.attr.image_tags)):
tag = ctx.attr.image_tags[i]
file = ctx.attr.images[i]
files[tag] = file
ctx.template_action(
template = ctx.file._template,
substitutions = {
"%{load_statements}": "\n\n".join(
[_generate_load_statement(ctx, tag, files[tag]) for tag in ctx.attr.image_tags]),
"%{repository}": ctx.attr.repository,
"%{tags}": " ".join(ctx.attr.image_tags)
},
output = ctx.outputs.executable,
executable = True,
)
runfiles = []
for s in ctx.attr.images:
for l in s.docker_layers:
runfiles.append(l["layer"])
runfiles.append(l["name"])
return struct(runfiles = ctx.runfiles(files = runfiles))
_docker_push = rule(
implementation = _impl,
attrs = {
"repository": attr.string(mandatory=True),
"_template": attr.label(
default=Label("//gcr:docker_push_template.sh.tpl"),
single_file=True,
allow_files=True),
"image_tags": attr.string_list(),
"images": attr.label_list(providers=["docker_layers"]),
},
executable = True,
)
def docker_push(images, **kwargs):
_docker_push(
images = [k for k in images],
image_tags = [images[k] for k in images],
**kwargs
)