1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
#!/bin/bash
#
# Copyright 2015 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.
#
# Test handling of Skylark loads from and in external repositories.
#
# Load test environment
source $(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/test-setup.sh \
|| { echo "test-setup.sh not found!" >&2; exit 1; }
# The following tests build an instance of a Skylark macro loaded from a
# local_repository, which in turns loads another Skylark file either from
# the external repo or the default repo, depending on the test parameters.
# The tests cover all the valid syntactic variants of the second load. The
# package structure used for the tests is as follows:
#
# ${WORKSPACE_DIR}/
# WORKSPACE
# local_pkg/
# BUILD
# another_local_pkg/
# BUILD
# local_constants.bzl
# ${external_repo}/
# external_pkg/
# BUILD
# macro_def.bzl
# external_constants.bzl
function run_external_skylark_load_test() {
load_target_to_test=$1
expected_test_output=$2
create_new_workspace
external_repo=${new_workspace_dir}
cat > ${WORKSPACE_DIR}/WORKSPACE <<EOF
local_repository(name = "external_repo", path = "${external_repo}")
EOF
mkdir ${WORKSPACE_DIR}/local_pkg
cat > ${WORKSPACE_DIR}/local_pkg/BUILD <<EOF
load("@external_repo//external_pkg:macro_def.bzl", "macro")
macro(name="macro_instance")
EOF
mkdir ${WORKSPACE_DIR}/another_local_pkg
touch ${WORKSPACE_DIR}/another_local_pkg/BUILD
cat > ${WORKSPACE_DIR}/another_local_pkg/local_constants.bzl <<EOF
OUTPUT_STRING = "LOCAL!"
EOF
mkdir ${external_repo}/external_pkg
touch ${external_repo}/external_pkg/BUILD
cat > ${external_repo}/external_pkg/macro_def.bzl <<EOF
load("${load_target_to_test}", "OUTPUT_STRING")
def macro(name):
native.genrule(
name = name,
outs = [name + ".txt"],
cmd = "echo " + OUTPUT_STRING + " > \$@",
)
EOF
cat > ${external_repo}/external_pkg/external_constants.bzl <<EOF
OUTPUT_STRING = "EXTERNAL!"
EOF
cd ${WORKSPACE_DIR}
bazel build local_pkg:macro_instance >& $TEST_log || \
fail "Expected build to succeed"
assert_contains "${expected_test_output}" \
bazel-genfiles/local_pkg/macro_instance.txt
}
# A label with an explicit external repo reference should be resolved relative
# to the external repo.
function test_load_skylark_from_external_repo_with_pkg_relative_label_load() {
run_external_skylark_load_test \
"@external_repo//external_pkg:external_constants.bzl" "EXTERNAL!"
}
# A relative label should be resolved relative to the external package.
function test_load_skylark_from_external_repo_with_pkg_relative_label_load() {
run_external_skylark_load_test ":external_constants.bzl" "EXTERNAL!"
}
# A relative path should be resolved relative to the current (external)
# directory.
function test_load_skylark_from_external_repo_with_pkg_relative_path_load() {
run_external_skylark_load_test "external_constants" "EXTERNAL!"
}
# An absolute label with no repo prefix should be resolved relative to the
# current (external) repo.
function test_load_skylark_from_external_repo_with_pkg_relative_path_load() {
run_external_skylark_load_test "//external_pkg:external_constants.bzl" \
"EXTERNAL!"
}
# An absolute label with the special "@" prefix should cause be resolved
# relative to the default repo.
function test_load_skylark_from_external_repo_with_repo_relative_label_load() {
run_external_skylark_load_test "@//another_local_pkg:local_constants.bzl" \
"LOCAL!"
}
# An absolute path should always be resolved in the default repo.
function test_load_skylark_from_external_repo_with_repo_relative_label_load() {
run_external_skylark_load_test "/another_local_pkg/local_constants" \
"LOCAL!"
}
run_suite "Test Skylark loads from/in external repositories"
|
