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#!/bin/bash
#
# Copyright 2019 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.
# --- begin runfiles.bash initialization ---
# Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash).
set -euo pipefail
if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
if [[ -f "$0.runfiles_manifest" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest"
elif [[ -f "$0.runfiles/MANIFEST" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST"
elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
export RUNFILES_DIR="$0.runfiles"
fi
fi
if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash"
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \
"$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
else
echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash"
exit 1
fi
# --- end runfiles.bash initialization ---
source "$(rlocation "io_bazel/src/test/shell/integration_test_setup.sh")" \
|| { echo "integration_test_setup.sh not found!" >&2; exit 1; }
# `uname` returns the current platform, e.g "MSYS_NT-10.0" or "Linux".
# `tr` converts all upper case letters to lower case.
# `case` matches the result if the `uname | tr` expression to string prefixes
# that use the same wildcards as names do in Bash, i.e. "msys*" matches strings
# starting with "msys", and "*" matches everything (it's the default case).
case "$(uname -s | tr [:upper:] [:lower:])" in
msys*)
# As of 2019-04-08, Bazel on Windows only supports MSYS Bash.
declare -r is_windows=true
;;
*)
declare -r is_windows=false
;;
esac
if "$is_windows"; then
# Disable MSYS path conversion that converts path-looking command arguments to
# Windows paths (even if they arguments are not in fact paths).
export MSYS_NO_PATHCONV=1
export MSYS2_ARG_CONV_EXCL="*"
declare -r EXE_EXT=".exe"
else
declare -r EXE_EXT=""
fi
# ----------------------------------------------------------------------
# HELPER FUNCTIONS
# ----------------------------------------------------------------------
# Writes a python file that prints all arguments (except argv[0]).
#
# Args:
# $1: directory (workspace and package path) where the file will be written
function create_py_file_that_prints_args() {
local -r ws="$1"; shift
mkdir -p "$ws" || fail "mkdir -p $ws"
cat >"$ws/a.py" <<'eof'
from __future__ import print_function
import sys
for i in range(1, len(sys.argv)):
print("arg%d=(%s)" % (i, sys.argv[i]))
eof
}
# Writes a BUILD file for a py_binary with an untokenizable "args" entry.
#
# Args:
# $1: directory (workspace and package path) where the file will be written
function create_build_file_for_untokenizable_args() {
local -r ws="$1"; shift
mkdir -p "$ws" || fail "mkdir -p $ws"
cat >"$ws/BUILD" <<'eof'
py_binary(
name = "cannot_tokenize",
srcs = ["a.py"],
main = "a.py",
args = ["'abc"],
)
eof
}
# Writes a BUILD file for a py_binary with many different "args" entries.
#
# Use this together with assert_*_output_of_the_program_with_many_args().
#
# Args:
# $1: directory (package path) where the file will be written
function create_build_file_with_many_args() {
local -r ws="$1"; shift
mkdir -p "$ws" || fail "mkdir -p $ws"
cat >"$ws/BUILD" <<'eof'
py_binary(
name = "x",
srcs = ["a.py"],
main = "a.py",
args = [
"''",
"' '",
"'\"'",
"'\"\\'",
"'\\'",
"'\\\"'",
"'with space'",
"'with^caret'",
"'space ^caret'",
"'caret^ space'",
"'with\"quote'",
"'with\\backslash'",
"'one\\ backslash and \\space'",
"'two\\\\backslashes'",
"'two\\\\ backslashes \\\\and space'",
"'one\\\"x'",
"'two\\\\\"x'",
"'a \\ b'",
"'a \\\" b'",
"'A'",
"'\"a\"'",
"'B C'",
"'\"b c\"'",
"'D\"E'",
"'\"d\"e\"'",
"'C:\\F G'",
"'\"C:\\f g\"'",
"'C:\\H\"I'",
"'\"C:\\h\"i\"'",
"'C:\\J\\\"K'",
"'\"C:\\j\\\"k\"'",
"'C:\\L M '",
"'\"C:\\l m \"'",
"'C:\\N O\\'",
"'\"C:\\n o\\\"'",
"'C:\\P Q\\ '",
"'\"C:\\p q\\ \"'",
"'C:\\R\\S\\'",
"'C:\\R x\\S\\'",
"'\"C:\\r\\s\\\"'",
"'\"C:\\r x\\s\\\"'",
"'C:\\T U\\W\\'",
"'\"C:\\t u\\w\\\"'",
"a",
r"b\\\"",
"c",
],
)
eof
}
# Asserts that the $TEST_log contains all py_binary args as argN=(VALUE).
#
# See create_build_file_with_many_args() and create_py_file_that_prints_args().
function assert_good_output_of_the_program_with_many_args() {
expect_log 'arg1=()'
expect_log 'arg2=( )'
expect_log 'arg3=(")'
expect_log 'arg4=("\\)'
expect_log 'arg5=(\\)'
expect_log 'arg6=(\\")'
expect_log 'arg7=(with space)'
expect_log 'arg8=(with^caret)'
expect_log 'arg9=(space ^caret)'
expect_log 'arg10=(caret^ space)'
expect_log 'arg11=(with"quote)'
expect_log 'arg12=(with\\backslash)'
expect_log 'arg13=(one\\ backslash and \\space)'
expect_log 'arg14=(two\\\\backslashes)'
expect_log 'arg15=(two\\\\ backslashes \\\\and space)'
expect_log 'arg16=(one\\"x)'
expect_log 'arg17=(two\\\\"x)'
expect_log 'arg18=(a \\ b)'
expect_log 'arg19=(a \\" b)'
expect_log 'arg20=(A)'
expect_log 'arg21=("a")'
expect_log 'arg22=(B C)'
expect_log 'arg23=("b c")'
expect_log 'arg24=(D"E)'
expect_log 'arg25=("d"e")'
expect_log 'arg26=(C:\\F G)'
expect_log 'arg27=("C:\\f g")'
expect_log 'arg28=(C:\\H"I)'
expect_log 'arg29=("C:\\h"i")'
expect_log 'arg30=(C:\\J\\"K)'
expect_log 'arg31=("C:\\j\\"k")'
expect_log 'arg32=(C:\\L M )'
expect_log 'arg33=("C:\\l m ")'
expect_log 'arg34=(C:\\N O\\)'
expect_log 'arg35=("C:\\n o\\")'
expect_log 'arg36=(C:\\P Q\\ )'
expect_log 'arg37=("C:\\p q\\ ")'
expect_log 'arg38=(C:\\R\\S\\)'
expect_log 'arg39=(C:\\R x\\S\\)'
expect_log 'arg40=("C:\\r\\s\\")'
expect_log 'arg41=("C:\\r x\\s\\")'
expect_log 'arg42=(C:\\T U\\W\\)'
expect_log 'arg43=("C:\\t u\\w\\")'
expect_log 'arg44=(a)'
expect_log 'arg45=(b\\")'
expect_log 'arg46=(c)'
}
# ----------------------------------------------------------------------
# TESTS
# ----------------------------------------------------------------------
function test_args_escaping() {
local -r ws="$TEST_TMPDIR/${FUNCNAME[0]}" # unique workspace for this test
mkdir -p "$ws"
create_workspace_with_default_repos "$ws/WORKSPACE"
create_py_file_that_prints_args "$ws"
create_build_file_with_many_args "$ws"
# Batch mode, Bash-less run command.
if $is_windows; then
( cd "$ws"
bazel --batch run --incompatible_windows_bashless_run_command \
--verbose_failures :x &>"$TEST_log" || fail "expected success"
)
assert_good_output_of_the_program_with_many_args
rm "$TEST_log"
fi
# Batch mode, Bash-ful run command.
( cd "$ws"
bazel --batch run --noincompatible_windows_bashless_run_command \
--verbose_failures :x &>"$TEST_log" || fail "expected success"
)
assert_good_output_of_the_program_with_many_args
rm "$TEST_log"
# Server mode, Bash-less run command.
if $is_windows; then
( cd "$ws"
bazel run --incompatible_windows_bashless_run_command \
--verbose_failures :x &>"$TEST_log" || fail "expected success"
)
assert_good_output_of_the_program_with_many_args
rm "$TEST_log"
fi
# Server mode, Bash-ful run command.
( cd "$ws"
bazel run --noincompatible_windows_bashless_run_command \
--verbose_failures :x &>"$TEST_log" || fail "expected success"
)
assert_good_output_of_the_program_with_many_args
rm "$TEST_log"
}
function test_untokenizable_args() {
local -r ws="$TEST_TMPDIR/${FUNCNAME[0]}" # unique workspace for this test
mkdir -p "$ws"
create_workspace_with_default_repos "$ws/WORKSPACE"
create_py_file_that_prints_args "$ws"
create_build_file_for_untokenizable_args "$ws"
( cd "$ws"
bazel run --verbose_failures :cannot_tokenize \
2>"$TEST_log" && fail "expected failure" || true
)
expect_log "ERROR:.*in args attribute of py_binary rule.*unterminated quotation"
}
function test_host_config() {
local -r ws="$TEST_TMPDIR/${FUNCNAME[0]}" # unique workspace for this test
mkdir -p "$ws"
create_workspace_with_default_repos "$ws/WORKSPACE"
cat >"$ws/BUILD" <<'eof'
load("//:rule.bzl", "run_host_configured")
run_host_configured(
name = "x",
tool = ":print_args",
out = "x.out",
)
py_binary(
name = "print_args",
srcs = ["print_args.py"],
)
eof
cat >"$ws/print_args.py" <<'eof'
import sys
with open(sys.argv[1], "wt") as f:
for i in range(2, len(sys.argv)):
f.write("arg%d=(%s)" % (i, sys.argv[i]))
eof
cat >"$ws/rule.bzl" <<'eof'
def _impl(ctx):
tool_inputs, tool_input_mfs = ctx.resolve_tools(tools = [ctx.attr.tool])
ctx.actions.run(
outputs = [ctx.outputs.out],
tools = tool_inputs,
executable = ctx.executable.tool,
arguments = [ctx.outputs.out.path, "a", "", "\"b \\\"c", "z"],
use_default_shell_env = True,
input_manifests = tool_input_mfs,
)
return DefaultInfo(files = depset(items = [ctx.outputs.out]))
run_host_configured = rule(
implementation = _impl,
attrs = {
"tool": attr.label(executable = True, cfg = "host"),
"out": attr.output(),
},
)
eof
( cd "$ws"
bazel build --verbose_failures :x &>"$TEST_log" || fail "expected success"
cat bazel-bin/x.out >> "$TEST_log"
)
# This output is right.
expect_log 'arg2=(a)'
expect_log 'arg3=()'
expect_log 'arg4=("b \\"c)'
expect_log 'arg5=(z)'
}
run_suite "Tests about how Bazel passes py_binary.args to the binary"