Add copy_directory rule (#366)

7 files changed, 130 insertions, 0 deletions

diff --git a/tests/copy_directory/BUILD.bazel b/tests/copy_directory/BUILD.bazel
new file mode 100644
index 0000000..2c72ab9
--- /dev/null
+++ b/tests/copy_directory/BUILD.bazel
@@ -0,0 +1,44 @@
+# This package aids testing the 'copy_directory' rule.
+
+load("//rules:copy_directory.bzl", "copy_directory")
+
+licenses(["notice"])
+
+package(default_testonly = 1)
+
+# Copy of directory containing files a and b, and a subdir containing c
+copy_directory(
+    name = "copy_of_dir_with_subdir",
+    src = "dir_with_subdir",
+    out = "dir_copy",
+)
+
+genrule(
+    name = "empty_directory",
+    outs = ["empty_dir"],
+    cmd = "mkdir $@",
+)
+
+copy_directory(
+    name = "copy_of_empty_dir",
+    src = "empty_dir",
+    out = "empty_dir_copy",
+)
+
+copy_directory(
+    name = "copy_of_dir_with_symlink",
+    src = "dir_with_symlink",
+    out = "dir_with_symlink_copy",
+)
+
+sh_test(
+    name = "copy_directory_tests",
+    srcs = ["copy_directory_tests.sh"],
+    data = [
+        ":copy_of_dir_with_subdir",
+        ":copy_of_dir_with_symlink",
+        ":copy_of_empty_dir",
+        "//tests:unittest.bash",
+    ],
+    deps = ["@bazel_tools//tools/bash/runfiles"],
+)
diff --git a/tests/copy_directory/copy_directory_tests.sh b/tests/copy_directory/copy_directory_tests.sh
new file mode 100755
index 0000000..37fbb09
--- /dev/null
+++ b/tests/copy_directory/copy_directory_tests.sh
@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+
+# Copyright 2019 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# --- begin runfiles.bash initialization ---
+# Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash).
+set -euo pipefail
+if [[ ! -d "${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 "$(rlocation bazel_skylib/tests/unittest.bash)" \
+  || { echo "Could not source bazel_skylib/tests/unittest.bash" >&2; exit 1; }
+
+function test_copy_dir_with_subdir__copies_a() {
+  cat "$(rlocation bazel_skylib/tests/copy_directory/dir_copy)/a" >"$TEST_log"
+  expect_log '^foo$'
+}
+
+function test_copy_dir_with_subdir__copies_b() {
+  cat "$(rlocation bazel_skylib/tests/copy_directory/dir_copy)/b" >"$TEST_log"
+  expect_log '^bar$'
+}
+
+function test_copy_dir_with_subdir__copies_c() {
+  cat "$(rlocation bazel_skylib/tests/copy_directory/dir_copy)/subdir/c" >"$TEST_log"
+  expect_log '^moocow$'
+}
+
+function test_copy_dir_with_subdir__correct_filecounts() {
+  local -r dir_filecount=$(ls "$(rlocation bazel_skylib/tests/copy_directory/dir_copy)" | wc -l)
+  assert_equals $dir_filecount 3
+  local -r subdir_filecount=$(ls "$(rlocation bazel_skylib/tests/copy_directory/dir_copy)/subdir" | wc -l)
+  assert_equals $subdir_filecount 1
+}
+
+function test_copy_empty_dir() {
+  local -r filecount=$(ls "$(rlocation bazel_skylib/tests/copy_directory/empty_dir_copy)" | wc -l)
+  assert_equals $filecount 0
+}
+
+function test_copy_dir_with_symlink__copies_file() {
+  cat "$(rlocation bazel_skylib/tests/copy_directory/dir_with_symlink_copy)/file" >"$TEST_log"
+  expect_log '^foo$'
+}
+
+function test_copy_dir_with_symlink__copies_symlink() {
+  cat "$(rlocation bazel_skylib/tests/copy_directory/dir_with_symlink_copy)/symlink" >"$TEST_log"
+  expect_log '^foo$'
+}
+
+
+run_suite "copy_directory test suite"
diff --git a/tests/copy_directory/dir_with_subdir/a b/tests/copy_directory/dir_with_subdir/a
new file mode 100644
index 0000000..1910281
--- /dev/null
+++ b/tests/copy_directory/dir_with_subdir/a
@@ -0,0 +1 @@
+foo
\ No newline at end of file
diff --git a/tests/copy_directory/dir_with_subdir/b b/tests/copy_directory/dir_with_subdir/b
new file mode 100644
index 0000000..ba0e162
--- /dev/null
+++ b/tests/copy_directory/dir_with_subdir/b
@@ -0,0 +1 @@
+bar
\ No newline at end of file
diff --git a/tests/copy_directory/dir_with_subdir/subdir/c b/tests/copy_directory/dir_with_subdir/subdir/c
new file mode 100644
index 0000000..062f177
--- /dev/null
+++ b/tests/copy_directory/dir_with_subdir/subdir/c
@@ -0,0 +1 @@
+moocow
\ No newline at end of file
diff --git a/tests/copy_directory/dir_with_symlink/file b/tests/copy_directory/dir_with_symlink/file
new file mode 100644
index 0000000..1910281
--- /dev/null
+++ b/tests/copy_directory/dir_with_symlink/file
@@ -0,0 +1 @@
+foo
\ No newline at end of file
diff --git a/tests/copy_directory/dir_with_symlink/symlink b/tests/copy_directory/dir_with_symlink/symlink
new file mode 120000
index 0000000..7b22242
--- /dev/null
+++ b/tests/copy_directory/dir_with_symlink/symlink
@@ -0,0 +1 @@
+./file
\ No newline at end of file