Make jar_app_layer._classpath_as_file public (#1947)

* Rename jar_app_layer._classpath_as_file to classpath_as_file

This is being done to make this attribute public so that callers can
specify it.

* Add classpath_as_file as argument to java_image

* Add classpath_as_file as argument to groovy_image

* Add classpath_as_file as argument to kt_jvm_image

* Add classpath_as_file as argument to scala_image

* Adds test for scala_image with classpath_as_file=True

* Adds test for java_image with classpath_as_file = True

* Adds test for groovy_image with classpath_as_file = True

* Adds test for kt_jvm_image with classpath_as_file = True

* Ignore new image tests under macos

* Trigger build

* Trigger build

Author: jakemcc

.bazelci/presubmit.yml

@@ -69,12 +69,15 @@ tasks:
       - -//tests/container/go:go_image_test
       - -//tests/container/go:go_static_image_test
       - -//tests/container/groovy:groovy_image_test
+      - -//tests/container/groovy:groovy_classpath_as_file_image_test
       - -//tests/container/java:java_image_test
+      - -//tests/container/java:java_classpath_as_file_image_test
       - -//tests/container/java:java_partial_entrypoint_image_test
       - -//tests/container/java:java_runfiles_as_lib_image_test
       - -//tests/container/java:java_runfiles_image_test
       - -//tests/container/java:simple_java_entrypoint_image_test
       - -//tests/container/kotlin:kotlin_image_test
+      - -//tests/container/kotlin:kotlin_classpath_as_file_image_test
       - -//tests/container/nodejs:nodejs_image_custom_binary_test
       - -//tests/container/nodejs:nodejs_image_custom_binary_with_args_test
       - -//tests/container/nodejs:nodejs_image_empty_list_args_test
@@ -86,6 +89,7 @@ tasks:
       - -//tests/container/python3:py3_image_test
       - -//tests/container/rust:rust_image_test
       - -//tests/container/scala:scala_image_test
+      - -//tests/container/scala:scala_classpath_as_file_image_test
       - -//tests/contrib:derivative_with_volume_repro_test
       - -//tests/contrib:random_file_img_non_repro_test
       - -//tests/contrib:rbe-test-xenial_repro_test

groovy/image.bzl

@@ -33,6 +33,7 @@ def groovy_image(
         deps = [],
         layers = [],
         jvm_flags = [],
+        classpath_as_file = None,
         **kwargs):
     """Builds a container image overlaying the groovy_binary.
 
@@ -93,6 +94,7 @@ def groovy_image(
         args = kwargs.get("args"),
         data = kwargs.get("data"),
         testonly = kwargs.get("testonly"),
+        classpath_as_file = classpath_as_file,
     )
 
 def repositories():

java/image.bzl

@@ -201,7 +201,7 @@ def _jar_app_layer_impl(ctx):
         "/usr/bin/java",
         "-cp",
         # Support optionally passing the classpath as a file.
-        "@" + classpath_path if ctx.attr._classpath_as_file else classpath,
+        "@" + classpath_path if ctx.attr.classpath_as_file else classpath,
     ] + jvm_flags + ([ctx.attr.main_class] + args if ctx.attr.main_class != "" else [])
 
     file_map = {
@@ -245,7 +245,7 @@ jar_app_layer = rule(
         "workdir": attr.string(default = ""),
 
         # Whether the classpath should be passed as a file.
-        "_classpath_as_file": attr.bool(default = False),
+        "classpath_as_file": attr.bool(default = False),
         "_jdk": attr.label(
             default = Label("@bazel_tools//tools/jdk:current_java_runtime"),
             providers = [java_common.JavaRuntimeInfo],
@@ -265,6 +265,7 @@ def java_image(
         runtime_deps = [],
         layers = [],
         jvm_flags = [],
+        classpath_as_file = None,
         **kwargs):
     """Builds a container image overlaying the java_binary.
 
@@ -327,6 +328,7 @@ def java_image(
         args = kwargs.get("args"),
         data = kwargs.get("data"),
         testonly = kwargs.get("testonly"),
+        classpath_as_file = classpath_as_file,
     )
 
 def _war_dep_layer_impl(ctx):

kotlin/image.bzl

@@ -34,6 +34,7 @@ def kt_jvm_image(
         deps = [],
         layers = [],
         jvm_flags = [],
+        classpath_as_file = None,
         **kwargs):
     """Builds a container image overlaying the kt_jvm_binary.
 
@@ -92,6 +93,7 @@ def kt_jvm_image(
         args = kwargs.get("args"),
         data = kwargs.get("data"),
         testonly = kwargs.get("testonly"),
+        classpath_as_file = classpath_as_file,
     )
 
 def repositories():

scala/image.bzl

@@ -33,6 +33,7 @@ def scala_image(
         runtime_deps = [],
         layers = [],
         jvm_flags = [],
+        classpath_as_file = None,
         **kwargs):
     """Builds a container image overlaying the scala_binary.
 
@@ -85,6 +86,7 @@ def scala_image(
         args = kwargs.get("args"),
         data = kwargs.get("data"),
         testonly = kwargs.get("testonly"),
+        classpath_as_file = classpath_as_file,
     )
 
 def repositories():

tests/container/groovy/BUILD

@@ -38,8 +38,29 @@ groovy_image(
     main_class = "examples.images.Binary",
 )
 
+groovy_image(
+    name = "groovy_classpath_as_file_image",
+    srcs = ["//testdata:Binary.groovy"],
+    args = [
+        "arg0",
+        "arg1",
+        "$(location :BUILD)",
+    ],
+    classpath_as_file = True,
+    data = [":BUILD"],
+    jvm_flags = ["-Dbuild.location=$(location :BUILD)"],
+    layers = [":groovy_image_library"],
+    main_class = "examples.images.Binary",
+)
+
 container_test(
     name = "groovy_image_test",
     configs = ["//tests/container/groovy/configs:groovy_image.yaml"],
     image = ":groovy_image",
 )
+
+container_test(
+    name = "groovy_classpath_as_file_image_test",
+    configs = ["//tests/container/groovy/configs:groovy_classpath_as_file_image.yaml"],
+    image = ":groovy_classpath_as_file_image",
+)

tests/container/groovy/configs/groovy_classpath_as_file_image.yaml

@@ -0,0 +1,13 @@
+schemaVersion: 2.0.0
+
+metadataTest:
+  entrypoint: [
+    '/usr/bin/java',
+    '-cp',
+    '@/app/io_bazel_rules_docker/tests/container/groovy/groovy_classpath_as_file_image.classpath',
+    '-Dbuild.location=tests/container/groovy/BUILD',
+    'examples.images.Binary',
+    'arg0',
+    'arg1',
+    'tests/container/groovy/BUILD',
+  ]

tests/container/java/BUILD

@@ -51,6 +51,23 @@ java_image(
     main_class = "examples.images.Binary",
 )
 
+java_image(
+    name = "java_classpath_as_file_image",
+    srcs = ["//testdata:Binary.java"],
+    args = [
+        "arg0",
+        "arg1",
+        "$(location :BUILD)",
+    ],
+    classpath_as_file = True,
+    data = [":BUILD"],
+    jvm_flags = [
+        "-Dbuild.location=$(location :BUILD)",
+    ],
+    layers = [":java_image_library"],
+    main_class = "examples.images.Binary",
+)
+
 java_image(
     name = "java_runfiles_image",
     srcs = ["//testdata:Runfiles.java"],
@@ -91,6 +108,12 @@ container_test(
     image = ":java_image",
 )
 
+container_test(
+    name = "java_classpath_as_file_image_test",
+    configs = ["//tests/container/java/configs:java_classpath_as_file_image.yaml"],
+    image = ":java_classpath_as_file_image",
+)
+
 container_test(
     name = "java_runfiles_image_test",
     configs = ["//tests/container/java/configs:java_runfiles_image.yaml"],

tests/container/java/configs/java_classpath_as_file_image.yaml

@@ -0,0 +1,15 @@
+schemaVersion: 2.0.0
+
+metadataTest:
+  env:
+    - key: JAVA_RUNFILES
+      value: "/app"
+  entrypoint: [
+        '/usr/bin/java',
+        '-cp',
+        '@/app/io_bazel_rules_docker/tests/container/java/java_classpath_as_file_image.classpath',
+        '-Dbuild.location=tests/container/java/BUILD',
+        'examples.images.Binary',
+        'arg0',
+        'arg1',
+        'tests/container/java/BUILD']

tests/container/kotlin/BUILD

@@ -34,8 +34,32 @@ kt_jvm_image(
     deps = [],
 )
 
+kt_jvm_image(
+    name = "kt_jvm_classpath_as_file_image",
+    srcs = [
+        "//testdata:Binary.kt",
+        "//testdata:Library.kt",
+    ],
+    args = [
+        "arg0",
+        "arg1",
+        "$(location :BUILD)",
+    ],
+    classpath_as_file = True,
+    data = [":BUILD"],
+    jvm_flags = ["-Dbuild.location=$(location :BUILD)"],
+    main_class = "examples.images.Binary",
+    deps = [],
+)
+
 container_test(
     name = "kotlin_image_test",
     configs = ["//tests/container/kotlin/configs:kt_jvm_image.yaml"],
     image = ":kt_jvm_image",
 )
+
+container_test(
+    name = "kotlin_classpath_as_file_image_test",
+    configs = ["//tests/container/kotlin/configs:kt_jvm_classpath_as_file_image.yaml"],
+    image = ":kt_jvm_classpath_as_file_image",
+)