More than one entry point creates conflicting rules

[zoechi]

I have 3 entry points in web/ and bazelify creates a rule for each. When I want to build or run I always get errors because of conflicting rules.

I removed the duplicate rules in BUILD but now I get conflicts for rules of dependency packages.

/home/myuser/.cache/myuser/_bazel_myuser/d7cc63dbd0d8e0618a44683ac56d1bee/external/ng_bootstrap/BUILD:89:1: dart_web_application rule 'main' in package '' conflicts with existing dart_web_application rule.

ng_bootstrap is a dependency and I don't care about it's entry points because its just the demo applications. Any hint how to work around? I'm just starting with bazel.

[matanlurey]

Can you share an example of your generated BUILD file?

I thought I dealt with this by using the file name - but maybe that wasn't good enough:

https://github.com/dart-lang/bazel/blob/master/lib/src/bazelify/build.dart#L43

[zoechi]

# Automatically generated by "pub global run bazel:bazelify".
# DO NOT MODIFY BY HAND

# Bazelify: 1 libraries.
load("@io_bazel_rules_dart//dart/build_rules:core.bzl", "dart_library")

# Bazelify: 3 web apps.
load("@io_bazel_rules_dart//dart/build_rules:ddc.bzl", "dart_ddc_bundle")
load("@io_bazel_rules_dart//dart/build_rules:dev_server.bzl", "dev_server")
load("@io_bazel_rules_dart//dart/build_rules:web.bzl", "dart_web_application")

# Bazelify: 1 binaries.
load("@io_bazel_rules_dart//dart/build_rules:vm.bzl", "dart_vm_binary")

package(default_visibility = ["//visibility:public"])

_PUB_DEPS = [
    "@angular2//:angular2",
    "@bootstrap_sass//:bootstrap_sass",
    "@browser//:browser",
    "@fhir_client_api//:fhir_client_api",
    "@google_maps//:google_maps",
    "@http//:http",
    "@logging//:logging",
    "@meta//:meta",
    "@ng_bootstrap//:ng_bootstrap",
    "@path//:path",
    "@quiver//:quiver",
    "@sass//:sass",
]

# Generated automatically for package:fhir_client
dart_library(
    name = "fhir_client",
    srcs = glob(["lib/**", "web/**"]),
    deps = _PUB_DEPS,
    pub_pkg_name = "fhir_client",
)
# Generated automatically for package:fhir_client|web/designer.dart
dart_web_application(
    name = "designer",
    srcs = glob(["web/**"]),
    script_file = "web/designer.dart",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
)
dev_server(
    name = "designer_dartium_serve",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "designer_ddc_bundle",
    entry_library = "web/designer.dart",
    entry_module = ":fhir_client",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "designer_ddc_serve",
    data = [":designer_ddc_bundle"],
)
# Generated automatically for package:fhir_client|web/index.dart
dart_web_application(
    name = "index",
    srcs = glob(["web/**"]),
    script_file = "web/index.dart",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
)
dev_server(
    name = "index_dartium_serve",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "index_ddc_bundle",
    entry_library = "web/index.dart",
    entry_module = ":fhir_client",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "index_ddc_serve",
    data = [":index_ddc_bundle"],
)
# Generated automatically for package:fhir_client|web/practitioner.dart
dart_web_application(
    name = "practitioner",
    srcs = glob(["web/**"]),
    script_file = "web/practitioner.dart",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
)
dev_server(
    name = "practitioner_dartium_serve",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "practitioner_ddc_bundle",
    entry_library = "web/practitioner.dart",
    entry_module = ":fhir_client",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "practitioner_ddc_serve",
    data = [":practitioner_ddc_bundle"],
)
# Generated automatically for package:fhir_client|bin/uploader.dart
dart_vm_binary(
    name = "uploader",
    srcs = glob(["bin/**"]),
    script_file = "bin/uploader.dart",
    deps = _PUB_DEPS + [
        ":fhir_client",
    ],
)

[matanlurey]

Can I have a copy of the error too?

[zoechi]

ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/ng_bootstrap/BUILD:89:1: dart_web_application rule 'main' in package '' conflicts with existing dart_web_application rule.

Seems to be caused by .bazelify/ng_bootstrap.BUILD (not BUILD) I had to remove the duplicates there to get rid of the error.

# Automatically generated by "pub global run bazel:bazelify".
# DO NOT MODIFY BY HAND

# Bazelify: 1 libraries.
load("@io_bazel_rules_dart//dart/build_rules:core.bzl", "dart_library")

# Bazelify: 17 web apps.
load("@io_bazel_rules_dart//dart/build_rules:ddc.bzl", "dart_ddc_bundle")
load("@io_bazel_rules_dart//dart/build_rules:dev_server.bzl", "dev_server")
load("@io_bazel_rules_dart//dart/build_rules:web.bzl", "dart_web_application")

package(default_visibility = ["//visibility:public"])

_PUB_DEPS = [
    "@angular2//:angular2",
    "@bootstrap_sass//:bootstrap_sass",
    "@browser//:browser",
    "@dart_to_js_script_rewriter//:dart_to_js_script_rewriter",
    "@font_awesome//:font_awesome",
    "@intl//:intl",
    "@markdown//:markdown",
    "@node_shims//:node_shims",
    "@sass//:sass",
    "@stream_transformers//:stream_transformers",
]

# Generated automatically for package:ng_bootstrap
dart_library(
    name = "ng_bootstrap",
    srcs = glob(["lib/**", "web/**"]),
    deps = _PUB_DEPS,
    pub_pkg_name = "ng_bootstrap",
)
# Generated automatically for package:ng_bootstrap|web/index.dart
dart_web_application(
    name = "index",
    srcs = glob(["web/**"]),
    script_file = "web/index.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "index_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "index_ddc_bundle",
    entry_library = "web/index.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "index_ddc_serve",
    data = [":index_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/buttons/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/buttons/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/buttons/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/datepicker/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/datepicker/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/datepicker/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/typeahead/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/typeahead/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/typeahead/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/accordion/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/accordion/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/accordion/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/tooltip/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/tooltip/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/tooltip/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/tabsx/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/tabsx/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/tabsx/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/dropdown/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/dropdown/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/dropdown/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/timepicker/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/timepicker/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/timepicker/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/rating/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/rating/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/rating/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/carousel/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/carousel/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/carousel/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/tabs/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/tabs/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/tabs/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/pagination/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/pagination/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/pagination/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/modal/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/modal/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/modal/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/progress/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/progress/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/progress/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/alert/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/alert/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/alert/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)
# Generated automatically for package:ng_bootstrap|web/components/collapse/main.dart
dart_web_application(
    name = "main",
    srcs = glob(["web/**"]),
    script_file = "web/components/collapse/main.dart",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
)
dev_server(
    name = "main_dartium_serve",
    deps = _PUB_DEPS + [
        ":ng_bootstrap",
    ],
    data = glob(["web/**"]),
)
dart_ddc_bundle(
    name = "main_ddc_bundle",
    entry_library = "web/components/collapse/main.dart",
    entry_module = ":ng_bootstrap",
    input_html = "web/index.html",
    output_dir = "web",
)
dev_server(
    name = "main_ddc_serve",
    data = [":main_ddc_bundle"],
)

[zoechi]

Might be caused because it's a path dependency. I checked out markdown to fix a strong mode error and added a dependency_override to use my local version. Now I get the same error for markdown

[zoechi]

ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:24:1: dart_vm_binary rule 'markdown' in package '' conflicts with existing dart_library rule.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/markdown.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/ast.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/block_parser.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/document.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/extension_set.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/html_renderer.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/inline_parser.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/util.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/markdown/BUILD:17:1: Target '@markdown//:lib/src/version.dart' contains an error and its package is in error and referenced by '@markdown//:markdown'.
ERROR: /home/zoechi/.cache/bazel/_bazel_zoechi/d7cc63dbd0d8e0618a44683ac56d1bee/external/ng_bootstrap/BUILD:28:1: Target '@markdown//:markdown' contains an error and its package is in error and referenced by '@ng_bootstrap//:ng_bootstrap'.
ERROR: Analysis of target '//:designer_ddc_serve' failed; build aborted.
INFO: Elapsed time: 0.337s
ERROR: Build failed. Not running target.
z

ng_bootstrap also is a path dependency (but not with dependency_overrides)

[matanlurey]

Ah I see, ng_bootstrap has a bunch of main.dart.

We need to emit something like components_collapse_main.

[zoechi]

Are these needed at all? If I would want to run entrypoints from dependencies I would check out that project and run bazelify there.

[jakemac53]

https://github.com/dart-lang/bazel/pull/54 fixes a lot of issues with web app discovery, and should solve this issue (at least for web apps).

[natebosch]

Should we skip checking for web apps at all in deps?

[jakemac53]

good question.... it might actually be cool to be able to run things under say the example folder

[natebosch]

If we want to have https://github.com/dart-lang/bazel/issues/56 work for dependencies too we'd have to solve this problem.

If we limit to a dart_library only for deps it'd be harder to get broken by your deps, but in an ideal world we'd work when bazelifying those packages directly and thats the same problem.

[jakemac53]

Closing now as I think the original issue is resolved.