CI fixes (bazelbuild#784)

* do not use bzlmod for integration test

* change distro target

* split out doc_build to non bzlmod

.bazelci/integration.yml

@@ -1,23 +1,17 @@
-lts: &lts
-  bazel: latest
-
-rolling: &rolling
-  bazel: rolling
-
 
 common: &common
-  platform: ubuntu1804
   working_directory: ..
   build_targets:
-  - "distro:*"
+  - "distro:all"
 
 tasks:
   rolling_ubuntu:
     name: rolling_distro
-    <<: *rolling
+    platform: ubuntu1804
+    bazel: rolling
     <<: *common
   lts_ubuntu:
     name: lts_distro
     platform: ubuntu1804
-    <<: *lts
+    bazel: latest
     <<: *common

.bazelci/tests.yml

@@ -61,10 +61,6 @@ ubuntu1804: &ubuntu
   platform: ubuntu1804
   <<: *common
   <<: *default_tests
-  build_targets:
-    - "//distro:distro"
-    - "//distro:relnotes"
-    - "//doc_build:*"
 
 centos7: &centos
   platform: centos7_java11_devtoolset10
@@ -94,6 +90,9 @@ tasks:
     platform: ubuntu1804
     build_flags:
       - "--enable_bzlmod"
+    build_targets:
+      - "//distro:distro"
+      - "//distro:relnotes"
     <<: *common
     <<: *rolling
     <<: *default_tests
@@ -118,6 +117,10 @@ tasks:
     name: lts_ubuntu
     <<: *ubuntu
     <<: *lts
+    build_targets:
+      - "//distro:distro"
+      - "//distro:relnotes"
+      - "//doc_build:*"
   lts_windows:
     name: lts_windows
     <<: *windows

WORKSPACE.bzlmod

@@ -15,9 +15,13 @@ local_repository(
 #)
 
 # Needed for making our release notes
-#load("//toolchains/git:git_configure.bzl", "experimental_find_system_git")
-#
-#experimental_find_system_git(
-#    name = "rules_pkg_git",
-#    verbose = False,
-#)
+load("//toolchains/git:git_configure.bzl", "experimental_find_system_git_bzlmod")
+
+experimental_find_system_git_bzlmod(
+    name = "rules_pkg_git",
+    verbose = False,
+)
+register_toolchains(
+    "@rules_pkg_git//:git_auto_toolchain",
+    "//toolchains/git:git_missing_toolchain",
+)

toolchains/git/git_configure.bzl

@@ -58,6 +58,7 @@ _find_system_git = repository_rule(
     },
 )
 
+# buildifier: disable=function-docstring-args
 def experimental_find_system_git(name, workspace_file = None, verbose = False):
     """Create a toolchain that lets you run git.
 
@@ -76,3 +77,19 @@ def experimental_find_system_git(name, workspace_file = None, verbose = False):
         "@%s//:git_auto_toolchain" % name,
         "@rules_pkg//toolchains/git:git_missing_toolchain",
     )
+
+# buildifier: disable=function-docstring-args
+def experimental_find_system_git_bzlmod(name, workspace_file = None, verbose = False):
+    """Create a toolchain that lets you run git.
+
+    WARNING: This is experimental. The API and behavior are subject to change
+    at any time.
+
+    This presumes that your Bazel WORKSPACE file is located under your git
+    client. That is often true, but might not be in a multi-repo where you
+    might weave together a Bazel workspace from several git repos that are
+    all rooted under the WORKSPACE file.
+    """
+    if not workspace_file:
+        workspace_file = Label("//:MODULE.bazel")
+    _find_system_git(name = name, workspace_file = workspace_file, verbose = verbose)