Synchronize mixed versions approach with v3.8.x

(cherry picked from commit 8cc9806)

Author: HoloRin

BUILD.package_generic_unix

@@ -4,12 +4,18 @@ load("@//:rabbitmqctl.bzl", "rabbitmqctl")
 
 rabbitmq_package_generic_unix(
     name = "broker-home",
-    sbin = glob(["sbin/*"]),
-    escript = glob(["escript/*"]),
-    plugins = [
-        "//plugins:standard_plugins",
-        "//plugins:inet_tcp_proxy_ez",
-    ],
+    additional_files =
+        glob(
+            [
+                "sbin/*",
+                "escript/*",
+            ],
+            exclude = ["sbin/rabbitmqctl"],
+        ) + [
+            "//plugins:standard_plugins",
+            "//plugins:inet_tcp_proxy_ez",
+        ],
+    rabbitmqctl = "sbin/rabbitmqctl",
 )
 
 rabbitmq_run(
@@ -27,7 +33,6 @@ rabbitmq_run_command(
 rabbitmqctl(
     name = "rabbitmqctl",
     home = ":broker-home",
-    # visibility = ["//visibility:public"],
 )
 
 rabbitmqctl(

rabbitmq_home.bzl

@@ -3,9 +3,7 @@ load("@bazel-erlang//:bazel_erlang_lib.bzl", "ErlangLibInfo", "flat_deps", "path
 RabbitmqHomeInfo = provider(
     doc = "An assembled RABBITMQ_HOME dir",
     fields = {
-        "sbin": "Files making up the sbin dir",
-        "escript": "Files making up the escript dir",
-        "plugins": "Files making up the plugins dir",
+        "rabbitmqctl": "rabbitmqctl script from the sbin directory",
     },
 )
 
@@ -112,11 +110,16 @@ def _impl(ctx):
 
     plugins = _flatten([_plugins_dir_links(ctx, plugin) for plugin in plugins])
 
+    rabbitmqctl = None
+    for script in scripts:
+        if script.basename == "rabbitmqctl":
+            rabbitmqctl = script
+    if rabbitmqctl == None:
+        fail("could not find rabbitmqct among", scripts)
+
     return [
         RabbitmqHomeInfo(
-            sbin = scripts,
-            escript = escripts,
-            plugins = plugins,
+            rabbitmqctl = rabbitmqctl,
         ),
         DefaultInfo(
             files = depset(scripts + escripts + plugins),
@@ -147,7 +150,7 @@ def _dirname(p):
     return p.rpartition("/")[0]
 
 def rabbitmq_home_short_path(rabbitmq_home):
-    short_path = rabbitmq_home[RabbitmqHomeInfo].sbin[0].short_path
+    short_path = rabbitmq_home[RabbitmqHomeInfo].rabbitmqctl.short_path
     if rabbitmq_home.label.workspace_root != "":
         short_path = path_join(rabbitmq_home.label.workspace_root, short_path)
     return _dirname(_dirname(short_path))

rabbitmq_package_generic_unix.bzl

@@ -1,26 +1,19 @@
 load("@//:rabbitmq_home.bzl", "RabbitmqHomeInfo")
 
 def _impl(ctx):
-    scripts = ctx.files.sbin
-    escripts = ctx.files.escript
-    plugins = ctx.files.plugins
-
     return [
         RabbitmqHomeInfo(
-            sbin = scripts,
-            escript = escripts,
-            plugins = plugins,
+            rabbitmqctl = ctx.file.rabbitmqctl,
         ),
         DefaultInfo(
-            files = depset(scripts + escripts + plugins),
+            files = depset(ctx.files.rabbitmqctl + ctx.files.additional_files),
         ),
     ]
 
 rabbitmq_package_generic_unix = rule(
     implementation = _impl,
     attrs = {
-        "sbin": attr.label_list(allow_files = True),
-        "escript": attr.label_list(allow_files = True),
-        "plugins": attr.label_list(allow_files = True),
+        "rabbitmqctl": attr.label(allow_single_file = True),
+        "additional_files": attr.label_list(allow_files = True),
     },
 )

rabbitmq_run.bzl

@@ -6,6 +6,7 @@ load(":rabbitmq_home.bzl", "RabbitmqHomeInfo", "rabbitmq_home_short_path")
 def _impl(ctx):
     rabbitmq_home_path = rabbitmq_home_short_path(ctx.attr.home)
 
+    # the rabbitmq-run.sh template only allows a single erl_libs currently
     erl_libs = [path_join(rabbitmq_home_path, "plugins")]
 
     ctx.actions.expand_template(

scripts/bazel/rabbitmq-run.sh

@@ -1,6 +1,18 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+rmq_realpath() {
+    local path=$1
+
+    if [ -d "$path" ]; then
+        cd "$path" && pwd
+    elif [ -f "$path" ]; then
+        cd "$(dirname "$path")" && echo $(pwd)/$(basename "$path")
+    else
+        echo "$path"
+    fi
+}
+
 if [ -z ${TEST_SRCDIR+x} ]; then
 BASE_DIR=$PWD
 else
@@ -41,7 +53,7 @@ if [ ! -z ${EXTRA_PLUGINS_DIR+x} ]; then
 fi
 
 TEST_TMPDIR=${TEST_TMPDIR:=${TMPDIR}/rabbitmq-test-instances}
-RABBITMQ_SCRIPTS_DIR=${BASE_DIR}/{RABBITMQ_HOME}/sbin
+RABBITMQ_SCRIPTS_DIR="$(rmq_realpath ${BASE_DIR}/{RABBITMQ_HOME}/sbin)"
 RABBITMQ_PLUGINS=${RABBITMQ_SCRIPTS_DIR}/rabbitmq-plugins
 RABBITMQ_SERVER=${RABBITMQ_SCRIPTS_DIR}/rabbitmq-server
 RABBITMQCTL=${RABBITMQ_SCRIPTS_DIR}/rabbitmqctl