Move tools package under internal (open-telemetry#1141)

It is not user-facing, so there is no reason to leave it in an
importable location. Fixes open-telemetry#1126.

Author: Aneurysm9

.github/dependabot.yml

@@ -83,8 +83,7 @@ updates:
       interval: "weekly"
       day: "sunday"
   - package-ecosystem: "gomod"
-    directory: "/tools"
+    directory: "/internal/tools"
     schedule:
       interval: "weekly"
       day: "sunday"
-

CHANGELOG.md

@@ -29,6 +29,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
     This removal of the propagators is reflective of the OpenTelemetry specification for these propagators as well as cleans up the `go.opentelemetry.io/otel/api/trace` API. (#1118)
 - Rename Jaeger tags used for instrumentation library information to reflect changes in OpenTelemetry specification. (#1119)
 - Rename `ProbabilitySampler` to `TraceIDRatioBased` and change semantics to ignore parent span sampling status. (#1115)
+- Move `tools` package under `internal`. (#1141)
 
 ## [0.11.0] - 2020-08-24
 

Makefile

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 EXAMPLES := $(shell ./get_main_pkgs.sh ./example)
-TOOLS_MOD_DIR := ./tools
+TOOLS_MOD_DIR := ./internal/tools
 
 # All source code and documents. Used in spell check.
 ALL_DOCS := $(shell find . -name '*.md' -type f | sort)

tools/go.mod internal/tools/go.mod

@@ -1,4 +1,4 @@
-module go.opentelemetry.io/otel/tools
+module go.opentelemetry.io/otel/internal/tools
 
 go 1.14
 

tools/go.sum internal/tools/go.sum

@@ -17,7 +17,7 @@
 readonly PROGNAME=$(basename "$0")
 readonly PROGDIR=$(readlink -m "$(dirname "$0")")
 
-readonly EXCLUDE_PACKAGES="tools"
+readonly EXCLUDE_PACKAGES="internal/tools"
 readonly SEMVER_REGEX="v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(\\-[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?(\\+[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?"
 
 usage() {