Prepare for 1.22.0-alpha release (#31)

* Prepare for 1.22.0-alpha release

* Update CHANGELOG.md

Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

---------

Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

.github/scripts/draft-change-log-entries.sh

@@ -0,0 +1,34 @@
+#!/bin/bash -e
+
+version=$("$(dirname "$0")/get-version.sh")
+
+if [[ $version =~ ([0-9]+)\.([0-9]+)\.0 ]]; then
+  major="${BASH_REMATCH[1]}"
+  minor="${BASH_REMATCH[2]}"
+else
+  echo "unexpected version: $version"
+  exit 1
+fi
+
+if [[ $minor == 0 ]]; then
+  prior_major=$((major - 1))
+  prior_minor=$(sed -n "s/^## Version $prior_major\.\([0-9]\+\)\..*/\1/p" CHANGELOG.md | head -1)
+  if [[ -z $prior_minor ]]; then
+    # assuming this is the first release
+    range=
+  else
+    range="v$prior_major.$prior_minor.0..HEAD"
+  fi
+else
+  range="v$major.$((minor - 1)).0..HEAD"
+fi
+
+echo "## Unreleased"
+echo
+
+git log --reverse \
+        --perl-regexp \
+        --author='^(?!renovate\[bot\] )' \
+        --pretty=format:"* %s" \
+        "$range" \
+  | sed -E 's,\(#([0-9]+)\)$,\n  ([#\1](https://github.com/open-telemetry/semantic-conventions-java/pull/\1)),'

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+* Update to semconv 1.22
+  ([#29](https://github.com/open-telemetry/semantic-conventions-java/pull/29))
+* Compile only opentelemetry-api dependency
+  ([#30](https://github.com/open-telemetry/semantic-conventions-java/pull/30))
+
 ## Version 1.21.0 (2023-09-01)
 
 * Move to `io.opentelemetry.semnconv.*` package