Please address the comments from this code review:

## Overall Comments
- The build cache statistics added to `go_build` rely on `go build -v` line counts and a fixed `/tmp/go-build-compiled-count` file, which can be both inaccurate (non-1:1 with compiled units) and racy if multiple builds run in parallel; consider using a unique temp file per invocation and/or gating this logging behind a flag or env var.
- The `git ls-files | xargs touch` step in the composite action mutates mtimes for every tracked file, which could interfere with incremental build tooling or other languages in the same job; consider narrowing this to Go source/test files or to the directories actually used by Go.

## Individual Comments

### Comment 1
<location path="scripts/go-tool.sh" line_range="108" />
<code_context>
-  invoke_go_build -o "$output" "${dirs[@]}"
+  local total
+  total=$(go list -deps "${dirs[@]}" 2>/dev/null | wc -l | tr -d ' ')
+  local compiled_count=/tmp/go-build-compiled-count
+  invoke_go_build -o "$output" "${dirs[@]}" 2> >(tee >(wc -l | tr -d ' ' > "$compiled_count") >&2)
+  wait
</code_context>
<issue_to_address>
**issue (bug_risk):** Use a per-process or per-invocation temp file instead of a fixed path for compiled_count

A fixed `/tmp` path means concurrent runs of this script (or multiple `go_build` calls in one job) will race on the same `compiled_count` file, causing corrupted or incorrect counts. Please use a unique temp file per invocation (e.g., via `mktemp` or including `$$`/`$BASHPID` and job name in the filename) and clean it up afterward.
</issue_to_address>

### Comment 2
<location path="scripts/go-tool.sh" line_range="112-115" />
<code_context>
+  invoke_go_build -o "$output" "${dirs[@]}" 2> >(tee >(wc -l | tr -d ' ' > "$compiled_count") >&2)
+  wait
+  local compiled
+  compiled=$(cat "$compiled_count" 2>/dev/null | tr -d ' ')
+  local cached=$((total - compiled))
+  echo >&2 "Build cache: ${cached}/${total} deps cached ($compiled compiled)"
+  if [[ "$total" -gt 0 ]] && [[ $((cached * 100 / total)) -lt 50 ]]; then
+    echo >&2 "WARNING: Build cache hit rate below 50% (${cached}/${total}). Significant code changes invalidate the cached build — expect slower compilation."
+  fi
</code_context>
<issue_to_address>
**issue (bug_risk):** Harden arithmetic against empty or non-numeric totals/compiled counts

If `go list` or the build step fails (or their output format changes), `total`/`compiled` can be empty or non-numeric. Then `cached=$((total - compiled))` and the percentage calculation will throw a bash arithmetic error and abort. Please default missing values to 0 and ensure both vars are integers (e.g. `${total:-0}`, `${compiled:-0}` with a simple regex check), or skip the cache-reporting logic when the counts aren’t valid.
</issue_to_address>

Please address the comments from this code review:

## Overall Comments
- go-tool.sh unconditionally generates pkg/version/internal/zversion.go and reads the *VERSION files for every invocation; consider short‑circuiting for tools that don’t need version data (or only generating when TOOL is build/test) to avoid unexpected failures when those files are absent and to minimize unnecessary writes.
- Because zversion.go is now generated into the repo tree, please ensure it’s consistently excluded from version control and tooling (e.g., .gitignore, linters, IDEs) so local `go test` / `go build` runs don’t leave a perpetually dirty working tree or confuse static analysis.

## Individual Comments

### Comment 1
<location path="scripts/go-tool.sh" line_range="37" />
<code_context>
+		# Konflux/release builds set BUILD_TAG to the full version string.
+		# Use it directly (the Docker build context has no .git directory).
+		main_version="${BUILD_TAG}"
+		git_short_sha="$(echo "$BUILD_TAG" | grep -oP 'g\K[0-9a-f]+$' || echo "")"
 	else
-		die "Malformed status.sh output line ${line}"
</code_context>
<issue_to_address>
**issue (bug_risk):** Using `grep -P` may break in minimal environments that lack PCRE-enabled grep

Because this script runs in build tooling and containers, relying on `grep -P` can cause failures where PCRE-enabled grep isn’t available (e.g., busybox images). Please switch to a POSIX-compatible pattern (e.g., via `sed`, `awk`, or `grep` + `cut`) for extracting the short SHA so it works reliably across environments.
</issue_to_address>

### Comment 2
<location path="operator/Makefile" line_range="351-354" />
<code_context>
 	BUILDKIT_PROGRESS=plain ../scripts/docker-build.sh \
 		-t ${IMG} \
 		$(if $(GOARCH),--build-arg TARGET_ARCH=$(GOARCH)) \
+		--build-arg BUILD_TAG=$(shell cd .. && make --quiet --no-print-directory tag) \
 		-f $< \
 		..
</code_context>
<issue_to_address>
**suggestion:** The `BUILD_TAG` make invocation is duplicated and could be centralized

This `$(shell cd .. && make --quiet --no-print-directory tag)` call is now used in multiple targets (e.g., `docker-build` and `docker-buildx`). To keep tag computation consistent and easier to change later, please extract it into a Make variable (e.g., `BUILD_TAG_CMD` or `IMAGE_TAG`) and reference that in each target instead.

Suggested implementation:

```
# Force re-building the file to make sure the current environment is correctly reflected.
.PHONY: build/Dockerfile.gen
	sed -e 's,$${ROX_IMAGE_FLAVOR},$(ROX_IMAGE_FLAVOR),g; s,$${BUILD_IMAGE_VERSION},$(shell sed 's/\s*\#.*//' ../BUILD_IMAGE_VERSION),' < $< > $@

# Centralized build tag computation so all targets use the same tag logic.
BUILD_TAG ?= $(shell cd .. && make --quiet --no-print-directory tag)

.PHONY: docker-build
docker-build: build/Dockerfile.gen ## Build docker image with the operator.
	BUILDKIT_PROGRESS=plain ../scripts/docker-build.sh \
		-t ${IMG} \
		$(if $(GOARCH),--build-arg TARGET_ARCH=$(GOARCH)) \
		--build-arg BUILD_TAG=$(BUILD_TAG) \
		-f $< \
		..

```

Any other targets in `operator/Makefile` that currently invoke:
`$(shell cd .. && make --quiet --no-print-directory tag)`
(e.g., in `docker-buildx` or elsewhere) should be updated to use `$(BUILD_TAG)` instead, for example:
`--build-arg BUILD_TAG=$(BUILD_TAG)` or `-t ${IMG}:$(BUILD_TAG)` depending on how the tag is used.
</issue_to_address>

Please address the comments from this code review:

## Overall Comments
- The `generate_version_file` test path (`git describe --tags --abbrev=0 --exclude '*-nightly-*'`) hard-fails when no suitable tag exists; consider a fallback (e.g., a default version string or branch+SHA) so local or ephemeral environments without tags don't break `go test`.
- The `git_short_sha` extraction from `BUILD_TAG` via `sed -n 's/.*g\([0-9a-f]\{1,\}\)$/\1/p'` assumes a very specific version suffix; if Konflux/release tags change format, this will silently yield an empty SHA, so it may be safer to validate and log/die on unexpected formats or to pass the SHA explicitly as a separate build arg.

## Individual Comments

### Comment 1
<location path="scripts/go-tool.sh" line_range="25-12" />
<code_context>
+generate_version_file() {
</code_context>
<issue_to_address>
**question:** Consider guarding git invocations when TOOL=test to avoid failures in build contexts without a .git directory

In the `TOOL == "test"` path, `generate_version_file` always runs `git describe` from `${REPO_ROOT}`. In Docker or other environments without a `.git` directory, this will hit `die "git describe failed"`, causing tests to hard-fail even when version info isn’t essential.

To avoid that, you could either (a) skip version generation in test mode when `.git` is absent, or (b) let `BUILD_TAG` override the `TOOL == "test"` behavior so tests still run in non‑git environments.
</issue_to_address>

### Comment 2
<location path="operator/Dockerfile" line_range="53-54" />
<code_context>
+
+# go-tool.sh needs BUILD_TAG to generate version info when there's no .git
+# directory. The Makefile sets this via --build-arg from `make tag`.
+ARG BUILD_TAG
+ENV BUILD_TAG=${BUILD_TAG}

 # We've been historically building operator without CGO both upstream and downstream.
</code_context>
<issue_to_address>
**question (bug_risk):** Clarify behavior when BUILD_TAG is not provided to the Docker build

With the current setup, a plain `docker build` without `--build-arg BUILD_TAG=...` will leave `BUILD_TAG` empty. In images without `.git`, `go-tool.sh` will then fail when it tries `git describe`. Consider either enforcing that `BUILD_TAG` is set (e.g., `RUN test -n "$BUILD_TAG"`) or adding a non-`.git`-based fallback for version generation.
</issue_to_address>

Please address the comments from this code review:

## Overall Comments
- In go-tool.sh, the non-test path without BUILD_TAG assumes a functional git repo and tags; you might want a more explicit error (e.g., detecting missing .git or no tags) to avoid opaque `git describe failed` messages when the script is used in reduced build contexts.
- The BUILD_TAG parsing for GitShortSha in go-tool.sh assumes a `...g<sha>` suffix and silently falls back to an empty SHA if the format changes; consider either validating the expected format with a clearer failure or logging that GitShortSha will be empty to make debugging version issues easier.