Compile template-manifestor with bazel

This allows running the whole `make` flow with unnested bazel.

Signed-off-by: Roman Mohr <[email protected]>

BUILD.bazel

@@ -305,6 +305,16 @@ genrule(
     executable = 1,
 )
 
+genrule(
+    name = "build-manifest-templator",
+    srcs = [
+        "//tools/manifest-templator",
+    ],
+    outs = ["manifest-templator-copier"],
+    cmd = "echo '#!/bin/sh\n\ncp $(SRCS) $$1' > \"$@\"",
+    executable = 1,
+)
+
 genrule(
     name = "build-junit-merger",
     srcs = [

hack/build-manifests.sh

@@ -33,15 +33,20 @@ kubevirt_logo_path="assets/kubevirt_logo.png"
 rm -rf ${MANIFESTS_OUT_DIR}
 rm -rf ${MANIFEST_TEMPLATES_OUT_DIR}
 
-(cd ${KUBEVIRT_DIR}/tools/manifest-templator/ && go_build)
+rm -rf "${TESTS_OUT_DIR}/tools"
+mkdir -p "${TESTS_OUT_DIR}/tools"
+templator=${TESTS_OUT_DIR}/tools/manifest-templator
+
+bazel run \
+    --config=${ARCHITECTURE} \
+    //:build-manifest-templator -- ${templator}
 
 # first process file includes only
 args=$(cd ${KUBEVIRT_DIR}/manifests && find . -type f -name "*.yaml.in" -not -path "./generated/*")
 for arg in $args; do
     infile=${KUBEVIRT_DIR}/manifests/${arg}
     outfile=${KUBEVIRT_DIR}/manifests/${arg}.tmp
-
-    ${KUBEVIRT_DIR}/tools/manifest-templator/manifest-templator \
+    ${templator} \
         --process-files \
         --generated-manifests-dir=${KUBEVIRT_DIR}/manifests/generated/ \
         --input-file=${infile} >${outfile}
@@ -70,7 +75,7 @@ for arg in $args; do
     outfile=${final_out_dir}/${manifest}
     template_outfile=${final_templates_out_dir}/${manifest}.j2
 
-    ${KUBEVIRT_DIR}/tools/manifest-templator/manifest-templator \
+    ${templator} \
         --process-vars \
         --namespace=${namespace} \
         --cdi-namespace=${cdi_namespace} \
@@ -98,7 +103,7 @@ for arg in $args; do
         continue
     fi
 
-    ${KUBEVIRT_DIR}/tools/manifest-templator/manifest-templator \
+    ${templator} \
         --process-vars \
         --namespace="{{ namespace }}" \
         --cdi-namespace="{{ cdi_namespace }}" \

tools/manifest-templator/manifest-templator.go

@@ -96,6 +96,12 @@ func main() {
 	pflag.CommandLine.ParseErrorsWhitelist.UnknownFlags = true
 	pflag.Parse()
 
+	if path := os.Getenv("BUILD_WORKSPACE_DIRECTORY"); path != "" {
+		if err := os.Chdir(path); err != nil {
+			panic(err)
+		}
+	}
+
 	if !(*processFiles || *processVars) {
 		panic("at least one of process-files or process-vars must be true")
 	}