[7.x] ship @kbn/ui-shared-deps metrics in separate step (#91504) (#91539)

Co-authored-by: spalger <spalger@users.noreply.github.com>

packages/kbn-ui-shared-deps/scripts/build.js

@@ -7,9 +7,8 @@
  */
 
 const Path = require('path');
-const Fs = require('fs');
 
-const { run, createFailError, CiStatsReporter } = require('@kbn/dev-utils');
+const { run, createFailError } = require('@kbn/dev-utils');
 const webpack = require('webpack');
 const Stats = require('webpack/lib/Stats');
 const del = require('del');
@@ -34,34 +33,6 @@ run(
       const took = Math.round((stats.endTime - stats.startTime) / 1000);
 
       if (!stats.hasErrors() && !stats.hasWarnings()) {
-        if (!flags.dev) {
-          const reporter = CiStatsReporter.fromEnv(log);
-
-          const metrics = [
-            {
-              group: '@kbn/ui-shared-deps asset size',
-              id: 'kbn-ui-shared-deps.js',
-              value: Fs.statSync(Path.resolve(DIST_DIR, 'kbn-ui-shared-deps.js')).size,
-            },
-            {
-              group: '@kbn/ui-shared-deps asset size',
-              id: 'kbn-ui-shared-deps.@elastic.js',
-              value: Fs.statSync(Path.resolve(DIST_DIR, 'kbn-ui-shared-deps.@elastic.js')).size,
-            },
-            {
-              group: '@kbn/ui-shared-deps asset size',
-              id: 'css',
-              value:
-                Fs.statSync(Path.resolve(DIST_DIR, 'kbn-ui-shared-deps.css')).size +
-                Fs.statSync(Path.resolve(DIST_DIR, 'kbn-ui-shared-deps.v7.light.css')).size,
-            },
-          ];
-
-          log.debug('metrics:', metrics);
-
-          await reporter.metrics(metrics);
-        }
-
         log.success(`webpack completed in about ${took} seconds`);
         return;
       }
@@ -101,6 +72,7 @@ run(
       return;
     }
 
+    log.info('running webpack');
     await onCompilationComplete(
       await new Promise((resolve, reject) => {
         compiler.run((error, stats) => {

packages/kbn-ui-shared-deps/webpack.config.js

@@ -12,6 +12,7 @@ const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const CompressionPlugin = require('compression-webpack-plugin');
 const { REPO_ROOT } = require('@kbn/utils');
 const webpack = require('webpack');
+const { RawSource } = require('webpack-sources');
 
 const UiSharedDeps = require('./index');
 
@@ -145,6 +146,36 @@ exports.getWebpackConfig = ({ dev = false } = {}) => ({
             test: /\.(js|css)$/,
             cache: false,
           }),
+          new (class MetricsPlugin {
+            apply(compiler) {
+              compiler.hooks.emit.tap('MetricsPlugin', (compilation) => {
+                const metrics = [
+                  {
+                    group: '@kbn/ui-shared-deps asset size',
+                    id: 'kbn-ui-shared-deps.js',
+                    value: compilation.assets['kbn-ui-shared-deps.js'].size(),
+                  },
+                  {
+                    group: '@kbn/ui-shared-deps asset size',
+                    id: 'kbn-ui-shared-deps.@elastic.js',
+                    value: compilation.assets['kbn-ui-shared-deps.@elastic.js'].size(),
+                  },
+                  {
+                    group: '@kbn/ui-shared-deps asset size',
+                    id: 'css',
+                    value:
+                      compilation.assets['kbn-ui-shared-deps.css'].size() +
+                      compilation.assets['kbn-ui-shared-deps.v7.light.css'].size(),
+                  },
+                ];
+
+                compilation.emitAsset(
+                  'metrics.json',
+                  new RawSource(JSON.stringify(metrics, null, 2))
+                );
+              });
+            }
+          })(),
         ]),
   ],
 });

test/scripts/jenkins_baseline.sh

@@ -7,7 +7,9 @@ echo " -> building and extracting OSS Kibana distributable for use in functional
 node scripts/build --debug --oss
 
 echo " -> shipping metrics from build to ci-stats"
-node scripts/ship_ci_stats --metrics target/optimizer_bundle_metrics.json
+node scripts/ship_ci_stats \
+  --metrics target/optimizer_bundle_metrics.json \
+  --metrics packages/kbn-ui-shared-deps/target/metrics.json
 
 linuxBuild="$(find "$KIBANA_DIR/target" -name 'kibana-*-linux-x86_64.tar.gz')"
 installDir="$PARENT_DIR/install/kibana"

test/scripts/jenkins_build_kibana.sh

@@ -16,7 +16,9 @@ echo " -> building and extracting OSS Kibana distributable for use in functional
 node scripts/build --debug --oss
 
 echo " -> shipping metrics from build to ci-stats"
-node scripts/ship_ci_stats --metrics target/optimizer_bundle_metrics.json
+node scripts/ship_ci_stats \
+  --metrics target/optimizer_bundle_metrics.json \
+  --metrics packages/kbn-ui-shared-deps/target/metrics.json
 
 mkdir -p "$WORKSPACE/kibana-build-oss"
 cp -pR build/oss/kibana-*-SNAPSHOT-linux-x86_64/. $WORKSPACE/kibana-build-oss/

test/scripts/jenkins_xpack_baseline.sh

@@ -8,7 +8,9 @@ cd "$KIBANA_DIR"
 node scripts/build --debug --no-oss
 
 echo " -> shipping metrics from build to ci-stats"
-node scripts/ship_ci_stats --metrics target/optimizer_bundle_metrics.json
+node scripts/ship_ci_stats \
+  --metrics target/optimizer_bundle_metrics.json \
+  --metrics packages/kbn-ui-shared-deps/target/metrics.json
 
 linuxBuild="$(find "$KIBANA_DIR/target" -name 'kibana-*-linux-x86_64.tar.gz')"
 installDir="$KIBANA_DIR/install/kibana"

test/scripts/jenkins_xpack_build_kibana.sh

@@ -32,7 +32,9 @@ cd "$KIBANA_DIR"
 node scripts/build --debug --no-oss
 
 echo " -> shipping metrics from build to ci-stats"
-node scripts/ship_ci_stats --metrics target/optimizer_bundle_metrics.json
+node scripts/ship_ci_stats \
+  --metrics target/optimizer_bundle_metrics.json \
+  --metrics packages/kbn-ui-shared-deps/target/metrics.json
 
 linuxBuild="$(find "$KIBANA_DIR/target" -name 'kibana-*-linux-x86_64.tar.gz')"
 installDir="$KIBANA_DIR/install/kibana"