ci(netlify): use specialized build script for metadata file

Signed-off-by: Andrei Jiroh Halili <ajhalili2006@andreijiroh.eu.org>

scripts/build-metadata.json

+{
+    "commitId": $BUILD_COMMIT,
+    "buildId": $BUILD_ID,
+    "buildLogs": $BUILD_LOGS_URL
+}
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scripts/build.sh

 #!/bin/bash
 
 if [[ $FF_DISABLE_VENV_USAGE_DURING_BUILD != "false" ]]; then
+  echo "setting up virtualenv"
   python3 -m venv .venv
   source .venv/bin/activate
+else
+  echo "virtualenv disabled for this build"
 fi
+echo
 
+echo "installing packages"
 pip3 install -r requirements.txt --upgrade
 
+echo "building site"
 mkdocs build --verbose
+echo
 
+echo "copying .well-known files"
 cp -vr content/.well-known site/.well-known
\ No newline at end of file

scripts/netlify-build.sh

+#!/usr/bin/env bash
+
+set -x
+GIT_ROOTDIR=$(git rev-parse --show-toplevel)
+
+# https://docs.netlify.com/configure-builds/environment-variables/#build-metadata
+BUILD_COMMIT=${COMMIT_REF}
+BUILD_ID=${BUILD_ID}
+BUILD_LOGS_URL="https://app.netlify.com/sites/recaptime-squad-wiki/deploys/${DEPLOY_ID}"
+
+if [[ $NETLIFY != "true" ]]; then
+  echo "Script not ran inside Netlify CI"
+  exit 1
+fi
+
+bash "$GIT_ROOTDIR/scripts/build.sh"
+cat "$GIT_ROOTDIR/scripts/build-metadata.json" | envsubst > "$GIT_ROOTDIRsite/build-metadata.json"
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