core: refine cleanup_lxc to safely clear caches (#11197)

Updated the cleanup_lxc function to directly remove cache directories for Python, Node.js, Go, Rust, Ruby, and PHP, instead of relying on package manager commands. Improved error handling to prevent cleanup failures from affecting installs, and clarified documentation to reflect safer, more targeted cache removal.

misc/core.func

@@ -815,11 +815,9 @@ is_verbose_mode() {
 # ------------------------------------------------------------------------------
 # cleanup_lxc()
 #
-# - Comprehensive cleanup of package managers, caches, and logs
+# - Cleans package manager and language caches (safe for installs AND updates)
-# - Supports Alpine (apk), Debian/Ubuntu (apt), and language package managers
+# - Supports Alpine (apk), Debian/Ubuntu (apt), Python, Node.js, Go, Rust, Ruby, PHP
-# - Cleans: Python (pip/uv), Node.js (npm/yarn/pnpm), Go, Rust, Ruby, PHP
+# - Uses fallback error handling to prevent cleanup failures from breaking installs
-# - Truncates log files and vacuums systemd journal
-# - Run at end of container creation to minimize disk usage
 # ------------------------------------------------------------------------------
 cleanup_lxc() {
   msg_info "Cleaning up"
@@ -828,32 +826,52 @@ cleanup_lxc() {
     $STD apk cache clean || true
     rm -rf /var/cache/apk/*
   else
-    $STD apt -y autoremove || true
+    $STD apt -y autoremove 2>/dev/null || msg_warn "apt autoremove failed (non-critical)"
-    $STD apt -y autoclean || true
+    $STD apt -y autoclean 2>/dev/null || msg_warn "apt autoclean failed (non-critical)"
-    $STD apt -y clean || true
+    $STD apt -y clean 2>/dev/null || msg_warn "apt clean failed (non-critical)"
   fi
 
-  # Clear temp artifacts (keep sockets/FIFOs; ignore errors)
   find /tmp /var/tmp -type f -name 'tmp*' -delete 2>/dev/null || true
   find /tmp /var/tmp -type f -name 'tempfile*' -delete 2>/dev/null || true
 
-  # Node.js npm - directly remove cache directory
+  # Python
-  # npm cache clean/verify can fail with ENOTEMPTY errors, so we skip them
+  if command -v pip &>/dev/null; then
+    rm -rf /root/.cache/pip 2>/dev/null || true
+  fi
+  if command -v uv &>/dev/null; then
+    rm -rf /root/.cache/uv 2>/dev/null || true
+  fi
+
+  # Node.js
   if command -v npm &>/dev/null; then
     rm -rf /root/.npm/_cacache /root/.npm/_logs 2>/dev/null || true
   fi
-  # Node.js yarn
+  if command -v yarn &>/dev/null; then
-  if command -v yarn &>/dev/null; then yarn cache clean &>/dev/null || true; fi
+    rm -rf /root/.cache/yarn /root/.yarn/cache 2>/dev/null || true
-  # Node.js pnpm
+  fi
-  if command -v pnpm &>/dev/null; then pnpm store prune &>/dev/null || true; fi
+  if command -v pnpm &>/dev/null; then
-  # Go
+    pnpm store prune &>/dev/null || true
-  if command -v go &>/dev/null; then $STD go clean -cache -modcache || true; fi
+  fi
-  # Rust cargo
+
-  if command -v cargo &>/dev/null; then $STD cargo clean || true; fi
+  # Go (only build cache, not modules)
-  # Ruby gem
+  if command -v go &>/dev/null; then
-  if command -v gem &>/dev/null; then $STD gem cleanup || true; fi
+    $STD go clean -cache 2>/dev/null || true
-  # Composer (PHP)
+  fi
-  if command -v composer &>/dev/null; then COMPOSER_ALLOW_SUPERUSER=1 $STD composer clear-cache || true; fi
+
+  # Rust (only registry cache, not build artifacts)
+  if command -v cargo &>/dev/null; then
+    rm -rf /root/.cargo/registry/cache /root/.cargo/.package-cache 2>/dev/null || true
+  fi
+
+  # Ruby
+  if command -v gem &>/dev/null; then
+    rm -rf /root/.gem/cache 2>/dev/null || true
+  fi
+
+  # PHP
+  if command -v composer &>/dev/null; then
+    rm -rf /root/.composer/cache 2>/dev/null || true
+  fi
 
   msg_ok "Cleaned"
 }