statusline-command.sh uses macOS-only stat syntax, breaks on Linux/WSL

[GregorLinksys]

Problem

The statusline script uses stat -f %m (macOS syntax) in 7 locations to get file modification times. On Linux/WSL, this fails silently because Linux requires stat -c %Y.

This causes cache age calculations to always return 0, making caches appear perpetually "valid" even when empty. Result: Skills, Workflows, and Hooks counts show blank values on Linux systems.

Affected Lines

• Line 123 (git cache)
• Line 178 (location cache)
• Line 197 (weather cache)
• Line 234 (counts cache)
• Lines 792-793 (learning cache)
• Line 1002 (quote cache)

Environment

• WSL2 Ubuntu on Windows 11
• Claude Code 2.1.19
• PAI v2.4

Solution

Add a cross-platform helper function after line 48:

# Cross-platform file mtime (seconds since epoch)
get_mtime() {
    stat -c %Y "$1" 2>/dev/null || stat -f %m "$1" 2>/dev/null || echo 0
}


# Then replace all stat -f %m "$FILE" calls with $(get_mtime "$FILE").

[vpzed]

Similar with the sed usage on line 248

sed -i '' 's/signals_count/learnings_count/' "$_parallel_tmp/counts.sh" 2>/dev/null

That is MacOS specific syntax. On potential fix is to convert it to a function too. The preliminary MacOS/Linux de-confliction functions I made are:

# Get file modification time (epoch seconds)
stat_local() {
  if [[ "$OSTYPE" == "darwin"* ]]; then
    stat -f %m "$1" 2>/dev/null || echo 0
  else
    stat -c %Y "$1" 2>/dev/null || echo 0
  fi
}

# In-place sed editing
sed_local() {
  if [[ "$OSTYPE" == "darwin"* ]]; then
    sed -i '' "$@"
  else
    sed -i "$@"
  fi
}

The use of "fd" can also be problematic on some Linux distributions due to the legacy fdutils package containing a utility called fd. Therefore on Debian-based distributions the name is de-conflicted to fdfind, and on Redhat-based distributions the it's fd-find. This could be handled in different ways. A function is one way, or the installer could add an appropriate alias, or mention to the user that an appropriate alias is needed. I'd think few users are installing the fdutils package on systems running PAI, but the history still creates this complexity.

[vpzed]

I went ahead and wrote a preliminary function for fd that handles MacOS and a couple of the popular variants. I tested that it works on Debian which is one of the ones with an alternate names.

# Debian-based and Redhat-based Linux de-conflict the name fd
# due to old fdutils package for workig with floppy disks
fd_local() {
  local cmd="fd"

  if [[ "$(uname -s)" == "Linux" && -r /etc/os-release ]]; then
    . /etc/os-release

    # Debian-based
    if [[ "$ID_LIKE" == *debian* || "$ID" == "debian" || "$ID" == "ubuntu" ]]; then
      cmd="fdfind"
    fi

    # Red Hat–based
    if [[ "$ID_LIKE" == *rhel* || "$ID_LIKE" == *fedora* || "$ID" == "rhel" || "$ID" == "fedora" ]]; then
      cmd="fd-find"
    fi
  fi

  # Verify command exists
  if [[ -z "$cmd" || ! $(command -v "$cmd") ]]; then
    echo "fd: suitable fd binary not found" >&2
  fi

  # Execute fd with all passed arguments
  command "$cmd" "$@"
}