flan
2d32c81485
sitecustomize.py: exec_module was calling importlib.util.find_spec(fullname) after Python had already added the module to sys.modules. find_spec short-circuits to sys.modules[name].__spec__, which is our own wrapper spec, so real_spec.loader.exec_module(module) immediately called exec_module again — infinite recursion. Fix: resolve the real file spec in find_spec (before sys.modules is populated) and store it on the Loader. exec_module now uses the stored spec directly with no find_spec call. Also move _mark_done into the finally block so a module that fails to load doesn't trigger infinite retry loops on subsequent import attempts. apply.sh: warn() writes to stdout. Inside $(find_mw_python), stdout is captured by the command substitution, so any warn() call folded its text into $PYTHON — causing every subsequent "$PYTHON" invocation to fail. Fix: emit the fallback warning to stderr (>&2) so it goes to the log without being captured.
106 lines
4.2 KiB
Bash
Executable File
106 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# /data/truecloud-patch/apply.sh
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#
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# Registered as a TrueNAS PREINIT initshutdownscript.
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# Runs on every boot BEFORE middlewared starts, so patches land before
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# the first Python process for middlewared is created.
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#
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# TrueNAS updates replace /usr/ entirely; this script re-applies two patches:
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#
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# 1. sitecustomize.py — Python executes this automatically at startup.
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# Monkey-patches B2 restic support and fixes the
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# URL builder for empty-host providers.
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#
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# 2. Angular JS bundle — Widens the TrueCloud Backup credential dropdown
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# from Storj-only to include S3 and B2.
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#
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# Design principle: every step is independently fail-safe.
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# A failed patch logs a warning and continues; middlewared always starts.
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# Never use `set -e` in a PREINIT script.
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PATCH_DIR="/data/truecloud-patch"
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LOG="$PATCH_DIR/apply.log"
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# Rotate log at 512 KB to avoid unbounded growth on a system volume.
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if [ -f "$LOG" ] && [ "$(wc -c < "$LOG")" -gt 524288 ]; then
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mv "$LOG" "${LOG}.1"
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fi
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exec >> "$LOG" 2>&1
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echo "=== $(date -Iseconds) ==="
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# ── Helpers ───────────────────────────────────────────────────────────────────
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warn() { echo "WARNING: $*"; }
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ok() { echo "OK: $*"; }
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# Find the Python interpreter that middlewared actually uses.
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# On TrueNAS SCALE, /usr/bin/middlewared is usually a Python entry-point script
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# with a shebang pointing at the right interpreter (system or venv).
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find_mw_python() {
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local py="python3"
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local shebang=""
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if [ -x /usr/bin/middlewared ]; then
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# Read the first line safely (max 256 bytes) — avoids reading a binary ELF
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shebang=$(dd if=/usr/bin/middlewared bs=256 count=1 2>/dev/null | head -1 || true)
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if [[ "$shebang" =~ ^'#!'(/[^[:space:]]+python[^[:space:]]*) ]]; then
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py="${BASH_REMATCH[1]}"
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elif [[ "$shebang" =~ ^'#!/usr/bin/env '(python[^[:space:]]*) ]]; then
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py=$(command -v "${BASH_REMATCH[1]}" 2>/dev/null || echo "python3")
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fi
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fi
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# Verify the chosen interpreter can actually import middlewared.
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# Use >&2 so this message goes to stderr, not captured by $(...) substitution.
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if ! "$py" -c "import middlewared" 2>/dev/null; then
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echo "WARNING: '$py' cannot import middlewared; falling back to python3" >&2
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py="python3"
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fi
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echo "$py"
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}
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# ── Step 1: sitecustomize.py ──────────────────────────────────────────────────
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echo "--- backend patch ---"
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PYTHON=$(find_mw_python)
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echo "Using Python: $PYTHON"
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SITE_PKG=$("$PYTHON" -c "import site; print(site.getsitepackages()[0])" 2>/dev/null || true)
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if [ -z "$SITE_PKG" ]; then
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warn "Cannot determine site-packages directory; skipping backend patch."
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warn "Verify that '$PYTHON -c \"import site; print(site.getsitepackages())\"' works."
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else
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# Back up any pre-existing sitecustomize.py that isn't ours.
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if [ -f "$SITE_PKG/sitecustomize.py" ] && \
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! grep -q "truecloud-patch" "$SITE_PKG/sitecustomize.py" 2>/dev/null; then
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cp "$SITE_PKG/sitecustomize.py" \
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"$SITE_PKG/sitecustomize.py.pre-truecloud-patch"
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ok "Backed up existing sitecustomize.py"
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fi
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if cp "$PATCH_DIR/sitecustomize.py" "$SITE_PKG/sitecustomize.py" 2>/dev/null; then
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ok "Installed sitecustomize.py → $SITE_PKG/sitecustomize.py"
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else
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warn "Failed to write $SITE_PKG/sitecustomize.py (permission error?)"
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fi
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fi
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# ── Step 2: Angular bundle ────────────────────────────────────────────────────
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echo "--- UI patch ---"
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if "$PYTHON" "$PATCH_DIR/patch_ui.py"; then
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: # patch_ui.py prints its own status
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else
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warn "patch_ui.py exited non-zero; UI dropdown may still show Storj only."
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fi
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# ── Done ──────────────────────────────────────────────────────────────────────
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echo "=== done ==="
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