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f71a94ddf9
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> Co-authored-by: Matsuuu <matias.huhta@n8n.io>
71 lines
2.8 KiB
Bash
71 lines
2.8 KiB
Bash
#!/bin/sh
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# n8n-shadow-shim-version: 1
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#
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# n8n dev metrics — binary shim (template). setup.mjs renders this per shadowed
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# CLI and installs it in place of the real binary (the original is saved next to
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# it as <binary>.n8n-real), filling in the binary name, the saved real binary,
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# and its directory. Because it replaces the binary itself, ANY invocation hits
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# it — interactive, non-interactive, and AI agents alike. It always runs the real
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# binary, never changes its exit code, and reports usage in the background.
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#
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# Tracking is scoped to n8n checkouts and gated on consent (both in track.mjs).
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# N8N_DEV_SHIM_ACTIVE prevents nested calls (turbo -> pnpm, or the tracker's own
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# `<bin> --version` probe) from being counted twice. The real binary is baked in
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# (not derived from $0), so the shim can never re-invoke itself.
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__bin='__N8N_BIN__'
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__real='__N8N_REAL__'
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__bindir='__N8N_BINDIR__'
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__tracker='__N8N_TRACKER__' # installed copy of track.mjs, refreshed on each install
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# If the baked real binary moved (e.g. corepack/pnpm upgrade), re-resolve it via
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# PATH with our own directory removed — never resolving back to this shim.
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if [ ! -x "$__real" ]; then
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__cp=$(printf '%s' "${PATH:-}" | tr ':' '\n' | grep -vxF "$__bindir" | paste -sd: -)
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__real=$(PATH="$__cp" command -v "$__bin" 2>/dev/null)
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[ -n "$__real" ] || exec env PATH="$__cp" "$__bin" "$@" # last resort, no loop
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fi
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# Nested call: run the real binary without tracking, so it isn't counted twice.
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if [ -n "${N8N_DEV_SHIM_ACTIVE:-}" ]; then
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exec "$__real" "$@"
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fi
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# Millisecond clock. GNU date (Linux) has %N; macOS /bin/sh lacks it, so fall
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# back to perl's Time::HiRes (preinstalled on macOS). Whole seconds only if
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# neither exists — ponytail: add gdate/EPOCHREALTIME if such a box ever appears.
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__now_ms() {
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__t=$(date +%s%N 2>/dev/null)
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case "$__t" in
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'' | *[!0-9]*) ;; # not GNU date — fall through
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*) echo $(( __t / 1000000 )); return ;;
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esac
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if command -v perl >/dev/null 2>&1; then
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__t=$(perl -MTime::HiRes -e 'printf "%d", Time::HiRes::time()*1000' 2>/dev/null)
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[ -n "$__t" ] && { echo "$__t"; return; }
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fi
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echo $(( $(date +%s) * 1000 ))
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}
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__start=$(__now_ms)
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N8N_DEV_SHIM_ACTIVE=1 "$__real" "$@"
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__code=$?
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__end=$(__now_ms)
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# Run the installed tracker (a stable copy in ~/.n8n/dev, not the checkout's) — it
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# self-scopes to n8n checkouts, so we just hand it the cwd and let it decide.
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if [ -f "$__tracker" ] && command -v node >/dev/null 2>&1; then
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# Background in a subshell so no "[job] PID" notice reaches the terminal.
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# Pass argv through as the tracker's own arguments ("$@", not "$*") so quoted
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# and empty args keep their boundaries.
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(
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N8N_DEV_TRACK_BIN="$__bin" \
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N8N_DEV_TRACK_MS="$(( __end - __start ))" \
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N8N_DEV_TRACK_CODE="$__code" \
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N8N_DEV_TRACK_CWD="$PWD" \
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nohup node "$__tracker" "$@" >/dev/null 2>&1 &
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)
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fi
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exit $__code
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