browsercode/script/check-upstream.sh at main · binaco/browsercode · GitHub

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#!/usr/bin/env bash

# check-upstream.sh — report drift from each upstream recorded in UPSTREAM.md.

# Reads the latest `To SHA` from each sync-log table in UPSTREAM.md and runs

# `git log <recorded-sha>..<remote-head>` against the matching remote to count

# unmerged commits.

# Usage: script/check-upstream.sh

# Exits 0 regardless of drift — this is informational, not a gate.

set -euo pipefail

REPO_ROOT="$(git rev-parse --show-toplevel)"

UPSTREAM_FILE="$REPO_ROOT/UPSTREAM.md"

if [[ ! -f "$UPSTREAM_FILE" ]]; then

echo "error: $UPSTREAM_FILE not found" >&2

exit 1

# Parse the latest `To SHA` under each section header.

# Section anchors are the exact "### " lines in UPSTREAM.md.

last_sha_after() {

local anchor="$1"

awk -v anchor="$anchor" '

$0 ~ "^### " anchor { in_section = 1; next }

in_section && /^### / { in_section = 0 }

in_section && /^\| [0-9]{4}-[0-9]{2}-[0-9]{2} \|/ {

n = split($0, cols, "|")

# cols[1] is empty (leading |); Date=cols[2], From=cols[3], To=cols[4]

gsub(/^[[:space:]]+|[[:space:]]+$/, "", cols[4])

# Skip placeholder dashes

if (cols[4] != "—" && cols[4] != "-" && cols[4] != "") last = cols[4]

}

END { if (last) print last }

' "$UPSTREAM_FILE"

}

report_drift() {

local label="$1"

local remote="$2"

local remote_branch="$3"

local recorded_sha="$4"

echo "=== $label ==="

if [[ -z "$recorded_sha" ]]; then

echo " no sync recorded yet (nothing to compare against)"

echo

return

if ! git remote | grep -qx "$remote"; then

echo " warning: remote '$remote' not configured. Add it to see drift:"

echo " git remote add $remote <url>"

echo

return

# Strip backticks if present in the markdown cell.

recorded_sha="${recorded_sha//\`/}"

git fetch --quiet "$remote" "$remote_branch" 2>/dev/null || {

echo " warning: could not fetch $remote/$remote_branch"

echo

return

}

local remote_head

remote_head="$(git rev-parse "$remote/$remote_branch")"

local behind

behind="$(git rev-list --count "$recorded_sha..$remote_head" 2>/dev/null || echo "?")"

echo " recorded: $recorded_sha"

echo " remote HEAD: $remote_head ($remote/$remote_branch)"

if [[ "$behind" == "0" ]]; then

echo " status: up to date"

else

echo " status: $behind commits behind — review with:"

echo " git log --oneline $recorded_sha..$remote/$remote_branch"

echo

}

opencode_sha="$(last_sha_after 'anomalyco/opencode → this repo')"

report_drift "anomalyco/opencode" "upstream" "dev" "$opencode_sha"

echo "Source of truth: UPSTREAM.md. Append a row when you pull."

browsercode/script/check-upstream.sh at main · binaco/browsercode · GitHub

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