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swaitsandClaude Opus 4.7 c70ab07c32 feat(mdbook): show spec version in overview body + page title
The first version cut (v0.1.0) revealed a real gap: nothing in the
rendered book identified which release the reader was on. The
version-picker chip says "version: v0.1.0" when you're on /v0.1.0/,
but it's a small UI affordance — and on /latest/ it can't say
"v0.1.0" because /latest/ is the rolling main build, not the v0.1.0
release.

Two complementary fixes, both visible without JS:

1. **Body marker.** Top of every chapter-0 (overview) page now reads
   `Spec version: <token>`. The token is `latest (main)` in src/, and
   gets frozen to the actual version (`v0.1.0`) when cut-version
   snapshots the directory. So /latest/ overview says "latest (main)"
   and /v0.1.0/ overview says "v0.1.0".

2. **Per-build page title.** scripts/build-site.sh now sets
   `MDBOOK_BOOK__TITLE` for each build:
     - latest → "MeshCore Protocol Specification — latest (main)"
     - vX.Y.Z → "MeshCore Protocol Specification — vX.Y.Z"
   The browser tab and mdBook sidebar header reflect the version.

`just cut-version` updated to run a one-line sed on the snapshot's
00-overview.md replacing the `latest (main)` marker. Defensive grep
warns if the marker isn't found (e.g., src/ was edited away from
the expected line).

versions/v0.1.0/00-overview.md regenerated by re-running
`just cut-version v0.1.0` after the marker landed in src/ — so the
v0.1.0 snapshot now self-identifies correctly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 10:22:59 -06:00

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#!/usr/bin/env sh
# Build the full multi-version site into ./_site/:
# - "latest" from ./src/
# - one subtree per ./versions/vX.Y.Z/ directory
#
# Each per-version build uses today's repo-root build infrastructure
# (book.toml, theme/, picker JS, scripts/), only swapping in the
# frozen content directory via MDBOOK_BOOK__SRC. This means every
# deploy gives every published version the current theme — site
# improvements never need backporting to old snapshots.
#
# Emits _site/versions.json (newest first; consumed by
# theme/version-picker.js) and _site/index.html (redirect to /latest/).
#
# Cut a new frozen version with `just cut-version vX.Y.Z`, which
# snapshots ./src/ into ./versions/vX.Y.Z/.
set -eu
SITE_BASE="${SITE_BASE:-/meshcore-spec}"
WORKSPACE="$(pwd)"
SITE_DIR="$WORKSPACE/_site"
group() { printf '::group::%s\n' "$1"; }
endgroup() { printf '::endgroup::\n'; }
warn() { printf '::warning::%s\n' "$1"; }
rm -rf "$SITE_DIR"
mkdir -p "$SITE_DIR"
# ---- latest (from src/) ----
group "build latest"
MDBOOK_BOOK__TITLE="MeshCore Protocol Specification — latest (main)" \
MDBOOK_OUTPUT__HTML__SITE_URL="${SITE_BASE}/latest/" \
mdbook build "$WORKSPACE" -d "$SITE_DIR/latest"
endgroup
# ---- frozen versions (./versions/v*) ----
# Discover and sort by semver (newest first). The list is captured
# into a variable so we can iterate it twice — once to build, once to
# emit versions.json — without re-scanning.
list_versions() {
for d in versions/v*; do
[ -d "$d" ] || continue
basename "$d"
done | sort -V -r
}
VERSION_DIRS="$(list_versions)"
for version in $VERSION_DIRS; do
vdir="versions/$version"
[ -d "$vdir" ] || continue
group "build $version"
if ! MDBOOK_BOOK__SRC="$vdir" \
MDBOOK_BOOK__TITLE="MeshCore Protocol Specification — ${version}" \
MDBOOK_OUTPUT__HTML__SITE_URL="${SITE_BASE}/${version}/" \
mdbook build "$WORKSPACE" -d "$SITE_DIR/${version}"; then
warn "mdbook build failed for ${version}; skipping"
rm -rf "${SITE_DIR:?}/${version:?}"
fi
endgroup
done
# ---- versions.json (consumed by theme/version-picker.js) ----
# "latest" always first; then each successfully-built frozen version.
{
printf '['
printf '"latest"'
for version in $VERSION_DIRS; do
[ -d "$SITE_DIR/$version" ] || continue
printf ',"%s"' "$version"
done
printf ']\n'
} > "$SITE_DIR/versions.json"
echo "versions.json:"
cat "$SITE_DIR/versions.json"
# ---- root redirect to /latest/ ----
cat > "$SITE_DIR/index.html" <<'HTML'
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="refresh" content="0; url=./latest/">
<link rel="canonical" href="./latest/">
<title>MeshCore Protocol Specification</title>
</head>
<body>
<p>Redirecting to the <a href="./latest/">latest version</a>&hellip;</p>
</body>
</html>
HTML