ZDDC/browse/build.sh
ZDDC 141fef88fb feat(browse): "Download (zip)" — pull the current directory's subtree as a zip
A "⤓ Download (zip)" button in the browse toolbar (shown once a
directory is loaded) downloads the directory you're currently
viewing — and everything under it you're allowed to see — as a single
.zip. Navigate into a subfolder first to grab just that subtree.

- Server mode: an <a download> at "<currentPath>?zip=1" — zddc-server
  streams the ACL-filtered zip (see the previous commit), nothing held
  in the browser.
- Offline (file://) mode: new browse/js/download.js walks the picked
  folder with the FS-Access API in two passes — metadata first (so it
  can confirm() before loading >~2000 files / ~500 MB into memory),
  then bytes — bundles with the already-vendored JSZip, and triggers a
  blob download. Hidden entries (".":/"_"-prefixed) are skipped, the
  zip's top level is "<folderName>/…" so it unpacks tidily, and the
  status bar shows progress.

Wired in browse/js/events.js (button click + show/hide alongside the
refresh button); concatenated into browse/build.sh; ARCHITECTURE.md +
AGENTS.md note the ?zip=1 endpoint and the button.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 13:04:04 -05:00

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#!/bin/sh
set -eu
root_dir=$(cd "$(dirname "$0")" && pwd)
. "$root_dir/../shared/build-lib.sh"
src_html="$root_dir/template.html"
output_dir="$root_dir/dist"
output_html="$output_dir/browse.html"
mkdir -p "$output_dir"
ensure_exists "$src_html"
css_temp=$(mktemp)
js_raw=$(mktemp)
js_temp=$(mktemp)
cleanup() { rm -f "$css_temp" "$js_raw" "$js_temp"; }
trap cleanup EXIT
# CSS files: shared base first, then browse-specific. Toast UI's CSS
# is bundled because the markdown plugin uses Toast UI inside the
# preview pane (.md files render as a full editor).
concat_files \
"../shared/fonts.css" \
"../shared/base.css" \
"../shared/toast.css" \
"../shared/nav.css" \
"../shared/logo.css" \
"../shared/vendor/toastui-editor.min.css" \
"css/base.css" \
"css/tree.css" \
> "$css_temp"
# JS files: shared canonical helpers, then browse modules.
# init.js must come first so window.app exists when later modules
# attach to it. JSZip is vendored (rather than CDN-loaded) so ZIP
# expansion in the tree works under restrictive networks / CSPs and
# without an external HTTP dependency.
concat_files \
"../shared/vendor/jszip.min.js" \
"../shared/vendor/utif.min.js" \
"../shared/vendor/toastui-editor-all.min.js" \
"../shared/zddc.js" \
"../shared/zddc-filter.js" \
"../shared/zip-source.js" \
"../shared/theme.js" \
"../shared/toast.js" \
"../shared/nav.js" \
"../shared/logo.js" \
"../shared/help.js" \
"../shared/preview-lib.js" \
"js/init.js" \
"js/loader.js" \
"js/tree.js" \
"js/preview.js" \
"js/preview-markdown.js" \
"js/grid.js" \
"js/upload.js" \
"js/download.js" \
"js/events.js" \
"js/app.js" \
> "$js_raw"
# Escape any literal `</` inside JS string/template literals so the
# inlined <script> block doesn't get terminated prematurely.
escape_js_close_tags "$js_raw" "$js_temp"
tool=browse
compute_build_label "$tool" "$@"
# Replace template placeholders with concatenated CSS/JS + label.
# Non-stable build labels (alpha/beta/dev-dirty) are wrapped in a red
# span — same convention as every other tool (compute_build_label
# sets $is_red=1 for non-stable cuts). Keeps the visual cue
# consistent across tool headers.
awk -v css_file="$css_temp" -v js_file="$js_temp" \
-v build_label="$build_label" -v is_red="$is_red" \
-v favicon="$favicon_data_uri" '
/\{\{CSS_PLACEHOLDER\}\}/ {
while ((getline line < css_file) > 0) print line
close(css_file); next
}
/\{\{JS_PLACEHOLDER\}\}/ {
while ((getline line < js_file) > 0) print line
close(js_file); next
}
/\{\{BUILD_LABEL\}\}/ {
if (is_red == "1") {
gsub(/\{\{BUILD_LABEL\}\}/, "<span style=\"color:red;font-weight:bold\">" build_label "</span>")
} else {
gsub(/\{\{BUILD_LABEL\}\}/, build_label)
}
print; next
}
{
gsub(/\{\{FAVICON\}\}/, favicon)
print
}
' "$src_html" > "$output_html"
echo "Wrote $output_html"
# Promote AFTER the dist file exists so promote_release can copy from
# $output_html. (The order matters — _promote_stable does cp $output_html ...)
promote_release "$tool"