Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

scripts/build-mupdf.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Builds the pinned MuPDF, with patches/mupdf, into engines/mupdf-build.
+set -euo pipefail
+
+root=$(cd "$(dirname "$0")/.." && pwd)
+src=$root/engines/mupdf-src
+out=$root/engines/mupdf-build
+jobs=$(sysctl -n hw.ncpu 2>/dev/null || nproc)
+
+# reference/ stays read-only; the copy takes the patches.
+mkdir -p "$src"
+rsync -a --delete --exclude .git "$root/reference/mupdf/" "$src/"
+for patch in "$root"/patches/mupdf/*.patch; do
+  patch -d "$src" -p1 --forward --batch --quiet <"$patch"
+done
+flags="build=release HAVE_X11=no HAVE_GLUT=no HAVE_CURL=no HAVE_LIBCRYPTO=yes tesseract=yes"
+# make does not track flags; a change rebuilds all.
+if [ "$(cat "$out/.flags" 2>/dev/null)" != "$flags" ]; then
+  rm -rf "$out"
+fi
+# shellcheck disable=SC2086
+make -C "$src" OUT="$out" $flags -j"$jobs" libs "$out/libmupdf-pkcs7.a"
+echo "$flags" >"$out/.flags"