# Builds a fully static pdftotext for `go build -tags bundled`, so the money
# binary can carry it rather than depend on poppler-utils on the host.
#
# Only what text extraction needs is compiled in. Fonts are never rendered, so
# fontconfig, cairo and the image codecs (JPEG, JPEG 2000, TIFF) are left out,
# as are colour management, HTTP and signature support. Freetype and zlib are
# the two dependencies poppler will not build without.
#
# Built against musl because glibc cannot be linked statically in any way that
# survives a different host.
#
# Run it through scripts/build-bundled.sh rather than by hand.

FROM docker.io/library/alpine:3.22 AS build

RUN apk add --no-cache build-base cmake samurai pkgconf \
	freetype-dev freetype-static zlib-dev zlib-static \
	libpng-dev libpng-static bzip2-static brotli-static

# Pinned by checksum: this binary ends up inside money, so the source it is
# built from must be exactly the one that was reviewed.
ARG POPPLER_VERSION=26.09.0
ARG POPPLER_SHA256=8059eadb6805340768f138c465b57f8164c92b4a0773c37ef031ea6c0d987b2e

WORKDIR /src
RUN wget -q "https://poppler.freedesktop.org/poppler-${POPPLER_VERSION}.tar.xz" \
	&& echo "${POPPLER_SHA256}  poppler-${POPPLER_VERSION}.tar.xz" | sha256sum -c - \
	&& tar xf "poppler-${POPPLER_VERSION}.tar.xz" --strip-components=1 \
	&& rm "poppler-${POPPLER_VERSION}.tar.xz"

# The find modules would otherwise settle on the shared libraries, and freetype's static
# archive does not carry its own dependencies (png, bzip2, brotli), so they are
# appended from what pkg-config says a static freetype needs.
RUN cmake -S . -B build -G Ninja \
		-DCMAKE_BUILD_TYPE=Release \
		-DBUILD_SHARED_LIBS=OFF \
		-DFREETYPE_LIBRARY_RELEASE=/usr/lib/libfreetype.a \
		-DPNG_LIBRARY_RELEASE=/usr/lib/libpng.a \
		-DZLIB_LIBRARY_RELEASE=/usr/lib/libz.a \
		-DCMAKE_EXE_LINKER_FLAGS=-static \
		-DCMAKE_CXX_STANDARD_LIBRARIES="$(pkg-config --static --libs freetype2)" \
		-DFONT_CONFIGURATION=generic \
		-DENABLE_UTILS=ON \
		-DENABLE_CPP=OFF \
		-DENABLE_GLIB=OFF \
		-DENABLE_GOBJECT_INTROSPECTION=OFF \
		-DENABLE_QT5=OFF \
		-DENABLE_QT6=OFF \
		-DENABLE_BOOST=OFF \
		-DENABLE_LIBOPENJPEG=OFF \
		-DENABLE_LIBJPEG=OFF \
		-DENABLE_LCMS=OFF \
		-DENABLE_LIBCURL=OFF \
		-DENABLE_LIBTIFF=OFF \
		-DENABLE_NSS3=OFF \
		-DENABLE_GPGME=OFF \
		-DENABLE_HARFBUZZ=OFF \
		-DBUILD_GTK_TESTS=OFF \
		-DBUILD_QT5_TESTS=OFF \
		-DBUILD_QT6_TESTS=OFF \
		-DBUILD_CPP_TESTS=OFF \
		-DBUILD_MANUAL_TESTS=OFF \
	&& cmake --build build --target pdftotext \
	&& strip build/utils/pdftotext \
	# Refuse to hand over anything that still wants a dynamic loader.
	&& ! readelf -l build/utils/pdftotext | grep -q INTERP \
	&& build/utils/pdftotext -v

FROM scratch
COPY --from=build /src/build/utils/pdftotext /pdftotext