docker/install: build Tesseract from source

.circleci/config.yml

@@ -6,34 +6,56 @@ orbs:
 
 jobs:
 
-  build-python:
+  test-python:
     parameters:
       python-version:
         type: string
     docker:
       - image: cimg/python:<< parameters.python-version >>
+    environment:
+      # cimg/python uses pyenv instead of venv
+      VIRTUAL_ENV: ${PYENV_ROOT}
     steps:
       - checkout
+      - run: git submodule sync && git submodule update --init
       - run: sudo make deps-ubuntu
-      - when:
-          condition:
-            equal: [ '3.6', << parameters.python-version >> ]
-          steps:
-            # speed-up build time for end-of-life Python by holding at latest binary:
-            - run: pip install --prefer-binary -U opencv-python-headless numpy
+      - run: make install-tesseract
+      - run: make install-tesserocr
       - run: make install
-      # PPA tessdata prefix (= ocrd_tesserocr moduledir) is owned by root
-      - run: sudo chmod go+w `dpkg-query -L tesseract-ocr-eng | sed -n s,/eng.traineddata,,p`
+      - run: ocrd resmgr download ocrd-tesserocr-recognize eng.traineddata
+      - run: ocrd resmgr download ocrd-tesserocr-recognize osd.traineddata
       - run: ocrd resmgr download ocrd-tesserocr-recognize deu.traineddata
       - run: ocrd resmgr download ocrd-tesserocr-recognize Fraktur.traineddata
       - run: make test-cli
       - run: make coverage
       - codecov/upload
 
+  deploy-docker:
+    docker:
+      - image: circleci/buildpack-deps:stretch
+    environment:
+      DOCKER_TAG: ocrd/tesserocr
+    steps:
+      - checkout
+      - setup_remote_docker: # https://circleci.com/docs/2.0/building-docker-images/
+          docker_layer_caching: true
+      - run: make docker DOCKER_TAG=$DOCKER_TAG
+      - run:
+          name: Login to Docker Hub
+          command: echo "$DOCKERHUB_PASS" | docker login --username "$DOCKERHUB_USER" --password-stdin
+      - run: docker push $DOCKER_TAG
+
+
 workflows:
   build:
     jobs:
-      - build-python:
+      - test-python:
           matrix:
             parameters:
-              python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+              python-version: ['3.7', '3.8', '3.9', '3.10']
+  deploy:
+    jobs:
+      - deploy-docker:
+          filters:
+            branches:
+              only: master

.dockerignore

@@ -5,6 +5,8 @@
 !requirements_test.txt
 !LICENSE
 !README.md
+!repo/tesserocr
+!repo/tesseract
 
 # avoid .git and __pycache__ etc:
 !ocrd_tesserocr/**/*.py

.gitignore

@@ -13,3 +13,4 @@ test-workspace
 /.coverage
 /htmlcov
 /.cache
+build_tesseract

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "repo/tesserocr"]
+	path = repo/tesserocr
+	url = https://github.com/sirfz/tesserocr/
+[submodule "repo/tesseract"]
+	path = repo/tesseract
+	url = https://github.com/tesseract-ocr/tesseract

Dockerfile

@@ -1,4 +1,8 @@
-FROM ocrd/core
+FROM ocrd/core:v2.62.0 AS base
+# set proper locales
+ENV LANG C.UTF-8
+ENV LC_ALL C.UTF-8
+# install ocrd-tesserocr (until here commands for installing tesseract-ocr)
 ARG VCS_REF
 ARG BUILD_DATE
 LABEL \
@@ -7,32 +11,58 @@ LABEL \
     org.label-schema.vcs-url="https://github.com/OCR-D/ocrd_tesserocr" \
     org.label-schema.build-date=$BUILD_DATE
 
-ENV DEBIAN_FRONTEND noninteractive
 ENV PYTHONIOENCODING utf8
 
+# set frontend non-interactive to silence interactive tzdata config
+ARG DEBIAN_FRONTEND=noninteractive
+
+# set proper date and timezone in container
+RUN echo "Europe/Berlin" > /etc/timezone
+RUN ln -sf /usr/share/zoneinfo/Europe/Berlin /etc/localtime
+RUN dpkg-reconfigure -f noninteractive tzdata
+
+# diagnostic output - check timezone settings
+# RUN cat /etc/timezone
+
 # avoid HOME/.local/share (hard to predict USER here)
 # so let XDG_DATA_HOME coincide with fixed system location
 # (can still be overridden by derived stages)
 ENV XDG_DATA_HOME /usr/local/share
+ENV XDG_CONFIG_HOME /usr/local/share/ocrd-resources
+ENV TESSDATA_PREFIX $XDG_DATA_HOME/tessdata
 
-WORKDIR /build-ocrd
+WORKDIR /build
 COPY setup.py .
 COPY ocrd_tesserocr/ocrd-tool.json .
 COPY README.md .
 COPY requirements.txt .
 COPY requirements_test.txt .
 COPY ocrd_tesserocr ./ocrd_tesserocr
+COPY repo/tesserocr ./repo/tesserocr
+COPY repo/tesseract ./repo/tesseract
 COPY Makefile .
-RUN make deps-ubuntu && \
-    apt-get install -y --no-install-recommends \
-    g++ \
-    && make deps install \
-    && rm -rf /build-ocrd \
+RUN make deps-ubuntu deps install-tesseract install-tesseract-training install-tesserocr install \
+    && rm -rf /build \
     && apt-get -y remove --auto-remove g++ libtesseract-dev make
-# PPA tessdata prefix (= ocrd_tesserocr moduledir) is owned by root
-RUN sudo chmod go+w `dpkg-query -L tesseract-ocr-eng | sed -n s,/eng.traineddata,,p`
+
 RUN ocrd resmgr download ocrd-tesserocr-recognize Fraktur.traineddata
 RUN ocrd resmgr download ocrd-tesserocr-recognize deu.traineddata
+RUN ocrd resmgr download ocrd-tesserocr-recognize eng.traineddata
+RUN ocrd resmgr download ocrd-tesserocr-recognize equ.traineddata
+RUN ocrd resmgr download ocrd-tesserocr-recognize osd.traineddata
+
+# as discussed in ocrd_all#378, we do not want to manage more than one resource location
+# to mount for model persistence; 
+# with named volumes, the preinstalled models will be copied to the host and complemented
+# by downloaded models; 
+# tessdata is the only problematic module location
+RUN mkdir -p $XDG_CONFIG_HOME
+RUN mv $TESSDATA_PREFIX $XDG_CONFIG_HOME/ocrd-tesserocr-recognize
+RUN ln -s $XDG_CONFIG_HOME/ocrd-tesserocr-recognize $TESSDATA_PREFIX
+# finally, alias/symlink all ocrd-resources to /models for shorter mount commands
+RUN mv $XDG_CONFIG_HOME /models && ln -s /models $XDG_CONFIG_HOME
+
 
+# finally, alias/symlink all ocrd-resources to /models for shorter mount commands
 WORKDIR /data
 VOLUME /data

Makefile

@@ -7,67 +7,82 @@ LOG_LEVEL = INFO
 PYTHONIOENCODING=utf8
 LC_ALL = C.UTF-8
 LANG = C.UTF-8
-export
+ifdef VIRTUAL_ENV
+	TESSERACT_PREFIX = $(VIRTUAL_ENV)
+else
+	TESSERACT_PREFIX = /usr/local
+endif
+
+ifeq ($(PKG_CONFIG_PATH),)
+PKG_CONFIG_PATH := $(TESSERACT_PREFIX)/lib/pkgconfig
+else
+PKG_CONFIG_PATH := $(TESSERACT_PREFIX)/lib/pkgconfig:$(PKG_CONFIG_PATH)
+endif
+export PKG_CONFIG_PATH
 
+export
 
 # pytest args. Set to '-s' to see log output during test execution, '--verbose' to see individual tests. Default: '$(PYTEST_ARGS)'
 PYTEST_ARGS =
 
 # Docker container tag
 DOCKER_TAG = 'ocrd/tesserocr'
 
-# BEGIN-EVAL makefile-parser --make-help Makefile
-
 help:
 	@echo ""
 	@echo "  Targets"
 	@echo ""
-	@echo "    deps-ubuntu   Dependencies for deployment in an ubuntu/debian linux"
-	@echo "                  (lib*-dev merely for building tesserocr with pip)"
-	@echo "                  (tesseract-ocr: Ubuntu 18.04 now ships 4.0.0,"
-	@echo "                   which is unsupported. Add the tesseract-ocr PPA"
-	@echo "                   from Alexander Pozdnyakov which provides 4.1.0."
-	@echo "                   See https://launchpad.net/~alex-p/+archive/ubuntu/tesseract-ocr"
-	@echo "                   for details.)"
-	@echo "    deps          Install Python deps for install via pip"
-	@echo "    deps-test     Install Python deps for test via pip"
-	@echo "    docker        Build docker image"
-	@echo "    install       Install this package"
-	@echo "    test          Run unit tests"
-	@echo "    coverage      Run unit tests and determine test coverage"
-	@echo "    test-cli      Test the command line tools"
-	@echo "    test/assets   Setup test assets"
-	@echo "    repo/assets   Clone OCR-D/assets to ./repo/assets"
-	@echo "    assets-clean  Remove symlinks in test/assets"
+	@echo "    deps-ubuntu       Install system dependencies in an Ubuntu/Debian Linux"
+	@echo "    install-tesseract Compile and install Tesseract"
+	@echo "    install-tesseract-training Compile and install training utilities for Tesseract"
+	@echo "    install-tesserocr Compile and install Tesserocr"
+	@echo "    deps              Install Python dependencies for install via pip"
+	@echo "    install           Install this package via pip"
+	@echo "    deps-test         Install Python deps for test via pip"
+	@echo "    test              Run unit tests"
+	@echo "    coverage          Run unit tests and determine test coverage"
+	@echo "    test-cli          Test the command line tools"
+	@echo "    test/assets       Setup test assets"
+	@echo "    repo/assets       Clone OCR-D/assets to ./repo/assets"
+	@echo "    repo/tesseract    Checkout Tesseract ./repo/tesseract"
+	@echo "    repo/tesserocr    Checkout Tesserocr to ./repo/tesserocr"
+	@echo "    docker            Build docker image"
+	@echo "    assets-clean      Remove symlinks in test/assets"
 	@echo ""
 	@echo "  Variables"
 	@echo ""
-	@echo "    PYTEST_ARGS     pytest args. Set to '-s' to see log output during test execution, '--verbose' to see individual tests. Default: '$(PYTEST_ARGS)'"
-	@echo "    DOCKER_TAG      Docker container tag"
-	@echo "    TESSDATA_PREFIX search path for recognition models (overriding Tesseract compile-time default)"
-
-# END-EVAL
-
-# Dependencies for deployment in an ubuntu/debian linux
-# (lib*-dev merely for building tesserocr with pip)
-# (tesseract-ocr: Ubuntu 18.04 now ships 4.0.0,
-#  which is unsupported. Add the tesseract-ocr PPA
-#  from Alexander Pozdnyakov which provides 4.1.0.
-#  See https://launchpad.net/~alex-p/+archive/ubuntu/tesseract-ocr
-#  for details.)
+	@echo "    PYTEST_ARGS     pytest args. Set to '-s' to see log output during test execution, '--verbose' to see individual tests. [$(PYTEST_ARGS)]"
+	@echo "    DOCKER_TAG      Docker container tag [$(DOCKER_TAG)]"
+	@echo "    TESSDATA_PREFIX search path for recognition models (overriding Tesseract compile-time default) [$(TESSDATA_PREFIX)]"
+
+# Dependencies for deployment in an Ubuntu/Debian Linux
+# (lib*-dev merely for building Tesseract and tesserocr from sources)
 deps-ubuntu:
-	apt-get install -y --no-install-recommends software-properties-common
-	-add-apt-repository -u -y ppa:alex-p/tesseract-ocr
-	apt-get install -y \
+	apt-get update && apt-get install -y --no-install-recommends \
+		apt-utils \
+		build-essential \
 		g++ \
 		git \
 		python3 \
 		python3-pip \
-		libtesseract-dev \
+		libjpeg-dev \
+		libgif-dev \
+		libwebp-dev \
+		libopenjp2-7-dev \
+		libpng-dev \
+		libtiff-dev \
+		libtool \
+		pkg-config \
+		tzdata \
+		xzgv \
+		zlib1g-dev \
 		libleptonica-dev \
-		tesseract-ocr-eng \
-		tesseract-ocr-script-frak \
-		tesseract-ocr
+		libpango1.0-dev \
+		libicu-dev \
+		autotools-dev \
+		automake \
+		libcurl4-nss-dev \
+		libarchive-dev
 
 # Install Python deps for install via pip
 deps:
@@ -85,6 +100,35 @@ docker:
 	--build-arg BUILD_DATE=$$(date -u +"%Y-%m-%dT%H:%M:%SZ") \
 	-t $(DOCKER_TAG) .
 
+install-tesserocr: repo/tesserocr
+	$(PIP) install ./$<
+
+install-tesseract: $(TESSERACT_PREFIX)/bin/tesseract
+
+install-tesseract-training: $(TESSERACT_PREFIX)/bin/lstmtraining
+
+$(TESSERACT_PREFIX)/bin/tesseract: build_tesseract/Makefile
+	$(MAKE) -C build_tesseract install
+	if [[ "$(TESSERACT_PREFIX)" = "/usr"* ]]; then ldconfig; fi
+
+$(TESSERACT_PREFIX)/bin/lstmtraining: build_tesseract/Makefile
+	$(MAKE) -C build_tesseract training-install
+
+build_tesseract/Makefile: repo/tesseract/Makefile.in
+	mkdir -p $(@D)
+	cd $(@D) && $(CURDIR)/repo/tesseract/configure \
+				--prefix=$(TESSERACT_PREFIX) \
+				--disable-openmp \
+				--disable-shared \
+				'CXXFLAGS=-g -O2 -fno-math-errno -Wall -Wextra -Wpedantic -fPIC'
+
+repo/tesseract/Makefile.in: repo/tesseract
+	cd $<; ./autogen.sh
+
+repo/tesserocr repo/tesseract:
+	git submodule sync $@
+	git submodule update --init $@
+
 # Install this package
 install: deps
 	$(PIP) install .
@@ -135,6 +179,12 @@ repo/assets:
 	mkdir -p $(dir $@)
 	git clone https://github.com/OCR-D/assets "$@"
 
+.PHONY: clean
+clean: assets-clean tesseract-clean
+
+tesseract-clean:
+	rm -rf $(CURDIR)/build_tesseract
+	cd repo/tesseract; make distclean
 
 .PHONY: assets-clean
 # Remove symlinks in test/assets