Initial working version.

.dockerignore

@@ -0,0 +1,21 @@
+# Docker build instructions.
+Dockerfile
+.dockerignore
+
+# Revision control.
+.git/
+**/.gitignore
+
+# Vim files.
+tags
+**/*.sw[po]
+
+# Build tools in base image.
+./rebar3
+
+# Local build artifacts.
+./_build
+.virtualenv
+log
+logs
+test/.rebar3

.gitignore

@@ -1,10 +1,26 @@
-.eunit
-deps
-*.o
 *.beam
+*.o
 *.plt
+.erlang.cookie
+.idea
+_build
+ebin
 erl_crash.dump
-ebin/*.beam
-rel/example_project
-.concrete/DEV_MODE
-.rebar
+log
+logs
+rebar3.crashdump
+.rebar3
+
+# CI secrets.
+codeship.aes
+deploy/dockercfg.json
+deploy/env.env
+config/test.config
+
+# Optional python dependencies.
+.virtualenv
+
+# Vim files.
+*.swo
+*.swp
+tags

.yamllint

@@ -0,0 +1,4 @@
+ignore: |
+  /_build
+  /.virtualenv
+  /docker/.volumes

Dockerfile

@@ -0,0 +1,17 @@
+FROM erlang:21.2
+
+# Install build and test dependencies.
+# python3-pip: for installing python build dependencies.
+RUN set -xe && apt-get update && apt-get install -y python3-pip
+
+ENV REBAR="rebar3"
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+
+COPY ./requirements.txt ./
+RUN pip3 install -r requirements.txt
+
+COPY . ./
+RUN make compile
+
+ENTRYPOINT ["make"]

LICENSE.txt

@@ -0,0 +1,191 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2018, John Krukoff <john@krukoff.us>.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+

Makefile

@@ -0,0 +1,91 @@
+MAKEFLAGS += --warn-undefined-variables
+.DEFAULT_GOAL := all
+
+PYTHON := python3
+REBAR ?= ./rebar3
+
+.PHONY: all
+## Build everything.
+all: test-unit doc
+	${MAKE} compile
+
+.PHONY: clean
+## Delete intermediate files.
+clean:
+	${REBAR} clean -a
+
+.PHONY: compile
+## Compile all profiles.
+compile:
+	${REBAR} compile
+	${REBAR} as test compile
+
+.PHONY: doc
+## Build documentation.
+doc: require-pic2plot $(addsuffix .png,$(basename $(wildcard doc/*.pic)))
+	${REBAR} edoc
+	${REBAR} as markdown edoc
+
+doc/%.png: doc/%.pic
+	pic2plot --font-size=0.010 --bitmap-size=4096x4096 --line-width=0.00097656 -Tpng $< > $@
+
+.SILENT: help
+.PHONY: help
+## This help screen.
+help:
+	# Extracts help from the Makefile itself, printing help for any rule
+	# which matches the defined regular expression and that has a double
+	# hash (##) comment on the line above.
+	printf "Available Targets:\n\n"
+	awk '/^[a-zA-Z\-\_0-9]+:/ { \
+		helpMessage = match(lastLine, /^## (.*)/); \
+		if (helpMessage) { \
+			helpCommand = substr($$1, 0, index($$1, ":")); \
+			helpMessage = substr(lastLine, RSTART + 3, RLENGTH); \
+			printf "%-18s %s\n", helpCommand, helpMessage; \
+		} \
+	} \
+	{ lastLine = $$0 }' ${MAKEFILE_LIST}
+
+rebar.lock: rebar.config
+	${REBAR} update
+	${REBAR} unlock
+	${REBAR} upgrade
+
+REQUIREMENTS = $(addprefix require-,pic2plot yamllint virtualenv)
+
+.PHONY: ${REQUIREMENTS}
+${REQUIREMENTS}: what=$(patsubst require-%,%,$@)
+${REQUIREMENTS}: require-%:
+	@which $(what) > /dev/null || \
+		(printf "%s%s%s\n" "$$(tput setaf 3)" '"$(what)" is required, please install.' "$$(tput sgr0)"; exit 1)
+
+rebar3:
+	curl -o rebar3 https://s3.amazonaws.com/rebar3/rebar3
+	chmod 755 rebar3
+
+.PHONY: test
+## Run all test suites.
+test: test-unit test-integration
+
+.PHONY: test-integration
+## Run the integration test suite.
+test-integration:
+	envsubst < config/test.config.template > config/test.config
+	if ! ${REBAR} as test do ct --config=config/test.config; then \
+		grep -lr 'CT Error Notification' _build/test/logs/ | xargs -n 1 html2text; \
+	fi
+
+.PHONY: test-unit
+## Run the unit test suite.
+test-unit: require-yamllint
+	${REBAR} as prod dialyzer
+	${REBAR} as test do dialyzer, eunit, proper, geas #, lint
+	yamllint -s .
+
+.virtualenv: requirements.txt
+	${MAKE} require-virtualenv
+	virtualenv --clear --download --always-copy -p "$$(which ${PYTHON})" .virtualenv
+	.virtualenv/bin/pip install --force-reinstall --upgrade pip setuptools wheel
+	.virtualenv/bin/pip install -r requirements.txt
+	@printf "\n\n%s%s%s\n" "$$(tput setaf 3)" "To activate virtualenv run: source .virtualenv/bin/activate" "$$(tput sgr0)"

doc/overview.edoc

@@ -0,0 +1,6 @@
+@author John Krukoff <github@cultist.org>
+@copyright 2019 John Krukoff
+@version 1.0.0
+@title pipe_line
+@doc <h3>Overview</h3>
+@end

docker-compose.yml

@@ -0,0 +1,10 @@
+---
+version: "3"
+
+services:
+
+  test:
+    build:
+      context: .
+    container_name: partial
+    command: test-unit