Use Go modules instead of Go dep

.gitignore

@@ -4,6 +4,7 @@
 /.vscode
 /cmd/konnectd/debug
 /test/tests.*
+/test/coverage.*
 /golint.txt
 /govet.txt
 /dist

.golangci.yaml

@@ -0,0 +1,74 @@
+run:
+  modules-download-mode: vendor
+
+linters-settings:
+  govet:
+    check-shadowing: true
+    settings:
+      printf:
+        funcs:
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Infof
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
+          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf
+  golint:
+    min-confidence: 0
+  gocyclo:
+    min-complexity: 10
+  maligned:
+    suggest-new: true
+  dupl:
+    threshold: 100
+  goconst:
+    min-len: 2
+    min-occurrences: 2
+  misspell:
+    locale: US
+  lll:
+    line-length: 140
+  goimports:
+    local-prefixes: stash.kopano.io/kc/kapi
+  gocritic:
+    enabled-tags:
+      - performance
+      - style
+      - experimental
+
+linters:
+  # inverted configuration with `enable-all` and `disable` is not scalable during updates of golangci-lint
+  disable-all: true
+  enable:
+    - bodyclose
+    - deadcode
+    - dupl
+    - errcheck
+    - funlen
+    - gochecknoinits
+    - goconst
+    - gocritic
+    - gocyclo
+    - gofmt
+    - goimports
+    - golint
+    - gosec
+    - gosimple
+    - govet
+    - ineffassign
+    - interfacer
+    - lll
+    - misspell
+    - nakedret
+    - scopelint
+    - staticcheck
+    - structcheck
+    - stylecheck
+    - typecheck
+    - unconvert
+    - unparam
+    - unused
+    - varcheck
+
+  # don't enable:
+  # - depguard - until https://github.com/OpenPeeDeeP/depguard/issues/7 gets fixed
+  # - maligned,prealloc
+  # - gochecknoglobals

.license-ranger.json

@@ -1,4 +1,4 @@
 {
-	"mode": "dep",
+	"mode": "mod",
 	"header": "# Kopano Konnect 3rd party licenses\n\nCopyright 2019 Kopano and its licensors. See LICENSE.txt for license information. This document contains a list of open source components used in this project.\n\n## Konnect konnectd\n"
 }

Dockerfile.build

@@ -0,0 +1,59 @@
+#
+# Copyright 2019 Kopano and its licensors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License, version 3 or
+# later, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+FROM golang:1.13.4-buster
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+ARG GOLANGCI_LINT_TAG=v1.21.0
+RUN curl -sfL \
+	https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | \
+	sh -s -- -b /usr/local/bin ${GOLANGCI_LINT_TAG}
+
+RUN GOBIN=/usr/local/bin go get -v \
+	github.com/tebeka/go2xunit \
+	github.com/axw/gocov/... \
+	github.com/AlekSi/gocov-xml \
+	github.com/wadey/gocovmerge \
+	&& go clean -cache && rm -rf /root/go
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update \
+	&& apt-get install -y --no-install-recommends \
+		build-essential \
+		gettext-base \
+		imagemagick \
+		python-scour \
+		nodejs \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/*
+
+RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
+RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
+RUN apt-get update \
+	&& apt-get install -y --no-install-recommends \
+		yarn \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/*
+
+WORKDIR /build
+
+ENV GOCACHE=/tmp/go-build
+ENV GOPATH=""
+ENV HOME=/tmp
+
+CMD ["make", "DATE=reproducible"]