feat: Create the mender-setup CLI tool

This strips out the `setup` functionality from the regular mender-client, and
ports it here, to be a free-standing tool.

In order to do so, I was forced to do a small refac of the mender-client, to
split out the mender-config, to hinder it from pulling in a lot of dependencies.

This ports contains a basic CLI, as well as the `setup.go` file, and a simple
ported `setup_test.go` port.

`deb-requirements` and `support/demo.crt` was added for test compatibility.

Ticket: MEN-6452
Changelog: None

Signed-off-by: Ole Petter <ole.orhagen@northern.tech>

LIC_FILES_CHKSUM.sha256

@@ -1,2 +1,22 @@
 # Apache 2.0 licenses.
 52b2497ce07650b825015e80ca7a5d40c360c04c530234ca6d950b0f98bca23a  LICENSE
+52b2497ce07650b825015e80ca7a5d40c360c04c530234ca6d950b0f98bca23a  vendor/github.com/mendersoftware/mender/LICENSE
+
+# BSD-3
+2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  vendor/golang.org/x/sys/LICENSE
+2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  vendor/golang.org/x/term/LICENSE
+8d427fd87bc9579ea368fde3d49f9ca22eac857f91a9dec7e3004bdfab7dee86  vendor/github.com/pkg/errors/LICENSE
+2eb550be6801c1ea434feba53bf6d12e7c71c90253e0a9de4a4f46cf88b56477  vendor/github.com/pmezard/go-difflib/LICENSE
+
+# MIT
+a55959c4e3e8917bfa857359bb641115336276a6cc97408fd8197e079fb18470  vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md
+da277af11b85227490377fbcac6afccc68be560c4fff36ac05ca62de55345fd7  vendor/github.com/urfave/cli/v2/LICENSE
+51a0c9ec7f8b7634181b8d4c03e5b5d204ac21d6e72f46c313973424664b2e6b  vendor/github.com/sirupsen/logrus/LICENSE
+f8e536c1c7b695810427095dc85f5f80d44ff7c10535e8a9486cf393e2599189  vendor/github.com/stretchr/testify/LICENSE
+d18f6323b71b0b768bb5e9616e36da390fbd39369a81807cca352de4e4e6aa0b  vendor/gopkg.in/yaml.v3/LICENSE
+
+# Simplified BSD
+75e1ca97a84a9da6051dee0114333388216f2c4a5a028296b882ff3d57274735  vendor/github.com/russross/blackfriday/v2/LICENSE.txt
+
+# ISC License
+1b93a317849ee09d3d7e4f1d20c2b78ddb230b4becb12d7c224c927b9d470251  vendor/github.com/davecgh/go-spew/LICENSE

Makefile

@@ -12,19 +12,24 @@ PKGFILES_notest = $(shell echo $(PKGFILES) | tr ' ' '\n' | grep -v '_test.go' )
 VERSION = $(shell git describe --tags --dirty --exact-match 2>/dev/null || git rev-parse --short HEAD)
 
 GO_LDFLAGS = \
-	-ldflags "-X github.com/mendersoftware/mender-setup/config.Version=$(VERSION)"
+	-ldflags "-X github.com/mendersoftware/mender-setup/conf.Version=$(VERSION)"
 
 ifeq ($(V),1)
 BUILDV = -v
 endif
 
+TAGS =
+ifneq ($(TAGS),)
+BUILDTAGS = -tags '$(TAGS)'
+endif
+
 build: mender-setup
 
 clean:
 	@$(GO) clean
 
 mender-setup: $(PKGFILES)
-	@$(GO) build $(GO_LDFLAGS) $(BUILDV)
+	@$(GO) build $(GO_LDFLAGS) $(BUILDV) $(BUILDTAGS)
 
 install: install-bin