Invert tag for inclusion of CV functionality

Prior to this change, CV was included by default, however, this
doesn't seem appropriate given that this functionality is rarely
used. For that reason, the meaning of the nocv tag has been
inverted i.e. it is now called withcv, and it the tag must be
included to build CV components.

.circleci/config.yml

@@ -23,9 +23,9 @@ jobs:
 
       - run: go get -d -t -v ./...
 
-      - run: go build -v -tags nocv ./...
+      - run: go build -v ./...
 
-      - run: go test -v -tags nocv ./...
+      - run: go test -v ./...
 
       - save_cache:
           key: v1-pkg-cache

cmd/rv/probe.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION

cmd/rv/probe_circleci.go

@@ -1,5 +1,5 @@
-//go:build nocv
+//go:build !withcv
-// +build nocv
+// +build !withcv
 
 /*
 DESCRIPTION

exp/gocv-exp/main.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 // What it does:
 //

filter/debug.go

@@ -1,4 +1,5 @@
-// +build debug,!nocv
+//go:build debug && withcv
+// +build debug,withcv
 
 /*
 DESCRIPTION

filter/diff.go

@@ -1,4 +1,5 @@
-// +build !nocv
+//go:build withcv
+// +build withcv
 
 /*
 DESCRIPTION

filter/filters_circleci.go

@@ -1,4 +1,5 @@
-// +build nocv
+//go:build !withcv
+// +build !withcv
 
 /*
 DESCRIPTION

filter/knn.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION

filter/mog.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION

filter/motion.go

@@ -1,4 +1,5 @@
-// +build !nocv
+//go:build withcv
+// +build withcv
 
 /*
 DESCRIPTION

filter/release.go

@@ -1,4 +1,5 @@
-// +build !debug,!nocv
+//go:build debug && withcv
+// +build debug,withcv
 
 /*
 DESCRIPTION

init/Makefile

@@ -25,7 +25,7 @@ endif
 
 rebuild:
 	chmod +x run.sh
-	cd ../cmd/$(BIN_NAME); go build -tags nocv
+	cd ../cmd/$(BIN_NAME); go build -tags withcv
 
 install: as_root make_dirs soft_copy_files rebuild syncreboot
 	@echo "Install complete"

revid/README.md

@@ -13,7 +13,7 @@ Sending is handled by "senders", defined in the senders.go file.
 
 Building the revid package requires gocv.io/x/gocv to be installed. On platforms
 where this is not available, a reduced functionality package can be built using
-the `nocv` build tag.
+the `withcv` build tag.
 
 # Contributing
 

turbidity/transform.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION

turbidity/turbidity.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION

turbidity/turbidity_test.go

@@ -1,5 +1,5 @@
-//go:build !nocv
+//go:build withcv
-// +build !nocv
+// +build withcv
 
 /*
 DESCRIPTION