chore: added "secrets.mk" to store tokens

.gitignore

@@ -14,6 +14,9 @@
 # Dependency directories
 vendor/
 
+# secret Makefile
+secrets.mk
+
 # Compiled binaries and assets
 /cmd/travelgrunt/*
 !/cmd/travelgrunt/*.go

Makefile

@@ -10,6 +10,8 @@ NEXT_VERSION  := v${API_VERSION}.${NEXT_PATCH}
 BUILD_PATH   := ./cmd/${APP_NAME}
 RELEASE_PATH := ./release
 
+-include secrets.mk
+
 default: dep build
 
 all: dep build install
@@ -74,4 +76,7 @@ github-assets:
 
 github: github-release github-assets
 
-full-release: clean dep release next-version-tag push-tags github
+github-token:
+	@test -n "${GITHUB_TOKEN}" || (echo "GITHUB_TOKEN not set!" >>/dev/stderr; exit 1)
+
+full-release: github-token clean dep release next-version-tag push-tags github

README.md

@@ -31,10 +31,11 @@ the shell with aliases `travelgrunt` will not work!
 
 ## How to release a new version?
 
-:bulb: Set `GITHUB_TOKEN` environmental variable.
+:bulb: Export `GITHUB_TOKEN` environmental variable.
 
 Run `make full-release` recipe, which is equal to run following, one by one:
 
+* `make github-token` - check if `GITHUB_TOKEN` variable is set;
 * `make clean` - cleanup project tree from previously built artifacts;
 * `make dep` - ensure all dependencies are installed;
 * `make release` - create release artifacts;