Add check for docs (grpc-ecosystem#138)

* Travis will now check to see if the docs have correctly been updated

Author: domgreen

.travis.yml

@@ -15,7 +15,8 @@ install:
   - dep ensure
 
 script:
- - make test 
+ - make checkdocs
+ - make test
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

CONTRIBUTING.md

@@ -0,0 +1,20 @@
+# Contributing
+
+We would love to have people submit pull requests and help make `grpc-ecosystem/go-grpc-middleware` even better 👍.
+
+Fork, then clone the repo:
+
+```bash
+git clone [email protected]:your-username/go-grpc-middleware.git
+```    
+
+Before checking in please run the following:
+
+```bash
+make all
+```
+
+This will `vet`, `fmt`, regenerate documentation and run all tests.
+
+
+Push to your fork and open a pull request.

makefile

@@ -5,7 +5,10 @@ GOFILES_NOVENDOR = $(shell go list ./... | grep -v /vendor/)
 all: vet fmt docs test
 
 docs:
-	./scripts/fixup.sh
+	./scripts/docs.sh generate
+
+checkdocs:
+	./scripts/docs.sh check
 
 fmt:
 	go fmt $(GOFILES_NOVENDOR)

scripts/fixup.sh scripts/docs.sh

@@ -11,8 +11,7 @@ function generate_markdown {
     echo "Generating Github markdown"
     oldpwd=$(pwd)
     for i in $(find . -iname 'doc.go' -not -path "*vendor/*"); do
-        dir=${i%/*}
-        realdir=$(realpath $dir)
+        realdir=$(cd $(dirname ${i}) && pwd -P)
         package=${realdir##${GOPATH}/src/}
         echo "$package"
         cd ${dir}
@@ -22,6 +21,22 @@ function generate_markdown {
     done;
 }
 
-go get github.com/devnev/godoc2ghmd
-generate_markdown
-echo "returning $?"
+function generate {
+    go get github.com/devnev/godoc2ghmd
+    generate_markdown
+    echo "returning $?"
+}
+
+function check {
+    generate
+    count=$(git diff --numstat | wc -l | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
+    echo $count
+    if [ "$count" = "0" ]; then
+        return 0
+    else
+        echo "Your markdown docs seem to be out of sync with the package docs. Please run make and consult CONTRIBUTING.MD"
+        return 1
+    fi
+}
+
+"$@"

tracing/opentracing/DOC.md

@@ -115,4 +115,4 @@ func WithTracer(tracer opentracing.Tracer) Option
 WithTracer sets a custom tracer to be used for this middleware, otherwise the opentracing.GlobalTracer is used.
 
 - - -
-Generated by [godoc2ghmd](https://github.com/GandalfUK/godoc2ghmd)
+Generated by [godoc2ghmd](https://github.com/GandalfUK/godoc2ghmd)