Add SetLogger for setting global logger

- list prerequisites in README
- avoid calling go list by hard-coding module path

Change-Id: Ib8af1934f55b7e112a8124a20f1f4d39ce651133
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

3 files changed, 15 insertions, 6 deletions

diff --git a/Makefile b/Makefile
index 675deb9..5257617 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ SHELL := /usr/bin/env bash -o pipefail
 
 VERSION ?= $(shell git describe --always --tags --dirty)
 COMMIT ?= $(shell git rev-parse HEAD)
-BUILD_STAMP ?= $(shell git log -1 --format="%ct")
+BUILD_STAMP ?= $(shell git log -1 --format='%ct')
 BUILD_BRANCH ?= $(shell git rev-parse --abbrev-ref HEAD)
 
 BUILD_HOST ?= $(shell hostname)
@@ -10,7 +10,7 @@ BUILD_USER ?= $(shell id -un)
 
 GO ?= go
 
-GOVPP_PKG := $(shell go list)
+GOVPP_PKG := git.fd.io/govpp.git
 LDFLAGS = \
 	-X ${GOVPP_PKG}/version.version=$(VERSION) \
 	-X ${GOVPP_PKG}/version.commitHash=$(COMMIT) \
diff --git a/README.md b/README.md
index 0f3b773..509e590 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,10 @@ of linking the GoVPP core and all its dependencies into them.
     +--------------+
 ```
 
+## Prerequisites
+
+- [Go 1.13](https://golang.org/dl)
+
 ## Quick Start
 
 Make sure that $GOPATH, $GOROOT, and $PATH are set. If you cloned the
diff --git a/adapter/socketclient/socketclient.go b/adapter/socketclient/socketclient.go
index 574ae06..637bd69 100644
--- a/adapter/socketclient/socketclient.go
+++ b/adapter/socketclient/socketclient.go
@@ -56,16 +56,21 @@ var (
 	debug       = strings.Contains(os.Getenv("DEBUG_GOVPP"), "socketclient")
 	debugMsgIds = strings.Contains(os.Getenv("DEBUG_GOVPP"), "msgtable")
 
-	logger = logrus.New()
-	log    = logger.WithField("logger", "govpp/socketclient")
+	log logrus.FieldLogger
 )
 
-// init initializes global logger
+// SetLogger sets global logger.
+func SetLogger(logger logrus.FieldLogger) {
+	log = logger
+}
+
 func init() {
+	logger := logrus.New()
 	if debug {
 		logger.Level = logrus.DebugLevel
-		log.Debug("govpp: debug level enabled for socketclient")
+		logger.Debug("govpp: debug level enabled for socketclient")
 	}
+	log = logger.WithField("logger", "govpp/socketclient")
 }
 
 const socketMissing = `