Fix bug when equal sign is inside env vars

Author: mblaschke

README.md

@@ -79,7 +79,7 @@ go-replace --mode=template daemon.conf
 ## Installation
 
 ```bash
-GOREPLACE_VERSION=0.5.1 \
+GOREPLACE_VERSION=0.5.2 \
 && wget -O /usr/local/bin/go-replace https://github.com/webdevops/goreplace/releases/download/$GOREPLACE_VERSION/gr-64-linux \
 && chmod +x /usr/local/bin/go-replace
 ```

goreplace.go

@@ -17,7 +17,7 @@ import (
 
 const (
     Author  = "webdevops.io"
-    Version = "0.5.1"
+    Version = "0.5.2"
 )
 
 type changeset struct {
@@ -431,7 +431,11 @@ func generateTemplateData(changesets []changeset) (templateData) {
     // add env variables
     for _, e := range os.Environ() {
         pair := strings.Split(e, "=")
-        ret.Env[pair[0]] = pair[1]
+
+        envKey := pair[0]
+        envValue := strings.Join(pair[1:], "=")
+
+        ret.Env[envKey] = envValue
     }
 
     return ret

tests/main.test

@@ -417,6 +417,27 @@ Testing template mode with only env and empty var:
   this is the last line
 
 
+Testing template mode with only env and empty var:
+
+  $ cat > test.txt <<EOF
+  > {{23 -}} < {{- 45}}
+  > {{.Env.Foobar}}
+  > this is a testline
+  > this is the second line
+  > this is the third foobar line
+  > this is the last line
+  > EOF
+  $ Foobar="bar=foo" goreplace --mode=template test.txt
+  $ cat test.txt
+  23<45
+  bar=foo
+  this is a testline
+  this is the second line
+  this is the third foobar line
+  this is the last line
+
+
+
 Testing template mode:
 
   $ cat > test.txt <<EOF