update docs

docs/cmd/hrp.md

@@ -35,5 +35,6 @@ Copyright 2017 debugtalk
 * [hrp pytest](hrp_pytest.md)	 - run API test with pytest
 * [hrp run](hrp_run.md)	 - run API test with go engine
 * [hrp startproject](hrp_startproject.md)	 - create a scaffold project
+* [hrp wiki](hrp_wiki.md)	 - visit https://httprunner.com
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_boom.md

@@ -42,4 +42,4 @@ hrp boom [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_convert.md

@@ -18,4 +18,4 @@ hrp convert $path... [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_har2case.md

@@ -24,4 +24,4 @@ hrp har2case $har_path... [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_pytest.md

@@ -16,4 +16,4 @@ hrp pytest $path ... [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_run.md

@@ -35,4 +35,4 @@ hrp run $path... [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_startproject.md

@@ -20,4 +20,4 @@ hrp startproject $project_name [flags]
 
 * [hrp](hrp.md)	 - Next-Generation API Testing Solution.
 
-###### Auto generated by spf13/cobra on 20-May-2022
+###### Auto generated by spf13/cobra on 24-May-2022

docs/cmd/hrp_wiki.md

@@ -0,0 +1,19 @@
+## hrp wiki
+
+visit https://httprunner.com
+
+```
+hrp wiki [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for wiki
+```
+
+### SEE ALSO
+
+* [hrp](hrp.md)	 - Next-Generation API Testing Solution.
+
+###### Auto generated by spf13/cobra on 24-May-2022

examples/demo-with-go-plugin/proj.json

@@ -1,6 +1,6 @@
 {
     "project_name": "demo-with-go-plugin",
     "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-with-go-plugin",
-    "create_time": "2022-05-24T22:21:23.330967+08:00",
+    "create_time": "2022-05-24T22:23:19.739989+08:00",
     "hrp_version": "v4.1.0-beta"
 }

examples/demo-with-py-plugin/proj.json

@@ -1,6 +1,6 @@
 {
     "project_name": "demo-with-py-plugin",
     "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-with-py-plugin",
-    "create_time": "2022-05-24T22:21:30.722372+08:00",
+    "create_time": "2022-05-24T22:23:27.199105+08:00",
     "hrp_version": "v4.1.0-beta"
 }

examples/demo-without-plugin/proj.json

@@ -1,6 +1,6 @@
 {
     "project_name": "demo-without-plugin",
     "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-without-plugin",
-    "create_time": "2022-05-24T22:21:31.676833+08:00",
+    "create_time": "2022-05-24T22:23:27.955511+08:00",
     "hrp_version": "v4.1.0-beta"
 }

hrp/runner.go

@@ -289,7 +289,11 @@ func (r *testCaseRunner) parseConfig() error {
 
 	// merge config environment variables with base_url
 	// priority: env base_url > base_url
-	r.parsedConfig.Env = cfg.Env
+	if cfg.Env != nil {
+		r.parsedConfig.Env = cfg.Env
+	} else {
+		r.parsedConfig.Env = make(map[string]string)
+	}
 	if value, ok := r.parsedConfig.Env["base_url"]; !ok || value == "" {
 		r.parsedConfig.Env["base_url"] = r.parsedConfig.BaseURL
 	}