Adding more golang checks

.vscode/launch.json

@@ -21,7 +21,7 @@
             "mode": "auto",
             "program": "${workspaceFolder}",
             "env": {
-                "PLUGIN_WORKING_DIRECTORY": "/home/tp/workspace/drone-snyk",
+                "PLUGIN_WORKING_DIRECTORY": "/home/tp/workspace/drone",
             },
         },
     ]

scanner/golang/golang.go

@@ -2,11 +2,14 @@ package golang
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/tphoney/best_practice/outputter/bestpractice"
 	"github.com/tphoney/best_practice/outputter/dronebuild"
+	"github.com/tphoney/best_practice/scanner"
 	"github.com/tphoney/best_practice/types"
 	"golang.org/x/exp/slices"
 )
@@ -74,6 +77,12 @@ func (sc *scannerConfig) Scan(ctx context.Context, requestedOutputs []string) (r
 		}
 	}
 	// find the main.go file
+	if sc.runAll || slices.Contains(requestedOutputs, "main") {
+		match, mainResult := sc.mainCheck()
+		if match {
+			returnVal = append(returnVal, mainResult...)
+		}
+	}
 	// find test files
 	return returnVal, nil
 }
@@ -144,3 +153,35 @@ func (sc *scannerConfig) lintCheck() (match bool, outputResults []types.Scanlet)
 	}
 	return false, outputResults
 }
+
+func (sc *scannerConfig) mainCheck() (match bool, outputResults []types.Scanlet) {
+	matches, err := scanner.WalkMatch(sc.workingDirectory, "main.go")
+	if err == nil && len(matches) > 0 {
+		// we use the first one found
+		mainLocation := strings.TrimPrefix(matches[0], sc.workingDirectory)
+		mainLocation = strings.TrimSuffix(mainLocation, "main.go")
+		if len(mainLocation) == 1 {
+			// dont do anything if main is in the working directory
+			mainLocation = ""
+		} else {
+			mainLocation = "." + mainLocation
+		}
+
+		droneBuildResult := types.Scanlet{
+			Name:           LintCheckName,
+			ScannerFamily:  Name,
+			Description:    "run go build",
+			OutputRenderer: dronebuild.Name,
+			Spec: dronebuild.OutputFields{
+				RawYaml: fmt.Sprintf(
+					`  - name: build
+    image: golang:1
+    commands:
+      - go build %s`, mainLocation),
+			},
+		}
+		outputResults = append(outputResults, droneBuildResult)
+		return true, outputResults
+	}
+	return false, outputResults
+}

scanner/util.go

@@ -0,0 +1,28 @@
+package scanner
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func WalkMatch(workingDir, pattern string) ([]string, error) {
+	var matches []string
+	err := filepath.Walk(workingDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if matched, err := filepath.Match(pattern, filepath.Base(path)); err != nil {
+			return err
+		} else if matched {
+			matches = append(matches, path)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return matches, nil
+}