Fixes issue 59 by rolling back changes made in PR 55

main.go

@@ -123,11 +123,7 @@ func runFetchWrapper(c *cli.Context) {
 
 // Run the fetch program
 func runFetch(c *cli.Context) error {
-	options, err := parseOptions(c)
-	if err != nil {
-        return err
-    }
-
+	options := parseOptions(c)
 	if err := validateOptions(options); err != nil {
 		return err
 	}
@@ -198,7 +194,7 @@ func runFetch(c *cli.Context) error {
 	return nil
 }
 
-func parseOptions(c *cli.Context) (FetchOptions, error) {
+func parseOptions(c *cli.Context) FetchOptions {
 	localDownloadPath := c.Args().First()
 	sourcePaths := c.StringSlice(OPTION_SOURCE_PATH)
 	assetChecksums := c.StringSlice(OPTION_RELEASE_ASSET_CHECKSUM)
@@ -212,37 +208,6 @@ func parseOptions(c *cli.Context) (FetchOptions, error) {
 		localDownloadPath = c.Args().Get(1)
 	}
 
-    optionsList := []string{
-        OPTION_REPO,
-        OPTION_TAG,
-        OPTION_COMMIT,
-        OPTION_BRANCH,
-        OPTION_GITHUB_TOKEN,
-        OPTION_SOURCE_PATH,
-        OPTION_RELEASE_ASSET,
-        OPTION_RELEASE_ASSET_CHECKSUM,
-        OPTION_RELEASE_ASSET_CHECKSUM_ALGO,
-        OPTION_GITHUB_API_VERSION,
-        OPTION_WITH_PROGRESS,
-    }
-
-    for _, option := range optionsList {
-        switch option {
-        case OPTION_SOURCE_PATH, OPTION_RELEASE_ASSET_CHECKSUM:
-            if c.IsSet(option) {
-                for _, slice := range c.StringSlice(option) {
-                    if slice == "" {
-                        return FetchOptions{}, fmt.Errorf("You specified the --%s flag but did not provide any value.", option)
-                    }
-                }
-            }
-        default:
-            if c.IsSet(option) && c.String(option) == "" {
-                return FetchOptions{}, fmt.Errorf("You specified the --%s flag but did not provide any value.", option)
-            }
-        }
-    }
-
 	for _, assetChecksum := range assetChecksums {
 		assetChecksumMap[assetChecksum] = true
 	}
@@ -260,7 +225,7 @@ func parseOptions(c *cli.Context) (FetchOptions, error) {
 		LocalDownloadPath:        localDownloadPath,
 		GithubApiVersion:         c.String(OPTION_GITHUB_API_VERSION),
 		WithProgress:             c.IsSet(OPTION_WITH_PROGRESS),
-	}, nil
+	}
 }
 
 func validateOptions(options FetchOptions) error {

main_test.go

@@ -4,8 +4,6 @@ import (
 	"fmt"
 	"os"
 	"testing"
-
-	cli "gopkg.in/urfave/cli.v1"
 )
 
 // Expect to download 2 assets:
@@ -60,85 +58,3 @@ func TestInvalidReleaseAssetsRegex(t *testing.T) {
 		t.Fatalf("Expected error for invalid regex")
 	}
 }
-
-func TestEmptyOptionValues(t *testing.T) {
-	app := cli.NewApp()
-	app.Name = "main_test"
-	app.Flags = []cli.Flag{
-		cli.StringFlag{
-			Name:  OPTION_REPO,
-		},
-		cli.StringFlag{
-			Name:  OPTION_COMMIT,
-		},
-		cli.StringFlag{
-			Name:  OPTION_BRANCH,
-		},
-		cli.StringFlag{
-			Name:  OPTION_TAG,
-		},
-		cli.StringFlag{
-			Name:   OPTION_GITHUB_TOKEN,
-			EnvVar: ENV_VAR_GITHUB_TOKEN,
-		},
-		cli.StringSliceFlag{
-			Name:  OPTION_SOURCE_PATH,
-		},
-		cli.StringFlag{
-			Name:  OPTION_RELEASE_ASSET,
-		},
-		cli.StringSliceFlag{
-			Name:  OPTION_RELEASE_ASSET_CHECKSUM,
-		},
-		cli.StringFlag{
-			Name:  OPTION_RELEASE_ASSET_CHECKSUM_ALGO,
-		},
-		cli.StringFlag{
-			Name:  OPTION_GITHUB_API_VERSION,
-			Value: "v3",
-		},
-		cli.StringFlag{
-			Name: OPTION_WITH_PROGRESS,
-		},
-	}
-
-    app.Action = func(c *cli.Context) error {
-        _, err := parseOptions(c)
-        return err
-    }
-
-    var args []string
-    var expected string
-    var err error
-
-    optionsList := []string{
-        OPTION_REPO,
-        OPTION_COMMIT,
-        OPTION_BRANCH,
-        OPTION_TAG,
-        OPTION_GITHUB_TOKEN,
-        OPTION_SOURCE_PATH,
-        OPTION_RELEASE_ASSET,
-        OPTION_RELEASE_ASSET_CHECKSUM,
-        OPTION_RELEASE_ASSET_CHECKSUM_ALGO,
-        OPTION_GITHUB_API_VERSION,
-        OPTION_WITH_PROGRESS,
-    }
-
-    for _, option := range optionsList {
-        args = os.Args[0:1]
-        dashedOption := "--" + option
-        emptyOption := dashedOption + "="
-        args = append(args, emptyOption)
-
-        err = app.Run(args)
-        expected = fmt.Sprintf("You specified the %s flag but did not provide any value.", dashedOption)
-        if (err != nil) && (err.Error() != expected) { 
-            t.Fatalf("Expected '%s' but received '%s'", expected, err.Error())
-        }
-
-        if err == nil {
-            t.Fatalf("Expected '%s' but received nothing", expected)
-        }
-    }
-}