allow status display output to be disabled

really only helpful if someone JUST wants the machine parseable
version, but this could be useful and will also clean up our tests as
we think about z-mode.

As a side effect, cleaned up the opt parsing so there are no global
variables.

commands/status/status.go

@@ -10,15 +10,15 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var porcelainFiles bool
-
 // CommandStatus processes 'git status --porcelain', and exports numbered
 // env variables that contain the path of each affected file.
 // Output is also more concise than standard 'git status'.
 //
 // TODO: Call with optional <group> parameter to filter by modification state:
 // 1 || Staged,  2 || Unmerged,  3 || Unstaged,  4 || Untracked
 func CommandStatus() *cobra.Command {
+	var optsFilelist bool
+	var optsDisplay bool
 
 	var statusCmd = &cobra.Command{
 		Use:   "status",
@@ -35,15 +35,28 @@ sets the environment variables for your shell. (For more information on this,
 see 'scmpuff init'.)
     `,
 		Run: func(cmd *cobra.Command, args []string) {
-			runStatus()
+			root := gitProjectRoot()
+			status := gitStatusOutput()
+
+			results := Process(status, root)
+			results.printStatus(optsFilelist, optsDisplay)
 		},
 	}
 
-	// --aliases
+	// --filelist, -f
 	statusCmd.Flags().BoolVarP(
-		&porcelainFiles,
+		&optsFilelist,
 		"filelist", "f", false,
-		"include parseable filelist as first line of output",
+		"include machine-parseable filelist",
+	)
+
+	// --display
+	// allow normal display to be disabled, not really useful unless you know you
+	// JUST want the machine parseable file-list for some reason.
+	statusCmd.Flags().BoolVarP(
+		&optsDisplay,
+		"display", "", true,
+		"displays the formatted status output",
 	)
 
 	// --relative
@@ -58,14 +71,6 @@ see 'scmpuff init'.)
 	return statusCmd
 }
 
-func runStatus() {
-	root := gitProjectRoot()
-	status := gitStatusOutput()
-
-	results := Process(status, root)
-	results.printStatus(porcelainFiles)
-}
-
 // Runs `git status --porcelain` and returns the results.
 //
 // If an error is encountered, the process will die fatally.

commands/status/statuslist.go

@@ -117,22 +117,24 @@ func (sl StatusList) orderedItems() (items []*StatusItem) {
 //
 // if `includeParseData` is true, the first line will be a machine parseable
 // list of files to be used for environment variable expansion.
-func (sl StatusList) printStatus(includeParseData bool) {
+func (sl StatusList) printStatus(includeParseData, includeStatusOutput bool) {
 	b := bufio.NewWriter(os.Stdout)
 
 	if includeParseData {
 		fmt.Fprintln(b, sl.dataForParsing())
 	}
 
-	fmt.Fprintln(b, sl.banner())
-
-	// keep track of number of items printed, and pass off information to each
-	// fileGroup, which knows how to print itself.
-	if sl.numItems() >= 1 {
-		startNum := 1
-		for _, fg := range sl.orderedGroups() {
-			fg.print(startNum, b)
-			startNum += len(fg.items)
+	if includeStatusOutput {
+		// print the banner
+		fmt.Fprintln(b, sl.banner())
+		// keep track of number of items printed, and pass off information to each
+		// fileGroup, which knows how to print itself.
+		if sl.numItems() >= 1 {
+			startNum := 1
+			for _, fg := range sl.orderedGroups() {
+				fg.print(startNum, b)
+				startNum += len(fg.items)
+			}
 		}
 	}