Re-implemented the support for the floppy_files keyword in order to remain backwards-compatible with templates using the old syntax.

Moved the support for recursive paths from the floppy_files keyword to the new floppy_contents keyword.
Shifted some of the code around to add better logging of what's actually being copied.
Added a couple of unit-tests for the new floppy_contents implementation.
Ensured that all files that were being added were also being included in state.FilesAdded so that the older unit-tests will work.

builder/qemu/builder.go

@@ -93,7 +93,6 @@ type Config struct {
 	DiskDiscard     string     `mapstructure:"disk_discard"`
 	SkipCompaction  bool       `mapstructure:"skip_compaction"`
 	DiskCompression bool       `mapstructure:"disk_compression"`
-	FloppyFiles     []string   `mapstructure:"floppy_files"`
 	Format          string     `mapstructure:"format"`
 	Headless        bool       `mapstructure:"headless"`
 	DiskImage       bool       `mapstructure:"disk_image"`
@@ -365,7 +364,8 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 
 	steps = append(steps, new(stepPrepareOutputDir),
 		&common.StepCreateFloppy{
-			Files: b.config.FloppyFiles,
+			Files:    b.config.FloppyConfig.FloppyFiles,
+			Contents: b.config.FloppyConfig.FloppyContents,
 		},
 		new(stepCreateDisk),
 		new(stepCopyDisk),

builder/vmware/iso/builder.go

@@ -231,7 +231,8 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			Force: b.config.PackerForce,
 		},
 		&common.StepCreateFloppy{
-			Files: b.config.FloppyFiles,
+			Files:    b.config.FloppyConfig.FloppyFiles,
+			Contents: b.config.FloppyConfig.FloppyContents,
 		},
 		&stepRemoteUpload{
 			Key:     "floppy_path",

builder/vmware/vmx/builder.go

@@ -62,7 +62,8 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			Force: b.config.PackerForce,
 		},
 		&common.StepCreateFloppy{
-			Files: b.config.FloppyFiles,
+			Files:    b.config.FloppyConfig.FloppyFiles,
+			Contents: b.config.FloppyConfig.FloppyContents,
 		},
 		&StepCloneVMX{
 			OutputDir: b.config.OutputDir,

common/floppy_config.go

@@ -8,7 +8,8 @@ import (
 )
 
 type FloppyConfig struct {
-	FloppyFiles []string `mapstructure:"floppy_files"`
+	FloppyFiles    []string `mapstructure:"floppy_files"`
+	FloppyContents []string `mapstructure:"floppy_contents"`
 }
 
 func (c *FloppyConfig) Prepare(ctx *interpolate.Context) []error {
@@ -24,5 +25,15 @@ func (c *FloppyConfig) Prepare(ctx *interpolate.Context) []error {
 		}
 	}
 
+	if c.FloppyContents == nil {
+		c.FloppyContents = make([]string, 0)
+	}
+
+	for _, path := range c.FloppyContents {
+		if _, err := os.Stat(path); err != nil {
+			errs = append(errs, fmt.Errorf("Bad Floppy disk directory '%s': %s", path, err))
+		}
+	}
+
 	return errs
 }

common/step_create_floppy.go

@@ -19,7 +19,8 @@ import (
 // The floppy disk doesn't support sub-directories. Only files at the
 // root level are supported.
 type StepCreateFloppy struct {
-	Files []string
+	Files    []string
+	Contents []string
 
 	floppyPath string
 
@@ -27,7 +28,7 @@ type StepCreateFloppy struct {
 }
 
 func (s *StepCreateFloppy) Run(state multistep.StateBag) multistep.StepAction {
-	if len(s.Files) == 0 {
+	if len(s.Files) == 0 && len(s.Contents) == 0 {
 		log.Println("No floppy files specified. Floppy disk will not be made.")
 		return multistep.ActionContinue
 	}
@@ -85,17 +86,88 @@ func (s *StepCreateFloppy) Run(state multistep.StateBag) multistep.StepAction {
 		return multistep.ActionHalt
 	}
 
-	// Get the root directory to the filesystem
+	// Get the root directory to the filesystem and create a cache for any directories within
 	log.Println("Reading the root directory from the filesystem")
 	rootDir, err := fatFs.RootDir()
 	if err != nil {
 		state.Put("error", fmt.Errorf("Error creating floppy: %s", err))
 		return multistep.ActionHalt
 	}
+	cache := fsDirectoryCache(rootDir)
+
+	// Utility functions for walking through a directory grabbing all files flatly
+	globFiles := func(files []string, list chan string) {
+		for _,filename := range files {
+			if strings.IndexAny(filename, "*?[") >= 0 {
+				matches,_ := filepath.Glob(filename)
+				if err != nil { continue }
+
+				for _,match := range matches {
+					list <- match
+				}
+				continue
+			}
+			list <- filename
+		}
+		close(list)
+	}
+
+	var crawlDirectoryFiles []string
+	crawlDirectory := func(path string, info os.FileInfo, err error) error {
+		if !info.IsDir() {
+			crawlDirectoryFiles = append(crawlDirectoryFiles, path)
+			ui.Message(fmt.Sprintf("Adding file: %s", path))
+		}
+		return nil
+	}
+	crawlDirectoryFiles = []string{}
+
+	// Collect files and copy them flatly...because floppy_files is broken on purpose.
+	var filelist chan string
+	filelist = make(chan string)
+	go globFiles(s.Files, filelist)
+
+	ui.Message("Copying files flatly from floppy_files")
+	for {
+		filename, ok := <-filelist
+		if !ok { break }
+
+		finfo,err := os.Stat(filename)
+		if err != nil {
+			state.Put("error", fmt.Errorf("Error trying to stat : %s : %s", filename, err))
+			return multistep.ActionHalt
+		}
+
+		// walk through directory adding files to the root of the fs
+		if finfo.IsDir() {
+			ui.Message(fmt.Sprintf("Copying directory: %s", filename))
+
+			err := filepath.Walk(filename, crawlDirectory)
+			if err != nil {
+				state.Put("error", fmt.Errorf("Error adding file from floppy_files : %s : %s", filename, err))
+				return multistep.ActionHalt
+			}
+
+			for _,crawlfilename := range crawlDirectoryFiles {
+				s.Add(cache, crawlfilename)
+				s.FilesAdded[crawlfilename] = true
+			}
+
+			crawlDirectoryFiles = []string{}
+			continue
+		}
+
+		// add just a single file
+		ui.Message(fmt.Sprintf("Copying file: %s", filename))
+		s.Add(cache, filename)
+		s.FilesAdded[filename] = true
+	}
+	ui.Message("Done copying files from floppy_files")
 
 	// Collect all paths (expanding wildcards) into pathqueue
+	ui.Message("Collecting paths from floppy_contents")
 	var pathqueue []string
-	for _,filename := range s.Files {
+	for _,filename := range s.Contents {
 		if strings.IndexAny(filename, "*?[") >= 0 {
 			matches,err := filepath.Glob(filename)
 			if err != nil {
@@ -110,23 +182,18 @@ func (s *StepCreateFloppy) Run(state multistep.StateBag) multistep.StepAction {
 		}
 		pathqueue = append(pathqueue, filename)
 	}
+	ui.Message(fmt.Sprintf("Resulting paths from floppy_contents : %v", pathqueue))
 
 	// Go over each path in pathqueue and copy it.
-	getDirectory := fsDirectoryCache(rootDir)
 	for _,src := range pathqueue {
-		ui.Message(fmt.Sprintf("Copying: %s", src))
-		err = s.Add(getDirectory, src)
+		ui.Message(fmt.Sprintf("Recursively copying : %s", src))
+		err = s.Add(cache, src)
 		if err != nil {
 			state.Put("error", fmt.Errorf("Error adding path %s to floppy: %s", src, err))
 			return multistep.ActionHalt
 		}
-
-		// FIXME: setting this map according to each pathqueue entry breaks
-		// our testcases, because it only keeps track of the number of files
-		// that are set here instead of actually verifying against the
-		// filesystem...heh
-//		s.FilesAdded[src] = true
 	}
+	ui.Message("Done copying paths from floppy_contents")
 
 	// Set the path to the floppy so it can be used later
 	state.Put("floppy_path", s.floppyPath)
@@ -134,7 +201,7 @@ func (s *StepCreateFloppy) Run(state multistep.StateBag) multistep.StepAction {
 	return multistep.ActionContinue
 }
 
-func (s *StepCreateFloppy) Add(dir getFsDirectory, src string) error {
+func (s *StepCreateFloppy) Add(dircache directoryCache, src string) error {
 	finfo,err := os.Stat(src)
 	if err != nil {
 		return fmt.Errorf("Error adding path to floppy: %s", err)
@@ -146,7 +213,7 @@ func (s *StepCreateFloppy) Add(dir getFsDirectory, src string) error {
 		if err != nil { return err }
 		defer inputF.Close()
 
-		d,err := dir("")
+		d,err := dircache("")
 		if err != nil { return err }
 
 		entry,err := d.AddFile(path.Base(src))
@@ -167,7 +234,7 @@ func (s *StepCreateFloppy) Add(dir getFsDirectory, src string) error {
 		if fi.Mode().IsDir() {
 			base,err := removeBase(basedirectory, pathname)
 			if err != nil { return err }
-			_,err = dir(filepath.ToSlash(base))
+			_,err = dircache(filepath.ToSlash(base))
 			return err
 		}
 		directory,filename := filepath.Split(pathname)
@@ -179,7 +246,7 @@ func (s *StepCreateFloppy) Add(dir getFsDirectory, src string) error {
 		if err != nil { return err }
 		defer inputF.Close()
 
-		wd,err := dir(filepath.ToSlash(base))
+		wd,err := dircache(filepath.ToSlash(base))
 		if err != nil { return err }
 
 		entry,err := wd.AddFile(filename)
@@ -189,7 +256,7 @@ func (s *StepCreateFloppy) Add(dir getFsDirectory, src string) error {
 		if err != nil { return err }
 
 		_,err = io.Copy(fatFile,inputF)
-		s.FilesAdded[filename] = true
+		s.FilesAdded[pathname] = true
 		return err
 	}
 
@@ -233,8 +300,8 @@ func removeBase(base string, path string) (string,error) {
 // entry associated with a given path. If an fs.Directory entry is not found
 // then it will be created relative to the rootDirectory argument that is
 // passed.
-type getFsDirectory func(string) (fs.Directory,error)
-func fsDirectoryCache(rootDirectory fs.Directory) getFsDirectory {
+type directoryCache func(string) (fs.Directory,error)
+func fsDirectoryCache(rootDirectory fs.Directory) directoryCache {
 	var cache map[string]fs.Directory
 
 	cache = make(map[string]fs.Directory)

common/step_create_floppy_test.go

@@ -7,10 +7,53 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"path/filepath"
 	"strconv"
 	"testing"
+	"log"
+	"strings"
+	"fmt"
 )
 
+// utility function for returning a directory structure as a list of strings
+func getDirectory(path string) []string {
+	var result []string
+	walk := func(path string, info os.FileInfo, err error) error {
+		if info.IsDir() && !strings.HasSuffix(path, "/") {
+			path = path + "/"
+		}
+		result = append(result, filepath.ToSlash(path))
+		return nil
+	}
+	filepath.Walk(path, walk)
+	return result
+}
+
+// utility function for creating a directory structure
+type createFileContents func(string) []byte
+func createDirectory(path string, hier []string, fileContents createFileContents) error {
+	if fileContents == nil {
+		fileContents = func(string) []byte {
+			return []byte{}
+		}
+	}
+	for _,filename := range hier {
+		p := filepath.Join(path, filename)
+		if strings.HasSuffix(filename, "/") {
+			err := os.MkdirAll(p, 0)
+			if err != nil { return err }
+			continue
+		}
+		f,err := os.Create(p)
+		if err != nil { return err }
+		_,err = f.Write(fileContents(filename))
+		if err != nil { return err }
+		err = f.Close()
+		if err != nil { return err }
+	}
+	return nil
+}
+
 func TestStepCreateFloppy_Impl(t *testing.T) {
 	var raw interface{}
 	raw = new(StepCreateFloppy)
@@ -191,3 +234,98 @@ func xxxTestStepCreateFloppy_notfound(t *testing.T) {
 		}
 	}
 }
+
+func TestStepCreateFloppyContents(t *testing.T) {
+	// file-system hierarchies
+	hierarchies := [][]string{
+		[]string{"file1", "file2", "file3"},
+		[]string{"dir1/", "dir1/file1", "dir1/file2", "dir1/file3"},
+		[]string{"dir1/", "dir1/file1", "dir1/subdir1/", "dir1/subdir1/file1", "dir1/subdir1/file2", "dir2/", "dir2/subdir1/", "dir2/subdir1/file1","dir2/subdir1/file2"},
+	}
+
+	type contentsTest struct {
+		contents []string
+		result []string
+	}
+
+	// keep in mind that .FilesAdded doesn't keep track of the target filename or directories, but rather the source filename.
+	contents := [][]contentsTest{
+		[]contentsTest{
+			contentsTest{contents:[]string{"file1","file2","file3"},result:[]string{"file1","file2","file3"}},
+			contentsTest{contents:[]string{"file?"},result:[]string{"file1","file2","file3"}},
+			contentsTest{contents:[]string{"*"},result:[]string{"file1","file2","file3"}},
+		},
+		[]contentsTest{
+			contentsTest{contents:[]string{"dir1"},result:[]string{"dir1/file1","dir1/file2","dir1/file3"}},
+			contentsTest{contents:[]string{"dir1/file1","dir1/file2","dir1/file3"},result:[]string{"dir1/file1","dir1/file2","dir1/file3"}},
+			contentsTest{contents:[]string{"*"},result:[]string{"dir1/file1","dir1/file2","dir1/file3"}},
+			contentsTest{contents:[]string{"*/*"},result:[]string{"dir1/file1","dir1/file2","dir1/file3"}},
+		},
+		[]contentsTest{
+			contentsTest{contents:[]string{"dir1"},result:[]string{"dir1/file1","dir1/subdir1/file1","dir1/subdir1/file2"}},
+			contentsTest{contents:[]string{"dir2/*"},result:[]string{"dir2/subdir1/file1","dir2/subdir1/file2"}},
+			contentsTest{contents:[]string{"dir2/subdir1"},result:[]string{"dir2/subdir1/file1","dir2/subdir1/file2"}},
+			contentsTest{contents:[]string{"dir?"},result:[]string{"dir1/file1","dir1/subdir1/file1","dir1/subdir1/file2","dir2/subdir1/file1","dir2/subdir1/file2"}},
+		},
+	}
+
+	// create the hierarchy for each file
+	for i,hier := range hierarchies {
+		t.Logf("Trying with hierarchy : %v",hier)
+
+		// create the temp directory
+		dir, err := ioutil.TempDir("", "packer")
+		if err != nil {
+			t.Fatalf("err: %s", err)
+		}
+
+		// create the file contents
+		err = createDirectory(dir, hier, nil)
+		if err != nil { t.Fatalf("err: %s", err) }
+		t.Logf("Making %v", hier)
+
+		for _,test := range contents[i] {
+			// createa new state and step
+			state := testStepCreateFloppyState(t)
+			step := new(StepCreateFloppy)
+
+			// modify step.Contents with ones from testcase
+			step.Contents = []string{}
+			for _,c := range test.contents {
+				step.Contents = append(step.Contents, filepath.Join(dir,filepath.FromSlash(c)))
+			}
+			log.Println(fmt.Sprintf("Trying against floppy_contents : %v",step.Contents))
+
+			// run the step
+			if action := step.Run(state); action != multistep.ActionContinue {
+				t.Fatalf("bad action: %#v for %v : %v", action, step.Contents, state.Get("error"))
+			}
+
+			if _, ok := state.GetOk("error"); ok {
+				t.Fatalf("state should be ok for %v : %v", step.Contents, state.Get("error"))
+			}
+
+			floppy_path := state.Get("floppy_path").(string)
+			if _, err := os.Stat(floppy_path); err != nil {
+				t.Fatalf("file not found: %s for %v : %v", floppy_path, step.Contents)
+			}
+
+			// check the FilesAdded array to see if it matches
+			for _,rpath := range test.result {
+				fpath := filepath.Join(dir, filepath.FromSlash(rpath))
+				if !step.FilesAdded[fpath] {
+					t.Fatalf("unable to find file: %s for %v", fpath, step.Contents)
+				}
+			}
+
+			// cleanup the step
+			step.Cleanup(state)
+
+			if _, err := os.Stat(floppy_path); err == nil {
+				t.Fatalf("file found: %s for %v", floppy_path, step.Contents)
+			}
+		}
+		// remove the temp directory
+		os.RemoveAll(dir)
+	}
+}