Add feature that list up S3 Objects

Makefile

@@ -19,7 +19,6 @@ build:  ## Build binary
 	env GO111MODULE=on GOOS=$(GOOS) GOARCH=$(GOARCH) $(GO_BUILD) $(GO_LDFLAGS) -o $(S3HUB) cmd/s3hub/main.go
 	env GO111MODULE=on GOOS=$(GOOS) GOARCH=$(GOARCH) $(GO_BUILD) $(GO_LDFLAGS) -o $(SPARE) cmd/spare/main.go
 
-
 clean: ## Clean project
 	-rm -rf $(S3HUB) $(SPARE) cover.out cover.html
 
@@ -42,6 +41,7 @@ generate: ## Generate code from templates
 gif: docker ## Generate gif image
 	vhs < doc/img/vhs/s3hub-mb.tape
 	vhs < doc/img/vhs/s3hub-ls.tape
+	vhs < doc/img/vhs/s3hub-ls.tape
 	vhs < doc/img/vhs/s3hub-rm-all.tape
 
 docker:  ## Start docker (localstack)

app/domain/model/s3.go

@@ -322,6 +322,16 @@ func (s S3ObjectIdentifierSets) Len() int {
 	return len(s)
 }
 
+// Less defines the ordering of S3ObjectIdentifier instances.
+func (s S3ObjectIdentifierSets) Less(i, j int) bool {
+	return s[i].S3Key < s[j].S3Key
+}
+
+// Swap swaps the elements with indexes i and j.
+func (s S3ObjectIdentifierSets) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}
+
 // ToS3ObjectIdentifiers converts the S3ObjectSets to the ObjectIdentifiers.
 func (s S3ObjectIdentifierSets) ToS3ObjectIdentifiers() []types.ObjectIdentifier {
 	ids := make([]types.ObjectIdentifier, 0, s.Len())

cmd/subcmd/s3hub/ls.go

@@ -1,6 +1,10 @@
 package s3hub
 
 import (
+	"errors"
+	"fmt"
+	"sort"
+
 	"github.com/fatih/color"
 	"github.com/nao1215/rainbow/app/domain/model"
 	"github.com/nao1215/rainbow/app/usecase"
@@ -30,19 +34,48 @@ type lsCmd struct {
 	*s3hub
 	// bucket is the name of the bucket.
 	bucket model.Bucket
+	// lsMode is the mode for listing.
+	mode lsMode
 }
 
+// lsMode is the mode for listing.
+type lsMode int
+
+const (
+	// lsModeBucket is the mode for listing buckets.
+	lsModeBucket lsMode = 0
+	// lsModeObject is the mode for listing objects.
+	lsModeObject lsMode = 1
+)
+
 // Parse parses command line arguments.
 func (l *lsCmd) Parse(cmd *cobra.Command, args []string) error {
 	if len(args) >= 1 {
-		l.bucket = model.Bucket(args[0])
+		l.bucket = model.NewBucketWithoutProtocol(args[0])
+	}
+
+	if !l.bucket.Empty() {
+		l.mode = lsModeObject
+		l.bucket, _ = l.bucket.Split()
 	}
 
 	l.s3hub = newS3hub()
 	return l.s3hub.parse(cmd)
 }
 
 func (l *lsCmd) Do() error {
+	switch l.mode {
+	case lsModeBucket:
+		return l.printBucket()
+	case lsModeObject:
+		return l.printObject()
+	default:
+		return errors.New("invalid mode: please report this bug: https://github.com/nao1215/rainbow")
+	}
+}
+
+// printBucket prints buckets.
+func (l *lsCmd) printBucket() error {
 	out, err := l.s3hub.S3BucketLister.ListS3Buckets(l.ctx, &usecase.S3BucketListerInput{})
 	if err != nil {
 		return err
@@ -61,3 +94,37 @@ func (l *lsCmd) Do() error {
 	}
 	return nil
 }
+
+// printObject prints objects.
+func (l *lsCmd) printObject() error {
+	listBuckets, err := l.s3hub.S3BucketLister.ListS3Buckets(l.ctx, &usecase.S3BucketListerInput{})
+	if err != nil {
+		return err
+	}
+	if !listBuckets.Buckets.Contains(l.bucket) {
+		return fmt.Errorf("bucket not found: %s", color.YellowString("%s", l.bucket))
+	}
+
+	listS3Objects, err := l.s3hub.S3BucketObjectsLister.ListS3BucketObjects(l.ctx, &usecase.S3BucketObjectsListerInput{
+		Bucket: l.bucket,
+	})
+	if err != nil {
+		return err
+	}
+
+	l.printf("[S3Objects (profile=%s)]\n", l.profile.String())
+	if len(listS3Objects.Objects) == 0 {
+		l.printf("  No S3 Objects\n")
+		return nil
+	}
+
+	sort.Sort(listS3Objects.Objects)
+	for _, o := range listS3Objects.Objects {
+		if o.VersionID == "" {
+			l.printf("  %s/%s\n", l.bucket, o.S3Key)
+			continue
+		}
+		l.printf("  %s/%s (version id=%s)\n", l.bucket, o.S3Key, o.VersionID)
+	}
+	return nil
+}

doc/img/vhs/s3hub-ls-objects.tape

@@ -0,0 +1,69 @@
+# VHS documentation
+#
+# Output:
+#   Output <path>.gif               Create a GIF output at the given <path>
+#   Output <path>.mp4               Create an MP4 output at the given <path>
+#   Output <path>.webm              Create a WebM output at the given <path>
+#
+# Require:
+#   Require <string>                Ensure a program is on the $PATH to proceed
+#
+# Settings:
+#   Set FontSize <number>           Set the font size of the terminal
+#   Set FontFamily <string>         Set the font family of the terminal
+#   Set Height <number>             Set the height of the terminal
+#   Set Width <number>              Set the width of the terminal
+#   Set LetterSpacing <float>       Set the font letter spacing (tracking)
+#   Set LineHeight <float>          Set the font line height
+#   Set LoopOffset <float>%         Set the starting frame offset for the GIF loop
+#   Set Theme <json|string>         Set the theme of the terminal
+#   Set Padding <number>            Set the padding of the terminal
+#   Set Framerate <number>          Set the framerate of the recording
+#   Set PlaybackSpeed <float>       Set the playback speed of the recording
+#   Set MarginFill <file|#000000>   Set the file or color the margin will be filled with.
+#   Set Margin <number>             Set the size of the margin. Has no effect if MarginFill isn't set.
+#   Set BorderRadius <number>       Set terminal border radius, in pixels.
+#   Set WindowBar <string>          Set window bar type. (one of: Rings, RingsRight, Colorful, ColorfulRight)
+#   Set WindowBarSize <number>      Set window bar size, in pixels. Default is 40.
+#   Set TypingSpeed <time>          Set the typing speed of the terminal. Default is 50ms.
+#
+# Sleep:
+#   Sleep <time>                    Sleep for a set amount of <time> in seconds
+#
+# Type:
+#   Type[@<time>] "<characters>"    Type <characters> into the terminal with a
+#                                   <time> delay between each character
+#
+# Keys:
+#   Escape[@<time>] [number]        Press the Escape key
+#   Backspace[@<time>] [number]     Press the Backspace key
+#   Delete[@<time>] [number]        Press the Delete key
+#   Insert[@<time>] [number]        Press the Insert key
+#   Down[@<time>] [number]          Press the Down key
+#   Enter[@<time>] [number]         Press the Enter key
+#   Space[@<time>] [number]         Press the Space key
+#   Tab[@<time>] [number]           Press the Tab key
+#   Left[@<time>] [number]          Press the Left Arrow key
+#   Right[@<time>] [number]         Press the Right Arrow key
+#   Up[@<time>] [number]            Press the Up Arrow key
+#   Down[@<time>] [number]          Press the Down Arrow key
+#   PageUp[@<time>] [number]        Press the Page Up key
+#   PageDown[@<time>] [number]      Press the Page Down key
+#   Ctrl+<key>                      Press the Control key + <key> (e.g. Ctrl+C)
+#
+# Display:
+#   Hide                            Hide the subsequent commands from the output
+#   Show                            Show the subsequent commands in the output
+
+Output doc/img/s3hub-ls-objects.gif
+
+Require s3hub
+
+Set Shell "bash"
+Set FontSize 26
+Set Width 1500
+Set Height 800
+
+Type "export AWS_PROFILE=localstack" Sleep 200ms  Enter
+Type "s3hub ls test-bucket-on-localstack" Sleep 500ms  Enter
+Sleep 5s

doc/s3hub/README.md

@@ -1,11 +1,11 @@
-## s3hub - user-friendly s3 management tool
+## s3hub - user-friendly S3 management tool
 The s3hub command provides following features:
-- [x] Create a bucket
-- [x] List buckets
-- [ ] List contents of a bucket
-- [ ] Copy files to a bucket
-- [x] Delete contents from a bucket
-- [x] Delete a bucket
+- [x] Create a S3 bucket
+- [x] List S3 buckets
+- [x] List S3 objects in the S3 bucket
+- [ ] Copy files to S3 bucket
+- [x] Delete contents from the S3 bucket
+- [x] Delete the S3 bucket
 - [ ] Interactive mode
 
 ## How to install
@@ -37,8 +37,8 @@ s3hub ls
 s3hub ls ${YOUR_BUCKET_NAME}
 ```
 
-> [!IMPORTANT]  
-> Not implemented yet.
+![ls_bucket_objects](../img/s3hub-ls-objects.gif)
+
 
 ### Copy files to a bucket
 From local to S3: