Add proposal for official CLI project for Harbor

Signed-off-by: Akshat <[email protected]>

Author: akshatdalton

proposals/new/cli.md

@@ -0,0 +1,112 @@
+# Proposal: Add Official CLI for Harbor
+
+Author: Akshat/[akshatdalton](https://github.com/akshatdalton)
+
+## Abstract
+
+This proposal aims to add the official CLI for Harbor. It will have basic features like user login and other CRUD operations like create project, get project, list projects, etc.
+
+## Background
+
+There are some unofficial CLI projects to interact with Harbor API, and now Harbor wants to provide official support for CLI.
+
+## Goals
+
+- Implement official CLI for Harbor.
+- Support basic CRUD operations like create project, get project, list projects, etc.
+
+## Implementation
+
+### Directory structure
+
+```
+cli/
+├── LICENSE
+├── README.md
+├── cmd
+│   ├── login
+│   │   └── login.go
+│   ├── project
+│   │   └── get_project.go
+│   ├── root.go
+│   └── utils
+│       └── utils.go
+├── go.mod
+├── go.sum
+└── main.go
+```
+
+I will be using [cobra](https://github.com/spf13/cobra) to make this CLI tool and it will have the directory structure as shown above. Each of the commands will be treated as an individual sub-package.
+
+```
+cmd/
+├── project
+    ├── create_project.go
+    ├── create_project_test.go
+    ├── delete_project.go
+    ├── delete_project_test.go
+    ├── .
+    ├── .
+    ├── .
+```
+
+<br>
+
+User credentials will be stored in `~/.harbor/config/auth.yaml` upon sign in and the same will be used to read the credentials to make the API calls.
+
+<br>
+
+[harbor/go-client](https://github.com/goharbor/go-client) will be used to make any API calls for any given server address.
+
+### Example Implementation for `get_project.go`
+
+```go
+package project
+
+import (
+	"context"
+
+	"github.com/akshatdalton/harbor-cli/cmd/utils"
+	"github.com/goharbor/go-client/pkg/sdk/v2.0/client/project"
+	"github.com/spf13/cobra"
+)
+
+type getProjectOptions struct {
+	projectNameOrID string
+}
+
+// NewGetProjectCommand creates a new `harbor get project` command
+func NewGetProjectCommand() *cobra.Command {
+	var opts getProjectOptions
+
+	cmd := &cobra.Command{
+		Use:   "project [NAME|ID]",
+		Short: "get project by name or id",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			opts.projectNameOrID = args[0]
+			return runGetProject(opts)
+		},
+	}
+
+	return cmd
+}
+
+func runGetProject(opts getProjectOptions) error {
+	client := utils.GetClient(nil)
+	ctx := context.Background()
+	response, err := client.Project.GetProject(ctx, &project.GetProjectParams{ProjectNameOrID: opts.projectNameOrID})
+
+	if err != nil {
+		return err
+	}
+
+	utils.PrintPayloadInJSONFormat(response)
+	return nil
+}
+```
+
+We will follow the verb-noun syntax, for example:
+```
+harbor get project 1
+```