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init flist_cli_v app, todo: set push function

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<h1> Flist CLI in Vlang </h1>
<h2>Table of Contents</h2>
- [Introduction](#introduction)
- [Installation](#installation)
- [Prerequisites](#prerequisites)
- [Building and Installing](#building-and-installing)
- [Usage](#usage)
- [OS-Specific Instructions](#os-specific-instructions)
- [Windows](#windows)
- [macOS and Linux](#macos-and-linux)
- [Troubleshooting](#troubleshooting)
- [Development](#development)
- [Contributing](#contributing)
- [License](#license)
---
## Introduction
Flist CLI is a tool that turns Dockerfiles and Docker images directly into Flist on the TF Flist Hub, passing through Docker Hub.
## Installation
### Prerequisites
- [V programming language](https://vlang.io/) (latest version) installed on your system
- Docker installed and running
- Docker Hub account
- TF Hub account and token
### Building and Installing
1. Clone this repository, build the project, run the install command and set the CLI to your path:
```
git clone https://github.com/yourusername/flist-cli.git
cd flist-cli
v -o flist .
sudo ./flist install
```
This will copy the `flist` executable to the appropriate system location.
## Usage
After installation, you can use the `flist` command followed by various subcommands:
```
flist <command> [arguments]
```
Available commands:
- `install`: Install the Flist CLI
- `uninstall`: Uninstall the Flist CLI
- `login`: Log in to Docker Hub and save the Flist Hub token
- `logout`: Log out of Docker Hub and remove the Flist Hub token
- `push <image>:<tag>`: Build and push a Docker image, then convert and push it as an flist
- `delete <flist_name>`: Delete an flist from Flist Hub
- `rename <flist_name> <new_flist_name>`: Rename an flist in Flist Hub
- `help`: Display help information
## OS-Specific Instructions
### Windows
1. Run Command Prompt or PowerShell as Administrator.
2. Ensure Docker Desktop is installed and running.
3. Use a Docker-enabled terminal for all Docker-related commands.
4. The `flist` executable will be installed to:
```
C:\Program Files\flist\flist.exe
```
### macOS and Linux
1. Ensure Docker is installed and the Docker daemon is running.
2. The `flist` executable will be installed to:
```
/usr/local/bin/flist
```
3. You may need to use `sudo` for installation and certain operations:
```
sudo ./flist install
sudo flist uninstall
sudo flist <command>
```
## Troubleshooting
- If you encounter permission issues, ensure you're running the command with appropriate privileges (e.g., as administrator on Windows or with `sudo` on Unix-like systems).
- Make sure Docker is running before using Flist CLI commands.
- If you face issues with Docker commands, try logging out and logging back in to refresh your Docker credentials.
- If you encounter compilation errors, ensure you have the latest version of V installed.
## Development
To modify the Flist CLI:
1. Make your changes to the `flist.v` file.
2. Rebuild the project using `v -o flist .`
3. Test your changes thoroughly across different operating systems if possible.
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
## License
[Apache 2.0 License](LICENSE)

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import os
import json
import net.http
import term
const (
token_file = os.join_path(os.home_dir(), '.config', 'tfhubtoken')
binary_location = if os.user_os() == 'windows' {
'C:\\Program Files\\flist\\flist.exe'
} else {
'/usr/local/bin/flist'
}
)
fn error_message(msg string) {
println(term.bold(term.red('Error: ')) + msg)
println(term.yellow('Run \'flist help\' for usage information.'))
}
fn install() {
println('Installing Flist CLI...')
current_exe := os.executable()
if os.exists(current_exe) {
os.mkdir_all(os.dir(binary_location)) or { panic(err) }
os.cp(current_exe, binary_location) or { panic(err) }
os.chmod(binary_location, 0o755) or { panic(err) }
println('Flist CLI has been installed to ' + binary_location)
println('You can now use it by running \'flist help\'')
} else {
error_message('Cannot find the executable file')
exit(1)
}
}
fn uninstall() {
println('Uninstalling Flist CLI...')
if os.exists(binary_location) {
os.rm(binary_location) or { panic(err) }
println('Flist CLI has been removed from ' + binary_location)
} else {
println('Flist CLI is not installed at ' + binary_location)
}
}
fn login() {
mut token_exists := os.exists(token_file)
mut docker_logged_in := false
docker_user_result := os.execute('docker system info | grep \'Username\' | cut -d \' \' -f 3')
if docker_user_result.exit_code == 0 && docker_user_result.output.trim_space() != '' {
docker_logged_in = true
}
if token_exists && docker_logged_in {
println('You are already logged in to Docker Hub and your Flist Hub token is present.')
return
}
if !token_exists {
tfhub_token := os.input('Please enter your tfhub token: ')
os.write_file(token_file, tfhub_token) or { panic(err) }
println('Token saved in ' + token_file)
} else {
println('Your Flist Hub token is already saved.')
}
if !docker_logged_in {
println('Logging in to Docker Hub...')
exit_code := os.system('docker login')
if exit_code == 0 {
println('Successfully logged in to Docker Hub.')
} else {
error_message('Failed to log in to Docker Hub.')
return
}
} else {
println('Already logged in to Docker Hub.')
}
println('Login process completed.')
}
fn logout() {
if !os.exists(token_file) {
error_message('You are not logged in.')
return
}
os.rm(token_file) or { panic(err) }
println('Logging out from Docker Hub...')
exit_code := os.system('docker logout')
if exit_code != 0 {
error_message('Failed to log out from Docker Hub.')
}
println('You are now logged out of Docker Hub and your Flist Hub token has been removed.')
}
fn push(tag string) {
println('Logging in to Docker Hub...')
if os.system('sudo docker login') != 0 {
error_message('Failed to log in to Docker Hub.')
exit(1)
}
docker_user_result := os.execute('sudo docker system info | grep \'Username\' | cut -d \' \' -f 3')
if docker_user_result.exit_code != 0 || docker_user_result.output.trim_space() == '' {
error_message('Failed to get Docker username. Please ensure you are logged in to Docker.')
exit(1)
}
docker_user := docker_user_result.output.trim_space()
println('Docker username: $docker_user')
full_tag := '${docker_user}/${tag}'
tfhub_token := os.read_file(token_file) or {
error_message('No token found. Please run \'flist login\' first.')
exit(1)
}
println('Starting Docker build')
if os.system('sudo docker buildx build -t ${full_tag} .') != 0 {
error_message('Docker build failed')
exit(1)
}
println('Finished local Docker build, now pushing to Docker Hub')
if os.system('sudo docker push ${full_tag}') != 0 {
error_message('Docker push failed')
exit(1)
}
println('Converting Docker image to flist now...')
mut headers := http.new_header()
headers.add_custom('Authorization', 'bearer ${tfhub_token}') or {
error_message('Failed to add authorization header')
exit(1)
}
form_data := {
'image': full_tag
}
http.post_form('https://hub.grid.tf/api/flist/me/docker', form_data) or {
error_message('Failed to convert Docker image to flist: ${err}')
exit(1)
}
println('Conversion attempt completed, check above for success')
println('Here are paths matching the tag name:')
url := 'https://hub.grid.tf/api/flist/${docker_user}'
flist_resp := http.get(url) or {
error_message('Failed to fetch flists: ${err}')
exit(1)
}
flist_json := json.decode([]map[string]string, flist_resp.body) or {
error_message('Failed to parse flists response: ${err}')
exit(1)
}
tag_name := tag.all_before(':')
for flist in flist_json {
flist_name := flist['name'] or { continue }
if flist_name.contains(tag_name) {
println('https://hub.grid.tf/${docker_user}/${flist_name}')
}
}
}
fn delete(flist_name string) {
tfhub_token := os.read_file(token_file) or {
error_message('No token found. Please run \'flist login\' first.')
exit(1)
}
println('Deleting flist: ' + flist_name)
url := 'https://hub.grid.tf/api/flist/me/' + flist_name
config := http.FetchConfig{
url: url
method: .delete
header: http.new_header(key: .authorization, value: 'bearer ' + tfhub_token)
}
response := http.fetch(config) or {
error_message('Failed to send delete request: ' + err.msg())
exit(1)
}
if response.status_code == 200 {
println('Deletion request sent successfully.')
} else {
error_message('Deletion request failed with status code: ' + response.status_code.str())
}
}
fn rename(flist_name string, new_flist_name string) {
tfhub_token := os.read_file(token_file) or {
error_message('No token found. Please run \'flist login\' first.')
exit(1)
}
println('Renaming flist: ' + flist_name + ' to ' + new_flist_name)
url := 'https://hub.grid.tf/api/flist/me/' + flist_name + '/rename/' + new_flist_name
config := http.FetchConfig{
url: url
method: .get
header: http.new_header(key: .authorization, value: 'bearer ' + tfhub_token)
}
response := http.fetch(config) or {
error_message('Failed to send rename request: ' + err.msg())
exit(1)
}
if response.status_code == 200 {
println('Rename request sent successfully.')
} else {
error_message('Rename request failed with status code: ' + response.status_code.str())
}
}
fn help() {
println(term.bold(term.green('\n Welcome to the Flist CLI!')))
println('This tool turns Dockerfiles and Docker images directly into Flist on the TF Flist Hub, passing by the Docker Hub.\n')
println(term.bold('Available commands:'))
println(term.blue(' install ') + '- Install the Flist CLI')
println(term.blue(' uninstall ') + '- Uninstall the Flist CLI')
println(term.blue(' login ') + '- Log in to Docker Hub and save the Flist Hub token')
println(term.blue(' logout ') + '- Log out of Docker Hub and remove the Flist Hub token')
println(term.blue(' push ') + '- Build and push a Docker image to Docker Hub, then convert and push it as an flist to Flist Hub')
println(term.blue(' delete ') + '- Delete an flist from Flist Hub')
println(term.blue(' rename ') + '- Rename an flist in Flist Hub')
println(term.blue(' help ') + '- Display this help message\n')
println(term.bold('Usage:'))
println(' flist install')
println(' flist uninstall')
println(' flist login')
println(' flist logout')
println(' flist push <image>:<tag>')
println(' flist delete <flist_name>')
println(' flist rename <flist_name> <new_flist_name>')
println(' flist help')
}
fn main() {
if os.args.len == 1 {
help()
return
}
match os.args[1] {
'install' { install() }
'uninstall' { uninstall() }
'push' {
if os.args.len == 3 {
push(os.args[2])
} else {
error_message('Incorrect number of arguments for \'push\'.')
exit(1)
}
}
'login' { login() }
'logout' { logout() }
'delete' {
if os.args.len == 3 {
delete(os.args[2])
} else {
error_message('Incorrect number of arguments for \'delete\'.')
exit(1)
}
}
'rename' {
if os.args.len == 4 {
rename(os.args[2], os.args[3])
} else {
error_message('Incorrect number of arguments for \'rename\'.')
exit(1)
}
}
'help' { help() }
else {
error_message('Unknown command: ' + os.args[1])
exit(1)
}
}
}