+++ /dev/null
-# This file is part of NIT ( http://www.nitlanguage.org ).
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Nit package manager command line interface
-module picnit
-
-import opts
-import prompt
-import ini
-import curl
-
-import picnit_shared
-
-# Command line action, passed after `picnit`
-abstract class Command
-
- # Short name of the command, specified in the command line
- fun name: String is abstract
-
- # Short usage description
- fun usage: String is abstract
-
- # Command description
- fun description: String is abstract
-
- # Apply this command consiering the `args` that follow
- fun apply(args: Array[String]) do end
-
- private var all_commands: Map[String, Command]
-
- init do all_commands[name] = self
-
- # Print the help message for this command
- fun print_local_help
- do
- print "usage: {usage}"
- print ""
- print " {description}"
- end
-end
-
-# Install a new package
-class CommandInstall
- super Command
-
- redef fun name do return "install"
- redef fun usage do return "picnit install [package0[=version] [package1 ...]]"
- redef fun description do return "Install packages by name, Git repository address or from the local package.ini"
-
- # Packages installed in this run (identified by the full path)
- private var installed = new Array[String]
-
- redef fun apply(args)
- do
- if args.not_empty then
- # Install each package
- for arg in args do
- # Parse each arg as an import string, with versions and commas
- install_packages arg
- end
- else
- # Install packages from local package.ini
- var ini_path = "package.ini"
- if not ini_path.file_exists then
- print_error "Local `package.ini` not found."
- print_local_help
- exit 1
- end
-
- var ini = new ConfigTree(ini_path)
- var import_line = ini["package.import"]
- if import_line == null then
- print_error "The local `package.ini` declares no external dependencies."
- exit 0
- abort
- end
-
- install_packages import_line
- end
- end
-
- # Install packages defined by the `import_line`
- private fun install_packages(import_line: String)
- do
- var imports = import_line.parse_import
- for name, ext_package in imports do
- install_package(ext_package.id, ext_package.version)
- end
- end
-
- # Install the `package_id` at `version`
- private fun install_package(package_id: String, version: nullable String)
- do
- if package_id.is_package_name then
- # Ask a centralized server
- # TODO choose a future safe URL
- # TODO customizable server list
- # TODO parse ini file in memory
-
- var url = "https://xymus.net/picnit/{package_id}.ini"
- var ini_path = "/tmp/{package_id}.ini"
-
- if verbose then print "Looking for a package description at '{url}'"
-
- var request = new CurlHTTPRequest(url)
- request.verbose = verbose
- var response = request.download_to_file(ini_path)
-
- if response isa CurlResponseFailed then
- print_error "Failed to contact the remote server at '{url}': {response.error_msg} ({response.error_code})"
- exit 1
- end
-
- assert response isa CurlFileResponseSuccess
- if response.status_code == 404 then
- print_error "Package '{package_id}' not found on the server"
- exit 1
- else if response.status_code != 200 then
- print_error "Server side error: {response.status_code}"
- exit 1
- end
-
- if verbose then
- print "Found a package description:"
- print ini_path.to_path.read_all
- end
-
- var ini = new ConfigTree(ini_path)
- var git_repo = ini["upstream.git"]
- if git_repo == null then
- print_error "Package description invalid, or it does not declare a Git repository"
- exit 1
- abort
- end
-
- install_from_git(git_repo, package_id, version)
- else
- var name = package_id.git_name
- if name != null and name != "." and not name.is_empty then
- name = name.to_lower
- install_from_git(package_id, name, version)
- else
- print_error "Failed to infer the package name"
- exit 1
- end
- end
- end
-
- private fun install_from_git(git_repo, name: String, version: nullable String)
- do
- check_git
-
- var target_dir = picnit_lib_dir / name
- if version != null then target_dir += "=" + version
- if installed.has(target_dir) then
- # Ignore packages installed in this run
- return
- end
- installed.add target_dir
-
- if target_dir.file_exists then
- # Warn about packages previously installed,
- # install dependencies anyway in case of a previous error.
- print_error "Package '{name}' is already installed"
- else
- # Actually install it
- var cmd_branch = ""
- if version != null then cmd_branch = "--branch '{version}'"
-
- var cmd = "git clone --depth 1 {cmd_branch} {git_repo.escape_to_sh} {target_dir.escape_to_sh}"
- if verbose then print "+ {cmd}"
-
- if "NIT_TESTING".environ == "true" then
- # Silence git output when testing
- cmd += " 2> /dev/null"
- end
-
- var proc = new Process("sh", "-c", cmd)
- proc.wait
-
- if proc.status != 0 then
- print_error "Install of '{name}' failed"
- exit 1
- end
- end
-
- # Recursive install
- var ini = new ConfigTree(target_dir/"package.ini")
- var import_line = ini["package.import"]
- if import_line != null then
- install_packages import_line
- end
- end
-end
-
-# Upgrade a package
-class CommandUpgrade
- super Command
-
- redef fun name do return "upgrade"
- redef fun usage do return "picnit upgrade <package>"
- redef fun description do return "Upgrade a package"
-
- redef fun apply(args)
- do
- if args.length != 1 then
- print_local_help
- exit 1
- end
-
- var name = args.first
- var target_dir = picnit_lib_dir / name
-
- if not target_dir.file_exists or not target_dir.to_path.is_dir then
- print_error "Package not found"
- exit 1
- end
-
- check_git
-
- var cmd = "cd {target_dir.escape_to_sh}; git pull"
- if verbose then print "+ {cmd}"
-
- var proc = new Process("sh", "-c", cmd)
- proc.wait
-
- if proc.status != 0 then
- print_error "Upgrade failed"
- exit 1
- end
- end
-end
-
-# Uninstall a package
-class CommandUninstall
- super Command
-
- redef fun name do return "uninstall"
- redef fun usage do return "picnit uninstall <package>"
- redef fun description do return "Uninstall a package"
-
- redef fun apply(args)
- do
- if args.length != 1 then
- print_local_help
- exit 1
- end
-
- var name = args.first
- var target_dir = picnit_lib_dir / name
-
- if not target_dir.file_exists or not target_dir.to_path.is_dir then
- print_error "Package not found"
- exit 1
- end
-
- # Ask confirmation
- var response = prompt("Delete {target_dir.escape_to_sh}? [Y/n] ")
- var accept = response != null and
- (response.to_lower == "y" or response.to_lower == "yes" or response == "")
- if not accept then return
-
- var cmd = "rm -rf {target_dir.escape_to_sh}"
- if verbose then print "+ {cmd}"
-
- var proc = new Process("sh", "-c", cmd)
- proc.wait
-
- if proc.status != 0 then
- print_error "Uninstall failed"
- exit 1
- end
- end
-end
-
-# List all installed packages
-class CommandList
- super Command
-
- redef fun name do return "list"
- redef fun usage do return "picnit list"
- redef fun description do return "List installed packages"
-
- redef fun apply(args)
- do
- var files = picnit_lib_dir.files
- for file in files do
- var ini_path = picnit_lib_dir / file / "package.ini"
- if verbose then print "- Reading ini file at {ini_path}"
- var ini = new ConfigTree(ini_path)
- var tags = ini["package.tags"]
-
- if tags != null then
- print "{file.justify(15, 0.0)} {tags}"
- else
- print file
- end
- end
- end
-end
-
-# Show general help or help specific to a command
-class CommandHelp
- super Command
-
- redef fun name do return "help"
- redef fun usage do return "picnit help [command]"
- redef fun description do return "Show general help message or the help for a command"
-
- redef fun apply(args)
- do
- # Try first to help about a valid action
- if args.length == 1 then
- var command = commands.get_or_null(args.first)
- if command != null then
- command.print_local_help
- return
- end
- end
-
- print_help
- end
-end
-
-redef class Sys
-
- # General command line options
- var opts = new OptionContext
-
- # Help option
- var opt_help = new OptionBool("Show this help message", "--help", "-h")
-
- # Verbose mode option
- var opt_verbose = new OptionBool("Print more information", "--verbose", "-v")
- private fun verbose: Bool do return opt_verbose.value
-
- # All command line actions, mapped to their short `name`
- var commands = new Map[String, Command]
-
- private var command_install = new CommandInstall(commands)
- private var command_list = new CommandList(commands)
- private var command_update = new CommandUpgrade(commands)
- private var command_uninstall = new CommandUninstall(commands)
- private var command_help = new CommandHelp(commands)
-end
-
-redef fun picnit_lib_dir
-do
- if "NIT_TESTING".environ == "true" then
- return "/tmp/picnit-test-" + "NIT_TESTING_ID".environ
- else return super
-end
-
-# Print the general help message
-private fun print_help
-do
- print "usage: picnit <command> [options]"
- print ""
-
- print "commands:"
- for command in commands.values do
- print " {command.name.justify(11, 0.0)} {command.description}"
- end
- print ""
-
- print "options:"
- opts.usage
-end
-
-# Check if `git` is available, exit if not
-private fun check_git
-do
- var proc = new ProcessReader("git", "--version")
- proc.wait
- proc.close
-
- if proc.status != 0 then
- print_error "Please install `git`"
- exit 1
- end
-end
-
-# Parse main options
-opts.add_option(opt_help, opt_verbose)
-opts.parse
-var rest = opts.rest
-
-if opt_help.value then
- print_help
- exit 0
-end
-
-if opts.errors.not_empty then
- for error in opts.errors do print error
- print ""
- print_help
- exit 1
-end
-
-if rest.is_empty then
- print_help
- exit 1
-end
-
-# Find and apply action
-var action_name = rest.shift
-var action = commands.get_or_null(action_name)
-if action != null then
- action.apply rest
-else
- print_help
- exit 1
-end
nitlanguage / nit.git / blobdiff