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# Micropython package installer
# Ported from micropython-lib/micropython/mip/mip.py.
# MIT license; Copyright (c) 2022 Jim Mussared
import urllib.error
import urllib.request
import json
import tempfile
import os
from .commands import CommandError, show_progress_bar
_PACKAGE_INDEX = "https://micropython.org/pi/v2"
# This implements os.makedirs(os.dirname(path))
def _ensure_path_exists(transport, path):
split = path.split("/")
# Handle paths starting with "/".
if not split[0]:
split.pop(0)
split[0] = "/" + split[0]
prefix = ""
for i in range(len(split) - 1):
prefix += split[i]
if not transport.fs_exists(prefix):
transport.fs_mkdir(prefix)
prefix += "/"
def _rewrite_url(url, branch=None):
if not branch:
branch = "HEAD"
if url.startswith("github:"):
url = url[7:].split("/")
url = (
"https://raw.githubusercontent.com/"
+ url[0]
+ "/"
+ url[1]
+ "/"
+ branch
+ "/"
+ "/".join(url[2:])
)
elif url.startswith("gitlab:"):
url = url[7:].split("/")
url = (
"https://gitlab.com/"
+ url[0]
+ "/"
+ url[1]
+ "/-/raw/"
+ branch
+ "/"
+ "/".join(url[2:])
)
return url
def _download_file(transport, url, dest):
try:
with urllib.request.urlopen(url) as src:
data = src.read()
print("Installing:", dest)
_ensure_path_exists(transport, dest)
transport.fs_writefile(dest, data, progress_callback=show_progress_bar)
except urllib.error.HTTPError as e:
if e.status == 404:
raise CommandError(f"File not found: {url}")
else:
raise CommandError(f"Error {e.status} requesting {url}")
except urllib.error.URLError as e:
raise CommandError(f"{e.reason} requesting {url}")
def _install_json(transport, package_json_url, index, target, version, mpy):
try:
with urllib.request.urlopen(_rewrite_url(package_json_url, version)) as response:
package_json = json.load(response)
except urllib.error.HTTPError as e:
if e.status == 404:
raise CommandError(f"Package not found: {package_json_url}")
else:
raise CommandError(f"Error {e.status} requesting {package_json_url}")
except urllib.error.URLError as e:
raise CommandError(f"{e.reason} requesting {package_json_url}")
for target_path, short_hash in package_json.get("hashes", ()):
fs_target_path = target + "/" + target_path
file_url = f"{index}/file/{short_hash[:2]}/{short_hash}"
_download_file(transport, file_url, fs_target_path)
for target_path, url in package_json.get("urls", ()):
fs_target_path = target + "/" + target_path
_download_file(transport, _rewrite_url(url, version), fs_target_path)
for dep, dep_version in package_json.get("deps", ()):
_install_package(transport, dep, index, target, dep_version, mpy)
def _install_package(transport, package, index, target, version, mpy):
if (
package.startswith("http://")
or package.startswith("https://")
or package.startswith("github:")
or package.startswith("gitlab:")
):
if package.endswith(".py") or package.endswith(".mpy"):
print(f"Downloading {package} to {target}")
_download_file(
transport, _rewrite_url(package, version), target + "/" + package.rsplit("/")[-1]
)
return
else:
if not package.endswith(".json"):
if not package.endswith("/"):
package += "/"
package += "package.json"
print(f"Installing {package} to {target}")
else:
if not version:
version = "latest"
print(f"Installing {package} ({version}) from {index} to {target}")
mpy_version = "py"
if mpy:
transport.exec("import sys")
mpy_version = transport.eval("getattr(sys.implementation, '_mpy', 0) & 0xFF") or "py"
package = f"{index}/package/{mpy_version}/{package}/{version}.json"
_install_json(transport, package, index, target, version, mpy)
def do_mip(state, args):
state.did_action()
if args.command[0] == "install":
state.ensure_raw_repl()
for package in args.packages:
version = None
if "@" in package:
package, version = package.split("@")
print("Install", package)
if args.index is None:
args.index = _PACKAGE_INDEX
if args.target is None:
state.transport.exec("import sys")
lib_paths = [p for p in state.transport.eval("sys.path") if p.endswith("/lib")]
if lib_paths and lib_paths[0]:
args.target = lib_paths[0]
else:
raise CommandError(
"Unable to find lib dir in sys.path, use --target to override"
)
if args.mpy is None:
args.mpy = True
try:
_install_package(
state.transport,
package,
args.index.rstrip("/"),
args.target,
version,
args.mpy,
)
except CommandError:
print("Package may be partially installed")
raise
print("Done")
else:
raise CommandError(f"mip: '{args.command[0]}' is not a command")
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