315 lines
8.0 KiB
Python
315 lines
8.0 KiB
Python
#
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# upip - Package manager for MicroPython
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#
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# Copyright (c) 2015-2018 Paul Sokolovsky
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#
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# Licensed under the MIT license.
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#
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import sys
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import gc
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import uos as os
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import uerrno as errno
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import ujson as json
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import uzlib
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import upip_utarfile as tarfile
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gc.collect()
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debug = False
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install_path = None
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cleanup_files = []
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gzdict_sz = 16 + 15
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file_buf = bytearray(512)
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class NotFoundError(Exception):
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pass
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def op_split(path):
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if path == "":
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return ("", "")
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r = path.rsplit("/", 1)
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if len(r) == 1:
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return ("", path)
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head = r[0]
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if not head:
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head = "/"
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return (head, r[1])
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def op_basename(path):
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return op_split(path)[1]
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# Expects *file* name
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def _makedirs(name, mode=0o777):
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ret = False
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s = ""
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comps = name.rstrip("/").split("/")[:-1]
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if comps[0] == "":
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s = "/"
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for c in comps:
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if s and s[-1] != "/":
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s += "/"
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s += c
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try:
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os.mkdir(s)
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ret = True
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except OSError as e:
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if e.args[0] != errno.EEXIST and e.args[0] != errno.EISDIR:
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raise
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ret = False
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return ret
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def save_file(fname, subf):
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global file_buf
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with open(fname, "wb") as outf:
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while True:
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sz = subf.readinto(file_buf)
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if not sz:
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break
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outf.write(file_buf, sz)
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def install_tar(f, prefix):
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meta = {}
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for info in f:
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#print(info)
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fname = info.name
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try:
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fname = fname[fname.index("/") + 1:]
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except ValueError:
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fname = ""
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save = True
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for p in ("setup.", "PKG-INFO", "README"):
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#print(fname, p)
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if fname.startswith(p) or ".egg-info" in fname:
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if fname.endswith("/requires.txt"):
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meta["deps"] = f.extractfile(info).read()
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save = False
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if debug:
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print("Skipping", fname)
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break
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if save:
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outfname = prefix + fname
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if info.type != tarfile.DIRTYPE:
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if debug:
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print("Extracting " + outfname)
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_makedirs(outfname)
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subf = f.extractfile(info)
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save_file(outfname, subf)
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return meta
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def expandhome(s):
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if "~/" in s:
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h = os.getenv("HOME")
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s = s.replace("~/", h + "/")
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return s
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import ussl
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import usocket
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warn_ussl = True
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def url_open(url):
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global warn_ussl
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if debug:
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print(url)
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proto, _, host, urlpath = url.split('/', 3)
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try:
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ai = usocket.getaddrinfo(host, 443, 0, usocket.SOCK_STREAM)
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except OSError as e:
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fatal("Unable to resolve %s (no Internet?)" % host, e)
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#print("Address infos:", ai)
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ai = ai[0]
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s = usocket.socket(ai[0], ai[1], ai[2])
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try:
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#print("Connect address:", addr)
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s.connect(ai[-1])
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if proto == "https:":
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s = ussl.wrap_socket(s, server_hostname=host)
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if warn_ussl:
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print("Warning: %s SSL certificate is not validated" % host)
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warn_ussl = False
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# MicroPython rawsocket module supports file interface directly
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s.write("GET /%s HTTP/1.0\r\nHost: %s\r\n\r\n" % (urlpath, host))
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l = s.readline()
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protover, status, msg = l.split(None, 2)
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if status != b"200":
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if status == b"404" or status == b"301":
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raise NotFoundError("Package not found")
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raise ValueError(status)
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while 1:
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l = s.readline()
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if not l:
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raise ValueError("Unexpected EOF in HTTP headers")
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if l == b'\r\n':
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break
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except Exception as e:
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s.close()
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raise e
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return s
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def get_pkg_metadata(name):
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f = url_open("https://pypi.org/pypi/%s/json" % name)
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try:
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return json.load(f)
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finally:
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f.close()
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def fatal(msg, exc=None):
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print("Error:", msg)
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if exc and debug:
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raise exc
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sys.exit(1)
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def install_pkg(pkg_spec, install_path):
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data = get_pkg_metadata(pkg_spec)
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latest_ver = data["info"]["version"]
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packages = data["releases"][latest_ver]
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del data
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gc.collect()
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assert len(packages) == 1
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package_url = packages[0]["url"]
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print("Installing %s %s from %s" % (pkg_spec, latest_ver, package_url))
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package_fname = op_basename(package_url)
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f1 = url_open(package_url)
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try:
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f2 = uzlib.DecompIO(f1, gzdict_sz)
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f3 = tarfile.TarFile(fileobj=f2)
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meta = install_tar(f3, install_path)
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finally:
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f1.close()
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del f3
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del f2
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gc.collect()
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return meta
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def install(to_install, install_path=None):
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# Calculate gzip dictionary size to use
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global gzdict_sz
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sz = gc.mem_free() + gc.mem_alloc()
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if sz <= 65536:
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gzdict_sz = 16 + 12
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if install_path is None:
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install_path = get_install_path()
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if install_path[-1] != "/":
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install_path += "/"
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if not isinstance(to_install, list):
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to_install = [to_install]
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print("Installing to: " + install_path)
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# sets would be perfect here, but don't depend on them
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installed = []
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try:
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while to_install:
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if debug:
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print("Queue:", to_install)
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pkg_spec = to_install.pop(0)
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if pkg_spec in installed:
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continue
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meta = install_pkg(pkg_spec, install_path)
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installed.append(pkg_spec)
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if debug:
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print(meta)
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deps = meta.get("deps", "").rstrip()
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if deps:
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deps = deps.decode("utf-8").split("\n")
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to_install.extend(deps)
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except Exception as e:
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print("Error installing '{}': {}, packages may be partially installed".format(
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pkg_spec, e),
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file=sys.stderr)
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def get_install_path():
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global install_path
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if install_path is None:
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# sys.path[0] is current module's path
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install_path = sys.path[1]
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install_path = expandhome(install_path)
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return install_path
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def cleanup():
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for fname in cleanup_files:
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try:
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os.unlink(fname)
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except OSError:
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print("Warning: Cannot delete " + fname)
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def help():
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print("""\
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upip - Simple PyPI package manager for MicroPython
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Usage: micropython -m upip install [-p <path>] <package>... | -r <requirements.txt>
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import upip; upip.install(package_or_list, [<path>])
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If <path> is not given, packages will be installed into sys.path[1]
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(can be set from MICROPYPATH environment variable, if current system
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supports that).""")
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print("Current value of sys.path[1]:", sys.path[1])
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print("""\
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Note: only MicroPython packages (usually, named micropython-*) are supported
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for installation, upip does not support arbitrary code in setup.py.
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""")
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def main():
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global debug
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global install_path
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install_path = None
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if len(sys.argv) < 2 or sys.argv[1] == "-h" or sys.argv[1] == "--help":
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help()
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return
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if sys.argv[1] != "install":
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fatal("Only 'install' command supported")
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to_install = []
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i = 2
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while i < len(sys.argv) and sys.argv[i][0] == "-":
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opt = sys.argv[i]
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i += 1
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if opt == "-h" or opt == "--help":
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help()
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return
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elif opt == "-p":
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install_path = sys.argv[i]
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i += 1
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elif opt == "-r":
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list_file = sys.argv[i]
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i += 1
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with open(list_file) as f:
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while True:
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l = f.readline()
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if not l:
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break
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if l[0] == "#":
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continue
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to_install.append(l.rstrip())
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elif opt == "--debug":
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debug = True
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else:
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fatal("Unknown/unsupported option: " + opt)
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to_install.extend(sys.argv[i:])
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if not to_install:
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help()
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return
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install(to_install)
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if not debug:
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cleanup()
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if __name__ == "__main__":
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main()
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