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