|
| 1 | +import sys |
| 2 | +import os |
| 3 | +import os.path |
| 4 | +import errno |
| 5 | +import gzip |
| 6 | +try: |
| 7 | + import utarfile as tarfile |
| 8 | +except ImportError: |
| 9 | + import tarfile |
| 10 | +try: |
| 11 | + import ujson as json |
| 12 | +except ImportError: |
| 13 | + import json |
| 14 | + |
| 15 | + |
| 16 | +DEFAULT_MICROPYPATH = "~/.micropython/lib:/usr/lib/micropython" |
| 17 | + |
| 18 | +def save_file(fname, subf): |
| 19 | + outf = open(fname, "wb") |
| 20 | + while True: |
| 21 | + buf = subf.read(1024) |
| 22 | + if not buf: |
| 23 | + break |
| 24 | + outf.write(buf) |
| 25 | + outf.close() |
| 26 | + |
| 27 | +def install_tar(f, prefix): |
| 28 | + meta = {} |
| 29 | + for info in f: |
| 30 | + #print(info) |
| 31 | + fname = info.name |
| 32 | + try: |
| 33 | + fname = fname[fname.index("/") + 1:] |
| 34 | + except ValueError: |
| 35 | + fname = "" |
| 36 | + |
| 37 | + save = True |
| 38 | + for p in ("setup.", "PKG-INFO"): |
| 39 | + #print(fname, p) |
| 40 | + if fname.startswith(p) or ".egg-info" in fname: |
| 41 | + if fname.endswith("/requires.txt"): |
| 42 | + meta["deps"] = f.extractfile(info).read() |
| 43 | + save = False |
| 44 | + print("Skipping", fname) |
| 45 | + break |
| 46 | + |
| 47 | + if save: |
| 48 | + outfname = prefix + fname |
| 49 | + if info.type == tarfile.DIRTYPE: |
| 50 | + try: |
| 51 | + os.makedirs(outfname) |
| 52 | + print("Created " + outfname) |
| 53 | + except OSError as e: |
| 54 | + if e.args[0] != errno.EEXIST: |
| 55 | + raise |
| 56 | + else: |
| 57 | + print("Extracting " + outfname) |
| 58 | + subf = f.extractfile(info) |
| 59 | + save_file(outfname, subf) |
| 60 | + return meta |
| 61 | + |
| 62 | +def expandhome(s): |
| 63 | + h = os.getenv("HOME") |
| 64 | + s = s.replace("~/", h + "/") |
| 65 | + return s |
| 66 | + |
| 67 | +def download(url, local_name): |
| 68 | + os.system("wget -q %s -O %s" % (url, local_name)) |
| 69 | + |
| 70 | +def get_pkg_metadata(name): |
| 71 | + download("https://pypi.python.org/pypi/%s/json" % name, "pkg.json") |
| 72 | + with open("pkg.json") as f: |
| 73 | + s = f.read() |
| 74 | + return json.loads(s) |
| 75 | + |
| 76 | + |
| 77 | +def fatal(msg): |
| 78 | + print(msg) |
| 79 | + sys.exit(1) |
| 80 | + |
| 81 | +def gzdecompress(package_fname): |
| 82 | + f = open(package_fname, "rb") |
| 83 | + zipdata = f.read() |
| 84 | + data = gzip.decompress(zipdata) |
| 85 | + return data |
| 86 | + |
| 87 | +def gzdecompress_(package_fname): |
| 88 | + os.system("gzip -d -c %s > ungz" % package_fname) |
| 89 | + with open("ungz", "rb") as f: |
| 90 | + return f.read() |
| 91 | + |
| 92 | +def install_pkg(pkg_spec, install_path): |
| 93 | + data = get_pkg_metadata(pkg_spec) |
| 94 | + |
| 95 | + latest_ver = data["info"]["version"] |
| 96 | + print("Installing %s %s" % (pkg_spec, latest_ver)) |
| 97 | + packages = data["releases"][latest_ver] |
| 98 | + assert len(packages) == 1 |
| 99 | + package_url = packages[0]["url"] |
| 100 | + package_fname = os.path.basename(package_url) |
| 101 | + print(package_url) |
| 102 | + download(package_url, package_fname) |
| 103 | + |
| 104 | + data = gzdecompress(package_fname) |
| 105 | + |
| 106 | + f = open("pkg.tar", "wb") |
| 107 | + f.write(data) |
| 108 | + f.close() |
| 109 | + |
| 110 | + f = tarfile.TarFile("pkg.tar") |
| 111 | + return install_tar(f, install_path) |
| 112 | + |
| 113 | +def main(): |
| 114 | + install_path = None |
| 115 | + |
| 116 | + if sys.argv[1] != "install": |
| 117 | + fatal("Only 'install' command supported") |
| 118 | + |
| 119 | + i = 2 |
| 120 | + while sys.argv[i][0] == "-": |
| 121 | + opt = sys.argv[i][1] |
| 122 | + i += 1 |
| 123 | + if opt == "p": |
| 124 | + install_path = sys.argv[i] |
| 125 | + i += 1 |
| 126 | + else: |
| 127 | + fatal("Unknown/unsupported option: " + opt) |
| 128 | + |
| 129 | + if install_path is None: |
| 130 | + install_path = DEFAULT_MICROPYPATH |
| 131 | + |
| 132 | + install_path = install_path.split(":", 1)[0] |
| 133 | + |
| 134 | + install_path = expandhome(install_path) |
| 135 | + |
| 136 | + if install_path[-1] != "/": |
| 137 | + install_path += "/" |
| 138 | + |
| 139 | + print("Installing to: " + install_path) |
| 140 | + |
| 141 | + to_install = sys.argv[i:] |
| 142 | + # sets would be perfect here, but don't depend on them |
| 143 | + installed = [] |
| 144 | + while to_install: |
| 145 | + print("Queue:", to_install) |
| 146 | + pkg_spec = to_install.pop(0) |
| 147 | + if pkg_spec in installed: |
| 148 | + continue |
| 149 | + meta = install_pkg(pkg_spec, install_path) |
| 150 | + installed.append(pkg_spec) |
| 151 | + print(meta) |
| 152 | + deps = meta.get("deps", "").rstrip() |
| 153 | + if deps: |
| 154 | + deps = deps.decode("utf-8").split("\n") |
| 155 | + to_install.extend(deps) |
| 156 | + |
| 157 | + |
| 158 | +main() |
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