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import os
import platform
# import shlex
import shutil
import sys
import subprocess
MODULE_DIR = os.path.dirname(os.path.realpath(__file__))
REPO_DIR = os.path.dirname(MODULE_DIR)
if __name__ == "__main__":
# Allow importing pyenliven if running within
sys.path.insert(0, REPO_DIR)
def echo0(*args, **kwargs):
print(*args, file=sys.stderr, **kwargs)
DIFF_CMD_PARTS = None
if platform.system() == "Windows":
HOME = os.environ['USERPROFILE']
try_diff = shutil.which("diff")
# ^ Requires Python 3.3 or later (not 2.7)
if try_diff is not None:
DIFF_CMD_PARTS = ["diff"]
else:
DIFF_CMD_PARTS = ["fc"]
else:
HOME = os.environ['HOME']
DIFF_CMD_PARTS = ["diff"]
def diff_only_head(base, head, rel=None, more_1char_args=None, depth=0):
"""Compare two directories or files.
Files not in head will not be checked!
Therefore recursion here differs from a recursive call to GNU diff
(diff -ru).
The base and head are both at depth 0 and must be considered the
root of the relative path.
Args:
base (str): Path to original code (file or folder).
head (str): Path to new code (file or folder).
more_1char_args (Union[str,list[str]], optional): args. Defaults
to "-wb", or if using Windows, then "/W" if diff is not
present in PATH (in that case, fc is used).
rel (str, optional): Leave as None. This will be set
automatically for recursion.
depth (int, optional): Leave as 0. This will be set
automatically for recursion.
Raises:
FileNotFoundError: If base does not exist (and depth is 0).
FileNotFoundError: If head does not exist (and depth is 0).
FileNotFoundError: If diff is not in PATH.
ValueError: If one of the paths is a folder but the other is a
file.
Returns:
list(dict): A list of differing files as info dicts, each with:
- 'rel': The path relative to head.
- 'new': True if not in base, otherwise False or not present.
- 'code': Return code (1 if file in head&base differ)
"""
diffs = []
if not DIFF_CMD_PARTS:
ok_commands = 'diff'
if platform.system() == "Windows":
ok_commands = ['fc', 'diff']
raise FileNotFoundError("There is no {} in your PATH."
"".format(ok_commands))
args_1char = None
is_binary = False
if more_1char_args is None:
if platform.system() == "Windows":
if not is_binary:
args_1char = ["/W"] # ignore whitespace
else:
args_1char = ["/B"] # binary comparison
else:
if not is_binary:
args_1char = ["-wb"]
# -b: ignore changes in the amount of whitespace
# -w: ignore all white space (better for code since
# "a=1" is same as "a == 1", otherwise tokenizing
# the specific language would be necessary)
# -a: --text treat all files as text and
# --strip-trailing-cr strip trailing carriage
# return
# -E, --ignore-tab-expansion
else:
if more_1char_args.startswith("-"):
if DIFF_CMD_PARTS[0].lower() == "fc":
raise ValueError(
"diff wasn't in your PATH so fc is being used,"
" but it only accepts options"
" starting with '/'"
" (got \"{}\")".format(more_1char_args)
)
if isinstance(more_1char_args, (list, tuple)):
args_1char = more_1char_args
else:
# allow string too (split if has space, otherwise convert
# to 1-long list still)
args_1char = more_1char_args.strip().split()
whats = [None, None]
if rel:
base_path = os.path.join(base, rel)
head_path = os.path.join(head, rel)
else:
base_path = base
head_path = head
paths = (base_path, head_path)
names = ("base", "head")
for i, path in enumerate(paths):
if not os.path.exists(path):
if depth == 0:
raise FileNotFoundError(
"{}: {}".format(names[i], path)
)
else:
if os.path.isdir(path):
whats[i] = "folder"
else:
whats[i] = "file"
if whats[0] is None:
whats[0] = whats[1]
if whats[1] is None:
whats[1] = whats[0]
# ^ These are here since FileNotFoundError *only* is on depth==0.
if whats[0] != whats[1]:
raise ValueError(
'cannot compare {}:"{}" to {}:"{}"'
''.format(whats[0], base_path, whats[1], head_path)
)
if "folder" in whats:
# if "r" not in more_1char_args:
# more_1char_args += "r"
# ^ Not necessary since recursion needs to be done in this code
# (See docstring).
for sub in os.listdir(head_path):
sub_rel = os.path.join(rel, sub) if rel else sub
diffs += diff_only_head(
base,
head,
rel=sub_rel,
more_1char_args=more_1char_args,
depth=depth+1,
)
else:
# echo0('base={}:"{}"'.format(whats[0], paths[0]))
# echo0('head={}:"{}"'.format(whats[1], paths[1]))
# file, so actually compare
if not os.path.isfile(base_path):
# echo0("^ not in base")
if os.path.isdir(base_path):
raise NotImplementedError('should not be dir: "{}"'
''.format(base_path))
# ^ Should have been handled in "if" case above.
return [{
'code': 1,
'rel': rel,
'new': True,
}]
# echo0("^ in base")
cmd_parts = DIFF_CMD_PARTS.copy()
# echo0("args_1char={}".format(args_1char))
if args_1char:
cmd_parts += args_1char
cmd_parts += [base_path, head_path]
# echo0("\n\n{}".format(shlex.join(cmd_parts)))
child = subprocess.Popen(cmd_parts, stdout=subprocess.PIPE)
streamdata = child.communicate()[0]
data = streamdata
if sys.version_info.major >= 3:
data = streamdata.decode(sys.stdout.encoding)
print(data)
rc = child.returncode
if rc == 0:
# echo0("^ files are the same")
return [] # Do not add any diff entry.
else:
pass
# echo0("^ files differ")
return [{
'code': rc,
'rel': rel,
}]
return diffs # folder, so return every sub's diff(s) ([] if None)
def get_shallowest_files_sub(root, log_level=0, filter=None):
"""Get the shallowest folder relative to root that contains file(s).
Args:
root (str): The folder to check for files recursively.
rel (str, optional): Leave blank (set automatically during
recursion).
depth (int, optional): Leave as 0 (set automatically during
recursion).
filter (Union[str,list[str]], optional): Filename or list of
filenames to find (None/0/""/False/"*"/[] will match any
file).
Returns:
Union(str, None): Get the relative dir that contains file(s).
"""
return _get_shallowest_files_sub(
root,
log_level=log_level,
filter=filter,
)
def _get_shallowest_files_sub(root, rel=None, depth=0, log_level=0,
filter=None):
if isinstance(filter, str):
if filter == "*":
filter = None
filter = [filter]
if root is None:
raise ValueError("root is {}".format(root))
if rel and rel.startswith(os.path.sep):
raise ValueError(
"rel cannot start with '{}'"
" because that would override root (depth={})"
"".format(os.path.sep, depth)
)
parent = os.path.join(root, rel) if rel else root
for sub in os.listdir(parent):
sub_path = os.path.join(parent, sub)
if os.path.isfile(sub_path):
if (not filter) or (sub in filter):
return rel
# ^ Check *all* subs first, in case dir is listed before file.
# The *parent* has file(s), so return parent
# (must check if file *before* recursion
# or deeper folder with file may be found):
for sub in os.listdir(parent):
sub_path = os.path.join(parent, sub)
if os.path.isfile(sub_path):
continue
sub_rel = os.path.join(rel, sub) if rel else sub
if log_level > 0:
pass
# echo0("\ndepth={}".format(depth))
# echo0("root:{}".format(root))
# echo0("+rel:{}".format(rel))
# echo0("=parent:{}".format(parent))
# echo0("sub={}".format(sub))
# echo0("sub_rel={}".format(sub_rel))
found_path = _get_shallowest_files_sub(
root,
rel=sub_rel,
depth=depth+1,
log_level=log_level,
filter=filter,
)
if found_path:
return found_path
continue
return None
def find_mod(parent, name):
return _find_sub_with_known_files(
parent,
name,
filter=["init.lua", "mod.conf", "depends.txt", "description.txt"],
)
def find_modpack(parent, name):
return _find_sub_with_known_files(
parent,
name,
filter=["modpack.txt", "modpack.conf"],
)
def _find_sub_with_known_files(parent, name, root_slash=None, filter=None):
"""Get relative path to Minetest mod (or "" if parent is it).
Args:
parent (str): Folder to search for Minetest mod files.
name (str): Name of the mod to find. It can still be found if it
is the same name as the parent, so if parent is "mods",
then "3d_armor/3d_armor" would be the result rather than
"3d_armor".
root_slash (str, optional): Leave as None. Recursion sets it
automatically. Defaults to None.
filter (list[str]): Defaults to files found in a mod,
but can be changed to find a modpack or anything else.
Returns:
str: relative path to Minetest mod (or "" if parent is it),
or None if not Found.
"""
if not root_slash:
root_slash = parent + os.path.sep
_, parent_name = os.path.split(parent)
if parent_name == name:
for sub in os.listdir(parent):
sub_path = os.path.join(parent, sub)
if not os.path.isfile(sub_path):
continue
if sub in filter:
# Then parent is the mod. End the search
# and return *relative* path to mod
# (with root_slash removed, so
# "" if parent matches before recursion)
return parent[len(root_slash):]
# ^ must iterate files *before* recursion to avoid deeper false
# positive suchas backup folder inside of a mod that has a
# file in filter.
for sub in os.listdir(parent):
sub_path = os.path.join(parent, sub)
if os.path.isfile(sub_path):
continue
found = _find_sub_with_known_files(
sub_path,
name,
root_slash=root_slash,
filter=filter,
)
if found:
return found
return None
def main():
bases = (
"/opt/minebest/assemble/bucket_game",
"/opt/minebest/mtkit/minetest/src"
)
heads = (
os.path.join(REPO_DIR, "Bucket_Game-branches"),
os.path.join(HOME, "metaprojects", "pull-requests", "OldCoder")
)
for base in bases:
if not os.path.isdir(base):
echo0('Warning: There is no base "{}".'.format(base))
continue
for head in heads:
for head_sub in os.listdir(head):
head_sub_path = os.path.join(head, head_sub)
if os.path.isfile(head_sub_path):
# echo0('Warning: Only folders, skipped "{}"'
# ''.format(head_sub))
continue
if "original" in head_sub:
echo0('INFO: skipped original: "{}"'
''.format(head_sub))
continue
mod_rel = get_shallowest_files_sub(
head_sub_path,
filter=["init.lua", "mod.conf", "depends.txt",
"description.txt"],
)
modpack_rel = get_shallowest_files_sub(
head_sub_path,
filter=["modpack.txt"],
)
if mod_rel and not modpack_rel:
mod_parent = os.path.dirname(os.path.join(head_sub_path,
mod_rel))
mod_parent_rel = mod_parent[len(head_sub_path)+1:]
# ^ +1 no os.path.sep
_, mod_parent_name = os.path.split(mod_parent)
if mod_parent_rel and (mod_parent_name not in ["mods"]):
echo0('Warning: No modpack.txt,'
' so assuming modpack={} ("{}")'
''.format(mod_parent_name, mod_parent))
if mod_rel:
echo0('mod="{}"'.format(mod_rel))
else:
echo0('Warning: mod not identified in "{}"'
''.format(head_sub))
return 0
if __name__ == "__main__":
sys.exit(main())