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import os
""" Helper functions used in tatt"""
## Getting unique elements of a list ##
def unique(seq, idfun=None):
"""Returns the unique elements in a list
order preserving"""
if idfun is None:
def idfun(x): return x
seen = {}
result = []
for item in seq:
marker = idfun(item)
# in old Python versions:
# if seen.has_key(marker)
# but in new ones:
if marker in seen: continue
seen[marker] = 1
result.append(item)
return result
def get_repo_dir(repodir):
# Prefer the repo dir in the config
if repodir:
if os.path.isdir(repodir):
return repodir
else:
raise ValueError("Repo dir does not seem to be a directory")
# No path given in config
if os.path.isdir("/var/db/repos/gentoo/"):
print("Using /var/db/repos/gentoo/ as fallback")
return "/var/db/repos/gentoo"
elif os.path.isdir("/usr/portage/"):
print("Using /usr/portage/ as fallback")
return "/usr/portage/"
raise ValueError("Repo dir not given and fallbacks failed")
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