def uninstall(self,recipe):
"""Uninstall the named recipe from this myppy env."""
# TODO: remove things depending on it
with self:
q = "DELETE FROM installed_recipes WHERE recipe=?"
self._db.execute(q,(recipe,))
q = "SELECT filepath FROM installed_files WHERE recipe=?"\
" ORDER BY filepath DESC"
files = [r[0] for r in self._db.execute(q,(recipe,))]
q = "DELETE FROM installed_files WHERE recipe=?"
self._db.execute(q,(recipe,))
for file in files:
assert util.relpath(file) == file
if self._old_files_cache is not None:
self._old_files_cache.remove(file)
for file in files:
filepath = os.path.join(self.rootdir,file)
if not os.path.exists(filepath):
continue
if filepath.endswith(os.sep):
print "PRUNING", filepath
util.prune_dir(filepath)
else:
print "REMOVING", filepath
os.unlink(filepath)
dirpath = os.path.dirname(filepath) + os.sep
if not os.listdir(dirpath):
q = "SELECT * FROM installed_files WHERE filepath=?"
if not self._is_oldfile(dirpath):
print "PRUNING", filepath
util.prune_dir(dirpath)
def record_files(self,recipe,files):
"""Record the given list of files as installed for the given recipe."""
files = list(files)
assert files, "recipe '%s' didn't install any files" % (recipe,)
for file in files:
file = file[len(self.rootdir)+1:]
assert util.relpath(file) == file
self._db.execute("INSERT INTO installed_files VALUES (?,?)",
(recipe,file,))
if self._old_files_cache is not None:
self._old_files_cache.add(file)
def _is_oldfile(self,file):
if self._old_files_cache is None:
self._old_files_cache = set()
for r in self._db.execute("SELECT filepath FROM installed_files"):
self._old_files_cache.add(r[0])
file = file[len(self.rootdir)+1:]
assert util.relpath(file) == file
if file in self._old_files_cache:
return True
q = "SELECT * FROM installed_files WHERE filepath=?"
if self._db.execute(q,(file,)).fetchone():
return True
return False
