"""
Tools for handling files
"""
import os
import shutil
import errno
import zipfile
from string import Template
class CD:
"Context manager for changing the current working directory"
def __init__ (self, newPath):
self.newPath = os.path.expanduser(newPath)
self.savedPath = ""
def __enter__ (self):
self.savedPath = os.getcwd()
os.chdir(self.newPath)
def __exit__ (self, etype, value, traceback):
os.chdir(self.savedPath)
def unzip (spfZip, spDest, bCreatePath=False):
"unzip file <spfZip> at <spfDest>"
if spDest:
if bCreatePath and not os.path.exists(spDest):
os.makedirs(spDest, exist_ok=True)
print("> unzip in: "+ spDest)
spInstall = os.path.abspath(spDest)
if os.path.isdir(spInstall):
eraseFolder(spInstall)
with zipfile.ZipFile(spfZip) as hZip:
hZip.extractall(spDest)
else:
print("# folder not found")
else:
print("path destination is empty")
def eraseFolder (sp):
"erase content of a folder"
for sf in os.listdir(sp):
spf = os.path.join(sp, sf)
try:
if os.path.isfile(spf):
os.unlink(spf)
elif os.path.isdir(spf):
shutil.rmtree(spf)
except (OSError, shutil.Error) as e:
print(e)
def createCleanFolder (sp):
"make an empty folder or erase its content if not empty"
if not os.path.exists(sp):
os.makedirs(sp, exist_ok=True)
else:
eraseFolder(sp)
def copyFolderContent (spSrc, spDst):
"copy folder content from src to dst"
try:
shutil.copytree(spSrc, spDst)
except OSError as e:
if e.errno == errno.ENOTDIR:
shutil.copy(spSrc, spDst)
else:
raise
def fileFile (spf, dVars):
"return file <spf> as a text filed with variables from <dVars>"
return Template(open(spf, "r", encoding="utf-8").read()).safe_substitute(dVars)
def copyAndFileTemplate (spfSrc, spfDst, dVars):
"write file <spfSrc> as <spfDst> with variables filed with <dVars>"
s = Template(open(spfSrc, "r", encoding="utf-8").read()).safe_substitute(dVars)
open(spfDst, "w", encoding="utf-8", newline="\n").write(s)
def addFolderToZipAndFileFile (hZip, spSrc, spDst, dVars, bRecursive):
"add folder content to zip archive and file files with <dVars>"
# recursive function
spSrc = spSrc.strip("/ ")
spDst = spDst.strip("/ ")
for sf in os.listdir(spSrc):
spfSrc = (spSrc + "/" + sf).strip("/ ")
spfDst = (spDst + "/" + sf).strip("/ ")
if os.path.isdir(spfSrc):
if bRecursive:
addFolderToZipAndFileFile(hZip, spfSrc, spfDst, dVars, bRecursive)
else:
if spfSrc.endswith((".py", ".js", ".css", ".xcu", ".xul", ".rdf", ".dtd", ".properties")):
hZip.writestr(spfDst, fileFile(spfSrc, dVars))
else:
hZip.write(spfSrc, spfDst)