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"""
Tools for handling files
"""
import os
import shutil
import errno
import zipfile
from string import Template
def convertDictToString (dDict, nDepth=1, nIndent=2):
"returns <dDict> as a indented string"
sResult = "{\n"
sIndent = " " * nIndent
for key, val in dDict.items():
sKey = f"'{key}'" if type(key) is str else str(key)
if nDepth > 0 and type(val) is dict:
sVal = convertDictToString(val, nDepth-1, nIndent+nIndent)
else:
sVal = f"'{val}'" if type(val) is str else str(val)
sResult += f'{sIndent}{sKey}: {sVal},\n'
sResult = sResult + sIndent[:-2] + "}"
return sResult
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):
eraseFolderContent(spInstall)
with zipfile.ZipFile(spfZip) as hZip:
hZip.extractall(spDest)
else:
print("# folder <" + spDest + "> not found")
else:
print("path destination is empty")
def eraseFolderContent (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:
eraseFolderContent(sp)
def copyFolder (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:
print("Error while copying folder <"+spSrc+"> to <"+spDst+">.")
def moveFolderContent (spSrc, spDst, sPrefix="", bLog=False):
"move folder content from <spSrc> to <spDst>: if files already exist in <spDst>, they are replaced. (not recursive)"
try:
if not os.path.isdir(spSrc):
print("Folder <"+spSrc+"> not found. Can’t move files.")
return
if not os.path.isdir(spDst):
print("Folder <"+spDst+"> not found. Can’t move files.")
return
for sf in os.listdir(spSrc):
spfSrc = os.path.join(spSrc, sf)
if os.path.isfile(spfSrc):
spfDst = os.path.join(spDst, sPrefix + sf)
shutil.move(spfSrc, spfDst)
if bLog:
print("file <" + spfSrc + "> moved to <"+spfDst+">")
except Error as e:
print("Error while moving folder <"+spSrc+"> to <"+spDst+">.")
print(e)
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>"
sText = Template(open(spfSrc, "r", encoding="utf-8").read()).safe_substitute(dVars)
open(spfDst, "w", encoding="utf-8", newline="\n").write(sText)
def addFileToZipAndFileFile (hZip, spfSrc, spfDst, dVars):
"add a file to zip archive and file it with <dVars>"
if spfSrc.endswith((".txt", ".md", ".py", ".js", ".json", ".html", ".htm", ".css", ".xcu", ".xul", ".rdf", ".dtd", ".properties")):
hZip.writestr(spfDst, fileFile(spfSrc, dVars))
else:
hZip.write(spfSrc, spfDst)
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:
addFileToZipAndFileFile(hZip, spfSrc, spfDst, dVars)
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