public
Created

  • Download Gist
PackageSetup.py
Python
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
#!python
 
from __future__ import with_statement
import glob
import os.path
import shutil
import zipfile
 
 
def isFileEntry(s):
return s[-1] != '/'
 
def readFile(fname):
with open(fname, 'rb') as f:
return f.read()
 
def writeFile(fname, data):
with open(fname, 'wb') as fo:
fo.write(data)
 
def mkdirs(path):
try:
os.makedirs(path)
except os.error:
pass
 
def upgradeArchive(src, dst, pkgdir, backupdir, inhibitOverwrite):
mkdirs(pkgdir)
mkdirs(os.path.dirname(dst))
 
newar = zipfile.ZipFile(src)
newfiles = set(filter(isFileEntry, newar.namelist()))
 
oldar = None
oldfiles = set()
try:
oldar = zipfile.ZipFile(dst)
oldfiles = set(filter(isFileEntry, oldar.namelist()))
except (zipfile.error, IOError):
pass
 
# delete any orphaned files
if not inhibitOverwrite:
orphanedFiles = oldfiles - newfiles
for f in orphanedFiles:
# backup the file, if the user has modified it
try:
orig = oldar.read(f)
user = readFile(os.path.join(pkgdir, f))
if user != orig:
backupFile = os.path.join(backupdir, f)
mkdirs(os.path.dirname(backupFile))
writeFile(backupFile, user)
except (os.error, IOError):
pass
 
try:
os.remove(os.path.join(pkgdir, f))
except (os.error, IOError):
pass
 
# extract any new files
for f in newfiles - oldfiles:
fname = os.path.join(pkgdir, f)
mkdirs(os.path.dirname(fname))
 
try:
user = readFile(fname)
if user:
if inhibitOverwrite:
continue;
else:
# Backup the old file
backupFile = os.path.join(backupdir, f)
mkdirs(os.path.dirname(backupFile))
writeFile(backupFile, user)
except (os.error, IOError):
pass
 
writeFile(fname, newar.read(f))
 
# upgrade each file
if not inhibitOverwrite:
for f in oldfiles & newfiles:
fname = os.path.join(pkgdir, f)
orig = oldar.read(f)
new = newar.read(f)
 
if new != orig:
# backup the file, if the user has modified it
try:
user = readFile(fname)
if user != orig:
backupFile = os.path.join(backupdir, f)
mkdirs(os.path.dirname(backupFile))
writeFile(backupFile, user)
except (os.error, IOError):
pass
 
writeFile(fname, newar.read(f))
 
# copy the zip
shutil.copy(src, dst)
 
def removeArchive(dst, pkgdir):
oldar = None
oldfiles = set()
try:
oldar = zipfile.ZipFile(dst)
oldfiles = set(filter(isFileEntry, oldar.namelist()))
except (zipfile.error, IOError):
pass
oldar.close()
 
# delete any orphaned files
orphanedFiles = oldfiles
for f in orphanedFiles:
try:
os.remove(os.path.join(pkgdir, f))
except (os.error, IOError):
pass
 
# delete the archive and destination
try:
os.remove(dst)
except (os.error, IOError):
pass
 
try:
os.rmdir(pkgdir)
except (os.error, IOError):
pass
 
def srcNewer(src, dst):
try:
return (os.path.getmtime(src) > os.path.getmtime(dst)
or os.path.getsize(src) != os.path.getsize(dst))
except (os.error, IOError):
return True
 
def upgradePackage(pkg, pristinedir, datadir, backupdir):
pristinePkg = os.path.join(pristinedir, os.path.basename(pkg))
# if the zip is different from the one in pristinedir
if srcNewer(pkg, pristinePkg):
(base, ext) = os.path.splitext(os.path.basename(pkg))
inhibitOverwrite = (base == "User")
upgradeArchive(pkg, pristinePkg, os.path.join(datadir, base),
os.path.join(backupdir, base), inhibitOverwrite)
 
def upgrade(appdir, userdir, pristinedir, datadir, backupdir):
packages = (glob.glob(appdir + "/*.sublime-package") +
glob.glob(userdir + "/*.sublime-package"))
 
for pkg in packages:
upgradePackage(pkg, pristinedir, datadir, backupdir)
 
# Delete any packages that are no longer around
depzips = (set([os.path.basename(x) for x in glob.glob(pristinedir + "/*.sublime-package")])
- set([os.path.basename(x) for x in packages]))
for dz in depzips:
pz = os.path.join(pristinedir, dz)
(base, ext) = os.path.splitext(dz)
removeArchive(pz, os.path.join(datadir, base))

Please sign in to comment on this gist.

Something went wrong with that request. Please try again.