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# -*- coding: utf-8 -*-
#
# File: portato/backend/flags.py
# This file is part of the Portato-Project, a graphical portage-frontend.
#
# Copyright (C) 2006 René 'Necoro' Neumann
# This is free software. You may redistribute copies of it under the terms of
# the GNU General Public License version 2.
# There is NO WARRANTY, to the extent permitted by law.
#
# Written by René 'Necoro' Neumann <necoro@necoro.net>
import os
import os.path
from subprocess import Popen, PIPE # needed for grep
from portato.helper import *
from portage_helper import split_package_name
import package
import portage
from portage_util import unique_array
CONFIG = {
"usefile" : "portato",
"maskfile" : "portato",
"testingfile" : "portato",
"usePerVersion" : True,
"maskPerVersion" : True,
"testingPerVersion" : True
}
### GENERAL PART ###
def grep (pkg, path):
"""Grep runs "egrep" on a given path and looks for occurences of a given package.
@param pkg: the package
@type pkg: string (cpv) or L{backend.Package}-object
@param path: path to look in
@type path: string
@returns: occurences of pkg in the format: "file:line-no:complete_line_found"
@rtype: string"""
if not isinstance(pkg, package.Package):
pkg = package.Package(pkg) # assume it is a cpv or a gentoolkit.Package
command = "egrep -x -n -r -H '^[<>!=~]{0,2}%s(-[0-9].*)?[[:space:]]?.*$' %s" # %s is replaced in the next line ;)
return Popen((command % (pkg.get_cp(), path)), shell = True, stdout = PIPE).communicate()[0].splitlines()
def get_data(pkg, path):
"""This splits up the data of L{grep} and builds tuples in the format (file,line,criterion,list_of_flags).
@param pkg: package to find
@type pkg: string (cpv) or L{backend.Package}-object
@param path: path to look in
@type path: string
@returns: a list of tuples in the form (file,line,criterion,list_of_flags)
@rtype: (string,string,string,string[])[]"""
flags = []
# do grep
list = grep(pkg, path)
for i in range(len(list)):
file, line, fl = tuple(list[i].split(":")) # get file, line and flag-list
fl = fl.split()
crit = fl[0]
fl = fl[1:]
# stop after first comment
for j in range(len(fl)):
if fl[j][0] == "#": # comment - stop here
fl = fl[:j]
break
flags.append((file,line,crit,fl))
return flags
def set_config (cfg):
"""This function sets the CONFIG-variable for the whole module. Use this instead of modifying L{CONFIG} directly.
@param cfg: a dictionary with at least all the keys of the CONFIG-var
@type cfg: dict
@raises KeyError: if a keyword is missing in the new cfg"""
for i in CONFIG.keys():
if not i in cfg:
raise KeyError, "Missing keyword in config: "+i
for i in CONFIG:
CONFIG[i] = cfg[i]
def generate_path (cpv, exp):
"""Generates the correct path out of given wildcards.
These wildcards can be:
- $(cat) : category
- $(cat-1): first part of the category (e.g. "app")
- $(cat-2): second part of the category
- $(pkg) : name of the package
@param cpv: the cpv of the current package
@type cpv: string (cat/pkg-ver)
@param exp: the expression to render the path from
@type exp: string
@returns: rendered path
@rtype string"""
cat, pkg, ver, rev = split_package_name(cpv)
if exp.find("$(") != -1:
exp = exp.replace("$(cat)",cat).\
replace("$(pkg)",pkg).\
replace("$(cat-1)",cat.split("-")[0]).\
replace("$(cat-2)",cat.split("-")[1])
return exp
### USE FLAG PART ###
USE_PATH = os.path.join(portage.USER_CONFIG_PATH,"package.use")
USE_PATH_IS_DIR = os.path.isdir(USE_PATH)
useFlags = {} # useFlags in the file
newUseFlags = {} # useFlags as we want them to be: format: cpv -> [(file, line, useflag, (true if removed from list / false if added))]
def invert_use_flag (flag):
"""Invertes a flag.
>>> invert_use_flag("foo")
-foo
>>> invert_use_flag("-bar")
bar
@param flag: the flag
@type flag: string
@returns: inverted flag
@rtype: string
"""
if flag[0] == "-":
return flag[1:]
else:
return "-"+flag
def set_use_flag (pkg, flag):
"""Sets the useflag for a given package.
@param pkg: the package
@type pkg: string (cpv) or L{backend.Package}-object
@param flag: the flag to set
@type flag: string"""
global useFlags, newUseFlags
if not isinstance(pkg, package.Package):
pkg = package.Package(pkg) # assume cpv or gentoolkit.Package
cpv = pkg.get_cpv()
invFlag = invert_use_flag(flag)
# if not saved in useFlags, get it by calling get_data() which calls grep()
data = None
if not cpv in useFlags:
data = get_data(pkg, USE_PATH)
useFlags[cpv] = data
else:
data = useFlags[cpv]
if not cpv in newUseFlags:
newUseFlags[cpv] = []
debug("data: "+str(data))
# add a useflag / delete one
added = False
for file, line, crit, flags in data:
if pkg.matches(crit):
# we have the inverted flag in the uselist/newuselist --> delete it
if invFlag in flags or (file, line, invFlag, False) in newUseFlags[cpv] or (file, line, flag, True) in newUseFlags[cpv]:
if added: del newUseFlags[-1] # we currently added it as an extra option - delete it
added = True
jumpOut = False
for t in [(file, line, invFlag, False),(file, line, flag, True)]:
if t in newUseFlags[cpv]:
newUseFlags[cpv].remove(t)
jumpOut = True
break
if not jumpOut: newUseFlags[cpv].append((file, line, invFlag, True))
break
# we want to duplicate the flag --> ignore
elif flag in flags:
added = True # emulate adding
break
# add as an extra flag
else:
if not added: newUseFlags[cpv].append((file, line, flag, False))
added = True
# create a new line
if not added:
path = USE_PATH
if USE_PATH_IS_DIR:
path = os.path.join(USE_PATH, generate_path(cpv, CONFIG["usefile"]))
try:
newUseFlags[cpv].remove((path, -1, invFlag, False))
except ValueError: # not in UseFlags
newUseFlags[cpv].append((path, -1, flag, False))
newUseFlags[cpv] = unique_array(newUseFlags[cpv])
debug("newUseFlags: "+str(newUseFlags))
def remove_new_use_flags (cpv):
"""Removes all new use-flags for a specific package.
@param cpv: the package for which to remove the flags
@type cpv: string (cpv) or L{backend.Package}-object"""
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
try:
del newUseFlags[cpv]
except KeyError:
pass
def get_new_use_flags (cpv):
"""Gets all the new use-flags for a specific package.
@param cpv: the package from which to get the flags
@type cpv: string (cpv) or L{backend.Package}-object
@returns: list of flags
@rtype: string[]"""
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
list2return = []
try:
for file, line, flag, remove in newUseFlags[cpv]:
if remove:
list2return.append(invert_use_flag(flag))
else:
list2return.append(flag)
except KeyError:
pass
return list2return
def write_use_flags ():
"""This writes our changed useflags into the file."""
global newUseFlags, useFlags
def insert (flag, list):
"""Shortcut for inserting a new flag right after the package-name."""
list.insert(1,flag)
def remove (flag, list):
"""Removes a flag."""
try:
list.remove(flag)
except ValueError: # flag is given as flag\n
list.remove(flag+"\n")
list.append("\n") #re-insert the newline
# no more flags there - comment it out
if len(list) == 1 or list[1][0] in ("#","\n"):
list[0] = "#"+list[0]
insert("#removed by portato#",list)
file_cache = {} # cache for having to read the file only once: name->[lines]
for cpv in newUseFlags:
flagsToAdd = [] # this is used for collecting the flags to be inserted in a _new_ line
for file, line, flag, delete in newUseFlags[cpv]:
line = int(line) # it is saved as a string so far!
# add new line
if line == -1:
flagsToAdd.append(flag)
# change a line
else:
if not file in file_cache:
# read file
f = open(file, "r")
lines = []
i = 1
while i < line: # stop at the given line
lines.append(f.readline())
i += 1
l = f.readline().split(" ")
# delete or insert
if delete:
remove(flag,l)
else:
insert(flag,l)
lines.append(" ".join(l))
# read the rest
lines.extend(f.readlines())
file_cache[file] = lines
f.close()
else: # in cache
l = file_cache[file][line-1].split(" ")
if delete:
remove(flag,l)
else:
insert(flag,l)
file_cache[file][line-1] = " ".join(l)
if flagsToAdd:
# write new lines
msg = "\n#portato update#\n"
if CONFIG["usePerVersion"]: # add on a per-version-base
msg += "=%s %s\n" % (cpv, ' '.join(flagsToAdd))
else: # add on a per-package-base
list = split_package_name(cpv)
msg += "%s/%s %s\n" % (list[0], list[1], ' '.join(flagsToAdd))
if not file in file_cache:
f = open(file, "a")
f.write(msg)
f.close()
else:
file_cache[file].append(msg)
# write to disk
for file in file_cache.keys():
f = open(file, "w")
f.writelines(file_cache[file])
f.close()
# reset
useFlags = {}
newUseFlags = {}
### MASKING PART ###
MASK_PATH = os.path.join(portage.USER_CONFIG_PATH,"package.mask")
UNMASK_PATH = os.path.join(portage.USER_CONFIG_PATH,"package.unmask")
MASK_PATH_IS_DIR = os.path.isdir(MASK_PATH)
UNMASK_PATH_IS_DIR = os.path.isdir(UNMASK_PATH)
new_masked = {}
new_unmasked = {}
def set_masked (pkg, masked = True):
"""Sets the masking status of the package.
@param pkg: the package from which to get the flags
@type pkg: string (cpv) or L{backend.Package}-object
@param masked: if True: mask it; if False: unmask it
@type masked: boolean"""
global new_masked, newunmasked
if not isinstance(pkg, package.Package):
pkg = package.Package(pkg)
cpv = pkg.get_cpv()
if not cpv in new_unmasked:
new_unmasked[cpv] = []
if not cpv in new_masked:
new_masked[cpv] = []
if masked:
link_neq = new_masked
link_eq = new_unmasked
path = UNMASK_PATH
else:
link_neq = new_unmasked
link_eq = new_masked
path = MASK_PATH
copy = link_eq[cpv]
for file, line in copy:
if line == "-1":
link_eq[cpv].remove((file, line))
copy = link_neq[cpv][:]
for file, line in copy:
if line != "-1":
link_neq[cpv].remove(file, line)
if masked == pkg.is_masked():
return
data = get_data(pkg, path)
debug("data: "+str(link_eq))
done = False
for file, line, crit, flags in data:
if pkg.matches(crit):
link_eq[cpv].append((file, line))
done = True
if done: return
if masked:
is_dir = MASK_PATH_IS_DIR
path = MASK_PATH
else:
is_dir = UNMASK_PATH_IS_DIR
path = UNMASK_PATH
if is_dir:
file = os.path.join(path, generate_path(cpv, CONFIG["usefile"]))
else:
file = path
link_neq[cpv].append((file, "-1"))
link_neq[cpv] = unique_array(link_neq[cpv])
debug("new_(un)masked: "+str(link_neq))
def remove_new_masked (cpv):
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
try:
del new_masked[cpv]
except KeyError:
pass
try:
del new_unmasked[cpv]
except KeyError:
pass
def new_masking_status (cpv):
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
if cpv in new_masked and new_masked[cpv]:
return "masked"
elif cpv in new_unmasked and new_unmasked[cpv]:
return "unmasked"
else: return None
def write_masked ():
global new_unmasked, new_masked
file_cache = {}
def write(cpv, file, line):
line = int(line)
# add new line
if line == -1:
msg = "\n#portato update#\n"
if CONFIG["maskPerVersion"]:
msg += "=%s\n" % cpv
else:
list = split_package_name(cpv)
msg += "%s/%s\n" % (list[0],list[1])
if not file in file_cache:
f = open(file, "a")
f.write(msg)
f.close()
else:
file_cache[file].append(msg)
# change a line
else:
if not file in file_cache:
# read file
f = open(file, "r")
lines = []
i = 1
while i < line: # stop at the given line
lines.append(f.readline())
i = i+1
# delete
l = f.readline()
l = "#"+l[:-1]+" # removed by portato\n"
lines.append(l)
# read the rest
lines.extend(f.readlines())
file_cache[file] = lines
f.close()
else: # in cache
l = file_cache[file][line-1]
# delete:
l = "#"+l[:-1]+" # removed by portato\n"
file_cache[file][line-1] = l
for cpv in new_masked:
for file, line in new_masked[cpv]:
write(cpv, file, line)
for cpv in new_unmasked:
for file, line in new_unmasked[cpv]:
write(cpv, file, line)
# write to disk
for file in file_cache.keys():
f = open(file, "w")
f.writelines(file_cache[file])
f.close()
# reset
new_masked = {}
new_unmasked = {}
### TESTING PART ###
TESTING_PATH = os.path.join(portage.USER_CONFIG_PATH, "package.keywords")
TESTING_PATH_IS_DIR = os.path.isdir(TESTING_PATH)
newTesting = {}
arch = ""
def remove_new_testing (cpv):
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
try:
del newTesting[cpv]
except KeyError:
pass
def new_testing_status (cpv):
if isinstance(cpv, package.Package):
cpv = cpv.get_cpv()
if cpv in newTesting:
for file, line in newTesting[cpv]:
if line == "-1": return False
else: return True
return None
def set_testing (pkg, enable):
"""Enables the package for installing when it is marked as testing (~ARCH).
@param pkg: the package
@type pkg: string (cpv) or L{backend.Package}-object
@param enable: controls whether to enable (True) or disable (False) for test-installing
@type enable: boolean"""
global arch, newTesting
if not isinstance(pkg, package.Package):
pkg = package.Package(pkg)
arch = pkg.get_settings("ARCH")
cpv = pkg.get_cpv()
if not cpv in newTesting:
newTesting[cpv] = []
for file, line in newTesting[cpv]:
if (enable and line != "-1") or (not enable and line == "-1"):
newTesting[cpv].remove((file, line))
if (enable and not pkg.is_testing(allowed=True)) or (not enable and pkg.is_testing(allowed=True)):
return
if not enable:
test = get_data(pkg, TESTING_PATH)
debug("data (test): "+str(test))
for file, line, crit, flags in test:
if pkg.matches(crit) and flags[0] == "~"+arch:
newTesting[cpv].append((file, line))
else:
if TESTING_PATH_IS_DIR:
file = os.path.join(TESTING_PATH, CONFIG["testingfile"])
else:
file = TESTING_PATH
newTesting[cpv].append((file, "-1"))
newTesting[cpv] = unique_array(newTesting[cpv])
debug("newTesting: "+str(newTesting))
def write_testing ():
global arch, newTesting
file_cache = {}
for cpv in newTesting:
for file, line in newTesting[cpv]:
line = int(line)
# add new line
if line == -1:
msg = "\n#portato update#\n"
if CONFIG["testingPerVersion"]:
msg += "=%s ~%s\n" % (cpv, arch)
else:
list = split_package_name(cpv)
msg += "%s/%s ~%s\n" % (list[0],list[1],arch)
if not file in file_cache:
f = open(file, "a")
f.write(msg)
f.close()
else:
file_cache[file].append(msg)
# change a line
else:
if not file in file_cache:
# read file
f = open(file, "r")
lines = []
i = 1
while i < line: # stop at the given line
lines.append(f.readline())
i = i+1
# delete
l = f.readline()
l = "#"+l[:-1]+" # removed by portato\n"
lines.append(l)
# read the rest
lines.extend(f.readlines())
file_cache[file] = lines
f.close()
else: # in cache
l = file_cache[file][line-1]
# delete:
l = "#"+l[:-1]+" # removed by portato\n"
file_cache[file][line-1] = l
# write to disk
for file in file_cache.keys():
f = open(file, "w")
f.writelines(file_cache[file])
f.close()
# reset
newTesting = {}
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