531 lines
14 KiB
Python
531 lines
14 KiB
Python
# -*- coding: utf-8 -*-
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"""
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@author: Fabio Erculiani <lxnay@sabayon.org>
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@contact: lxnay@sabayon.org
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@copyright: Fabio Erculiani
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@license: GPL-2
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B{Entropy Package Manager Client}.
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"""
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import os
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import errno
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import sys
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import shutil
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import tempfile
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import subprocess
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if sys.hexversion >= 0x3000000:
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from subprocess import getoutput
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else:
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from commands import getoutput
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from entropy.const import etpConst
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from entropy.output import red, darkred, brown, green, darkgreen, blue, \
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purple, teal, darkblue, print_info, print_error, print_warning, \
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readtext
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from entropy.i18n import _
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import entropy.tools
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def configurator(options):
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rc = 0
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if not options:
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return -10
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# check if I am root
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if not entropy.tools.is_root():
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mytxt = _("You are not root")
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print_error(red(mytxt+"."))
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return 1
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from entropy.client.interfaces import Client
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etp_client = None
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acquired = False
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try:
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etp_client = Client()
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acquired = entropy.tools.acquire_entropy_locks(etp_client)
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if not acquired:
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print_error(darkgreen(_("Another Entropy is currently running.")))
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return 1
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cmd = options.pop(0)
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if cmd == "update":
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rc = update(etp_client)
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else:
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rc = -10
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finally:
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if acquired and (etp_client is not None):
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entropy.tools.release_entropy_locks(etp_client)
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if etp_client is not None:
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etp_client.shutdown()
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return rc
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def update(entropy_client, cmd = None):
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docmd = False
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if cmd != None:
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docmd = True
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updates = entropy_client.ConfigurationUpdates()
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paths_map = {}
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first_pass = True
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while True:
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print_info(brown(" @@ ") + \
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darkgreen("%s ..." % (_("Scanning filesystem"),)))
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scandata = updates.get()
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if not scandata:
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print_info(darkred(_("All fine baby. Nothing to do!")))
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break
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root = scandata.root()
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if first_pass:
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paths_map.update(dict(enumerate(sorted(scandata.keys()), 1)))
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first_pass = False
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for idx in sorted(paths_map.keys()):
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x = paths_map[idx]
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try:
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obj = scandata[x]
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except KeyError:
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# duplicated entry?
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del paths_map[idx]
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continue
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file_path = root + obj['destination']
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print_info(
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"(" + blue(str(idx)) + ") " + \
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red(" %s: " % (_("file"),) ) + \
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x)
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if not paths_map:
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print_info(darkred(_("All fine baby. Nothing to do!")))
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break
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if not docmd:
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cmd = selfile()
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else:
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docmd = False
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try:
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cmd = int(cmd)
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except:
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print_error(_("Type a number"))
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continue
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# actions
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if cmd == -1:
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# exit
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return -1
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elif cmd in (-3, -5):
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# automerge files asking one by one
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_automerge(cmd, entropy_client, root, paths_map, scandata)
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break
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elif cmd in (-7, -9):
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_autodiscard(cmd, entropy_client, root, paths_map, scandata)
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break
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elif cmd > 0:
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if _handle_command(
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cmd, entropy_client, root, paths_map, scandata):
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continue
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break
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def _handle_command(idx, entropy_client, root, paths_map, scandata):
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"""
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Execute > 0 commands.
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"""
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try:
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source = paths_map[idx]
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except KeyError:
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return True
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source_path = root + source
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if not scandata.exists(source):
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print_info(
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"%s: %s" % (
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darkred(_("Discarding")),
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teal(source_path),)
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)
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scandata.remove(source)
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del paths_map[idx]
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return True
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dest = scandata[source]['destination']
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dest_path = root + dest
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if not scandata.exists(dest):
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print_info(
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"%s: %s" % (
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darkred(_("Automerging")),
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teal(source_path),)
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)
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scandata.merge(source)
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del paths_map[idx]
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return True
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diff = showdiff(dest_path, source_path)
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if not diff:
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print_info(
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"%s: %s" % (
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darkred(_("Automerging")),
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teal(source_path),)
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)
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scandata.merge(source)
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del paths_map[idx]
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return True
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mytxt = "%s: %s" % (
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darkred(_("Selected file")),
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darkgreen(source_path),
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)
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print_info(mytxt)
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comeback = False
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while True:
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action = selaction()
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try:
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action = int(action)
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except:
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print_error(_("Type a number"))
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continue
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# actions handling
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if action == -1:
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comeback = True
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break
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elif action == 1:
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print_info(
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_("Replacing %s with %s") % (
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darkgreen(dest_path),
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darkred(source_path),))
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merged = scandata.merge(source)
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if not merged:
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print_warning(
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_("Cannot merge %s") % (
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darkred(source_path),))
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del paths_map[idx]
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comeback = True
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break
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elif action == 2:
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print_info(
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_("Deleting %s") % (
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darkgreen(source_path),))
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removed = scandata.remove(source)
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if not removed:
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print_warning(
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_("Cannot remove %s") % (
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darkred(source_path),))
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del paths_map[idx]
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comeback = True
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break
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elif action == 3:
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comeback, _continue = _edit_file(
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idx, entropy_client, root, source, dest,
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paths_map, scandata)
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if _continue:
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continue
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break
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elif action == 4:
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comeback, _continue = _interactive_merge(
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idx, entropy_client, root, source, dest,
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paths_map, scandata)
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if _continue:
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continue
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break
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elif action == 5:
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# show diff again
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diff = showdiff(dest_path, source_path)
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continue
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if comeback:
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return True
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return False
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def _interactive_merge(idx, entropy_client, root, source, dest,
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paths_map, scandata):
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"""
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Interactively merge config file.
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"""
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source_path = root + source
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dest_path = root + dest
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print_info(
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"%s: %s" % (
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darkred(_("Interactive merge")),
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darkgreen(source_path),)
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)
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merge_outcome_path, exit_status = interactive_merge(
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source_path, dest_path)
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if exit_status in (2, 130):
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# quit
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return False, True
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try:
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entropy.tools.rename_keep_permissions(
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merge_outcome_path, source_path)
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except OSError as err:
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print_error(
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"%s: %s" % (
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darkred(_("OSError during interactive merge")),
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repr(err),))
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return False, True
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except IOError as err:
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print_error(
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"%s: %s" % (
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darkred(_("IOError during interactive merge")),
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repr(err),))
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return False, True
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merged = scandata.merge(source)
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del paths_map[idx]
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if not merged:
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print_error(
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"%s: %s" % (
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darkred(_("Unable to merge file")),
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darkgreen(source_path),))
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return True, False
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def _edit_file(idx, entropy_client, root, source, dest,
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paths_map, scandata):
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"""
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Edit the given source file.
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"""
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source_path = root + source
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dest_path = root + dest
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print_info(
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"%s: %s" % (
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darkred(_("Editing file")),
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darkgreen(source_path),))
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entropy_client.edit_file(source_path)
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print_info(
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"%s: %s, %s" % (
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darkred(_("Edited file")),
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darkgreen(source_path),
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darkred(_("showing difference")))
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)
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diff = showdiff(dest_path, source_path)
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if not diff:
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print_info(
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"%s: %s" % (
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darkred(_("Automerging")),
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teal(source_path),)
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)
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scandata.merge(source)
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del paths_map[idx]
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return True, False
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return False, True
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def _automerge(cmd, entropy_client, root, paths_map, scandata):
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"""
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Execute -3 and -5 actions.
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"""
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idxs = sorted(paths_map.keys())
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for idx in idxs:
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_merge(cmd, entropy_client, root, paths_map, idx, scandata)
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def _merge(cmd, entropy_client, root, paths_map, idx, scandata):
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"""
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Execute the config file merge action.
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"""
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try:
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source = paths_map[idx]
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except KeyError:
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# idiot
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return
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data = scandata.get(source)
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if data is None:
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return
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source_path = root + source
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destination_path = root + data['destination']
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print_info(
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"%s: %s" % (
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darkred(_("Source file")),
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teal(source_path),)
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)
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print_info(
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"%s: %s" % (
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darkred(_("Destination file")),
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purple(destination_path),)
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)
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if cmd == -3:
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rc = entropy_client.ask_question(
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">> %s" % (_("Overwrite ?"),) )
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if rc == _("No"):
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return
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merged = scandata.merge(source)
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del paths_map[idx]
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if not merged:
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print_warning(
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"%s: %s" % (
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darkred(_("Cannot merge")),
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brown(source_path),))
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print_info("--")
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def _autodiscard(cmd, entropy_client, root, paths_map, scandata):
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"""
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Execute -7 and -9 actions.
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"""
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idxs = sorted(paths_map.keys())
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for idx in idxs:
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_discard(cmd, entropy_client, root, paths_map, idx, scandata)
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def _discard(cmd, entropy_client, root, paths_map, idx, scandata):
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"""
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Execute the config file discard action.
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"""
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try:
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source = paths_map[idx]
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except KeyError:
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# idiot
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return
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data = scandata.get(source)
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if data is None:
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return
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source_path = root + source
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destination_path = root + data['destination']
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print_info(
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"%s: %s" % (
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darkred(_("Source file")),
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teal(source_path),)
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)
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print_info(
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"%s: %s" % (
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darkred(_("Destination file")),
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purple(destination_path),)
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)
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if cmd == -3:
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rc = entropy_client.ask_question(
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">> %s" % (_("Discard ?"),) )
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if rc == _("No"):
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return
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print_info(
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"%s: %s" % (
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darkred(_("Discarding")),
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teal(source_path),)
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)
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removed = scandata.remove(source)
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del paths_map[idx]
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if not removed:
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print_warning(
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"%s: %s" % (
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darkred(_("Cannot remove")),
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brown(source_path),))
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print_info("--")
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def selfile():
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print_info(darkred(_("Please choose a file to update by typing its identification number.")))
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print_info(darkred(_("Other options are:")))
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print_info(" ("+blue("-1")+") "+darkgreen(_("Exit")))
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print_info(" ("+blue("-3")+") "+brown(_("Automerge all the files asking you one by one")))
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print_info(" ("+blue("-5")+") "+darkred(_("Automerge all the files without questioning")))
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print_info(" ("+blue("-7")+") "+brown(_("Discard all the files asking you one by one")))
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print_info(" ("+blue("-9")+") "+darkred(_("Discard all the files without questioning")))
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# wait user interaction
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action = readtext(_("Your choice (type a number and press enter):")+" ")
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return action
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def selaction():
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print_info(darkred(_("Please choose an action to take for the selected file.")))
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print_info(" ("+blue("-1")+") "+darkgreen(_("Come back to the files list")))
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print_info(" ("+blue("1")+") "+brown(_("Replace original with update")))
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print_info(" ("+blue("2")+") "+darkred(_("Delete update, keeping original as is")))
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print_info(" ("+blue("3")+") "+brown(_("Edit proposed file and show diffs again")))
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print_info(" ("+blue("4")+") "+brown(_("Interactively merge original with update")))
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print_info(" ("+blue("5")+") "+darkred(_("Show differences again")))
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# wait user interaction
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action = readtext(_("Your choice (type a number and press enter):")+" ")
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return action
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def showdiff(fromfile, tofile):
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args = ["diff", "-Nu", "'"+fromfile+"'", "'"+tofile+"'"]
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output = getoutput(' '.join(args)).split("\n")
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coloured = []
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for line in output:
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if line.startswith("---"):
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line = darkred(line)
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elif line.startswith("+++"):
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line = darkgreen(line)
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elif line.startswith("@@"):
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line = brown(line)
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elif line.startswith("-"):
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line = blue(line)
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elif line.startswith("+"):
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line = darkgreen(line)
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coloured.append(line + "\n")
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fd, tmp_path = tempfile.mkstemp()
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with os.fdopen(fd, "w") as f:
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f.writelines(coloured)
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f.flush()
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print("")
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pager = os.getenv("PAGER", "/usr/bin/less")
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if os.access(pager, os.X_OK):
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if pager == "/usr/bin/less":
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args = [pager, "-R", "--no-init", "--QUIT-AT-EOF", tmp_path]
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else:
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args = [pager, tmp_path]
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else:
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args = ["/bin/cat", tmp_path]
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try:
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subprocess.call(args)
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except OSError as err:
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if err.errno != errno.ENOENT:
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raise
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args = ["/bin/cat", tmp_path]
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subprocess.call(args)
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os.remove(tmp_path)
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if output == ['']:
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return []
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return output
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def interactive_merge(source, destination):
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tmp_fd, tmp_path = tempfile.mkstemp()
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args = ("/usr/bin/sdiff", "-o", tmp_path, source, destination)
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try:
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rc = subprocess.call(args)
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except OSError as err:
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if err.errno != errno.ENOENT:
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raise
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rc = 2
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os.remove(tmp_path)
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finally:
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os.close(tmp_fd)
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return tmp_path, rc
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