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authorRené 'Necoro' Neumann <necoro@necoro.net>2008-09-02 13:01:17 +0200
committerRené 'Necoro' Neumann <necoro@necoro.net>2008-09-02 13:01:17 +0200
commitafa1de13f0576ace6dcbb0176490fd20922950cd (patch)
tree056a5fd646f53dfa83f2fe231ec0943747b15ffc /portato/gui/updater.py
parent02d96210d9102f0cdec95b4e0f595cbd8fdd1e10 (diff)
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-rw-r--r--portato/gui/updater.py200
1 files changed, 100 insertions, 100 deletions
diff --git a/portato/gui/updater.py b/portato/gui/updater.py
index c4c81e7..c4ad2a5 100644
--- a/portato/gui/updater.py
+++ b/portato/gui/updater.py
@@ -18,109 +18,109 @@ import threading, subprocess, time
from ..helper import debug, warning, error
class Updater (object):
- """
- This class is intended to check what package is currently being installed and remove this one from the queue.
+ """
+ This class is intended to check what package is currently being installed and remove this one from the queue.
- @cvar SED_EXP: The sed expression to strip the package name out of the qlop call.
- """
-
- SED_EXP = r"""
+ @cvar SED_EXP: The sed expression to strip the package name out of the qlop call.
+ """
+
+ SED_EXP = r"""
/\*/{
s/ \* //
n
}
d"""
-
- def __init__ (self, queue, iterators, threadClass = threading.Thread):
- """
- Constructor.
- Also directly initializes the thread.
-
- @param queue: an emerge queue instance
- @type queue: EmergeQueue
- @param iterators: a dictionary of iterators in the current queue
- @type iterators: dict(string->Iterator)
- """
-
- if not issubclass(threadClass, threading.Thread):
- raise ValueError, "Only subclasses of threading.Thread are allowed."
-
- self.queue = queue
- self.iterators = iterators
- self.threadClass = threadClass
- self.stopEvent = threading.Event()
- self.removed = set()
-
- t = threadClass(name = "Queue Updater Thread", target = self.run)
- t.setDaemon(True)
- t.start()
-
- def run (self):
- """
- Run and run and run ...
- Checks the packages until being stopped.
- """
-
- curr = set()
- while not self.stopEvent.isSet():
-
- # this = $(qlop -cCq | sed $SED_EXP)
- p1 = subprocess.Popen(["qlop", "--current", "--nocolor", "--quiet"], stdout = subprocess.PIPE)
- this = subprocess.Popen(["sed", self.SED_EXP], stdout = subprocess.PIPE, stdin = p1.stdout).communicate()[0]
-
- this = set(this.split()) if this else set()
- for removed in curr - this:
- self.remove(self.find(removed)) # remove the previous
- curr = this
-
- time.sleep(2.0)
-
- self.removed = set()
-
- def stop (self):
- """
- Stops the current updater.
- """
- self.stopEvent.set()
-
- def find (self, pv, masked = False):
- """
- As qlop only returns 'package-version' we need to assign it to a cpv.
- This is done here.
- """
-
- pkgs = system.find_packages("=%s" % pv, only_cpv = True, masked = masked)
-
- if len(pkgs) > 1: # ambigous - try to find the one which is also in the iterators
- for p in pkgs:
- if p in self.iterators:
- return p
- elif not pkgs: # nothing found =|
- if not masked:
- warning(_("No unmasked version of package '%s' found. Trying masked ones. This normally should not happen..."), pv)
- return self.find(pv, True)
-
- else:
- error(_("Trying to remove package '%s' from queue which does not exist in system."), pv)
- return None
- else: # only one choice =)
- return pkgs[0]
-
- def remove (self, cpv):
- """
- Remove a package from the queue.
- """
-
- if cpv is None:
- debug("Nothing to remove.")
- return
-
- if cpv in self.removed:
- return
-
- self.removed.add(cpv)
-
- try:
- self.queue.remove_with_children(self.iterators[cpv])
- except KeyError:
- debug("'%s' should be removed, but is not in queue.", cpv)
+
+ def __init__ (self, queue, iterators, threadClass = threading.Thread):
+ """
+ Constructor.
+ Also directly initializes the thread.
+
+ @param queue: an emerge queue instance
+ @type queue: EmergeQueue
+ @param iterators: a dictionary of iterators in the current queue
+ @type iterators: dict(string->Iterator)
+ """
+
+ if not issubclass(threadClass, threading.Thread):
+ raise ValueError, "Only subclasses of threading.Thread are allowed."
+
+ self.queue = queue
+ self.iterators = iterators
+ self.threadClass = threadClass
+ self.stopEvent = threading.Event()
+ self.removed = set()
+
+ t = threadClass(name = "Queue Updater Thread", target = self.run)
+ t.setDaemon(True)
+ t.start()
+
+ def run (self):
+ """
+ Run and run and run ...
+ Checks the packages until being stopped.
+ """
+
+ curr = set()
+ while not self.stopEvent.isSet():
+
+ # this = $(qlop -cCq | sed $SED_EXP)
+ p1 = subprocess.Popen(["qlop", "--current", "--nocolor", "--quiet"], stdout = subprocess.PIPE)
+ this = subprocess.Popen(["sed", self.SED_EXP], stdout = subprocess.PIPE, stdin = p1.stdout).communicate()[0]
+
+ this = set(this.split()) if this else set()
+ for removed in curr - this:
+ self.remove(self.find(removed)) # remove the previous
+ curr = this
+
+ time.sleep(2.0)
+
+ self.removed = set()
+
+ def stop (self):
+ """
+ Stops the current updater.
+ """
+ self.stopEvent.set()
+
+ def find (self, pv, masked = False):
+ """
+ As qlop only returns 'package-version' we need to assign it to a cpv.
+ This is done here.
+ """
+
+ pkgs = system.find_packages("=%s" % pv, only_cpv = True, masked = masked)
+
+ if len(pkgs) > 1: # ambigous - try to find the one which is also in the iterators
+ for p in pkgs:
+ if p in self.iterators:
+ return p
+ elif not pkgs: # nothing found =|
+ if not masked:
+ warning(_("No unmasked version of package '%s' found. Trying masked ones. This normally should not happen..."), pv)
+ return self.find(pv, True)
+
+ else:
+ error(_("Trying to remove package '%s' from queue which does not exist in system."), pv)
+ return None
+ else: # only one choice =)
+ return pkgs[0]
+
+ def remove (self, cpv):
+ """
+ Remove a package from the queue.
+ """
+
+ if cpv is None:
+ debug("Nothing to remove.")
+ return
+
+ if cpv in self.removed:
+ return
+
+ self.removed.add(cpv)
+
+ try:
+ self.queue.remove_with_children(self.iterators[cpv])
+ except KeyError:
+ debug("'%s' should be removed, but is not in queue.", cpv)