$ find ~/foo -xattr user.comment
/home/skx/foo/bar/t.txt
/home/skx/foo/bar/xc.txt
/home/skx/foo/bar/x.txt

Changes in RcppArmadillo version 0.4.450.1.0 (2014-09-21)

• Upgraded to Armadillo release Version 4.450.1 (Spring Hill Fort)
  • faster handling of matrix transposes within compound expressions
  • expanded symmatu()/symmatl() to optionally disable taking the complex conjugate of elements
  • expanded sort_index() to handle complex vectors
  • expanded the gmm_diag class with functions to generate random samples
• A new random-number implementation for Armadillo uses the RNG from R as a fallback (when C++11 is not selected so the C++11-based RNG is unavailable) which avoids using the older C++98-based std::rand
• The RcppArmadillo.package.skeleton() function was updated to only set an "Imports:" for Rcpp, but not RcppArmadillo which (as a template library) needs only LinkingTo:
• The RcppArmadillo.package.skeleton() function will now prefer pkgKitten::kitten() over package.skeleton() in order to create a working package which passes R CMD check.
• The pkgKitten package is now a Suggests:
• A manual page was added to provide documentation for the functions provided by the skeleton package.
• A small update was made to the package manual page.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

• I changed the screen size to match the Kobo s resolution. Using xrandr s --panning option this is possible even though my real screen is only 900 pixels high.
• I disabled the cursor-blink where possible. In general, screen updates should be avoided, so I hide my taffybar (which has a CPU usage monitor) and text is best written at the very end of the line (and not before a, say, </p>).
• My terminal windows are now black-on-white.
• I had to increase my font-size a bit (the kobo has quite a high DPI), and color is not helpful (so :set syntax=off in vim).

1. Check existence of a header e.g. Received: (at 657783-done) by bugs.debian.org; 29 Jan 2012 13:27:42 +0000
2. Check for header CC: NUMBER-close done
3. Check for header TO: NUMBER-close done
4. Check for Close: NUMBER in body.

import requests
from datetime import datetime
import mailbox
import re
import os
import tempfile
def get_done_date(bug_num):
    CACHE_DIR = os.path.expanduser("~") + "/.cache/rfs_bugs/"
    def get_from_cache():
        if os.path.exists(" ".format(CACHE_DIR, bug_num)):
            with open(" ".format(CACHE_DIR, bug_num)) as f:
                return datetime.strptime(f.readlines()[0].rstrip(), "%Y-%m-%d").date()
        else:
            return None
    done_date = get_from_cache()
    if done_date is not None:
        return done_date
    else:
        r = requests.get("https://bugs.debian.org/cgi-bin/bugreport.cgi?mbox=yes;bug= ;mboxstatus=yes".format(self._num))
        d = try_header(r.text)
        if d is None:
            d = try_cc(r.text)
        if d is None:
            d = try_body(r.text)
        if d is not None:
            with open(" ".format(CACHE_DIR, bug_num), "w") as f:
                f.write(" ".format(d.date()))
        else:
            return None
        return d.date()
    def try_body(text):
        reg = "\(at\s.+\)\s+by\sbugs\.debian\.org;\s(\d 1,2 \s\w\w\w\s\d\d\d\d)"
        handle, name = tempfile.mkstemp()
        with open(name, "w") as f:
            f.write(text.encode('latin-1'))
        mbox = mailbox.mbox(name)
        for i in mbox.items():
            if i[1].is_multipart():
                for m in i[1].get_payload():
                    if "close" in str(m) or "done" in str(m):
                        try:
                            result = re.search(reg, i[1]['Received'])
                            return datetime.strptime(result.group(1), "%d %b %Y")
                        except:
                            return None
            else:
                if "close" in i[1].get_payload() or "done" in i[1].get_payload():
                    try:
                        result = re.search(reg, i[1]['Received'])
                        return datetime.strptime(result.group(1), "%d %b %Y")
                    except:
                        return None
        return None
    def try_header(text):
        reg = "Received:\s\(at\s\d\d\d\d\d\d-(close done)\)\s+by.+"
        try:
            result = re.search(reg, r.text)
            line = result.group(0)
            reg2 = "\d 1,2 \s\w\w\w\s\d\d\d\d"
            result = re.search(reg2, line)
            d = datetime.strptime(result.group(0), "%d %b %Y")
            return d
        except:
            return None
    def try_cc(text):
        reg = "\(at\s.+\)\s+by\sbugs\.debian\.org;\s(\d 1,2 \s\w\w\w\s\d\d\d\d)"
        handle, name = tempfile.mkstemp()
        with open(name, "w") as f:
            f.write(text.encode('latin-1'))
        mbox = mailbox.mbox(name)
        for i in mbox.items():
            if ('CC' in i[1] and "done" in i[1]['CC']) or ('To' in i[1] and "done" in i[1]['To']):
                try:
                    result = re.search(reg, i[1]['Received'])
                    return datetime.strptime(result.group(1), "%d %b %Y")
                except:
                    return None
if __name__ == "__main__":
    print get_done_date(752210)

git://people.freedesktop.org/~keithp/xserver.git

1. A simple bug -- protocol.txt is left open while the server runs. This consumes a file descriptor for no good reason.
2. protocol.txt is read and parsed even if the security extensions aren't available. This wastes time and memory.
3. The resource names are kept even if X-Resource isn't in use.

1. Scale a large pixmap down to a small pixmap. This happens when you display enormous images in a web page. Iceweasel sends the whole huge image to X and uses Render to scale it to the screen. If the image is larger than a single texture, the X server splits it up into tiles, but the code which tries to perform the merged scale is just broken. Five patches fix this.
2. Shader-based trapezoids. This code uses area coverage to compute trapezoids. That violates the Render spec, which requires point sampling. Further, the performance of these trapezoids is lower than software (by a lot). This one patch removes the code.

1. Clear pending flips at CloseScreen. This removes a reference to any pending flip pixmap, allowing it to be freed. Otherwise, we'll leak memory across server reset.
2. Add support for PresentOptionCopy. This has been in the protocol spec for a while, and was completely trivial to implement. However, it never got done. One tiny little patch.
3. Expose the Present API to drivers via sdksyms.sh. Until now, the present extension APIs have only been available inside the X server. This exposes them to drivers. This took a few cleanup patches first.

1. Switch single channel surfaces from GL_ALPHA to GL_RED.
2. Use vertex array objects.
3. Switch ephyr over to using a core 3.3 profile.

1. Switch Render code to VBOs

• #711418 src:libanyevent-dbi-perl: "libanyevent-dbi-perl: FTBFS: Failed test 'Using an unknown function results in error'"
  add patch for newer SQLite (pkg-perl)
• #756566 libxml-dt-perl: "libxml-dt-perl: Insecure use of temporary files (CVE-2014-5260)"
  upload new upstream release (pkg-perl)
• #759838 src:padre: "padre: FTBFS: Failed test 'no warnings'"
  fix 2/3 of the test failures in git, last one fixed by dod (pkg-perl)
• #759942 src:cpanminus: "cpanminus: FTBFS: Can't write to cpanm home '/sbuild-nonexistent/.cpanm': You should fix it with chown/chmod first."
  set HOME once more in debian/rules (pkg-perl)
• #759964 src:libhtml-formhandler-model-dbic-perl: "libhtml-formhandler-model-dbic-perl: FTBFS: dh_auto_test: make -j1 test returned exit code 2"
  upload new upstream release (pkg-perl)
• #761312 libdbix-class-resultset-recursiveupdate-perl: "libdbix-class-resultset-recursiveupdate-perl: missing dependency on liblist-moreutils-perl"
  add missing dependency (pkg-perl)
• #761313 libgeo-google-mapobject-perl: "libgeo-google-mapobject-perl: missing dependency on libjson-perl"
  add missing dependency (pkg-perl)
• #761315 libfile-read-perl: "libfile-read-perl: missing dependency on libfile-slurp-perl"
  add missing dependency (pkg-perl)
• #761319 libpod-wordlist-hanekomu-perl: "libpod-wordlist-hanekomu-perl: missing dependency on libtest-spelling-perl"
  add missing dependency (pkg-perl)
• #761526 src:liblocale-maketext-gettext-perl: "liblocale-maketext-gettext-perl: FTBFS: Tests failures"
  skip test which needs internet and a writable $HOME (pkg-perl)
• #761558 src:libposix-strptime-perl: "libposix-strptime-perl: FTBFS: Tests failures"
  skip test which needs internet and a writable $HOME (pkg-perl)

Changes in version 0.1.2 (2014-09-11)

• Brown-bag fix of calling the new helper function with then correct order of arguments.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

• No support of nested C function
• Wrong C++ default declaration in a method
• Variable length array for a non POD (plain old data) element
• Tautological comparison
• Conflicting types
• Changes of default constructor
• Potential usage of an uninitialized variable
• Use of old GNU field designator
• Missing symbols at link time (inline in C99)
• and others

• -z keyword - r213198
• -u Force symbol to be entered in the output file as an undefined symbol - r211756. This one fixed most of the haskell build failures. It fixed the most common issue that we had (701 occurrences but this does not mean that all these packages build fine now, some haskell-based package are failing later in the process)

• Absolute value error - 6 occurences
• Tautological pointer comparison - 10 occurences

• Header guard failure
• Unknown/unexpected directive
• Object is not a function or function pointer

• Point me common error patterns in the Not categorized list of errors to create new categories
• Report and fix packages
• As an upstream, integrate clang as part of your continuous integration system
• Hack on cqa-scanlogs, the error detection tool to detect error patterns (example: Undetected error). This tool is used also for the regular rebuilds of the archive.
• Improve clang.debian.net website

Changes in version 0.1.1 (2014-09-09)

• New (exported) function playWithPerPackageHelpPage() which lets other packages create a non-complaint-generating package help page

Changes in version 0.1.0 (2014-06-13)

• Initial public version and CRAN upload

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

• Thorsten Alteholz: July / August
• Holger Levsen: July / August

1. Paid contributors already handle almost 70% of the updates. Counting only on volunteers would not have worked.
2. Quite a few companies that promised help (and got mentioned in the press release) have not delivered the promised help yet (neither through Freexian nor directly).

• Gold sponsors:
  • The Positive Internet
• Silver sponsors:
  • AD&D David Ayers IntarS Austria
  • Blablacar
  • Domeneshop AS
  • Evolix
  • Universit Lille 3
• Bronze sponsors:
  • Freeside Internet Service
  • MyTux
  • Offensive Security
  • Seznam.cz, a.s.

One comment Liked this article? Click here. My blog is Flattr-enabled.

• Those that run standard daemons, with nothing special.
• Those that run different services under runit
  • For example docker guests, node.js applications, and similar.

#!/bin/sh
#
# Run Graphite in a detached state.
#
/usr/bin/docker run -d -t -i -p 8080:80 -p 2003:2003 skxskx/graphite

root@chat ~ # systemctl status prosody.service 
prosody.service - LSB: Prosody XMPP Server
      Loaded: loaded (/etc/init.d/prosody)
      Active: active (running) since Wed, 03 Sep 2014 07:59:44 +0100; 18h ago
      CGroup: name=systemd:/system/prosody.service
            942 lua5.1 /usr/bin/prosody

R> library(rbenchmark)
R> f <- function(cmd)   system(paste0("bash -c \"for i in \\$(seq 1 250); do ", cmd, " -e 'q()'; done\""));  
R> res <- benchmark(f("r"), f("Rscript"), f("R --slave"), replications=5, order="relative")
R> res
            test replications elapsed relative user.self sys.self user.child sys.child
1         f("r")            5  32.256    1.000     0.001    0.004     26.538     5.706
2   f("Rscript")            5 180.154    5.585     0.001    0.004    152.751    28.522
3 f("R --slave")            5 302.714    9.385     0.001    0.004    270.569    33.098
R> 

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.