debbugs.Rnw

   1
   2 %\usepackage{libertine}
   3 \usepackage{fontspec}
   4 \setmainfont[Ligatures=TeX]{FreeSerif}
   5 \setsansfont[Ligatures=TeX]{FreeSans}
   6 \setmonofont{FreeMono}
   7 \usepackage[Symbols]{ucharclasses}
   8 \newfontfamily{\defaultfont}{FreeSerif}
   9 %\newfontfamily{\symbolfont}{FreeSerif}
  10 \newfontfamily{\sansfont}{FreeSans}
  11 \setDefaultTransitions{\bgroup\defaultfont}{\egroup}
  12 \usepackage{url}
  13 \usepackage{fancyhdr}
  14 \usepackage{graphicx}
  15 \usepackage[bf]{caption}
  16 \usepackage{rotating}
  17 \usepackage{wrapfig}
  18 \usepackage{fancybox}
  19 \usepackage{booktabs}
  20 \usepackage{minted}
  21 \usepackage{tcolorbox}
  22 \usepackage{etoolbox}
  23 \BeforeBeginEnvironment{minted}{\begin{tcolorbox}}%
  24 \AfterEndEnvironment{minted}{\end{tcolorbox}}%
  25 % \usepackage{multirow}
  26 \usepackage{acronym}
  27 \usepackage{qrcode}
  28 \usepackage[backend=biber,natbib=true,hyperref=true,style=nature]{biblatex}
  29 \addbibresource{references.bib}
  30 % \usepackage[nomargin,inline,draft]{fixme}
  31 % \newcommand{\DLA}[1]{\textcolor{red}{\fxnote{DLA: #1}}}
  32 % \usepackage[hyperfigures,bookmarks,colorlinks,citecolor=black,filecolor=black,linkcolor=black,urlcolor=black]{hyperref}
  33 \usepackage{texshade}
  34 \usepackage{tikz}
  35 \usepackage{nameref}
  36 \usepackage{zref-xr,zref-user}
  37 \renewcommand*{\bibfont}{\tiny}
  38 \usepackage[absolute,overlay]{textpos}
  39
  40 \mode<presentation>
  41 {
  42   \usetheme{Montpellier}
  43   %\useoutertheme[hideallsubsections]{debiansidebar}
  44 %  \setbeamercovered{transparent}
  45 }
  46
  47 \setbeamertemplate{navigation symbols}{}%remove navigation symbols
  48
  49 \usepackage[nomargin,inline,draft]{fixme}
  50 \usepackage{listings}
  51
  52
  53 \logo{\begin{tikzpicture}% Pale figure
  54     {\node[opacity=0.3] {\includegraphics[width=2cm,keepaspectratio]{figures/openlogo-crop.pdf}};}%
  55     \end{tikzpicture}}
  56 \author{Don Armstrong}
  57 \title{Debbugs}
  58 \subtitle{22 Years of Bugs}
  59 \date{August 10th, 2017}
  60 \titlegraphic{\includegraphics[height=0.2\textheight,keepaspectratio]{figures/openlogo-crop.pdf}}
  61 \subject{BTS}
  62
  63 \setbeamercolor{postit}{fg=black,bg=yellow}
  64
  65 % State of the BTS: new features, changes and tips
  66 %
  67 % The bug tracking system is where all bugs that affect Debian are
  68 % filed. New features, including the affects, summary, and local debbugs
  69 % mirror will be presented and demonstrated. Some of the underlying
  70 % architectural changes to the codebase in debbugs to make it more
  71 % maintainable and deployable are also outlined. Finally, a set of tips
  72 % and tricks that can be used to make the BTS easier to use are
  73 % presented.
  74 %
  75 %  - New Features
  76 %    - affects
  77 %    - summary
  78 %    - local debbugs mirror for offline work
  79 %    - New SOAP
  80 %      - full text search
  81 %      - filtering bugs
  82 %    - multi-distribution/arch status
  83 %    - control changes at submit@ time
  84 %  - Code Architecture Changes
  85 %    - Modularization
  86 %    - Control abstraction
  87 %    - release to experimental
  88
  89
  90 <<load.libraries,echo=FALSE,results="hide",error=FALSE,message=FALSE,cache=FALSE>>=
  91 library(lattice)
  92 library(xtable)
  93 library(ggplot2)
  94 library("scales")
  95 library(reshape2)
  96 library("data.table")
  97 opts_chunk$set(dev="cairo_pdf",out.width="\\textwidth",out.height="0.8\\textheight",out.extra="keepaspectratio",fig.width=6/1.2,fig.height=4/1.2)
  98 opts_chunk$set(cache=TRUE, autodep=TRUE)
  99 options(device = function(file, width = 6/1.2, height = 4/1.2, ...) {
 100   cairo_pdf(tempfile(), width = width, height = height, ...)
 101 })
 102
 103 @
 104
 105 <<scientific_format,echo=FALSE>>=
 106 scientific_10 <- function(x) {
 107   parse(text=gsub("e", " %*% 10^", scientific_format()(x)))
 108 }
 109 @
 110
 111 \begin{document}
 112
 113 %\setbeamercolor{frametitle}[bg=-red!90!green!10,fg=black]
 114
 115 \frame[plain]{\titlepage
 116   Code and slides are here:
 117   \qrcode[padding]{https://dla2.us/p/debbugs2017}
 118   \url{https://dla2.us/p/debbugs2017}
 119
 120 }
 121
 122 % \begin{frame}{Debbugs}
 123 %   \tableofcontents[subsectionstyle=hide]
 124 % \end{frame}
 125
 126 \section{Introduction to Debbugs}
 127
 128 \subsection{Introduction}
 129 \begin{frame}{Goals of this talk}
 130   \begin{columns}
 131     \column{0.5\textwidth}
 132     \begin{itemize}
 133     \item Bug Statistics
 134     \item New features
 135     \item How you can help
 136     \item Answer questions/discussion
 137     \end{itemize}
 138     \column{0.4\textwidth}
 139     \includegraphics[width=\textwidth,keepaspectratio]{images/rc_buggy}
 140   \end{columns}
 141 \end{frame}
 142 \begin{frame}{Goals of the BTS}
 143   \begin{columns}
 144   \column{0.4\textwidth}
 145     \includegraphics[width=\textwidth,keepaspectratio]{images/not_a_bug}
 146   \column{0.6\textwidth}
 147   \begin{itemize}
 148   \item Reporting of \only<1>{Features}\only<2>{Bugs}
 149   \item Evolution of \only<1>{Features}\only<2>{Bugs}
 150   \item Fixing of \only<1>{Features}\only<2>{Bugs}
 151   \item Reducing impact of \only<1>{Features}\only<2>{Bugs}
 152   \end{itemize}
 153 \end{columns}
 154 \end{frame}
 155
 156 \section{Bugs in Debian}
 157 \subsection{Bug Reporting Rate}
 158 \begin{frame}{Bugs from the beginning of time}
 159   \begin{center}
 160 <<bug.growth,fig=TRUE,echo=FALSE,cache.extra=file.info("data/sorted_bug_growth_for_r_every_500.txt")[,"mtime"]>>=
 161 bug.growth <- fread("data/sorted_bug_growth_for_r_every_500.txt")
 162 colnames(bug.growth) <- c("time","bugs")
 163 bug.growth <- bug.growth[pmax(bugs) <= as.numeric(bugs),]
 164 bug.growth <- bug.growth[order(time),]
 165 while (bug.growth[,any(c(0,diff(bugs)) < 0)]) {
 166        bug.growth <-
 167            bug.growth[c(0,diff(bugs))>=0,]
 168 }
 169 bug.growth[,date:=
 170                 as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+
 171                            as.numeric(bug.growth$time))]
 172 bug.growth[,`bugs per day`:=c(0,diff(bugs)/
 173                                 as.double(diff(date),"days"))
 174            ]
 175 print(ggplot(bug.growth,#[date > as.POSIXct(ISOdatetime(2005,1,1,0,0,0)),],
 176              aes(x=date,y=bugs))+
 177       xlab("Time")+ylab("Bugs filed in Debian")+
 178       scale_y_continuous(labels = scientific_10)+
 179       geom_point())
 180 @
 181 \end{center}
 182 \end{frame}
 183
 184 \begin{frame}[fragile]{Bug Growth Rate}
 185 <<bug_growth_rate,echo=FALSE>>=
 186 print(ggplot(bug.growth[date > as.POSIXct(ISOdatetime(2014,1,1,0,0,0)),],
 187              aes(x=date,y=`bugs per day`))+
 188       xlab("Time")+ylab("Bugs filed per day")
 189       + scale_y_log10(breaks=c(60,100,200,400,800))
 190       + geom_line()+stat_smooth(method="lm")
 191       + geom_label(data=data.table(date=as.POSIXct(ISOdatetime(2015,04,25,0,0,0)),"bugs per day"=400),label="Jessie",color="red")
 192       + geom_label(data=data.table(date=as.POSIXct(ISOdatetime(2017,06,17,0,0,0)),"bugs per day"=400),label="Stretch",color="purple")
 193       )
 194 @
 195 \end{frame}
 196
 197 \begin{frame}[fragile]{Is the bug filing rate decreasing?}
 198 \tiny
 199 <<bug_growth_rate_over_time>>=
 200 summary(lm(log(`bugs per day`)~date,bug.growth[date > "2014-01-01 PST",]))
 201 @
 202 \normalsize
 203 Not significantly decreasing.
 204 \end{frame}
 205
 206 \begin{frame}{My entries into Christian's game}
 207   \begin{columns}
 208     \column{0.5\textwidth}
 209   \begin{center}
 210 <<bugs.filed,fig=TRUE,echo=FALSE,warning=FALSE,fig.width=3,fig.height=3>>=
 211 print(ggplot(bug.growth[date > as.POSIXct(ISOdatetime(2015,1,1,0,0,0)),],
 212              aes(x=date,y=bugs))+
 213       xlab("Time")+ylab("Bugs filed in Debian")+
 214       scale_y_continuous(labels = scientific_10)+
 215       geom_point()+stat_smooth(method="lm"))
 216 bugs.filed.per.day <-
 217   lm(bugs~date,bug.growth)$coeff[2]*3600*24
 218 temp.lm <- lm(date~bugs,bug.growth[date > as.POSIXct(ISOdatetime(2015,1,1,0,0,0)),])
 219 bug.880000 <-
 220     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=880000,date=NA))))
 221 bug.900000 <-
 222     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=900000,date=NA))))
 223 bug.1000000 <-
 224     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=1000000,date=NA))))
 225 @
 226 \end{center}
 227 \column{0.5\textwidth}
 228 Roughly \Sexpr{format(bugs.filed.per.day,digits=1)} bugs are filed per
 229 day. The 880000th bug will be filed at \Sexpr{bug.880000}, the
 230 900000th bug will be filed at \Sexpr{bug.900000}, and bug one million will be filled
 231 \Sexpr{bug.1000000}.
 232 \end{columns}
 233 \end{frame}
 234
 235
 236 \subsection{Bug Fixing Rate}
 237 \begin{frame}
 238   \begin{center}
 239 <<bugs.closed,fig=TRUE,echo=FALSE,width=7,height=5,warning=FALSE,error=FALSE,cache.extra=file.info("data/bug_closed_time_series.txt")[,"mtime"]>>=
 240 bug.closed.series <- fread(file="data/bug_closed_time_series.txt")
 241 colnames(bug.closed.series) <- c("archived.bugs","year.week")
 242 bug.closed.series[,week:=
 243     gsub("(\\d+)-(\\d+)","\\2",year.week)]
 244 bug.closed.series[,year:=
 245     gsub("(\\d+)-(\\d+)","\\1",year.week)]
 246 bug.closed.series[,doy:= as.numeric(week)*7]
 247 bug.closed.series[,year.doy:=
 248                        paste(sep="-",year,doy)]
 249 bug.closed.series[,date:=
 250                        as.POSIXct(strptime(year.doy,
 251                                            format="%Y-%j"))]
 252
 253 # bug.closed.ts <- ts(bug.closed.series[,1],start=1,frequency=7)
 254
 255 print(ggplot(bug.closed.series[date > as.POSIXct(ISOdatetime(2008,1,1,0,0,0)),],
 256              aes(x=date,y=archived.bugs/7))+geom_line()+stat_smooth(method="lm")+
 257       ylab("Bugs archived Per Day")+xlab("Time"))
 258 bugs.closed.per.day <-
 259     bug.closed.series[,sum(archived.bugs)]/
 260     as.numeric(bug.closed.series[nrow(bug.closed.series),date]-
 261                bug.closed.series[1,date])
 262 @
 263   \end{center}
 264 Roughly \Sexpr{format(bugs.closed.per.day,digits=1)} bugs are closed per day.
 265 \end{frame}
 266
 267 \subsection{RC Bugs}
 268 \begin{frame}{RC Bugs in the Past Year}
 269   \begin{center}
 270 <<rc.bugs,fig=TRUE,echo=FALSE,warning=FALSE,cache.extra=file.info("data/rc_bugs.txt")[,"mtime"]>>=
 271 rc.bugs <-
 272     data.table(read.table(file="data/rc_bugs.txt",
 273                           header=TRUE,fill=TRUE))
 274 rc.bugs[,date:=
 275              as.POSIXct(strptime(date,
 276                                  format="%Y%m%d%H%M"))]
 277 rc.bugs[,unknown:=NULL]
 278 rc.bugs[,unknown.1:=NULL]
 279 for (i in 1:10) {
 280     rc.bugs <- rc.bugs[c(0,diff(total)) > -1000,]
 281 }
 282 rc.bugs.long <-
 283     data.table(melt(rc.bugs,id="date"))
 284 print(ggplot(rc.bugs.long[date >
 285                           as.POSIXct(ISOdatetime(2016,08,1,0,0,0)),]
 286             ,aes(x=date,y=value,color=variable))+
 287       geom_line()+
 288       ylab("# of Release Critical Bugs")+xlab("Time")+
 289       theme(legend.position="top")+
 290       scale_color_discrete("Measure"))
 291 @
 292 \end{center}
 293 \end{frame}
 294
 295 \section{Debbugs Structure and Infrastructure}
 296
 297 \subsection{BTS System Diagram}
 298 \begin{frame}{BTS system Diagram}
 299   \begin{center}
 300     \includegraphics[width=\textwidth,height=\textheight,keepaspectratio]{figures/bug_global_layout}
 301   \end{center}
 302 \end{frame}
 303
 304 \subsection{Debbugs Box Diagram}
 305 \begin{frame}{Debbugs Box Diagram}
 306   \begin{center}
 307     \input{debbugs_layout}
 308   \end{center}
 309 \end{frame}
 310
 311 \section{New Features}
 312
 313 \subsection{Database}
 314
 315 \subsubsection{Perl Database Infrastucture}
 316 \begin{frame}{Perl Database Infrastructure}
 317   \begin{itemize}
 318   \item DBIx::Class
 319   \item DBIx::Class::Schema::Loader -- SQL schema to DBIx::Class
 320   \item DBIx::Class::DeploymentHandler -- Upgrades of Schema
 321   \item Debbugs::DB -- Debbugs SQL Module
 322   \end{itemize}
 323 \end{frame}
 324
 325
 326 \subsubsection{SQL Loading}
 327 \begin{frame}[fragile]{SQL Loading}
 328   % SQL loading
 329   \begin{itemize}
 330   \item Load bugs
 331 \begin{minted}{sh}
 332 debbugs-loadsql bugs;
 333 debbugs-loadsql bugs archive;
 334 \end{minted}
 335   \item Load Versioning information
 336 \begin{minted}{sh}
 337 debbugs-loadsql versions;
 338 debbugs-loadsql debinfo;
 339 \end{minted}
 340   \end{itemize}
 341 \end{frame}
 342
 343 \subsubsection{Fun Queries}
 344
 345 \begin{frame}[fragile]{Messages to bugs}
 346 \small
 347 \begin{minted}{sql}
 348 SELECT count(*),c.addr FROM
 349 message_correspondent mc
 350 JOIN correspondent c ON mc.correspondent=c.id
 351 WHERE correspondent_type='from'
 352 GROUP BY mc.correspondent,c.addr
 353 ORDER BY count DESC LIMIT 5;
 354 \end{minted}
 355 \begin{verbatim}
 356  count |              addr
 357 -------+---------------------------------
 358   5123 | bubulle@debian.org
 359   4346 | joeyh@debian.org
 360   4214 | biebl@debian.org
 361   3875 | tbm@cyrius.com
 362   3632 | ftpmaster@ftp-master.debian.org
 363 \end{verbatim}
 364 \end{frame}
 365
 366 \begin{frame}[fragile]{Single-message correspondents}
 367 \small
 368 \begin{minted}{sql}
 369 SELECT count (*) FROM
 370 (SELECT count(*),c.addr
 371  FROM message_correspondent mc
 372  JOIN correspondent c ON
 373  mc.correspondent=c.id
 374  WHERE correspondent_type='from'
 375  GROUP BY mc.correspondent,
 376  c.addr
 377  HAVING count(*) = 1) AS foo;
 378 \end{minted}
 379 \begin{verbatim}
 380  count
 381 -------
 382  30215
 383 \end{verbatim}
 384 \end{frame}
 385
 386
 387
 388 \begin{frame}[fragile]{More fun queries}
 389 \begin{minted}{sql}
 390 SELECT count(*),t.tag
 391 FROM bug b
 392 JOIN bug_tag bt ON b.id=bt.bug
 393 JOIN tag t on bt.tag=t.id
 394 GROUP by bt.tag,t.tag
 395 ORDER by count DESC LIMIT 5;
 396 \end{minted}
 397 \begin{verbatim}
 398  count  |      tag
 399 --------+----------------
 400  141184 | patch
 401   42288 | upstream
 402   39466 | sid
 403   33640 | l10n
 404   25566 | fixed-upstream
 405 \end{verbatim}
 406 \end{frame}
 407
 408 \subsection{Database status caching}
 409 \begin{frame}[fragile]{Status caching ``working''}
 410 \begin{minted}{sql}
 411 SELECT count(*),status
 412 FROM bug_status_cache bsc
 413 JOIN suite s ON bsc.suite=s.id
 414 WHERE s.suite_name='unstable'
 415 GROUP by status;
 416 \end{minted}
 417 \begin{verbatim}
 418  count  | status
 419 --------+--------
 420  514488 | fixed
 421  234155 | absent
 422    3923 | found
 423 \end{verbatim}
 424 \end{frame}
 425
 426 \subsection{Work still needed for SQL}
 427 \begin{frame}{Work Still needed for SQL}
 428 \begin{itemize}
 429 \item Integration into CGI (\texttt{bugreport.cgi} and
 430   \texttt{pkgreport.cgi})
 431 \item Database loading/update is slow in some cases
 432 \item Some corrupted bugs have been exposed by the loading (#167851
 433   and #280931); likely others
 434 \item Testing (Mainly of queries)
 435 \item Deployment
 436 \end{itemize}
 437 \end{frame}
 438
 439 \section{New(ish) Features}
 440
 441 \subsection{New Changes}
 442 \begin{frame}{New Changes}
 443   \begin{columns}
 444     \column{0.5\textwidth}
 445     \begin{itemize}
 446   \item Format-flowed messages are wrapped
 447   \item https links everywhere
 448   \item etag caching support everywhere
 449   \item a11y (accessibility, ♿) tag
 450   \item newcomer (⎈) tag
 451   \item Usercategories now selectable (Categorize/order using)
 452   \end{itemize}
 453     \column{0.5\textwidth}
 454     \includegraphics[width=\textwidth,keepaspectratio]{images/telegraph_bug}
 455 \end{columns}
 456 \end{frame}
 457
 458 \section{Contributing to Debbugs}
 459
 460 \begin{frame}{7 tasks seeking contributors}
 461   \begin{itemize}
 462   \item Documentation of Usercategories
 463   \item Implementation of rss feeds for packages and bugs
 464   \item CGI options on pkgreport.cgi for usertags et al. \#536378)
 465   \item Documentation of multiple-package reassign and when it or
 466     affects should be used
 467   \item Documentation for local-debbugs configuration file (behaves
 468     like bts select)
 469   \end{itemize}
 470 \end{frame}
 471
 472 \begin{frame}{Getting started on these tasks}
 473   \begin{itemize}
 474   \item Upstream branches: \url{https://bugs.debian.org/debbugs-source/}
 475     \begin{itemize}
 476     \item master (upstream debbugs): git clone \url{https://bugs.debian.org/debbugs-source/debbugs.git}
 477     \item debian (debian branch): git clone -b debian \url{https://bugs.debian.org/debbugs-source/debbugs.git}
 478     \item Checked out branches are also available at
 479       \url{https://bugs.debian.org/debbugs-source/master} and
 480       \url{https://bugs.debian.org/debbugs-source/debian}
 481     \end{itemize}
 482   \item My branches: \url{https://git.donarmstrong.com/debbugs.git}
 483   \item Mailing list debian-debbugs@lists.debian.org
 484   \item IRC \#debbugs or \#debian-bugs on irc.debian.org; I'm dondelelcaro
 485   \end{itemize}
 486 \end{frame}
 487
 488 \begin{frame}[fragile]{Using \texttt{local-debbugs} to work on these tasks}
 489 \footnotesize
 490 \begin{minted}{sh}
 491 git clone \
 492  https://bugs.debian.org/debbugs-source/debbugs.git
 493 cd debbugs
 494 # get some bugs
 495 ./bin/local-debbugs --mirror
 496 # start a web daemon
 497 ./bin/local-debbugs --daemon
 498 # show some of my bugs (use your own search here)
 499 ./bin/local-debbugs --search bugs.debian.org
 500 # stop the daemon
 501 ./bin/local-debbugs --stop
 502 # hack and repeat
 503 ./bin/local-debbugs --daemon
 504 ./bin/local-debbugs --show 614351
 505 \end{minted}
 506 \end{frame}
 507
 508 \begin{frame}{The Debbugs Team}
 509   \begin{itemize}
 510   \item Current team
 511     \begin{itemize}
 512     \item Don Armstrong
 513     \item Blars Blarson
 514     \item Colin Watson
 515     \end{itemize}
 516   \item Emeritus Developers
 517     \begin{itemize}
 518     \item Steiner Gunderson
 519     \item Adam Heath
 520     \item Josip Rodin
 521     \item Anthony Towns
 522     \end{itemize}
 523   \item You!
 524   \end{itemize}
 525 \end{frame}
 526
 527 \begin{frame}{Questions?}
 528 \begin{center}
 529 \includegraphics[height=0.8\textheight,keepaspectratio]{images/relevant_xkcd}
 530 \end{center}
 531 \end{frame}
 532
 533 \end{document}
 534
 535