debbugs.Rnw

   1
   2 \usepackage{fontspec}
   3 \setmainfont{FreeSerif}
   4 \setsansfont{FreeSans}
   5 \setmonofont{FreeMono}
   6 \usepackage{url}
   7 \usepackage{fancyhdr}
   8 \usepackage{graphicx}
   9 \usepackage[bf]{caption}
  10 \usepackage{rotating}
  11 \usepackage{wrapfig}
  12 \usepackage{fancybox}
  13 \usepackage{booktabs}
  14 \usepackage{minted}
  15 \usepackage{tcolorbox}
  16 \usepackage{etoolbox}
  17 \BeforeBeginEnvironment{minted}{\begin{tcolorbox}}%
  18 \AfterEndEnvironment{minted}{\end{tcolorbox}}%
  19 % \usepackage{multirow}
  20 \usepackage{acronym}
  21 \usepackage{qrcode}
  22 \usepackage[backend=biber,natbib=true,hyperref=true,style=nature]{biblatex}
  23 \addbibresource{references.bib}
  24 % \usepackage[nomargin,inline,draft]{fixme}
  25 % \newcommand{\DLA}[1]{\textcolor{red}{\fxnote{DLA: #1}}}
  26 % \usepackage[hyperfigures,bookmarks,colorlinks,citecolor=black,filecolor=black,linkcolor=black,urlcolor=black]{hyperref}
  27 \usepackage{texshade}
  28 \usepackage{tikz}
  29 \usepackage{nameref}
  30 \usepackage{zref-xr,zref-user}
  31 \renewcommand*{\bibfont}{\tiny}
  32 \usepackage[absolute,overlay]{textpos}
  33
  34 \mode<presentation>
  35 {
  36   \usetheme{Montpellier}
  37   %\useoutertheme[hideallsubsections]{debiansidebar}
  38 %  \setbeamercovered{transparent}
  39 }
  40
  41 \setbeamertemplate{navigation symbols}{}%remove navigation symbols
  42
  43 \usepackage[nomargin,inline,draft]{fixme}
  44 \usepackage{listings}
  45
  46
  47 \logo{\begin{tikzpicture}% Pale figure
  48     {\node[opacity=0.3] {\includegraphics[width=2cm,keepaspectratio]{figures/openlogo-crop.pdf}};}%
  49     \end{tikzpicture}}
  50 \author{Don Armstrong}
  51 \title{Debbugs}
  52 \subtitle{22 Years of Bugs}
  53 \date{August 10th, 2017}
  54 \titlegraphic{\includegraphics[height=0.2\textheight,keepaspectratio]{figures/openlogo-crop.pdf}}
  55 \subject{BTS}
  56
  57 % State of the BTS: new features, changes and tips
  58 %
  59 % The bug tracking system is where all bugs that affect Debian are
  60 % filed. New features, including the affects, summary, and local debbugs
  61 % mirror will be presented and demonstrated. Some of the underlying
  62 % architectural changes to the codebase in debbugs to make it more
  63 % maintainable and deployable are also outlined. Finally, a set of tips
  64 % and tricks that can be used to make the BTS easier to use are
  65 % presented.
  66 %
  67 %  - New Features
  68 %    - affects
  69 %    - summary
  70 %    - local debbugs mirror for offline work
  71 %    - New SOAP
  72 %      - full text search
  73 %      - filtering bugs
  74 %    - multi-distribution/arch status
  75 %    - control changes at submit@ time
  76 %  - Code Architecture Changes
  77 %    - Modularization
  78 %    - Control abstraction
  79 %    - release to experimental
  80
  81
  82 <<load.libraries,echo=FALSE,results="hide",error=FALSE,message=FALSE,cache=FALSE>>=
  83 library(lattice)
  84 library(xtable)
  85 library(ggplot2)
  86 library("scales")
  87 library(reshape2)
  88 library("data.table")
  89 opts_chunk$set(dev="cairo_pdf",out.width="\\textwidth",out.height="0.8\\textheight",out.extra="keepaspectratio",fig.width=6/1.2,fig.height=4/1.2)
  90 opts_chunk$set(cache=TRUE, autodep=TRUE)
  91 options(device = function(file, width = 6/1.2, height = 4/1.2, ...) {
  92   cairo_pdf(tempfile(), width = width, height = height, ...)
  93 })
  94
  95 @
  96
  97 <<scientific_format,echo=FALSE>>=
  98 scientific_10 <- function(x) {
  99   parse(text=gsub("e", " %*% 10^", scientific_format()(x)))
 100 }
 101 @
 102
 103 \begin{document}
 104
 105 %\setbeamercolor{frametitle}[bg=-red!90!green!10,fg=black]
 106
 107 \frame[plain]{\titlepage
 108   Code and slides are here:
 109   \qrcode[padding]{https://dla2.us/p/debbugs2017}
 110   \url{https://dla2.us/p/debbugs2017}
 111
 112 }
 113
 114 % \begin{frame}{Debbugs}
 115 %   \tableofcontents[subsectionstyle=hide]
 116 % \end{frame}
 117
 118 \section{Introduction to Debbugs}
 119
 120 \subsection{Introduction}
 121 \begin{frame}{Goals of this talk}
 122   \begin{columns}
 123     \column{0.5\textwidth}
 124     \begin{itemize}
 125     \item Bug Statistics
 126     \item New features
 127     \item Planned features
 128     \item Places you can help
 129     \end{itemize}
 130     \column{0.5\textwidth}
 131     \includegraphics[width=\textwidth,keepaspectratio]{images/rc_buggy}
 132   \end{columns}
 133 \end{frame}
 134 \begin{frame}{Goals of the BTS}
 135   \begin{columns}
 136   \column{0.4\textwidth}
 137     \includegraphics[width=\textwidth,keepaspectratio]{images/not_a_bug}
 138   \column{0.6\textwidth}
 139   \begin{itemize}
 140   \item Reporting of \only<1>{Features}\only<2>{Bugs}
 141   \item Evolution of \only<1>{Features}\only<2>{Bugs}
 142   \item Fixing of \only<1>{Features}\only<2>{Bugs}
 143   \item Reducing impact of \only<1>{Features}\only<2>{Bugs}
 144   \end{itemize}
 145 \end{columns}
 146 \end{frame}
 147
 148 \section{Bugs in Debian}
 149 \subsection{Bug Reporting Rate}
 150 \begin{frame}{Bugs from the beginning of time}
 151   \begin{center}
 152 <<bug.growth,fig=TRUE,echo=FALSE,cache.extra=file.info("data/sorted_bug_growth_for_r_every_500.txt")[,"mtime"]>>=
 153 bug.growth <- fread("data/sorted_bug_growth_for_r_every_500.txt")
 154 colnames(bug.growth) <- c("time","bugs")
 155 bug.growth <- bug.growth[pmax(bugs) <= as.numeric(bugs),]
 156 bug.growth <- bug.growth[order(time),]
 157 while (bug.growth[,any(c(0,diff(bugs)) < 0)]) {
 158        bug.growth <-
 159            bug.growth[c(0,diff(bugs))>=0,]
 160 }
 161 bug.growth[,date:=
 162                 as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+
 163                            as.numeric(bug.growth$time))]
 164 bug.growth[,`bugs per day`:=c(0,diff(bugs)/
 165                                 as.double(diff(date),"days"))
 166            ]
 167 print(ggplot(bug.growth,#[date > as.POSIXct(ISOdatetime(2005,1,1,0,0,0)),],
 168              aes(x=date,y=bugs))+
 169       xlab("Time")+ylab("Bugs filed in Debian")+
 170       scale_y_continuous(labels = scientific_10)+
 171       geom_point())
 172 @
 173 \end{center}
 174 \end{frame}
 175
 176 \begin{frame}[fragile]{Bug Growth Rate}
 177 <<bug_growth_rate,echo=FALSE>>=
 178 print(ggplot(bug.growth[date > as.POSIXct(ISOdatetime(2014,1,1,0,0,0)),],
 179              aes(x=date,y=`bugs per day`))+
 180       xlab("Time")+ylab("Bugs filed per day")
 181       + scale_y_log10(breaks=c(60,100,200,400,800))
 182       + geom_line()+stat_smooth(method="lm")
 183       + geom_label(data=data.table(date=as.POSIXct(ISOdatetime(2015,04,25,0,0,0)),"bugs per day"=400),label="Jessie",color="red")
 184       + geom_label(data=data.table(date=as.POSIXct(ISOdatetime(2017,06,17,0,0,0)),"bugs per day"=400),label="Stretch",color="purple")
 185       )
 186 @
 187 \end{frame}
 188
 189 \begin{frame}[fragile]{Is the bug filing rate decreasing?}
 190 \tiny
 191 <<bug_growth_rate_over_time>>=
 192 summary(lm(log(`bugs per day`)~date,
 193            bug.growth[date > "2014-01-01 PST",]))
 194 @
 195 \normalsize
 196 Not significantly decreasing.
 197 \end{frame}
 198
 199 \begin{frame}{My entries into Christian's game}
 200   \begin{columns}
 201     \column{0.5\textwidth}
 202   \begin{center}
 203 <<bugs.filed,fig=TRUE,echo=FALSE,warning=FALSE,fig.width=3,fig.height=3>>=
 204 print(ggplot(bug.growth[date > as.POSIXct(ISOdatetime(2015,1,1,0,0,0)),],
 205              aes(x=date,y=bugs))+
 206       xlab("Time")+ylab("Bugs filed in Debian")+
 207       scale_y_continuous(labels = scientific_10)+
 208       geom_point()+stat_smooth(method="lm"))
 209 bugs.filed.per.day <-
 210   lm(bugs~date,bug.growth)$coeff[2]*3600*24
 211 temp.lm <- lm(date~bugs,bug.growth[date > as.POSIXct(ISOdatetime(2015,1,1,0,0,0)),])
 212 bug.880000 <-
 213     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=880000,date=NA))))
 214 bug.900000 <-
 215     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=900000,date=NA))))
 216 bug.1000000 <-
 217     as.POSIXct(ISOdatetime(1970,1,1,0,0,0)+as.numeric(predict(temp.lm,data.frame(bugs=1000000,date=NA))))
 218 @
 219 \end{center}
 220 \column{0.5\textwidth}
 221 Roughly \Sexpr{format(bugs.filed.per.day,digits=1)} bugs are filed per
 222 day. The 880000th bug will be filed at \Sexpr{bug.880000}, the
 223 900000th bug will be filed at \Sexpr{bug.900000}, and bug one million will be filled
 224 \Sexpr{bug.1000000}.
 225 \end{columns}
 226 \end{frame}
 227
 228
 229 \subsection{Bug Fixing Rate}
 230 \begin{frame}
 231   \begin{center}
 232 <<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"]>>=
 233 bug.closed.series <- fread(file="data/bug_closed_time_series.txt")
 234 colnames(bug.closed.series) <- c("archived.bugs","year.week")
 235 bug.closed.series[,week:=
 236     gsub("(\\d+)-(\\d+)","\\2",year.week)]
 237 bug.closed.series[,year:=
 238     gsub("(\\d+)-(\\d+)","\\1",year.week)]
 239 bug.closed.series[,doy:= as.numeric(week)*7]
 240 bug.closed.series[,year.doy:=
 241                        paste(sep="-",year,doy)]
 242 bug.closed.series[,date:=
 243                        as.POSIXct(strptime(year.doy,
 244                                            format="%Y-%j"))]
 245
 246 # bug.closed.ts <- ts(bug.closed.series[,1],start=1,frequency=7)
 247
 248 print(ggplot(bug.closed.series[date > as.POSIXct(ISOdatetime(2008,1,1,0,0,0)),],
 249              aes(x=date,y=archived.bugs/7))+geom_line()+stat_smooth(method="lm")+
 250       ylab("Bugs archived Per Day")+xlab("Time"))
 251 bugs.closed.per.day <-
 252     bug.closed.series[,sum(archived.bugs)]/
 253     as.numeric(bug.closed.series[nrow(bug.closed.series),date]-
 254                bug.closed.series[1,date])
 255 @
 256   \end{center}
 257 Roughly \Sexpr{format(bugs.closed.per.day,digits=1)} bugs are closed per day.
 258 \end{frame}
 259
 260 \subsection{RC Bugs}
 261 \begin{frame}{RC Bugs in the Past Year}
 262   \begin{center}
 263 <<rc.bugs,fig=TRUE,echo=FALSE,warning=FALSE,cache.extra=file.info("data/rc_bugs.txt")[,"mtime"]>>=
 264 rc.bugs <-
 265     data.table(read.table(file="data/rc_bugs.txt",
 266                           header=TRUE,fill=TRUE))
 267 rc.bugs[,date:=
 268              as.POSIXct(strptime(date,
 269                                  format="%Y%m%d%H%M"))]
 270 rc.bugs[,unknown:=NULL]
 271 rc.bugs[,unknown.1:=NULL]
 272 for (i in 1:10) {
 273     rc.bugs <- rc.bugs[c(0,diff(total)) > -1000,]
 274 }
 275 rc.bugs.long <-
 276     data.table(melt(rc.bugs,id="date"))
 277 print(ggplot(rc.bugs.long[date >
 278                           as.POSIXct(ISOdatetime(2016,08,1,0,0,0)),]
 279             ,aes(x=date,y=value,color=variable))+
 280       geom_line()+
 281       ylab("# of Release Critical Bugs")+xlab("Time")+
 282       theme(legend.position="top")+
 283       scale_color_discrete("Measure"))
 284 @
 285 \end{center}
 286 \end{frame}
 287
 288 \section{Debbugs Structure and Infrastructure}
 289
 290 \subsection{BTS System Diagram}
 291 \begin{frame}{BTS system Diagram}
 292   \begin{center}
 293     \includegraphics[width=\textwidth,height=\textheight,keepaspectratio]{figures/bug_global_layout}
 294   \end{center}
 295 \end{frame}
 296
 297 \subsection{Debbugs Box Diagram}
 298 \begin{frame}{Debbugs Box Diagram}
 299   \begin{center}
 300     \input{debbugs_layout}
 301   \end{center}
 302 \end{frame}
 303
 304 \section{Database Ho!}
 305
 306 \subsection{Overall Database Design}
 307
 308 \begin{frame}{Overall Database Design}
 309   \begin{center}
 310     \input{debbugs_layout_db}
 311   \end{center}
 312 \end{frame}
 313
 314 \subsection{Perl Database Infrastucture}
 315 \begin{frame}{Perl Database Infrastructure}
 316   \begin{itemize}
 317   \item DBIx::Class
 318   \item DBIx::Class::Schema::Loader -- SQL schema to DBIx::Class
 319   \item DBIx::Class::DeploymentHandler -- Upgrades of Schema
 320   \item Debbugs::DB -- Debbugs SQL Module
 321   \end{itemize}
 322 \end{frame}
 323
 324
 325 \subsection{SQL Design}
 326 \begin{frame}{SQL Schema}
 327   \includegraphics[width=\textwidth,keepaspectratio]{figures/schema.png}
 328   \begin{itemize}
 329   \item Current Debbugs SQL Schema
 330   \end{itemize}
 331 \end{frame}
 332
 333 \subsubsection{dak SQL Design}
 334 \begin{frame}{dak SQL Schema}
 335   \includegraphics[width=\textwidth,keepaspectratio]{figures/dak_schema.png}
 336   \begin{itemize}
 337   \item Inspiration taken from dak SQL Schema where appropriate
 338   \end{itemize}
 339 \end{frame}
 340
 341 \subsection{SQL Loading}
 342 \begin{frame}[fragile]{SQL Loading}
 343   % SQL loading
 344   \begin{itemize}
 345   \item Load bugs
 346 \begin{minted}{sh}
 347 debbugs-loadsql bugs;
 348 debbugs-loadsql bugs archive;
 349 \end{minted}
 350   \item Load Versioning information
 351 \begin{minted}{sh}
 352 debbugs-loadsql versions;
 353 debbugs-loadsql debinfo;
 354 \end{minted}
 355   \end{itemize}
 356 \end{frame}
 357
 358 \subsection{SQL Working}
 359 \begin{frame}[fragile]{SQL Working}
 360   % example SQL query
 361 \begin{lstlisting}[language=SQL]
 362 SELECT count(*) FROM bug
 363 WHERE last_modified > '2014-07-01'
 364 AND done IS NOT NULL
 365 AND owner IS NOT NULL;
 366 \end{lstlisting}
 367 \begin{visibleenv}<2>
 368 \begin{lstlisting}
 369  count
 370 -------
 371    521
 372 \end{lstlisting}
 373 \end{visibleenv}
 374 \end{frame}
 375
 376 \subsection{Work still needed for SQL}
 377 \begin{frame}{Work Still needed for SQL}
 378 \begin{itemize}
 379 \item Logfile loading (for full text searching)
 380 \item Status Caching (for faster page loading)
 381 \item Testing
 382 \item Deployment
 383 \end{itemize}
 384 \end{frame}
 385
 386 \section{New(ish) Features}
 387
 388 \subsection{New Changes}
 389 \begin{frame}{New Changes}
 390   \begin{columns}
 391     \column{0.5\textwidth}
 392     \begin{itemize}
 393   \item mailto links (demo)
 394   \item forcemerge does the right thing
 395   \item control at submit time
 396   \end{itemize}
 397     \column{0.5\textwidth}
 398     \includegraphics[width=\textwidth,keepaspectratio]{images/telegraph_bug}
 399 \end{columns}
 400 \end{frame}
 401
 402 \section{Future features}
 403
 404 \subsection{Status Caching}
 405 \begin{frame}{Status Caching}
 406   \begin{itemize}
 407   \item Cache status of bugs (presence/absence at all distributions)
 408   \item Speed up display of \url{http://bugs.debian.org/src:linux-2.6}
 409   \item Allows for reverse status lookup
 410     \begin{itemize}
 411     \item Enables finding bugs which are present in testing or unstable
 412     \end{itemize}
 413   \end{itemize}
 414 \end{frame}
 415
 416 \subsection{Statistics}
 417 \begin{frame}{Statistics}
 418   \begin{columns}
 419     \column{0.5\textwidth}
 420     \begin{itemize}
 421     \item Track status changes over time
 422     \item Bugs found/fixed/absent in stable/testing/unstable over time
 423     \item Bug submission times
 424     \item Bug closure times
 425     \item Bug mail rates
 426     \item Per package, severity, maintainer tracking of the above
 427     \end{itemize}
 428     \column{0.5\textwidth}
 429     \begin{center}
 430       \includegraphics[width=\textwidth,height=0.35\textheight,keepaspectratio]{images/bug}
 431     \end{center}
 432   \end{columns}
 433 \end{frame}
 434
 435
 436 \subsection{Additional Planned Features}
 437 \begin{frame}{More planned features}
 438   \begin{columns}
 439     \column{0.5\textwidth}
 440     \begin{itemize}
 441     \item HTTP based reporting system with e-mail roundtrip
 442     \item Release Debbugs again
 443     \item Bug mailing lists in Debbugs
 444       \begin{itemize}
 445       \item Avoid duplicate mail
 446       \item Opt in/out of mail
 447       \end{itemize}
 448     \item Merging of merged bug reports
 449     \item Threading in report
 450     \end{itemize}
 451     \column{0.5\textwidth}
 452     \includegraphics[width=\textwidth,keepaspectratio]{images/fixed_bug}
 453   \end{columns}
 454 \end{frame}
 455
 456 \begin{frame}{Even More planned features}
 457   \begin{columns}
 458     \column{0.5\textwidth}
 459     \begin{itemize}
 460     \item Usercategory duplication and replay
 461     \item Remote Attachments
 462     \item New Spool Storage Format
 463     \item Usertags visibility
 464     \item Smarter CGI options
 465     \end{itemize}
 466     \column{0.5\textwidth}
 467     \includegraphics[width=\textwidth,keepaspectratio]{images/fixed_bug}
 468   \end{columns}
 469 \end{frame}
 470
 471
 472
 473
 474
 475 \section{Places you can help}
 476
 477 \begin{frame}{7 tasks seeking contributors}
 478   \begin{itemize}
 479   \item Documentation of Usercategories
 480   \item Implementation of rss feeds for packages and bugs
 481   \item CGI options on pkgreport.cgi for usertags et al. \#536378)
 482   \item Documentation of multipe-package reassign and when it or
 483     affects should be used
 484   \item Mailto link with subject, references, etc. all filled in
 485   \item Documentation for local-debbugs configuration file (behaves
 486     like bts select)
 487   \end{itemize}
 488 \end{frame}
 489
 490 \begin{frame}{Getting started on these tasks}
 491   \begin{itemize}
 492   \item Upstream branches: \url{http://bugs.debian.org/debbugs-source/}
 493     \begin{itemize}
 494     \item master (upstream debbugs): git clone \url{http://bugs.debian.org/debbugs-source/debbugs.git}
 495     \item debian (debian branch): git clone -b debian \url{http://bugs.debian.org/debbugs-source/debbugs.git}
 496     \item Checked out branches are also available at
 497       \url{http://bugs.debian.org/debbugs-source/master} and
 498       \url{http://bugs.debian.org/debbugs-source/debian}
 499     \end{itemize}
 500   \item My branches: \url{http://git.donarmstrong.com/debbugs.git}
 501   \item Mailing list debian-debbugs@lists.debian.org
 502   \item IRC \#debbugs or \#debian-bugs on irc.debian.org; I'm dondelelcaro
 503   \end{itemize}
 504 \end{frame}
 505
 506 \begin{frame}{The Debbugs Team}
 507   \begin{itemize}
 508   \item Current team
 509     \begin{itemize}
 510     \item Don Armstrong
 511     \item Blars Blarson
 512     \item Colin Watson
 513     \end{itemize}
 514   \item Emeritus Developers
 515     \begin{itemize}
 516     \item Steiner Gunderson
 517     \item Adam Heath
 518     \item Josip Rodin
 519     \item Anthony Towns
 520     \end{itemize}
 521   \item You!
 522   \end{itemize}
 523 \end{frame}
 524
 525 \begin{frame}{Questions?}
 526   \includegraphics[width=0.8\textwidth,height=0.8\textheight,keepaspectratio]{images/don_at_burning_man.jpg}
 527 \end{frame}
 528
 529 \end{document}
 530
 531