* Fumitoshi UKAI <[EMAIL PROTECTED]> [2005-06-30 03:12]:
> How about "mgp -V -x m17n -x xft" ? It would be verbose so that
> some information would be reported on stderr. You can see
> which font files are used.
The log and .mgp files are attached.
--
Martin Michlmayr
http://www.cyrius.com/
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trying to open font "arial.ttf"
trying to open font "/usr/share/fonts/truetype/arial.ttf"
could not load font "arial.ttf", using other rendering engine
trying to open font "wadalab-gothic.ttf"
trying to open font "/usr/share/fonts/truetype/wadalab-gothic.ttf"
could not load font "wadalab-gothic.ttf", using other rendering engine
tfc_setsize: font index out of bound
ignored %opaque.
tfc_setsize: font index out of bound
trying to open font "standard.ttf"
trying to open font "/usr/share/fonts/truetype/standard.ttf"
could not load font "standard.ttf", using other rendering engine
trying to open font "kochi-mincho.ttf"
trying to open font "/usr/share/fonts/truetype/kochi-mincho.ttf"
could not load font "kochi-mincho.ttf", using other rendering engine
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
need font <times-medium-r:53:NULL>
fontname: seed=<times-medium-r> siz=<-1> reg=<iso8859-1>
result=<-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
fontstring <-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
checking 48 to 55
[13] <-adobe-times-medium-r-normal--0-0-0-0-p-0-iso8859-1>: scalable (1)
fontname: seed=<times-medium-r> siz=<53> reg=<iso8859-1>
result=<-*-times-medium-r-*-*-53-*-*-*-*-*-iso8859-1>
using truescalable <-*-times-medium-r-*-*-53-*-*-*-*-*-iso8859-1>
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
tfc_setsize: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
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no fontcount
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no fontcount
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tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
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no fontcount
tfc_setfont: font name not given, fail
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no fontcount
tfc_setfont: font name not given, fail
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no fontcount
tfc_setfont: font name not given, fail
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no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
tfc_setsize: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
need font <times-medium-r:26:NULL>
fontname: seed=<times-medium-r> siz=<-1> reg=<iso8859-1>
result=<-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
fontstring <-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
checking 24 to 27
[4] <-adobe-times-medium-r-normal--25-180-100-100-p-125-iso8859-1>: score 1
best
[11] <-adobe-times-medium-r-normal--24-240-75-75-p-124-iso8859-1>: score 1
[13] <-adobe-times-medium-r-normal--0-0-0-0-p-0-iso8859-1>: scalable (1)
[18] <-adobe-times-medium-r-normal--25-180-100-100-p-125-iso8859-1>: score 1
using best [4] <-adobe-times-medium-r-normal--25-180-100-100-p-125-iso8859-1>
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
tfc_setsize: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
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no fontcount
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no fontcount
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no fontcount
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no fontcount
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no fontcount
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no fontcount
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no fontcount
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no fontcount
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tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
tfc_setsize: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
need font <times-medium-r:34:NULL>
fontname: seed=<times-medium-r> siz=<-1> reg=<iso8859-1>
result=<-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
fontstring <-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
checking 31 to 35
[5] <-adobe-times-medium-r-normal--34-240-100-100-p-170-iso8859-1>: score 0
best
[13] <-adobe-times-medium-r-normal--0-0-0-0-p-0-iso8859-1>: scalable (1)
[19] <-adobe-times-medium-r-normal--34-240-100-100-p-170-iso8859-1>: score 0
using best [5] <-adobe-times-medium-r-normal--34-240-100-100-p-170-iso8859-1>
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
no fontcount
tfc_setfont: font name not given, fail
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no fontcount
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no fontcount
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no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
need font <times-medium-r:23:NULL>
fontname: seed=<times-medium-r> siz=<-1> reg=<iso8859-1>
result=<-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
fontstring <-*-times-medium-r-*-*-*-*-*-*-*-*-iso8859-1>
checking 21 to 24
[11] <-adobe-times-medium-r-normal--24-240-75-75-p-124-iso8859-1>: score 101
best
[13] <-adobe-times-medium-r-normal--0-0-0-0-p-0-iso8859-1>: scalable (1)
using best [11] <-adobe-times-medium-r-normal--24-240-75-75-p-124-iso8859-1>
no fontcount
tfc_setfont: font name not given, fail
tfc_alloc: font index out of bound
caching done
#!mgp
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%deffont "standard" tfont "standard.ttf", tmfont "kochi-mincho.ttf"
%deffont "thick" tfont "thick.ttf", tmfont "goth.ttf"
%deffont "typewriter" tfont "typewriter.ttf", tmfont "goth.ttf"
%%deffont "standard" xfont "comic sans ms-medium-r"
%%
%% Default settings per each line numbers.
%%
%default 1 leftfill, size 2, fore "yellow", back "black", font "thick"
%default 1 bgrad
%%default 1 leftfill, size 2, fore "yellow", back "lightblue"
%default 2 size 5.0, vgap 10, prefix " "
%default 3 bar "black" 5
%default 4 size 4.0, fore "white", vgap 30, prefix " ", font "standard"
%%
%% Default settings that are applied to TAB-indented lines.
%%
%tab 1 size 4, vgap 40, prefix " ", icon arc "spring green" 40
%tab 2 size 4, vgap 20, prefix " ", icon box "darkred" 40
%tab 3 size 3, vgap 20, prefix " ", icon delta3 "white" 40
%%
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
%nodefault
%size 7, font "standard", fore "red", vgap 20, back "lightblue", prefix " "
%size 7, fore "darkred"
%center
Quality Issues
%size 3.5
%size 7, fore "darkred"
%center
in Free Software projects
%size 4.5
%center
Martin Michlmayr <[EMAIL PROTECTED]>
%size 3.5
%center
University of Cambridge
%size 3.5
%center
This work has been funded in part by Intel.
%size 3, fore "darkred"
%center
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Objectives for today
What is quality?
What is quality assurance (QA)?
Free Software and QA
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Quality
Everyone knows, but ...
Hard to define
Hard to measure
Definitions of quality:
Fitness for purpose
Attributes of quality: efficiency, reliability, usability,
extendability, portability, reusability, maintainability
Different aspects:
User perception
Developer perception
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
What is Quality Assurance?
Traditional Quality Assurance (QA)
Does what it should do (meets the specification)
Does what others do as good or better as others (meets the "Industrial
Standard")
QA begins before the implementation!
You cannot "add" quality later
QA is not (just) testing
ISO defines QA as all "planned and systematic activities" (to ensure
quality)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Quality and Free Software/Open Source
Problems and challenges related to common characteristics of open source:
Distributed development
Done by volunteers
Naturally, different forms of the open source development model have different
problems.
Eric S. Raymond (1999): The Cathedral and the Bazaar
Linus' law
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Quality and Free Software/Open Source
Quality is often high
peer review (Cathedral and the Bazaar)
World domination
... but not always
Many small, unsuccessful projects
example: SourceForge has over 100,000 projects
Big projects have problems too
Contrast to QA as "planned and systematic activities"
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Interviews: identifying quality issues
Interviews with members of Free Software projects
3 main areas:
leadership: benevolent dictator, team
release cycle:
"release when it's ready", time based
fast vs slow, development vs user release
beta cycle, release candidates
company involvement
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Interviews: underlying topics
Processes and infrastructure
Communication
Bug tracking systems
Contributing to the project
Success
What is success?
Relation of success and quality?
Success: more volunteers
Contribute, Improve
More quality
Cathedral to bazaar
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Techniques employed
Infrastructure
Bug tracking (e.g. Bugzilla)
Version control (CVS, SVN, arch)
Automatic builds (e.g. tinderbox)
Processes
Joining
Release: freeze, feature freeze, string freeze
Branches
Peer review
Testing (checklists)
Documentation
Coding styles
Code commit
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Quality Issues
Ports
keeping different ports (hardware, operating systems) in sync
wider issue: feature creep
Configuration management
testing all possible combinations
(possible solution: keep it modular)
Users don't know how to report bugs
many duplicates
bad bug reports
problem: long documentation -> users won't read it
Automatic tests
are boring to write
people who write code shouldn't write tests
sometimes need large database
Security updates
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
Quality Issues
Attracting volunteers
to triage bugs
to code
to test
& ensure they are competent
Lack of documentation
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Lessons learned
Think about quality and QA
Debian: http://qa.debian.org/
KDE: http://quality.kde.org/
GNOME: http://developer.gnome.org/projects/bugsquad/
Have developer documentation
Have an automatic test suite
Use version control
legal
Think about quality
Find ways to measure quality
Find ways to improve quality
Find ways to automate quality
Document quality practices
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