Summary of previous episodes

In another document (HTML, reST) you saw how to install and configure some image and video-related software on our example Debian testing workstation/desktop box. Now it's time to start preparing textual documents and performing other "office automation" tasks.

Default paper size

Set A4 as the default paper size:

# cat /etc/papersize
a4

Document viewers

Install a PostScript and PDF viewer:

# aptitude install gv

Install a PDF viewer (with plugins for other document formats):

# aptitude install zathura
# aptitude install zathura-ps zathura-djvu zathura-cb

configure it for your regular user:

$ cat ~/.config/zathura/zathurarc
set guioptions ""
set window-height 780
set window-width 600
set adjust-open "best-fit"
set advance-pages-per-row true
set render-loading false
set scroll-full-overlap 0.10
set scroll-page-aware true
set window-title-page true
set zoom-max 1600
set zoom-min 1

and make it the default PostScript and PDF viewer for your regular user:

$ xdg-mime default org.pwmt.zathura.desktop \
   application/pdf application/ps application/postscript

You may also install another PDF viewer (with plugins):

# aptitude install qpdfview

and configure it for your regular user:

$ qpdfview

Select Settings... from the Edit menu. In the "Behavior" tab, uncheck "Open URL", check "Auto-refresh", uncheck "Track recently used", "Keep recently closed", "Restore tabs", "Restore bookmarks", "Restore per-file settings"; choose "5 min" Save database interval; uncheck "Synchronize presentation"; choose "Default" Presentation screen; uncheck "Synchronize outline view"; choose "1.10" Zoom factor, "5000 ms" Highlight duration, "#ffff00" Highlight color, "#ffff00" Annotation color and leave the Source editor field blank. In the "Graphics" tab, "General" subtab, check "Use tiling"; uncheck "Keep obsolete pixmaps"; check "Use device pixel ratio"; uncheck "Trim margins"; check "Decorate pages", "Decorate links", and "Decorate form fields"; choose "#808080" Background color, "#ffffff" Paper color, "#000000" Presentation background color, "2" Pages per row, "5.00 px" Page spacing, "3.00 px" Thumbnail spacing, "150.00 px" Thumbnail size, "32 MB" Cache size; check "Prefetch" and choose "2" Prefetch distance. In the "PDF" subtab, check "Antialiasing", "Text antialiasing"; choose "None" Text hinting; uncheck "Overprint preview"; choose "None" Thin line mode, "Splash" Backend. In the "PS" subtab, choose "4" Graphics antialias bits and "2" Text antialias bits. In the "Interface" tab, choose "Top" Tab position, "As needed" Tab visibility; uncheck "Spread tabs"; check "New tab next to current tab"; choose "10" Recently used count, "5" Recently closed count; uncheck "Toggle tool and menu bars with fullscreen"; choose "openInNewTab,refresh,saveCopy,print" File tool bar, "firstPage,previousPage,currentPage,nextPage,lastPage,search,separator,copyToClipboardMode,addAnnotationMode" Edit tool bar, "zoomIn,scaleFactor,zoomOut,separator,continuousMode,twoPagesMode,separator,rotateLeft,rotateRight,separator,fullscreen,presentation" View tool bar; check "Use page label", "Document title as tab title", "Current page in window title"; uncheck "Instance name in window title"; check "Highlight current thumbnail", "Limite thumbnails to results"; uncheck "Annotation overlay"; check "Form field overlay". In the "Shortcuts" tab, leave the default key sequences untouched. In the "Modifiers" tab, choose "Ctrl" Zoom, "Shift and Alt" Rotate, "Alt" Scroll, "Shift" Copy to clipboard, and "Shift and Ctrl" Add annotation.

Install some very useful command-line tools:

# aptitude install poppler-utils

Install a PDF viewer which is especially useful for presentations:

# aptitude install pdf-presenter-console

This viewer (pdfpc) is also somewhat capable of playing back videos embedded in the pages of a PDF document. This capability is enhanced by installing some additional packages (if they are not already present):

# aptitude install gstreamer1.0-plugins-bad gstreamer1.0-gtk3

For video playback debug purposes, you may also want to install the following packages:

# aptitude install gstreamer1.0-tools gstreamer1.0-plugins-base-apps

A useful tool for searching strings in PDF files is provided by the following package:

# aptitude install pdfgrep

A useful program for comparing PDF files:

# aptitude install diffpdf

Another tool that may be useful while doing (or attending!) presentations is included in the following package:

# aptitude install sm

Install an e-book reader:

# aptitude install fbreader

and configure it for your regular user:

$ mkdir ~/FBooks ~/Books
$ fbreader

Click on the Show Preferences Dialog button and change the options as you like (I am personally fine with the default values).

Typesetting systems

You also may need to create documents...

# aptitude install texlive-latex-extra

# aptitude install texlive-lang-english texlive-lang-italian \
  texlive-lang-german \
  texlive-lang-european texlive-lang-greek texlive-lang-cyrillic

# aptitude install texlive-bibtex-extra texlive-fonts-extra \
  texlive-formats-extra texlive-plain-generic

# aptitude install texlive-games texlive-music texlive-publishers \
  texlive-science

# aptitude install cm-super

$ aptitude search texlive-binaries
i A texlive-binaries                - Binaries for TeX Live

# aptitude install biber

$ aptitude search texlive-latex-recommended
i A texlive-latex-recommended       - TeX Live: LaTeX recommended packages
i A texlive-latex-recommended-doc   - TeX Live: Documentation files for texlive-

# aptitude install python3-docutils

# aptitude install pandoc

# aptitude install lilypond

Document manipulation programs

Install a PDF manipulator:

# aptitude install qpdf

Then, install a converter for a horrid proprietary textual document format:

# aptitude install antiword

Office automation suite

Install a well-known office automation package:

# aptitude install libreoffice libreoffice-sdbc-firebird_ libsane_

Then, install some language packages:

# aptitude install libreoffice-l10n-it libreoffice-l10n-de \
  hyphen-en-us mythes-en-us hunspell-en-us hunspell-en-gb \
  hyphen-it mythes-it hunspell-it \
  hyphen-de mythes-de hunspell-de-de hunspell-de-at hunspell-de-ch

Also, install a lighter spreadsheet tool:

# aptitude --without-recommends install gnumeric

Web publishing

You may need to prepare documents to be published on the web. First of all, install an (X)HTML syntax checker and reformatter:

# aptitude install tidy

and configure it for your regular user:

$ cat ~/.tidyrc
decorate-inferred-ul: no
doctype: auto
drop-empty-paras: yes
drop-proprietary-attributes: yes
enclose-text: yes
hide-comments: no
logical-emphasis: yes
lower-literals: yes
merge-divs: no
merge-spans: no
numeric-entities: no
output-xhtml: yes
add-xml-decl: yes
quote-ampersand: yes
quote-marks: yes
quote-nbsp: yes
show-body-only: auto

accessibility-check: 0

indent: auto
indent-attributes: no
indent-spaces: 2
markup: yes
wrap: 72
wrap-attributes: no
vertical-space: yes

input-encoding: utf8
output-encoding: utf8

quiet: no
write-back: no

You may also want to install the following static web photo gallery generator:

# aptitude install lazygal

Then, install a command-line WebDAV client:

# aptitude install cadaver

and a package to mount WebDAV server directories as if they were filesystems:

# aptitude install davfs2

You'll be asked whether you want to allow unprivileged users to mount WebDAV resources: you may answer "Yes". Add the users who must be allowed to mount WebDAV resources to the davfs2 group (substitute $REGULARUSER with each appropriate username):

# adduser $REGULARUSER davfs2

Then create a mount point for each WebDAV resource (substitute $SITE with each appropriate site short name):

# mkdir -p /media/webdav/$SITE

and add corresponding entries to /etc/fstab:

# grep davfs /etc/fstab
https://mywebsite.example.org/dav/myuser/html-site/ /media/webdav/$SITE davfs user,noauto,noexec  0  0

Copy the following website update script for the regular user who maintains one website:

$ mkdir -p ~/bin
$ cat ~/bin/siteupdate
#!/bin/sh

# SiteUpdate - simple static website update script using rsync and davfs2
  VERSION="0.4"
#
# Copyright (c) 2017-2018 Francesco Poli <invernomuto@paranoici.org>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


# define configuration file
CONFFILE="${HOME}/.config/siteupdate.ini"

# define bit bucket
DEVNULL="/dev/null"

# define commands
CONFGET="/usr/bin/confget"
MOUNT="/bin/mount"
UMOUNT="/bin/umount"
MDAVFS="/usr/sbin/mount.davfs"
UMDAVFS="/usr/sbin/umount.davfs"
VIEW="/usr/bin/view"
RSYNC="/usr/bin/rsync"

ALLCOMMANDS="$CONFGET $MOUNT $UMOUNT $MDAVFS $UMDAVFS $VIEW $RSYNC"


usage()
{
    NAME=`basename $0`
    printf 'usage: %s SITENAME\n' "$NAME" 1>&2
}


printf 'SiteUpdate version %s\n\n' "$VERSION"

for COMMAND in $ALLCOMMANDS
do
    if test ! -x $COMMAND
    then
        printf '%s is not present or not executable\n' "$COMMAND" 1>&2
        exit 1
    fi
done

if test ! -r $CONFFILE
then
    printf '%s is not present or not readable\n' "$CONFFILE" 1>&2
    exit 2
fi

SITE=$1
if test "x$SITE" = "x"
then
    printf 'missing argument\n' 1>&2
    usage
    exit 3
fi

# get configuration for the site
eval `$CONFGET -f "$CONFFILE" -s "$SITE" -S -l`

if test "x$MountPoint" = "x"
then
    printf 'no MountPoint found for site %s\n' "$SITE" 1>&2
    exit 4
fi
if test "x$LocalDir" = "x"
then
    printf 'no LocalDir found for site %s\n' "$SITE" 1>&2
    exit 5
fi

if test "x$LocalPathInsideHome" = "xtrue"
then
    LocalDir="${HOME}/$LocalDir"
fi

$MOUNT $MountPoint/
FSPROPS=`$MOUNT | grep $MountPoint`
if printf '%s' "$FSPROPS" | grep rw > $DEVNULL
then
    printf 'Successfully mounted remote WebDAV resource\n'
    printf 'WebDAV filesystem properties:\n%s\n' "$FSPROPS"
else
    printf 'Failed to mount remote WebDAV resource\n' 1>&2
    printf 'WebDAV filesystem properties:\n%s\n' "$FSPROPS" 1>&2
    exit 6
fi

ANS="r"
while test "x$ANS" = "xr"
do
    diff -ruN $MountPoint/ $LocalDir/ | $VIEW -n -
    $RSYNC -rctOLv --delete --exclude="lost+found" \
           $LocalDir/ $MountPoint/ --dry-run

    printf '\nContent of %s\n' "$MountPoint/lost+found/"
    ls -altrF $MountPoint/lost+found/
    printf '\n'

    read -p "Do you want to update the website? [y/n/r] " ANS
    if test "x$ANS" = "xy"
    then
        $RSYNC -rctOLv --delete --exclude="lost+found" \
               $LocalDir/ $MountPoint/
    fi
done

printf '\n'
if $UMOUNT $MountPoint/
then
    printf 'Successfully unmounted remote WebDAV resource\n'
else
    printf 'Failed to unmount remote WebDAV resource\n' 1>&2
    exit 7
fi

For each website that the regular user maintains, add the following stanza to the configuration file ~/.config/siteupdate.ini:

$ cat ~/.config/siteupdate.ini
[$SITENAME]
MountPoint=/media/webdav/$SITE
LocalDir=my/website/localroot
LocalPathInsideHome=true

where $SITENAME should be substituted by an appropriate identifier for the website, $SITE by the above described short name for the site, and my/website/localroot by the path for the local master copy of the website. When the regular user wants to update the website, he/she should modify the local master copy first, and then issue the following command:

$ siteupdate $SITENAME

If the website update fails with rsync getting input/output errors when trying to rename temporary hidden files to their final destinations, the issue may be due to the WebDAV server incorrectly claiming to support locks, but actually not supporting them. You may work around this issue by disabling the use of locks:

$ mkdir -p ~/.davfs2
$ echo 'use_locks 0' > ~/.davfs2/davfs2.conf

Conclusions

Now that you're ready to write all sorts of textual documents, you may want to install some scientific packages. More details in a separate document (HTML, reST).