Posted by Jim Morris
on Mon Sep 04 11:51:35 -0700 2006
If you Google around for information or even some documentation on
the ruby SVN bindings you will find plenty of comments that it simply
is not documented, so when I wanted to add an SVN status check to a UI
I was working on (a project browser window for Rails), I had to "Use
the source Luke". However given the bindings are actually mostly
automatically generated by SWIG, and the actual details are hidden in
a goo of swig generated c code, even that was a challenge.
Eventually I realized that the API was almost identical to the c level
subversion API, not surprisingly, and for the most part it works the
way you would expect. However I could not find any examples of the
client status call, so here it is for anyone else struggling with this
issue.
require "svn/core"
require "svn/client"
require "svn/wc"
require "svn/repos"
NONE = 1
UNVERSIONED = 2
NORMAL = 3
ADDED = 4
MISSING = 5
DELETED = 6
REPLACED = 7
MODIFIED = 8
MERGED = 9
CONFLICTED = 10
IGNORED = 11
OBSTRUCTED = 12
EXTERNAL = 13
INCOMPLETE = 14
UPDATED = 15
MODIFIED_NEWER = 16
NEWFILE = 17
$modes= {
NONE => "None",
UNVERSIONED => "unversioned",
NORMAL => "normal",
ADDED => "file added",
MISSING => "missing",
DELETED => "file removed",
REPLACED => "deleted and then re-added",
MODIFIED => "modified",
MERGED => "received repos mods",
CONFLICTED => "file modified and in conflict",
IGNORED => "ignored",
OBSTRUCTED => "unversioned resource is in the way of the versioned resource",
EXTERNAL => "unversioned path populated by an svn:external property",
INCOMPLETE => "directory doesn't contain a complete entries list",
UPDATED => "newer version in repository",
MODIFIED_NEWER => "modified and newer version in repository",
NEWFILE => "new file in repository",
nil => "Unknown status"
}
def compute_status(status)
return MODIFIED_NEWER if status.repos_text_status == MODIFIED && status.text_status != NORMAL
return NEWFILE if status.repos_text_status == ADDED && status.text_status == NONE
return status.text_status if status.text_status != NORMAL
return UPDATED if status.repos_text_status == MODIFIED
NORMAL
end
ctx = Svn::Client::Context.new()
rev = ctx.status("/home/user/project/myproject", "HEAD", true, true) do |path, status|
astat= compute_status(status)
puts "#{path}: #{status.text_status},#{status.repos_text_status} = #{$modes[astat]}"
unless status.entry.nil?
puts(".....name: #{status.entry.name}")
puts(".....url: #{status.entry.url}")
puts(".....repos: #{status.entry.repos }")
puts(".....revision: #{status.entry.revision}")
puts(".....kind: #{status.entry.kind}")
puts(".....schedule: #{status.entry.schedule}")
puts(".....deleted: #{status.entry.deleted}")
puts(".....absent: #{status.entry.absent}")
puts(".....incomplete: #{status.entry.incomplete}")
puts(".....cmt_date: #{status.entry.cmt_date}")
puts(".....cmt_rev: #{status.entry.cmt_rev}")
puts(".....cmt_author: #{status.entry.cmt_author}")
puts(".....prop_time: #{status.entry.prop_time}")
puts(".....text_time: #{status.entry.text_time}")
end
end
This is a sample, it shows how to setup the client context, call the
status call, and parse the results. I also added some sugar by
defining the numeric status codes and adding a hash to translate them
to english. I also compute an amalgamated status code from the local
status and status in the repository, to get the extra status codes I
added above.
The status parameter returned by the status() call turns out to be a
standard svn status structure, containing various fields, the most
interesting one as far as status is concerned are text_status and
repos_text_status fields which are numeric fields which specifies the
SVN status of the file locally and in the repository, I have created
in the example above a bunch of constants to define each of the
states, and a hash to turn them into english.
Note the compute_status() method which looks at both the local status
and repository status to see what the relative state of any file is
wrt the repository.
The other interesting field is the entry field, which contains bunch
of data as shown above, and in the structure definition below.
There are more parameters that can be passed to the status
call, but the last two I show should be set to true, as that allows
recursion into sub directories and shows all files, by default
recursion is true but all_files is false which only show files not
under svn control.
The developers have made some attempt to make this relatively easy to
use, you can forget about the apr pools and stuff, and the second
parameter is usually a structure that tells it the version or revision
to search for, this has been simplified so you can pass in a string
describing the revision ("HEAD", "TAIL", etc) or a number denoting the
revision number.
The status and entry structures have also had the types converted into
convenient ruby types, but for reference I show the c struct
definitions from the various svn header files...
Here is the full status structure from svn_wc.h
typedef struct svn_wc_status2_t
{
/** Can be @c NULL if not under version control. */
svn_wc_entry_t *entry;
/** The status of the entries text. */
enum svn_wc_status_kind text_status;
/** The status of the entries properties. */
enum svn_wc_status_kind prop_status;
/** a directory can be 'locked' if a working copy update was interrupted. */
svn_boolean_t locked;
/** a file or directory can be 'copied' if it's scheduled for
* addition-with-history (or part of a subtree that is scheduled as such.).
*/
svn_boolean_t copied;
/** a file or directory can be 'switched' if the switch command has been
* used.
*/
svn_boolean_t switched;
/** The entry's text status in the repository. */
enum svn_wc_status_kind repos_text_status;
/** The entry's property status in the repository. */
enum svn_wc_status_kind repos_prop_status;
/** The entry's lock in the repository, if any. */
svn_lock_t *repos_lock;
}
and the entry structure
typedef struct svn_wc_entry_t
{
/* IMPORTANT: If you extend this structure, check svn_wc_entry_dup() to see
if you need to extend that as well. */
/* General Attributes */
/** entry's name */
const char *name;
/** base revision */
svn_revnum_t revision;
/** url in repository */
const char *url;
/** canonical repository URL or NULL if not known */
const char *repos;
/** repository uuid */
const char *uuid;
/** node kind (file, dir, ...) */
svn_node_kind_t kind;
/* State information */
/** scheduling (add, delete, replace ...) */
svn_wc_schedule_t schedule;
/** in a copied state */
svn_boolean_t copied;
/** deleted, but parent rev lags behind */
svn_boolean_t deleted;
/** absent -- we know an entry of this name exists, but that's all
(usually this happens because of authz restrictions) */
svn_boolean_t absent;
/** for THIS_DIR entry, implies whole entries file is incomplete */
svn_boolean_t incomplete;
/** copyfrom location */
const char *copyfrom_url;
/** copyfrom revision */
svn_revnum_t copyfrom_rev;
/** old version of conflicted file */
const char *conflict_old;
/** new version of conflicted file */
const char *conflict_new;
/** working version of conflicted file */
const char *conflict_wrk;
/** property reject file */
const char *prejfile;
/** last up-to-date time for text contents (0 means no information available)
*/
apr_time_t text_time;
/** last up-to-date time for properties (0 means no information available) */
apr_time_t prop_time;
/** base64-encoded checksum for the untranslated text base file,
* can be @c NULL for backwards compatibility.
*/
const char *checksum;
/* "Entry props" */
/** last revision this was changed */
svn_revnum_t cmt_rev;
/** last date this was changed */
apr_time_t cmt_date;
/** last commit author of this item */
const char *cmt_author;
/** lock token or NULL if path not locked in this WC
* @since New in 1.2.
*/
const char *lock_token;
/** lock owner, or NULL if not locked in this WC
* @since New in 1.2.
*/
const char *lock_owner;
/** lock comment or NULL if not locked in this WC or no comment
* @since New in 1.2.
*/
const char *lock_comment;
/** Lock creation date or 0 if not locked in this WC
* @since New in 1.2.
*/
apr_time_t lock_creation_date;
/* IMPORTANT: If you extend this structure, check svn_wc_entry_dup() to see
if you need to extend that as well. */
} svn_wc_entry_t;
For the most part you can simply reference the fields in the structure
and get a relatively understandable result.
The status call is defined in ruby as this
def status(path, rev=nil, recurse=true, get_all=false,
update=true, no_ignore=false,
ignore_externals=false, &status_func)
The first parameter is the path on the local file system to get the
status of, the second is the revision to get, something like "HEAD",
or 2345 can be passed in, the next parameter is whether to recurse
into subdirectories, the next tells it to return the status of all
files if set to true, default of false and only returns "interesting
files" ie local mods and/or out-of-date or not versioned. Update is
set to true it will contact the repository to get more information wrt
to the version specified in the first parameter (which is ignored
otherwise). I couldn't find any documentation in the c stuff about
the no_ignore parameter, but the ignore_externals tells it to return
status on externals or not. See the header file svn_client.h and the
call svn_client_status2 for more documentation.
ruby svn
Posted in
Ruby,svn
|
Tags
ruby,subversion,svn,rubysvn
|
3 comments
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Posted by Jim Morris
on Sun Aug 27 20:29:43 -0700 2006
f-spot is a good photo importer and organizer, but it is a gnome
application. When I installed it on KUbuntu, which uses KDE, using
aptitude install f-spot it worked ok, except I got the following error
when I tried to send my photos to flickr.
GLib.GException: There is no default action associated with this location
After some Googling I found this solution...
> gconftool-2 --set --type=string /desktop/gnome/url-handlers/http/command '/opt/firefox/firefox %s'
my Firefox is in /opt/firefox, so you may have to change that path, or even point to a different browser.
Make sure gconftool-2 is installed (it was on mine after installing a bunch of gnome apps).
It sets the default browser, and after this I was able to upload to flickr.
Posted in
Linux
|
Tags
kubuntu,flickr,fspot
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Posted by Jim Morris
on Wed Aug 09 22:39:06 -0700 2006
I got a license for Komodo Pro,
(Komodo-Professional-3.5.3-262321-linux-libcpp5-x86) and started
trying to use it, I have the latest KUbuntu, with GTK installed so I
had no problems installing Komodo as far as libraries and requirements
were concerned, however running it had me stumped, I ran into
immediate problems (some of my own making I'll admit).
First I saw a stream of errors on the screen, they didn't seem fatal
but are annoying, for instance...
(Gecko:24458): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_width: assertion `pixbuf != NULL' failed
(Gecko:24458): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_height: assertion `pixbuf != NULL' failed
(Gecko:24458): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_rowstride: assertion `pixbuf != NULL' failed
(Gecko:24458): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
(Gecko:24458): Gdk-CRITICAL **: gdk_pixbuf_get_from_drawable: assertion `gdk_window_is_viewable (src)' failed
For a commercial product costing around $299 that seemed a little
unnecessary.
The first problem was my making I launched Komodo from the command
line in the installation directory, then deleted the installation
directory, which caused it to have hysterics about chdir etc, although
to be honest an xwindows IDE probably shouldn't care where it is
launched from, as it would normally be launched from a button or
desktop icon.
Tech support was very fast in responding to my email though, and they
didn't even know I had a pro license. They asked a bunch of questions,
which I answered, but seeing as the remaining problems were non-fatal
I wasn't too concerned about the response, which I haven't got yet,
but I would like to know if all those GTK errors are normal.
The more disturbing problem was when I tried to write a simple Ruby
script, I expected completion as you would see with Java and Eclipse, but
instead typing:
str= ""
str.
gave me an error:
error determining members: don't know how to make a suitable dumb_get_members for Ruby
This error was what I got at first, after going back and typing str.
again I got the expected list of possible completions, seems this
happens the first time every time, either it is slow figuring out what
to complete or it is very buggy. (Update see later, it is the former,
it is slow figuring out what type something is).
Time.
Did give me a list of completions most times. When it does decide to
offer a list of completions, it also shows the parameters for the
calls, like Eclipse/Java does, that's nice, I hope it is reliable
though.
OK got word back from tech support, apparently it can take "a couple
of seconds" for Komodo to catch up with typing, so my example of...
str= ""
str.
Would probably not work unless I waited a few seconds between the two
lines, I think this may be acceptable as it is unlikely to be an issue
in normal use. In practice it seems to be more than a couple of
seconds BTW.
The main reason for me trying Komodo was for the code completion,
without intelligent code completions I really don't see the use for an
IDE, I can use my trusty Epsilon editor from
Lugaru, with the ruby syntax highlighting and
formatting extensions
and my own contribution to the Epsilon library
snippets, much
like the great Textmate snippets (although not nearly as complete),
there are also various user contributed extensions for various source
code code control systems etc here.
Yes Epsilon is quite expensive for an editor, but I have been using it
for nearly 20 years, upgrading every few years or so, it is basically
Emacs with a c-like extension language (instead of lisp), it is very
solid, and runs on all the platforms I use (Mac OS/X, Windows and of
course Linux). It does not have code completion of course (although I think
I can write an extension ala Vim7 to do that, watch this space).
Maybe I should mention what I am looking for in an IDE for Ruby and
Rails...
I want:
- syntax highlighting
- auto indentation
- auto-correction (or at least error highlighting, or suggestions)
- snippets (or templates)
- code completion (showing the possible methods for a variable called
intellisense or intelligent code completion by some)
- word completion based on something in the source already, or
from a tags list or from a known-word list
- showing the parameters for a given method I am currently
typing
- full debugging (with breakpoints, watches, stepping and
variable examination)
- SCCM integration (subversion, CVS, perforce)
Basically everything I get when I use Eclipse and Java.
I get some of this with Epsilon, and Textmate but they are not IDEs so
do not have debugging or code completion, or error detection.
Back to Komodo...
It has Perforce, CVS and Subversion bindings built-in, and does show
the files status in the project view.
The auto-indent works nicely, unlike RadRails which I tried but just
didn't get along with as I kind of expect it to be as good as Java and
Eclipse, but my main complaint is it doesn't even auto-indent. (I think
intentionally).
The syntax highlighting in Komodo is OK but not great, I think that
can be tweaked, but I haven't looked that closely.
The debugging does seem to work well, you can set breakpoints, and
step over, into and watch variables, everything you would expect. This
may be worth the price of admission (YMMV).
It does show you highlighting when it detects errors as you type,
within the limitation of Ruby syntax.
The Snippets implementation is pathetic compared to Textmate or
Eclipse, you can't specify tab stops, you can't type the trigger word
for a snippet and have it expanded on TAB, you have to either bind it
to a key sequence, or double click the snippet name in the toolbox,
that is simply clunky, and pretty much unusable. There are *NO*
built-in snippets, you have to create them all yourself, so if you like
typing "for" then tab and have a for loop created forget it, unless you
create it yourself then you have to find the "for" snippet in the
toolbox and double click it. I also couldn't find any on the web, I
think for the price of this product they should supply most of the
expected snippets. The other thing I don't like is the snippets will
pop up a dialog box asking for input, instead of the usual way of
just highlighting the text and typing over it to replace it.
My initial impressions is the editor part is clunky, given the
excellent examples of Eclipse and Textmate, it simply doesn't compare
as far as modern editing conveniences such as snippets are concerned.
The debugging seems capable, and probably the best I have seen for
Ruby.
The code completion is slow and doesn't always work.
The source code control seems a little buggy in some places, although
only from a UI standpoint. (Pops up strange dialog boxes on updates
saying files need to be added, when they don't).
A serious bug is if the file changes on disk, (like if you do a
revert), you get a dialog popping up saying the file has changed on
disk, but you can't get it to go away, clicking OK just pops it up
again, ad infinitum, you need to kill the program to move on.
All in all I think this would be a nice IDE if it were free, and the
personal version may well be useful for some if you want decent
debugging, but I simply can't see a justification for $299 for the
pro-version. (At least not for this version). There is an alpha for
the next version that claims to support Rails development, if they
also fix the snippets and the code completion (which they have not in
the current alpha), then we may be getting close to value for the
money, but right now I think they have a long long way to go before
this product justifies the price tag, and comes close to competing
with the few other editors out there let alone IDEs.
Update
Tech support have been very responsive, and they came up with a macro
that inserts snippets almost the way I expect,
komodo.view.setFocus();
try {
komodo.editor.vCHomeExtend();
var snippet = komodo.interpolate('%s');
var tmpl = komodo.findPart("snippet", snippet, "container");
if(tmpl) {
Snippet_insert(tmpl);
} else {
var msg = "no snippet found named " + snippet;
StatusBar_AddMessage(msg,"debugger",5000,true);
}
} catch(e) {
alert(e);
}
Add this as a macro, bind it to a key (say ALT-=), and then add your
snippets to the same folder as the macro is in, name them
appropriately, and the type im the name hit ALT-= and the snippiet is
found and inserted, pretty neat.
Disclaimer: These are my personal opinions, I am not affiliated with
any editor or IDE manufacturers.
Posted in
Rails,Ruby
|
Tags
komodo,ide,ruby,rails,editors,epsilon
|
1 comments
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Posted by Jim Morris
on Mon Jul 03 13:07:40 -0700 2006
OK it was time I upgraded my main development workstation from a
highly modified Redhat 9 to something more up to date that actually
gets security updates and has a good package manager.
I have been using Ubuntu for my servers for some time, and like the
package management, but I am used to KDE now and don't really want to
switch to Gnome on my workstation. So I decided to try to upgrade to
KUbuntu.
Upgrading the actual Redhat 9 seemed a bad move, so I bought a new
400GB drive (the Seagate ST3400633A, as its quiet and Fry's had it in
sale for $118). The plan was to do a fresh install of KUbuntu onto that
then copy over the stuff I need. After about 2 years of installing
stuff and upgrading the kernel manually on the Redhat 9, this was
going to be quite a task.
First up Dual monitors.
Unlike Windows and Mac OSX this doesn't "just work". On my RH9 system,
I had the proprietary ATI driver fglrx, running an old XFree86 Version
4.3.0 server, and was only able to get two KDE desktops side by side
but completely separate, this was OK, but part of the upgrade I wanted
to be able to drag windows across monitors just like on Windows and
OSX. My Video card was an ATI with a DVI and VGA connector which can
both be ised at the same time.
After Googling it turned out some people found this easy and some
hard, I finally got it to work, by installing the fglrx using aptitude
install, getting the aticonfig to set up dual monitors, then telling
KDE I had dual monitors. Seems you need to do both, oh and you need to
actually power cycle between the changes to xorg.conf. Initially if I
did not do the KDE setup step I got two screens but the cursor and
windows were stuck on the first screen and KDE would not let the
cursor or windows into the second screen. What seems to have happened
is the latter step added the option "Xinerama", even though everything
I read said the fglrx drivers didn't need that option. (BTW it seemed
to work on the standard Gnome version of Ubuntu without telling Gnome
anything).
So following:
> sudo aticonfig --initial --dtop=horizontal
I ran the System/Setup selected the monitor panel and set it to dual screen. then rebooted.
Ending up with this xorg.conf...
Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Primary Screen" 0 0
screen 1 "screen1" rightof "Primary Screen"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "DevInputMice" "AlwaysCore"
EndSection
Section "Files"
# path to defoma fonts
FontPath "/usr/share/X11/fonts/misc"
FontPath "/usr/share/X11/fonts/cyrillic"
FontPath "/usr/share/X11/fonts/100dpi/:unscaled"
FontPath "/usr/share/X11/fonts/75dpi/:unscaled"
FontPath "/usr/share/X11/fonts/Type1"
FontPath "/usr/share/X11/fonts/100dpi"
FontPath "/usr/share/X11/fonts/75dpi"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection
Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "extmod"
Load "freetype"
Load "int10"
Load "type1"
Load "vbe"
load "glx"
load "dbe"
load "v4l"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
option "XkbModel" "pc105"
option "XkbLayout" "us"
option "XkbRules" "xorg"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
option "Device" "/dev/input/mice"
option "Protocol" "IMPS/2"
option "Emulate3Buttons" "no"
option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "DevInputMice"
Driver "mouse"
option "Protocol" "IMPS/2"
option "Device" "/dev/input/mice"
option "ZAxisMapping" "4 5"
option "Emulate3Buttons" "no"
EndSection
Section "Monitor"
identifier "primarymonitor"
vendorname "NEC"
modelname "NEC MultiSync LCD1860NX (Analog)"
HorizSync 31.0-82.0
VertRefresh 55.0-85.0
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
gamma 1.0
EndSection
Section "Device"
identifier "Ati Radeon 9800 Pro 0"
boardname "ati"
busid "PCI:1:0:0"
driver "fglrx"
screen 0
EndSection
Section "Screen"
Identifier "Primary Screen"
Device "Ati Radeon 9800 Pro 0"
Monitor "primarymonitor"
DefaultDepth 24
SubSection "Display"
depth 24
modes "1280x1024@60"
EndSubSection
EndSection
Section "DRI"
Mode 0666
EndSection
Section "device" #
identifier "device1"
boardname "ati"
busid "PCI:1:0:0"
driver "fglrx"
screen 1
EndSection
Section "screen" #
identifier "screen1"
device "device1"
defaultdepth 24
monitor "monitor1"
SubSection "Display"
depth 24
modes "1280x1024@60"
EndSubSection
EndSection
Section "monitor" #
identifier "monitor1"
vendorname "Plug 'n' Play"
modelname "Plug 'n' Play"
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
gamma 1.0
EndSection
Section "ServerFlags"
option "Xinerama" "true"
EndSection
I had to hand edit the file to delete the duplicate monitor and screen definitions that were in there.
Installing Ruby, Gems and fxruby
I installed Ruby using the package manager, its just a matter of
making sure you select everything you need. The biggest problem I had
was getting fxruby working (1.4.6 version). I installed fox1.4 from
the package manager then loaded the fxruby gem using gem install.
However none of my ruby progs using fox14 would work, they reported
they couldn't load fox14. After much installing and uninstalling, the
result was I found a bug in the fxruby gem install, the Makefile calls
make clean after building the fox14.so, and happily deletes it after
building it.. Duh!! I need to report that to the fxruby maintainer, it
burnt about 2 hours of my time. What I did to fix it was simply...
> cd /usr/lib/ruby/gems/1.8/gems/fxruby-1.4.6/ext/fox14
> make
Update, according to the maintainer this is a bug in the latest release of gems 0.9.0
(BTW I wish Debian/Ubuntu put ruby in /usr/local where it belongs!)
Thunderbird setup
I simply copied the .thunderbird directory over to my new home, and
everything seemed to work ok, except clicking on links in my email no
longer worked. I had to edit my
~/.thunderbird/XXXXXXXXXXXX.default/prefs.js file and add the
following...
user_pref("network.protocol-handler.app.ftp", "/opt/firefox/firefox");
user_pref("network.protocol-handler.app.http", "/opt/firefox/firefox");
Where XXXXXXXXX will be different on your machine, and also the path
to firefox.
Also I copied my ~/.mozilla folder and firefox got al my bookmarks etc
from before.
Firefox setup
Clicking on mailto links didn't work, this was fixed by adding this line
user_pref("network.protocol-handler.app.mailto","/opt/bin//thunderbird");
to the user.js file (create a new one if it doesn't exist) that is found in ~/.mozilla/firefox/default.xxx
Of course the .xxx will be different on your system as will the path of thunderbird.
Keyboard Mapping
I like to map my caps lock key to the Win key, so I can use it to
switch windows and desktops etc, I use a Unicomp Linux keboard, as it
has a nice feel, with loud clicky keys, and the control key is where
it is supposed to be, next to the A key, so it doesn't have a Win key,
but the caps lock key is generally useless, so I use that.
It turns out that the Dapper version of KDE does not use the
~/.Xmodmap file as it is supposed to, so you need to manually run
> xmodmap ~/.Xmodmap
One way that has been suggested to automate this is to put that
command in the ~/.kde/Autostart, so that is what I did, I called the
file mapwinkey, set chmod +x, put xmodmap $HOME/.Xmodmap in it, and
put the shell script in the Autostart directory.
More to come as I do it...
Migrating KDE settings
CPU/HW monitoring
Migrating applications
Posted in
Linux
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Tags
linux,ubuntu,firefox,thunderbird,dualmonitor,xmodmap
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