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ABackup - User's Manual
AboutThisDoc
This manual describes release 4.03 of the utility ABackup. This
program is (c)1992-1993 by Denis GOUNELLE, any commercial usage or selling
without author's written authorization is strictly forbidden. You can copy
and spread this program under the following conditions:
- all the files are provided
- the files are not modified in any way
- you don't charge more than $6 for copy fee
In spite of several tests, no warranty is made that there are no
errors in ABackup. YOU USE THIS PROGRAM AT YOUR OWN RISK. In no event will I
be liable for any damage, direct or indirect, resulting of the use of
ABackup.
Introduction
ABackup is a backup program written for the Amiga. It may be used
both to make a backup of your hard disk or to archive files, handles
non-AmigaDOS partitions, has a full Intuition interface, and can use XPK
library. Under 2.0 system release, ABackup is able to recognize links and to
manage high density disks.
As this program contains some unusal features, it is recommended to
read this documentation carefuly.
Criticisms and suggestions will always be welcomed. Write to:
M. GOUNELLE Denis
Boite 71
6, rue des cailloux
92110 CLICHY - FRANCE
You can also send a message to the following Internet address :
"gounelle@alphanet.ch". Note that this mailbox is not mine, so please send
only short messages. As I don't have direct access to the messages, don't
expect an answer before a dozen of days.
Contribution
This program is SHAREWARE. If you find it useful, I invite you to
send at least $10 at the address listed above, in order to become a
registered user. Please use only:
- checks from a French bank
- cash (French Francs prefered, otherwise any currency of the E.E.C. is
accepted, as well as US dollars and Swiss Francs ; in either case
please add a little more for change fee)
- checks from an European bank (if you use an EuroCheck, please add $8
because my bank taxes it)
If you send me a check, it must be in French Francs and the beneficiary must
be "M. GOUNELLE Denis". In either case, be sure to give your full address
and to make it readable.
As a registered user, you will receive the next version of ABackup
as soon as it will be available. You should be aware that a $10 contribution
fee only gives right to one update: if you want to receive the next updates
regularly, a $20 contribution is required.
Thanks
I would like to thanks the following:
Reza Elghazi,
Jean-Yves Proux,
Jean-Philippe Rapp,
Michel Schinz,
and everyone who send me a suggestion or reported a bug,
Reza Elghazi,
Stefan Salewski,
for their help concerning the crash under system 3.0,
Horst Schumann,
Fred Hamilton,
beta-tester for non-AmigaDOS partitions support,
Kai Rode,
Stefan Salewski,
for the german translation of the program and the documentation,
Bryan Ford,
Urban Dominik Mueller,
et the others XPK library authors,
and everyone who send me a contribution.
Also, a lot of thanks to Yves Perronoud, Jean-Philippe Rapp, Marc Schaefer,
and Michel Schinz for constant, enthusiast and (almost) unconditional
support.
Getting_started
ABackup can be run from CLI and from Workbench. Usually, ABackup
tries to create a child task that will perform all write operations, in
order to make backup faster. If the task creation fails, ABackup will
perform write operations by itself, just like the first versions of the
program.
From the CLI, you can invoke ABackup as follows:
ABackup [FROM directory] [BUFSIZE size] [NOCOMP ext,ext,...]
[NOTASK] [TMPDIR dir] [SIZE {BYTE|KBYTE|MBYTE|AUTO}] [USEASL] [FONT
nameY]
The FROM option allows to specify a directory name for backup. By default,
this one will be the current directory.
The BUFSIZE option allows to change the size of the write buffer for the
child task (for example "BUFSIZE 64" asks for a 64 Kb buffer). By default,
the buffer is 12 Kb large, which gives the same speed as version 2.43 of
ABackup. This buffer is allocated in CHIP memory, but is only used when
backing up to floppy disks. A larger buffer may increase backup speed up to
20%, but take care that a very large buffer may not give the best gain: the
optimal buffer size depends of the speed of your Amiga, of the compression
method used, and of the average size of your files. On my A3000, a 128 Kb
buffer is quite perfect.
The NOCOMP option allows to specify extensions of file names to don't
compress. You can specify up to 10 extensions, separated by a comma (e.g.:
"NOCOMP .info,.run"). This specification overwrites the one saved in the
configuration file (see backup options).
If the creation of the child task is a problem (no memory etc...) you can
prevent ABackup to create it with the NOTASK argument.
The TMPDIR argument allows you to change the temporary directory used by
ABackup. By default, it uses the "T:" directory, but this may lead to memory
problems, especially if this directory is assigned to "RAM:T".
The SIZE argument allows you to change the default unit of the "Size" menu
(see below).
The USEASL argument allows you to use the file requester of "asl.library"
instead of the built-in requester. This option will be ignored if the
library can't be opened, or if the requester can't be allocated.
The FONT argument allows you to specify the font to use. By default, ABackup
uses the default "text" font. The font will be refused if it is
proportionnal, by there are no size checking. The syntax for font name is
"nameY", e.g. "topaz8".
From the Workbench, you can change the size of the write buffer by
adding a line of the form "BUFSIZE=<size in Kb>" in the "TOOL TYPES" field
of ABackup icon. You can also specify extensions of file names to don't
compress by adding a line of the form "NOCOMP=ext,ext,...", prevent ABackup
to create a child task by adding a line "NOTASK", change the unit of the
"Size" menu by adding a line of the form "SIZE=unit", ask to use the
"asl.library" file requester by adding a line of the form "USEASL", or
select a font by adding a line of the form "FONT=nameY".
You can set ABackup as "DEFAULT TOOL" of an archive file, and call
it with an icon as an argument. If this icon is a directory icon, the
contents of this directory will immediatly be loaded, and the backup
selection screen will be displayed. If this is a file icon, ABackup will
assume it's an archive file, load it's catalogue and display the restore
selection screen.
When the program starts, a screen is displayed with several gadgets
on it: click on the gadget that matches the wanted action. The startup
screen has also a menu with the "Config...", "About..." and "Quit" options.
The first one allows to modify ABackup configuration (see "Configuration"
section), the second one displays informations about the program, and the
last one allows to quit ABackup.
Configuration
A window appears in the middle of the screen, with eight gadgets.
The first three gadgets show the names of the viewer programs corresponding
to the type of a file (ASCII file, IFF picture or other, see the "Viewing"
section), the two next the names of the external compression/decompression
programs (see the "Compression" section), and the last the name of the
temporary directory (see the "Getting_started" section).
At the bottom of the window, three gadgets enable to validate the
changes, to validate and save the changes, or to cancel the changes. The
configuration is saved to the "S:ABackup.config" file, which is loaded each
time the program start.
When you save the configuration, the current color palette is also
saved. This allow to change ABackup default colors, for exampl