HaikuDepot: Icon / Tarball Handling - Fix

Resolves #16523

Change-Id: Ied52904da51455fe164cda93daecde6dc3e051d4
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3219
Reviewed-by: Adrien Destugues

HaikuDepot: Icon / Tarball Handling - Fix

Resolves #16523

Change-Id: Ied52904da51455fe164cda93daecde6dc3e051d4
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3219
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

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HaikuDepot: Icon / Tarball Handling

Instead of exploding the tar-ball of icons from
HDS, keep it as a tar-ball, index it and read
data directly out from specific indicies on demand.

This will speed

HaikuDepot: Icon / Tarball Handling

Instead of exploding the tar-ball of icons from
HDS, keep it as a tar-ball, index it and read
data directly out from specific indicies on demand.

This will speed up the process of downloading
the icons by removing the unpack. Also updates
will be faster by avoiding the need to delete the
old icon files.

Because icons are loaded on-demand, the start
time is faster by avoiding all the icon loads.
There are also savings on memory consumption.

Indexing on each load is surprisingly fast so
no external index is maintained. Likewise for
the tar-balls's meta-data.

This commit does not cover the implementation
of an LRU cache of the icons in memory.

Relates to #15370

Change-Id: Ia1647d8c805be89618f493d2592bf7877fca3f14
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3205
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

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HaikuDepot: Process and Data-loading Improvements

This change is a reshuffle of the backend processing involved in the
aquisition of data from servers including the pull-down and load of
HPKR data a

HaikuDepot: Process and Data-loading Improvements

This change is a reshuffle of the backend processing involved in the
aquisition of data from servers including the pull-down and load of
HPKR data as well as the pull-down and load of data from the
HaikuDepotServer (HDS) system. The driver for this change is to
implement an initial implementation of a progress bar for the
loading of data as the application starts.

The following are notable changes;

* Removed some previously attempted 'functional style' logic in the
model which didn't fit well with C++
* Use of the base-url in the logical mapping from HDS and HD data is no
longer required and has been removed
* Some logging has been improved making it clearer which part of HD
is producing the logging which in turn helps with debugging issues
* List class has been modified to more cleanly support sorted lists
and binary searches; tests have also be updated accordingly
* Reorganise and tidy-up of the data-loading processes' structures
* The local repository update (HPKR) and data-load occur in background
processes now in the same system as the HDS data-load - this has been
crudely shifted from the MainWindow to new Processes and incorporated
into the background processing system
* The 'state-machine' background process runner is now replaced with a
'coordinator' style approach that can more easily handle the new
processes related to HPKR loading.
* Progress for loading processes is shown in the main window in the
WorkStatusView - this is flickering a bit, but basically works
* Added some documentation regarding how Processes work in the system
* The "Refresh Repositories" menu item now also updates data from HDS
* The "Refresh Repositories" menu item is disabled when the background
processes are running that update the repository data

Some further refinement would be good, but this change is large enough
for one round of improvements. There is an issue that the status bar
is used for screenshot display as well as this data-loading, but that
was the case before so it is something that can be dealt with later if
it is a problem.

Change-Id: I7668307645e3aabaf7e4a6e37e2cca80cc0f489e
Reviewed-on: https://review.haiku-os.org/770
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

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HaikuDepot : More Backend Communications Improvements

* Further improves the logging and provides some
basic performance numbers.
* Moves the bulk-load logic out of the data-model
class.
* Intro

HaikuDepot : More Backend Communications Improvements

* Further improves the logging and provides some
basic performance numbers.
* Moves the bulk-load logic out of the data-model
class.
* Introduces a state-machine for the bulk-load
process so that it will be more easily able to be
shifted to non-blocking IO when the HTTP libraries
can do that.
* Implements concurrent loading of the bulk-data to
hopefully improve lead time for icons and meta-data.
* Loads data to a temporary file and then moves to the
final location in order to avoid partially written
data in the cache.
* Handles situations where no network is available;
prevents attempt to access the network.
* Allows bulk-load processes to be cancelled when the
application quits.
* Introduces command-line arguments to help simulate
scenarios to help with testing performance and
network absence.
* Implements ordered insert and binary search in the
'List' class + basic unit test.

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HaikuDepot: Improve icon download handling performance

Previously each icon would launch an independent HTTP request to
pull down the HVIF icon data. This change means that the data
will be pulled

HaikuDepot: Improve icon download handling performance

Previously each icon would launch an independent HTTP request to
pull down the HVIF icon data. This change means that the data
will be pulled down in bulk across all packages as a .tgz and
will then be kept in a cache locally. The client-server logic
will use standard "If-Modified-Since" headers to check for
updates each time the HaikuDepot desktop application starts up.
This arrangement will bring down the HVIF as well as bitmap
icons and use the best representation it can.

Additionally, it is possible from a command-line option to log
HTTP traffic verbosely and it is also possible to use an "-h"
flag to display help on command-line arguments.

The code-structure around this change also anticipates some
future extensions to handle other client-server improvements.

Fixes #11804

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