CLI catalog while calibre is running

tycho · 10-03-2020, 04:09 AM

Hello

I use CLI:

> calibredb catalog

if calibre is running, calibre says I need to use remote library, but 'catalog' is not compatible with remote library. Any suggestion?

kovidgoyal · 10-03-2020, 05:10 AM

generate the catalog from inside calibre.

tycho · 10-03-2020, 10:04 AM

ok, thanks, using the GUI.
So I guess it's not possible to use the CLI to get the catalog while calibre is running

BetterRed · 10-03-2020, 05:31 PM

@tycho - using Preferences->Toolbars & Menus, add the Create Catalogue tool to a menu or toolbar.

BR

DNSB · 10-03-2020, 07:40 PM

Quote:

Originally Posted by tycho

ok, thanks, using the GUI.
So I guess it's not possible to use the CLI to get the catalog while calibre is running

That would have the CLI and the GUI accessing the database simultaneously which calibre was not designed to handle. If nothing else, SQLite was designed as an embedded database not a client/server database. One major drawback to that design is that SQLite locks the entire database during a write which can result in very noticeable slowness if multiple users are trying to access it.

See the Quirks, Caveats, and Gotchas In SQLite page for more on this topic.

tycho · 10-04-2020, 03:59 AM

yes, thanks, but you know that the other CLI commands are working with remote database (aka while calibre is running). And 'catalog' is a read-only operation.

So I'm confused why I can run search, add, set_metadata while calibre is running, but not 'catalog'.

kovidgoyal · 10-04-2020, 04:05 AM

Quote:

Originally Posted by tycho

So I'm confused why I can run search, add, set_metadata while calibre is running, but not 'catalog'.

Because the catalog code was written assuming access to a database object.

tycho · 10-06-2020, 08:15 AM

ok, thanks

10-03-2020, 04:09 AM	#1
tycho Member Posts: 23 Karma: 10 Join Date: Jun 2018 Device: samsung	CLI catalog while calibre is running Hello I use CLI: > calibredb catalog if calibre is running, calibre says I need to use remote library, but 'catalog' is not compatible with remote library. Any suggestion?

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10-03-2020, 05:10 AM	#2
kovidgoyal creator of calibre Posts: 43,853 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	generate the catalog from inside calibre.

10-03-2020, 10:04 AM	#3
tycho Member Posts: 23 Karma: 10 Join Date: Jun 2018 Device: samsung	ok, thanks, using the GUI. So I guess it's not possible to use the CLI to get the catalog while calibre is running

10-03-2020, 05:31 PM	#4
BetterRed null operator (he/him) Posts: 20,567 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	@tycho - using Preferences->Toolbars & Menus, add the Create Catalogue tool to a menu or toolbar. BR

10-04-2020, 03:59 AM	#6
tycho Member Posts: 23 Karma: 10 Join Date: Jun 2018 Device: samsung	yes, thanks, but you know that the other CLI commands are working with remote database (aka while calibre is running). And 'catalog' is a read-only operation. So I'm confused why I can run search, add, set_metadata while calibre is running, but not 'catalog'.

10-06-2020, 08:15 AM	#8
tycho Member Posts: 23 Karma: 10 Join Date: Jun 2018 Device: samsung	ok, thanks