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  • simonw · 5 ✖

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  • Progress bar for sqlite-utils insert · 5 ✖

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  • OWNER · 5 ✖
id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions issue performed_via_github_app
714758139 https://github.com/simonw/sqlite-utils/issues/173#issuecomment-714758139 https://api.github.com/repos/simonw/sqlite-utils/issues/173 MDEyOklzc3VlQ29tbWVudDcxNDc1ODEzOQ== simonw 9599 2020-10-22T20:57:56Z 2020-10-22T20:57:56Z OWNER

I could use ijson to provide a progress bar for JSON arrays too. I'd prefer to keep that as an optional dependency though, since sqlite-utils is a library dependency for many other projects and it would be using ijson purely for the CLI component.

Here's how to iterate through a list of objects being read from a file:

python import json parser = ijson.items(open( "/tmp/list.json" ), "item") for object in parser: # ...

 
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 Progress bar for sqlite-utils insert 707478649  
698578959 https://github.com/simonw/sqlite-utils/issues/173#issuecomment-698578959 https://api.github.com/repos/simonw/sqlite-utils/issues/173 MDEyOklzc3VlQ29tbWVudDY5ODU3ODk1OQ== simonw 9599 2020-09-24T20:44:35Z 2020-09-24T20:50:19Z OWNER

I'm using a click.File() at the moment: https://github.com/simonw/sqlite-utils/blob/5a63b9e88c5887432eb1d7df39f304ea55038437/sqlite_utils/cli.py#L496

I'll need to change that to be something that I can easily measure progress through. Also I should change its name - json_file is a bad name when it sometimes handles csv or tsv instead.

It looks like the argument provided by click.File doesn't provide a way to read the size of the file, so I need to switch that out for a file path instead. https://click.palletsprojects.com/en/7.x/api/#click.Path

 
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 Progress bar for sqlite-utils insert 707478649  
698579389 https://github.com/simonw/sqlite-utils/issues/173#issuecomment-698579389 https://api.github.com/repos/simonw/sqlite-utils/issues/173 MDEyOklzc3VlQ29tbWVudDY5ODU3OTM4OQ== simonw 9599 2020-09-24T20:45:29Z 2020-09-24T20:45:29Z OWNER

Relevant code: https://github.com/simonw/sqlite-utils/blob/5a63b9e88c5887432eb1d7df39f304ea55038437/sqlite_utils/cli.py#L550-L560

Changing that to track progress through NL-JSON, CSV and TSV shouldn't be too hard.

 
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 Progress bar for sqlite-utils insert 707478649  
698577508 https://github.com/simonw/sqlite-utils/issues/173#issuecomment-698577508 https://api.github.com/repos/simonw/sqlite-utils/issues/173 MDEyOklzc3VlQ29tbWVudDY5ODU3NzUwOA== simonw 9599 2020-09-24T20:41:18Z 2020-09-24T20:41:18Z OWNER

I know how to build this for CSV and TSV - I can read them via a file wrapper that counts how many bytes it has seen.

Not sure how to do it for JSON though. Maybe I could provide it just for newline-delimited JSON? Again I can measure progress based on how many bytes have been read.

 
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 Progress bar for sqlite-utils insert 707478649  
697577646 https://github.com/simonw/sqlite-utils/issues/173#issuecomment-697577646 https://api.github.com/repos/simonw/sqlite-utils/issues/173 MDEyOklzc3VlQ29tbWVudDY5NzU3NzY0Ng== simonw 9599 2020-09-23T15:48:51Z 2020-09-23T15:48:51Z OWNER

This can only work when it's reading from a file, not when it's reading from standard input.

 
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 Progress bar for sqlite-utils insert 707478649  

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