force:data:bulk:upsert errors out if file is over batch character limit

[aheber]

Summary

If the total character count of a file exceeds the allowed per-batch character count (still less than 10K rows) then the command errors when uploading the file.

Steps To Reproduce:

Upload a batch file that includes >10MB of data in less than 10K rows

Expected result

The file should be broken into smaller batches, just as it would be if the source file was >10K rows

Actual result

The command end in Error but doesn't provide failure details.

System Information

{
"cliVersion": "sfdx-cli/7.144.2",
"architecture": "win32-x64",
"nodeVersion": "node-v16.14.2",
"pluginVersions": [
"@oclif/plugin-autocomplete 0.3.0 (core)",
"@oclif/plugin-commands 1.3.0 (core)",
"@oclif/plugin-help 3.3.1 (core)",
"@oclif/plugin-not-found 1.2.6 (core)",
"@oclif/plugin-plugins 1.10.11 (core)",
"@oclif/plugin-update 1.5.0 (core)",
"@oclif/plugin-warn-if-update-available 1.7.3 (core)",
"@oclif/plugin-which 1.0.4 (core)",
"@salesforce/sfdx-plugin-lwc-test 0.1.7 (core)",
"alias 1.2.1 (core)",
"apex 0.11.0 (core)",
"auth 1.8.1 (core)",
"community 1.1.4 (core)",
"config 1.3.23 (core)",
"custom-metadata 1.0.12 (core)",
"data 0.6.11 (core)",
"generator 1.2.2 (core)",
"info 1.3.1 (core)",
"limits 1.3.0 (core)",
"org 1.11.2 (core)",
"salesforce-alm 54.1.0 (core)",
"schema 1.1.0 (core)",
"sfdx-cli 7.144.2 (core)",
"sfdx-devops 0.4.6",
"sfdx-heber 0.0.2",
"sfdx-typegen 0.6.2",
"sfpowerkit 4.1.5",
"shane-sfdx-plugins 4.43.0",
"├─ @mshanemc/sfdx-sosl 1.1.0",
"└─ @mshanemc/plugin-streaming 1.1.7",
"source 1.9.2 (core)",
"telemetry 1.4.0 (core)",
"templates 54.3.0 (core)",
"trust 1.1.0 (core)",
"user 1.7.1 (core)"
],
"osVersion": "Windows_NT 10.0.19043"
}

Additional information

I will have a PR against the data plugin shortly

[github-actions]

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[mshanemc]

Thanks for the PR!