Hi all, I wrote a tool 'nfhashtools' to collect and print the json-hashes from a .nextflow.log . When the input consists in two log files, the tool works like

comm

, printing the objects unique or shared by the files. https://jvarkit.readthedocs.io/en/latest/NFHashTools/

This looks nice! Do you know about Data Lineage? It's a new(ish) native Nextflow feature that prints all of this information to JSON files. It looks quite similar: https://nextflow.io/docs/latest/tutorials/data-lineage.html#compare-task-runs

Retrieve the hash of the

MULTIQC

run from the log file or work directory. Compare it to the task hash of the initial run:

```$ nextflow lineage diff lid://862df53160e07cd823c0c3960545e747 lid://9433dda73f2193491f9a26e3e23cd8a1

diff --git 862df53160e07cd823c0c3960545e747 9433dda73f2193491f9a26e3e23cd8a1

--- 862df53160e07cd823c0c3960545e747

+++ 9433dda73f2193491f9a26e3e23cd8a1

@@ -3,11 +3,11 @@

"sessionId": "065bdc6b-89b4-42ee-92c1-2a5af37f2c50",

"name": "MULTIQC",

"codeChecksum": {

- "value": "edf2e9f84cd3a18ee9259012b660f2dd",

+ "value": "9615a8da3a3f9e935cfc8e4042cdf5e0",

"algorithm": "nextflow",

"mode": "standard"

},

- "script": "\n cp multiqc/* .\n echo \"custom_logo: $PWD/nextflow_logo.png\" \u003e\u003e multiqc_config.yaml\n multiqc -n multiqc_report.html .\n ",

+ "script": "\n cp multiqc/* . # hello!\n echo \"custom_logo: $PWD/nextflow_logo.png\" \u003e\u003e multiqc_config.yaml\n multiqc -n multiqc_report.html .\n ",

"input": [

{

"type": "path",

@@ -38,5 +38,5 @@

"architecture": null,

"globalVars": {},

"binEntries": [],

- "workflowRun": "lid://16b31030474f2e96c55f4940bca3ab64"

+ "workflowRun": "lid://65044872aad36f97e42336b9ba0dee57"

}```

@Phil Ewels yes @Mahesh Binzer-Panchal suggested me to use it a few hours ago: https://nextflow.slack.com/archives/C02T98A23U7/p1763634039667809?thread_ts=1763605427.285879&cid=C02T98A23U7 :-)