haskell/cabal

`cabal update`: option to print which packages were updated

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#7,801 opened on Nov 7, 2021

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cabal-install: cmd/updategood first issuepriority: lowtype: enhancement

Description

Improve cabal update to print the list of packages that were updated.
Could be guarded by -v1 (or maybe -v is only used for debug information?).

Contributor guide

Tech stack
None
Domain
clibuild system
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
familiarity with cabal command line toolsbasic knowledge of Haskell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
Research direction
The issue requests adding an option to print updated packages after 'cabal update'. The implementation should be guarded by a verbosity flag like v1. Start by examining the cabal update command implementation in the cabal install package, specifically the Command.Update module. Look for where the update is performed and find the list of updated packages. Then modify the code to output the list under the appropriate verbosity level. Check existing tests for the update command to ensure no regression. The discussion in the issue might provide additional context on desired output format.
`cabal update`: option to print which packages were updated · haskell/cabal#7801 | Good First Issue