lifecycle
lifecycle gave the tidyverse the word superseded, then spent years tuning who gets warned
Comparison · Infra & APIs
cli vs waldo
A side-by-side editorial comparison of cli and waldo — release velocity, themes, recent moves, and the top alternatives to consider.
cli vs waldo: at a glance
What is cli?
cli refines terminal output one formatting detail at a time.
cli builds the formatted terminal output used across r-lib and the tidyverse — inline styles, progress bars, hyperlinks, pluralization. Every release in this window is small and specific: number and byte styles, pluralization that copes with NA and infinities, collapse behaviour that obeys serial comma rules.
What is waldo?
waldo keeps shedding dependencies while teaching its diff engine new object systems
waldo produces the object comparisons that testthat failure messages are built from. The recent releases do two things: drop dependencies - tibble, rematch2 and fansi have all gone - and extend comparison to object systems that did not exist when it was written, notably S7. Correctness of missing-value and tolerance semantics accounts for most of the rest.
cli vs waldo: editorial side-by-side
cli
0.0INFRA · APIS
cli refines terminal output one formatting detail at a time.
◆ Current state
cli builds the formatted terminal output used across r-lib and the tidyverse — inline styles, progress bars, hyperlinks, pluralization. Every release in this window is small and specific: number and byte styles, pluralization that copes with NA and infinities, collapse behaviour that obeys serial comma rules.
◆ Where it's heading
The work splits in two. One half is expressiveness, adding inline style classes for value types packages format constantly. The other is environment compatibility, where cli must work out what the surrounding terminal or IDE actually supports — hyperlink URI generation became configurable rather than fixed, and hyperlinks are disabled where the host renders them badly.
◆ Prediction
Expect more inline style classes and further environment detection work as editors like Positron and RStudio change how they render terminal output.
waldo
0.0INFRA · APIS
waldo keeps shedding dependencies while teaching its diff engine new object systems
◆ Current state
waldo produces the object comparisons that testthat failure messages are built from. The recent releases do two things: drop dependencies - tibble, rematch2 and fansi have all gone - and extend comparison to object systems that did not exist when it was written, notably S7. Correctness of missing-value and tolerance semantics accounts for most of the rest.
◆ Where it's heading
This is a package deliberately shrinking its footprint while widening what it understands. Since it is imported by testthat, every dependency it drops is one fewer package in the check environment of most of CRAN, which is clearly the motivation. The comparison logic itself changes only when R gains a new way to represent objects.
◆ Prediction
Expect S7 support to deepen from basic to complete as S7 adoption grows, and further dependency removals; the diff algorithm itself looks settled.
Alternatives to cli and waldo
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either cli or waldo.
pkgdown
pkgdown now generates llms.txt and a markdown copy of every documentation page
usethis
usethis swaps in the Air formatter and stops assuming RStudio is the editor
knitr
knitr adds OpenTelemetry tracing, turning document builds into observable pipelines
lintr
lintr makes the native pipe the default rule and clears out a decade of deprecations
covr
covr's coverage tooling has been stable to the point of dormancy since 2022
Recent activity from cli and waldo
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4mo agoclicli 3.6.6 adds inline number and byte formatting styles
- 1y agowaldoCompares weakrefs, ignores read-only S7 properties
- 1y agoclicli 3.6.5 handles long strings in code_highlight()
- 1y agoclicli 3.6.4 makes hyperlink URIs configurable
- 1y agowaldoOnly uses bit64 comparison when bit64 is installed
- 1y agowaldoDrops tibble and rematch2; adds basic S7 support
- 1y agowaldoDrops the fansi dependency
- 2y agoclicli 3.6.3 builds on ARM Windows, fixes RStudio highlighting
- 2y agoclicli 3.6.2 makes collapsed strings follow serial comma rules
- 2y agowaldoFixes for upcoming R-devel changes
- 3y agowaldoTolerance now governs both display and NaN equality
- 3y agoclicli 3.6.1 disables ANSI hyperlinks on the RStudio render plane
Frequently asked questions
What is the difference between cli and waldo?
They serve adjacent needs but don't currently overlap on shipped themes. cli and waldo are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is cli better than waldo?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. cli and waldo are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to cli?
Top cli alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "cli alternatives" section above for the current picks, or visit /alternatives/cli-r for the full list with editorial commentary on each.
What are the best alternatives to waldo?
Top waldo alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "waldo alternatives" section above for the current picks, or visit /alternatives/waldo for the full list with editorial commentary on each.