BUG: lockfile_mode = "generate" fails when a Packslip release does not support every target

[dkarter]

What happened

I enabled generate mode in mise 2026.9.5:

[tools]
pitchfork = "latest"

[settings]
lockfile = true
lockfile_mode = "generate"

When I run:

mise install

mise tries to generate lock entries for all target platforms. Pitchfork does not publish binaries for Linux musl or macOS x64.

The command fails with errors such as:

failed to resolve pitchfork for linux-arm64-musl:
selecting the packslip artifact for linux-arm64-musl

It can also fail for macos-x64.

What I expected

Mise should skip platforms that Pitchfork does not support.
A tool should not need to publish binaries for every lockfile target.

Why this matters

One unsupported platform stops the whole install.

This makes generate mode unusable in projects that contain Packslip tools with a limited platform list.

It also prevents mise from writing the otherwise valid lockfile.

Likely cause

Pitchfork resolves through:
packslip:github.com/jdx/pitchfork

The Packslip backend returns NoHostArtifact when no artifact matches a target.
Generate mode only skips errors marked as UnsupportedTarget. It treats NoHostArtifact as a normal failure and stops.
PackslipBackend::resolve_lock_info should convert NoHostArtifact into mise’s typed UnsupportedTarget error. Other errors, such as ambiguous artifacts or invalid manifests, should remain fatal.

related to #13018

[jdx]

Confirmed—thank you for the precise diagnosis. I reproduced this with the 2026.9.5 release and the pitchfork configuration above.

I've opened #13102. It converts only Packslip's NoHostArtifact result into the typed UnsupportedTarget error used by generate mode. Ambiguous artifact selection and other Packslip verification/manifest failures remain fatal.

With the fix, the same install succeeds and the generated lockfile contains the supported Linux, macOS ARM64, and Windows entries while omitting Linux musl and macOS x64. The focused Packslip suite and the repository formatting/all-features check pass.

AI-assisted — Tool: Codex; model: OpenAI/unavailable; version: unavailable.