Moves the stateless helpers of the image subsystem into
internal/daemon/imagemgr:
paths.go — path validators (ValidateRegisterPaths,
ValidatePromotePaths), artifact staging (StageBootArtifacts,
StageOptionalArtifactPath), metadata (BuildMetadataPackages,
WritePackagesMetadata).
build.go — ResizeRootfs, WriteBuildLog, and the full guest
provisioning script generator (BuildProvisionScript, BuildModulesCommand
and all private script-append helpers) along with the mise/tmux/opencode
version constants.
The orchestrator methods (BuildImage, RegisterImage, PromoteImage,
DeleteImage, runImageBuildNative) stay on *Daemon: they still touch
d.store, d.imageOpsMu, d.beginOperation, capability hooks, and
fcproc-wrapped Daemon helpers — extracting them needs prerequisite
phases (operation protocol, workdisk helpers, tap pool). This commit is
strictly the pure-helper extraction that can land cleanly today.
imagebuild.go shrinks from 453 -> 225 LOC (half gone). images.go shrinks
from 450 -> 374 LOC. imagebuild_test.go updated to call the exported
imagemgr.BuildProvisionScript. Zero behavior change; all tests green.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Thales Maciel
c13c8b11af