v3: Migration tool fails to update pkgname attribute from {{.PackageName}} to {{.SrcPackageName}}

[vrsarah]

Description

The mockery migration tool fails to correctly update the pkgname attribute in configuration files. When migrating from an older version to a newer version, it does not convert outpkg: {{.PackageName}} to pkgname: {{.SrcPackageName}}, causing compatibility issues with newer mockery versions.

Reproducer

1. Start with an older mockery config file containing:

outpkg: "{{.PackageName}}"

2. Run the migration tool to convert to the newer version
3. The migrated file still contains pkgname: "{{.PackageName}}" instead of pkgname: "{{.SrcPackageName}}"

Expected behavior

The migration tool should update the pkgname attribute from {{.PackageName}} to {{.SrcPackageName}} to ensure compatibility with newer versions of mockery.

Mockery version

v3.2.5

Installation Mechanism

• go get
• [] Pre-built release
• [] homebrew
• [] Other: [please describe]

Go version

go1.24.2

[vrsarah]

Or maybe this is a template issue? The error I was seeing without fixing the {{.PackageName}} was:

Can't parse config templates for interface error="failed to execute pkgname template: template: config-template:1:2: executing \"config-template\" at <.PackageName>: can't evaluate field PackageName in type config.TemplateData"

[LandonTClipp]

Ah sorry about that, I thought we had this fixed. I'll take a look.

[LandonTClipp]

Looking again, this would have been mentioned in the deprecations table that mockery printed when you ran the migration command. It asks you to manually resolve it. It's possible to handle this automatically, I just haven't done this.