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layouts: generate Netlify redirects from page aliases frontmatter #55310

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layouts: generate Netlify redirects from page aliases frontmatter #55310

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26 changes: 24 additions & 2 deletions layouts/index.redirects
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,30 @@
# Dynamic latest API redirect - automatically points to current latest version
/docs/reference/generated/kubernetes-api/latest/ /docs/reference/generated/kubernetes-api/{{ $latest }}/ 307
/docs/reference/generated/kubernetes-api/latest/* /docs/reference/generated/kubernetes-api/{{ $latest }}/:splat 307
{{- end }}

# Redirects generated from page aliases frontmatter
{{ $allPagePermalinks := slice -}}
{{- range .Site.RegularPages -}}
{{- $allPagePermalinks = $allPagePermalinks | append .RelPermalink -}}
{{- end -}}
{{- range .Site.Pages -}}
{{- $page := . -}}
{{- range $page.Aliases -}}
{{- $alias := . -}}
{{- if not (hasPrefix $alias "/") -}}
{{- $parentDir := path.Dir (strings.TrimSuffix "/" $page.RelPermalink) -}}
{{- $alias = printf "%s/%s/" $parentDir (strings.TrimSuffix "/" $alias) -}}
{{- end -}}
{{- /* Guard: warn if alias conflicts with a real page */ -}}
{{- if in $allPagePermalinks $alias -}}
{{- warnf "alias %q on page %q conflicts with an existing page permalink — skipping" $alias $page.RelPermalink -}}
{{- else }}
{{ $alias }} {{ $page.RelPermalink }} 301
{{- end -}}
{{- end -}}
{{- end }}

# Include all existing static redirects
{{- $staticRedirects := readFile "static/_redirects.base" -}}
{{ $staticRedirects }}
{{ $staticRedirects := readFile "static/_redirects.base" -}}
{{- $staticRedirects }}