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mycorrhiza/backlinks/hooks.go

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package backlinks
import (
"git.sr.ht/~bouncepaw/mycomarkup/v5"
"git.sr.ht/~bouncepaw/mycomarkup/v5/links"
"git.sr.ht/~bouncepaw/mycomarkup/v5/mycocontext"
"git.sr.ht/~bouncepaw/mycomarkup/v5/tools"
"github.com/bouncepaw/mycorrhiza/hyphae"
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"github.com/bouncepaw/mycorrhiza/mycoopts"
)
// UpdateBacklinksAfterEdit is a creation/editing hook for backlinks index
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func UpdateBacklinksAfterEdit(h hyphae.Hypha, oldText string) {
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oldLinks := extractHyphaLinksFromContent(h.CanonicalName(), oldText)
newLinks := extractHyphaLinks(h)
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backlinkConveyor <- backlinkIndexEdit{h.CanonicalName(), oldLinks, newLinks}
}
// UpdateBacklinksAfterDelete is a deletion hook for backlinks index
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func UpdateBacklinksAfterDelete(h hyphae.Hypha, oldText string) {
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oldLinks := extractHyphaLinksFromContent(h.CanonicalName(), oldText)
backlinkConveyor <- backlinkIndexDeletion{h.CanonicalName(), oldLinks}
}
// UpdateBacklinksAfterRename is a renaming hook for backlinks index
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func UpdateBacklinksAfterRename(h hyphae.Hypha, oldName string) {
actualLinks := extractHyphaLinks(h)
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backlinkConveyor <- backlinkIndexRenaming{oldName, h.CanonicalName(), actualLinks}
}
// extractHyphaLinks extracts hypha links from a desired hypha
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func extractHyphaLinks(h hyphae.Hypha) []string {
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return extractHyphaLinksFromContent(h.CanonicalName(), fetchText(h))
}
// extractHyphaLinksFromContent extracts local hypha links from the provided text.
func extractHyphaLinksFromContent(hyphaName string, contents string) []string {
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ctx, _ := mycocontext.ContextFromStringInput(contents, mycoopts.MarkupOptions(hyphaName))
linkVisitor, getLinks := tools.LinkVisitor(ctx)
// Ignore the result of BlockTree because we call it for linkVisitor.
_ = mycomarkup.BlockTree(ctx, linkVisitor)
foundLinks := getLinks()
var result []string
for _, link := range foundLinks {
switch link := link.(type) {
case *links.LocalLink:
result = append(result, link.Target(ctx))
}
}
return result
}