mirror of
https://github.com/osmarks/mycorrhiza.git
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54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
package shroom
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import (
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"errors"
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"os"
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"github.com/bouncepaw/mycorrhiza/cfg"
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"github.com/bouncepaw/mycorrhiza/hyphae"
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)
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// FetchTextFile tries to read text file of the given hypha. If there is no file, empty string is returned.
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func FetchTextFile(h hyphae.Hypha) (string, error) {
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switch h := h.(type) {
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case *hyphae.EmptyHypha:
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return "", errors.New("empty hyphae have no text")
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case *hyphae.MediaHypha:
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if !h.HasTextFile() {
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return "", nil
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}
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text, err := os.ReadFile(h.TextFilePath())
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if os.IsNotExist(err) {
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return "", nil
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} else if err != nil {
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return "", err
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}
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return string(text), nil
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case *hyphae.TextualHypha:
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text, err := os.ReadFile(h.TextFilePath())
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if os.IsNotExist(err) {
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return "", nil
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} else if err != nil {
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return "", err
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}
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return string(text), nil
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}
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panic("unreachable")
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}
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// SetHeaderLinks initializes header links by reading the configured hypha, if there is any, or resorting to default values.
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func SetHeaderLinks() {
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switch userLinksHypha := hyphae.ByName(cfg.HeaderLinksHypha).(type) {
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case *hyphae.EmptyHypha:
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cfg.SetDefaultHeaderLinks()
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case hyphae.ExistingHypha:
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contents, err := os.ReadFile(userLinksHypha.TextFilePath())
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if err != nil || len(contents) == 0 {
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cfg.SetDefaultHeaderLinks()
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} else {
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text := string(contents)
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cfg.ParseHeaderLinks(text)
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}
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}
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}
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