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Implement sourcing _index.md content

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Fixes #5. The Markdown content is sourced from _index.gmi.md so we don't
interfere with native Web content.
This commit is contained in:
Timur Demin 2020-11-19 21:12:59 +05:00
parent 0a62f8142c
commit 9d16372487
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GPG key ID: 9EDF3F9D9286FA20
2 changed files with 53 additions and 17 deletions
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69
cmd/gmnhg/main.go
View file

@ -19,7 +19,7 @@
//
// gmngh will read layout template files (with .gotmpl extension) and
// then apply them to content files ending with .md by the following
// algorithm (file names are relative to layouts/gmnhg):
// algorithm (layout file names are relative to layouts/gmnhg):
//
// 1. If the .md file specifies its own layout, the relevant layout file
// is applied. If not, the default template is applied (single). If the
@ -28,9 +28,11 @@
//
// 2. For every top-level content directory an index.gmi is generated,
// the corresponding template is taken from top/{directory_name}.gotmpl.
// If there's no matching template, the index won't be rendered.
// Its content is taken from _index.gmi.md in that dir. If there's no
// matching template or no _index.gmi.md, the index won't be rendered.
//
// 3. The very top index.gmi is generated from index.gotmpl.
// 3. The very top index.gmi is generated from index.gotmpl and
// top-level _index.gmi.
//
// The program will then copy static files from static/ directory to the
// output dir.
@ -43,15 +45,22 @@
// content dir (with .md replaced with .gmi).
//
// 2. Directory index pages are passed .Posts, which is a slice over
// post metadata crawled (see HugoMetadata), and .Dirname, which is
// directory name relative to content dir.
// post metadata crawled (see HugoMetadata), .Dirname, which is
// directory name relative to content dir, and .Content, which is
// rendered from directory's _index.gmi.md.
//
// 3. The top-level index.gmi is passed with the .PostData map whose
// keys are top-level content directories names and values are slices
// over the same post props as specified in 1.
// over the same post props as specified in 1, and .Content, which is
// rendered from top-level _index.gmi.md.
//
// This program provides some extra template functions, documented in
// templates.go.
//
// One might want to ignore _index.gmi.md files with the following Hugo
// config option in config.toml:
//
// ignoreFiles = [ "_index\\.gmi\\.md$" ]
package main
import (
@ -70,7 +79,11 @@ import (
gemini "git.tdem.in/tdemin/gmnhg"
)
const defaultTemplate = "single"
const (
defaultTemplate = "single"
indexMdFilename = "_index.gmi.md"
indexFilename = "index.gmi"
)
const (
contentBase = "content/"
@ -80,7 +93,7 @@ const (
)
var (
tmplNameRegex = regexp.MustCompile(templateBase + `(\w+)\.gotmpl`)
tmplNameRegex = regexp.MustCompile(templateBase + `([\w-_ /]+)\.gotmpl`)
contentNameRegex = regexp.MustCompile(contentBase + `([\w-_ ]+)\.md`)
topLevelPostRegex = regexp.MustCompile(contentBase + `([\w-_ ]+)/([\w-_ ]+)\.md`)
)
@ -259,14 +272,27 @@ func main() {
if !hasTmpl {
continue
}
buf := bytes.Buffer{}
if err := tmpl.Execute(&buf, map[string]interface{}{
"Posts": posts,
"Dirname": dirname,
}); err != nil {
content, err := ioutil.ReadFile(path.Join(contentBase, dirname, indexMdFilename))
if err != nil {
// skip unreadable index files
continue
}
gemtext, _, err := gemini.RenderMarkdown(content, gemini.WithoutMetadata)
if errors.Is(err, gemini.ErrPostIsDraft) {
continue
} else if err != nil {
panic(err)
}
if err := writeFile(path.Join(outputDir, dirname, "index.gmi"), buf.Bytes()); err != nil {
cnt := map[string]interface{}{
"Posts": posts,
"Dirname": dirname,
"Content": gemtext,
}
buf := bytes.Buffer{}
if err := tmpl.Execute(&buf, cnt); err != nil {
panic(err)
}
if err := writeFile(path.Join(outputDir, dirname, indexFilename), buf.Bytes()); err != nil {
panic(err)
}
}
@ -275,11 +301,20 @@ func main() {
if t, hasIndexTmpl := templates["index"]; hasIndexTmpl {
indexTmpl = t
}
buf := bytes.Buffer{}
if err := indexTmpl.Execute(&buf, map[string]interface{}{"PostData": topLevelPosts}); err != nil {
indexContent, err := ioutil.ReadFile(path.Join(contentBase, indexMdFilename))
if err != nil {
panic(err)
}
if err := writeFile(path.Join(outputDir, "index.gmi"), buf.Bytes()); err != nil {
gemtext, _, err := gemini.RenderMarkdown(indexContent, gemini.WithoutMetadata)
if err != nil && !errors.Is(err, gemini.ErrPostIsDraft) {
panic(err)
}
buf := bytes.Buffer{}
cnt := map[string]interface{}{"PostData": topLevelPosts, "Content": gemtext}
if err := indexTmpl.Execute(&buf, cnt); err != nil {
panic(err)
}
if err := writeFile(path.Join(outputDir, indexFilename), buf.Bytes()); err != nil {
panic(err)
}

1
cmd/gmnhg/templates.go
View file

@ -58,6 +58,7 @@ var defaultSingleTemplate = mustParseTmpl("single", `# {{ .Metadata.PostTitle }}
var defaultIndexTemplate = mustParseTmpl("index", `# Site index
{{ with .Content }}{{ printf "%s" . -}}{{ end }}
{{ range $dir, $posts := .PostData }}Index of {{ $dir }}:
{{ range $p := $posts | sortPosts }}=> {{ $p.Link }} {{ $p.Metadata.PostDate.Format "2006-01-02 15:04" }} - {{ $p.Metadata.PostTitle }}