Bug fixes and support for Gemtext markup

git-svn-id: file:///srv/svn/repo/aya/trunk@94 cec141ff-132a-4243-88a5-ce187bd62f94

README.md

@@ -17,24 +17,19 @@ Named after [Aya Shameimaru](https://en.touhouwiki.net/wiki/Aya_Shameimaru) from
 
 Build it manually provided you have Go (>=1.17) installed:
 
-	$ go install mahou-no-mori.yakumo.dev/aya/cmd/aya@latest (1)
-	--- or ---
-	$ git clone https://git.mentality.rip/novaburst/aya
+	$ svn checkout https://svn.laidback.moe/repo/aya/trunk aya
 	$ cd aya
 	$ make
 	# make install
 
-(1) If you use this method, the `aya version` subcommand may print the wrong string,
-but it should not be a problem unless you use it on a page.
 
 You can also disable certain features at build time, with the `-tags` switch.
-Currently, these tags are available: `noamber`, `nogcss`.
+Currently, these tags are available: `noamber`, `nogcss`, `nogemtext`
 See `go help buildconstraint` for more details.
 
 ## Ideology
 
-Keep your texts in markdown, [amber](https://github.com/eknkc/amber), or html format right in the main directory
-of your blog/site.
+Keep your texts in markdown, [amber](https://github.com/eknkc/amber), [gemtext](https://git.sr.ht/~m15o/gmi2html), or html format right in the main directory of your blog/site.
 
 Keep all service files (extensions, layout pages, deployment scripts etc)
 in the `.aya` subdirectory.
@@ -91,6 +86,22 @@ echo '</channel>' >> $AYA_OUTDIR/blog/rss.xml
 echo '</rss>' >> $AYA_OUTDIR/blog/rss.xml
 ```
 
+## Example of [Twtxt](https://twtxt.readthedocs.io) feed generation
+
+```bash
+#!/bin/sh
+for f in ./blog/*/*.md; do
+	d=$($AYA var $f date)
+	if [ !-z $d ]; then
+		timestamp=`gdate --date "$d" +%s`
+		title=`$AYA var $f title | tr A-Z a-z`
+		url=`$AYA var $f url`
+		descr=`$AYA var $f description`
+		echo $timestamp "$(gdate --date @$timestamp --iso-8601=seconds) $title ($desc) -- $url"
+	fi
+done | sort -r -n | cut -d' ' -f2- >> $AYA_OUTDIR/twtxt.txt
+```
+
 ## Hooks
 There are two special plugin names that are executed every time the build
 happens - `prehook` and `posthook`. You can define some global actions here like

cmd/aya/build.go

@@ -17,6 +17,8 @@ func build(path string, w io.Writer, vars Vars) error {
                 return buildAmber(path, w, vars)
         } else if ext == ".gcss" {
                 return buildGCSS(path, w)
+	} else if ext == ".gmi" {
+		return buildGemtext(path, w, vars)
         } else {
                 return buildRaw(path, w)
         }

cmd/aya/gemini.go

@@ -0,0 +1,30 @@
+//go:build !nogemtext
+package main
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+	"git.sr.ht/~m15o/gmi2html"
+)
+
+func buildGemtext(path string, w io.Writer, vars Vars) error {
+	v, body, err := getVars(path, vars)
+	if err != nil {
+		return err
+	}
+	content, err := render(body, v)
+	if err != nil {
+		return err
+	}
+	v["content"] = string(gmi2html.Convert(string(content)))
+	if w == nil {
+		out, err := os.Create(filepath.Join(PUBDIR, renameExt(path, "", ".html")))
+		if err != nil {
+			return err
+		}
+		defer out.Close()
+		w = out
+	}
+	return buildHTML(filepath.Join(AYADIR, v["layout"]), w, v)
+}

cmd/aya/gemini_stub.go

@@ -0,0 +1,11 @@
+//go:build nogemtext
+package main
+
+import (
+	"io"
+	"errors"
+)
+
+func buildGemtext(path string, w io.Writer, vars Vars) error {
+	return errors.New("Gemtext support was disabled at build-time")
+}

cmd/aya/main.go

@@ -54,7 +54,7 @@ func main() {
 		if err != nil {
 			log.Fatalf("\033[0;31m%s\033[0m\n", "I see, you want me to serve a non-existent directory, huh?")
 		} else {
-			aya.HttpServe(fmt.Sprint(d), 8000)
+			aya.HttpServe(PUBDIR, 8000)
 		}
 	case "var":
 		if len(args) == 0 {

go.mod

@@ -3,6 +3,7 @@ module mahou-no-mori.yakumo.dev/aya
 go 1.17
 
 require (
+	git.sr.ht/~m15o/gmi2html v0.4.0
 	github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385
 	github.com/russross/blackfriday/v2 v2.1.0
 	github.com/yosssi/gcss v0.1.0

go.sum

@@ -1,3 +1,5 @@
+git.sr.ht/~m15o/gmi2html v0.4.0 h1:WwxWgZQ26YWcdhG9fgGnGPq4zigMIVqZwYMSNY0T1oc=
+git.sr.ht/~m15o/gmi2html v0.4.0/go.mod h1:z3rqGHBxMss/zQJTA5lHCm+s17JkRtu98kK3ehzC/Uk=
 github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385 h1:clC1lXBpe2kTj2VHdaIu9ajZQe4kcEY9j0NsnDDBZ3o=
 github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385/go.mod h1:0vRUJqYpeSZifjYj7uP3BG/gKcuzL9xWVV/Y+cK33KM=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=

usage.go

@@ -7,8 +7,8 @@ import (
 // This function is called by the `aya help` subcommand
 func PrintUsage() {
 	fmt.Printf("aya/%v\n", PrintFullVersion())
-	fmt.Println("Homepage: https://suzunaan.yakumo.dev/aya")
-	fmt.Println("Repository: https://svn.yakumo.dev/repo/aya")
+	fmt.Println("Homepage: https://projects.laidback.moe/aya")
+	fmt.Println("Repository: https://svn.laidback.moe/repo/aya")
 	fmt.Println("==")
 	fmt.Println("build [file] · (Re)build a site or a file in particular")
 	fmt.Println("clean · Remove the generated .pub directory")