Add new build tool.

bibliogra.py requires Python 2, which is a pain to deal with.  This
commit adds a Go tool that compiles CensorBib from BibTeX to HTML.  The
tool does the bare minimum and is quite strict in the BibTeX format it
expects.

src/main_test.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/nickng/bibtex"
+)
+
+func mustParse(t *testing.T, s string) bibEntry {
+	t.Helper()
+	bib, err := bibtex.Parse(strings.NewReader(s))
+	if err != nil {
+		t.Fatalf("failed to parse bibtex: %v", err)
+	}
+	return bibEntry{
+		BibEntry: *bib.Entries[0],
+		lineNum:  0,
+	}
+}
+
+func TestRun(t *testing.T) {
+	buf := bytes.NewBufferString("")
+	entry := mustParse(t, `@inproceedings{Almutairi2024a,
+		author = {Sultan Almutairi and Yogev Neumann and Khaled Harfoush},
+		title = {Fingerprinting {VPNs} with Custom Router Firmware: A New Censorship Threat Model},
+		booktitle = {Consumer Communications \& Networking Conference},
+		publisher = {IEEE},
+		year = {2024},
+		url = {https://censorbib.nymity.ch/pdf/Almutairi2024a.pdf},
+	}`)
+
+	makeBib(buf, []bibEntry{entry})
+
+	bufStr := buf.String()
+	if !strings.HasPrefix(bufStr, "<ul>") {
+		t.Errorf("expected <ul> but got %q...", bufStr[:10])
+	}
+	if !strings.HasSuffix(bufStr, "</ul>\n") {
+		t.Errorf("expected </ul> but got %q", bufStr[len(bufStr)-10:])
+	}
+}