From 7397e3613a39576b166556c2a0245ae558c2b6c4 Mon Sep 17 00:00:00 2001
From: Guillaume Grossetie <ggrossetie@gmail.com>
Date: Sun, 19 Apr 2020 17:21:40 +0200
Subject: [PATCH] resolves #208 integrate with built-in template converter

---
 lib/converter.js                              |  6 ++++
 package-lock.json                             | 36 +++++++++++++++++--
 package.json                                  |  5 +--
 templates/paragraph.njk                       |  1 +
 .../fixtures/templates/nunjucks/paragraph.njk |  1 +
 test/templates_test.js                        |  5 +++
 6 files changed, 49 insertions(+), 5 deletions(-)
 create mode 100644 templates/paragraph.njk
 create mode 100644 test/fixtures/templates/nunjucks/paragraph.njk

diff --git a/lib/converter.js b/lib/converter.js
index 196c399f..842bb97b 100644
--- a/lib/converter.js
+++ b/lib/converter.js
@@ -15,6 +15,12 @@ function registerTemplateConverter (processor, templates) {
     constructor () {
       this.baseConverter = processor.Html5Converter.create()
       this.templates = templates
+      this.backendTraits = {
+        basebackend: 'html5',
+        outfilesuffix: '.pdf',
+        htmlsyntax: 'html',
+        supports_templates: true
+      }
     }
 
     convert (node, transform, opts) {
diff --git a/package-lock.json b/package-lock.json
index 59ad70cb..c5dd583f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,9 +13,9 @@
       }
     },
     "@asciidoctor/core": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@asciidoctor/core/-/core-2.1.1.tgz",
-      "integrity": "sha512-yzV8GvrVUZst/lAlDvvEWY9Na9YhevE7PE3k1SvtQNyJEnpTWoKHrPG3soQ95nPM4oh2USMjpKDh4cEbvIRZpw==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@asciidoctor/core/-/core-2.2.0.tgz",
+      "integrity": "sha512-WN/mFuU4SeWaDqpGvRwAf+Tq2T8NQkVVpZ3Ne1/ZRxDKElzFkqq8bGbmxSMWmMVzC+H9ZO1YxxbOjhWEiNvpOA==",
       "dev": true,
       "requires": {
         "asciidoctor-opal-runtime": "0.3.0",
@@ -158,6 +158,12 @@
         "@types/node": "*"
       }
     },
+    "a-sync-waterfall": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/a-sync-waterfall/-/a-sync-waterfall-1.0.1.tgz",
+      "integrity": "sha512-RYTOHHdWipFUliRFMCS4X2Yn2X8M87V/OpSqWzKKOGhzqyUxzyVmhHDH9sAvG+ZuQf/TAOFsLCpMw09I1ufUnA==",
+      "dev": true
+    },
     "acorn": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
@@ -307,6 +313,12 @@
         }
       }
     },
+    "asap": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
+      "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=",
+      "dev": true
+    },
     "asciidoctor-opal-runtime": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/asciidoctor-opal-runtime/-/asciidoctor-opal-runtime-0.3.0.tgz",
@@ -575,6 +587,12 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
+    "commander": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
+      "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow==",
+      "dev": true
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -2158,6 +2176,18 @@
         "boolbase": "~1.0.0"
       }
     },
+    "nunjucks": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/nunjucks/-/nunjucks-3.2.1.tgz",
+      "integrity": "sha512-LYlVuC1ZNSalQQkLNNPvcgPt2M9FTY9bs39mTCuFXtqh7jWbYzhDlmz2M6onPiXEhdZo+b9anRhc+uBGuJZ2bQ==",
+      "dev": true,
+      "requires": {
+        "a-sync-waterfall": "^1.0.0",
+        "asap": "^2.0.3",
+        "chokidar": "^3.3.0",
+        "commander": "^3.0.2"
+      }
+    },
     "object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
diff --git a/package.json b/package.json
index 3b863202..5216457b 100644
--- a/package.json
+++ b/package.json
@@ -48,16 +48,17 @@
     "yargs": "15.3.1"
   },
   "devDependencies": {
-    "@asciidoctor/core": "^2.1.0",
+    "@asciidoctor/core": "^2.2.0",
     "chai": "4.2.0",
     "cheerio": "^1.0.0-rc.3",
     "dirty-chai": "2.0.1",
     "mocha": "7.1.2",
+    "nunjucks": "^3.2.1",
     "pixelmatch": "^5.1.0",
     "rimraf": "^3.0.0",
     "standard": "14.3.3"
   },
   "peerDependencies": {
-    "@asciidoctor/core": "^2.1.0"
+    "@asciidoctor/core": "^2.2.0"
   }
 }
diff --git a/templates/paragraph.njk b/templates/paragraph.njk
new file mode 100644
index 00000000..1cddb8d9
--- /dev/null
+++ b/templates/paragraph.njk
@@ -0,0 +1 @@
+<p class="paragraph-nunjucks">{{ node.getContent() }}</p>
diff --git a/test/fixtures/templates/nunjucks/paragraph.njk b/test/fixtures/templates/nunjucks/paragraph.njk
new file mode 100644
index 00000000..7fef5c6e
--- /dev/null
+++ b/test/fixtures/templates/nunjucks/paragraph.njk
@@ -0,0 +1 @@
+<p class="nunjucks">{{ node.getContent() | safe }}</p>
diff --git a/test/templates_test.js b/test/templates_test.js
index f15e572f..1fb6fc1b 100644
--- a/test/templates_test.js
+++ b/test/templates_test.js
@@ -265,5 +265,10 @@ Just a preamble.`, { safe: 'safe' })
       const $ = cheerio.load(doc.convert())
       expect($('#toc > ul.sectlevel1 > li')).to.have.length(0)
     })
+
+    it('should use a template directory (Nunjucks)', () => {
+      const html = asciidoctor.convert('Hello *world*', { template_dirs: [`${__dirname}/fixtures/templates/nunjucks`] })
+      expect(html).to.equal('<p class="nunjucks">Hello <strong>world</strong></p>')
+    })
   })
 })