Convert image paths

The PDF generator can't find the images as the paths are relate to where Hugo will place them on the website. Tweak the path to to point to the images. We need to convert the SVG files into something the next step can handle. Don't leave them in the static directory in case this results in them being exported to the website. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>

Convert image paths
The PDF generator can't find the images as the paths are relate to where Hugo will place them on the website. Tweak the path to to point to the images. We need to convert the SVG files into something the next step can handle. Don't leave them in the static directory in case this results in them being exported to the website. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
876f30c7 · Martyn Welch · Emanuele Aina · cc0b699c · 876f30c7
Commit 876f30c7 authored 4 years ago by Martyn Welch Committed by Emanuele Aina 4 years ago
--- a/scripts/hotdoc-html-2-pdf
+++ b/scripts/hotdoc-html-2-pdf
@@ -71,7 +71,7 @@ def update_local_links(elem, prefix):

        link.attrib['href'] = '%s/%s' % (prefix, href)

-def convert_svg_images(elem):
+def convert_images(elem, imgdir):
    imgs = elem.xpath('.//img')
    for img in imgs:
        src = img.attrib.get('src')
@@ -85,13 +85,14 @@ def convert_svg_images(elem):
        if not url_components.path:
            continue  # Local url, but doesn't need updating (eg #my-anchor)

-        if not url_components.path.endswith('.svg'):
-            continue
+        src = 'static' + os.path.abspath(src)
+        converted = src

-        converted = os.path.abspath(src) + '.pdf'
-        cmd = ['/usr/bin/rsvg-convert', src, '-f', 'pdf', '-o', converted]
+        if url_components.path.endswith('.svg'):
+            converted = imgdir + "/" + os.path.basename(src) + '.pdf'
+            cmd = ['/usr/bin/rsvg-convert', src, '-f', 'pdf', '-o', converted]

-        subprocess.check_call(cmd)
+            subprocess.check_call(cmd)

        img.attrib['src'] = converted

@@ -112,7 +113,9 @@ def transform(args):
    if args.remote_prefix:
        update_local_links(body, args.remote_prefix)

-    convert_svg_images(body)
+    inpath = os.path.dirname(args.input)
+    tmpdir_path = tempfile.mkdtemp(prefix=os.path.join(inpath, ''))
+    convert_images(body, tmpdir_path)

    output.append('<!DOCTYPE html>')
    output.append('<html lang="en">')