diff options
| author | Akira Yokosawa <akiyks@gmail.com> | 2021-12-29 20:45:29 +0900 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2022-02-09 17:00:41 -0700 |
| commit | ecf5fb58cdcd93b9cf555b95da4ef73b1297de4c (patch) | |
| tree | a1e7c4db3e69c0f838b881878cff6d7177513f9c /Documentation/sphinx | |
| parent | c9edbe1eb98248c290d93aa2ffdc30cab5e2e62c (diff) | |
docs: sphinx/kfigure.py: Add check of 'dot -Tpdf'
To prevent any regression on existing build systems, limit the
fallback of converting DOT -> raster PDF only when both of the
following conditions are met.
o dot(1) doesn't support -Tpdf
o rsvg-convert(1) is not found
While we are here, add kernellog.verbose messages related to
rsvg-convert, 'dot -Tpdf', and 'dot -Tsvg' commands.
Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e76f61e1-7366-ba00-b119-8ea6a2499861@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/sphinx')
| -rw-r--r-- | Documentation/sphinx/kfigure.py | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/Documentation/sphinx/kfigure.py b/Documentation/sphinx/kfigure.py index 955e3ec5de5a..77b0d15dba31 100644 --- a/Documentation/sphinx/kfigure.py +++ b/Documentation/sphinx/kfigure.py @@ -51,6 +51,7 @@ import os from os import path import subprocess from hashlib import sha1 +import re from docutils import nodes from docutils.statemachine import ViewList from docutils.parsers.rst import directives @@ -111,6 +112,8 @@ def pass_handle(self, node): # pylint: disable=W0613 # Graphviz's dot(1) support dot_cmd = None +# dot(1) -Tpdf should be used +dot_Tpdf = False # ImageMagick' convert(1) support convert_cmd = None @@ -165,7 +168,7 @@ def setupTools(app): This function is called once, when the builder is initiated. """ - global dot_cmd, convert_cmd, rsvg_convert_cmd # pylint: disable=W0603 + global dot_cmd, dot_Tpdf, convert_cmd, rsvg_convert_cmd # pylint: disable=W0603 kernellog.verbose(app, "kfigure: check installed tools ...") dot_cmd = which('dot') @@ -174,6 +177,16 @@ def setupTools(app): if dot_cmd: kernellog.verbose(app, "use dot(1) from: " + dot_cmd) + + try: + dot_Thelp_list = subprocess.check_output([dot_cmd, '-Thelp'], + stderr=subprocess.STDOUT) + except subprocess.CalledProcessError as err: + dot_Thelp_list = err.output + pass + + dot_Tpdf_ptn = b'pdf' + dot_Tpdf = re.search(dot_Tpdf_ptn, dot_Thelp_list) else: kernellog.warn(app, "dot(1) not found, for better output quality install " "graphviz from https://www.graphviz.org") @@ -185,9 +198,17 @@ def setupTools(app): "ImageMagick (https://www.imagemagick.org)") if rsvg_convert_cmd: kernellog.verbose(app, "use rsvg-convert(1) from: " + rsvg_convert_cmd) + kernellog.verbose(app, "use 'dot -Tsvg' and rsvg-convert(1) for DOT -> PDF conversion") + dot_Tpdf = False else: - kernellog.verbose(app, "rsvg-convert(1) not found, " - "falling back to raster image conversion") + kernellog.verbose(app, + "rsvg-convert(1) not found.\n" + " SVG -> PDF conversion by convert() can be poor quality.\n" + " Install librsvg (https://gitlab.gnome.org/GNOME/librsvg)") + if dot_Tpdf: + kernellog.verbose(app, "use 'dot -Tpdf' for DOT -> PDF conversion") + else: + kernellog.verbose(app, "use 'dot -Tsvg' and convert(1) for DOT -> PDF conversion") # integrate conversion tools @@ -277,11 +298,12 @@ def convert_image(img_node, translator, src_fname=None): if in_ext == '.dot': kernellog.verbose(app, 'convert DOT to: {out}/' + _name) - if translator.builder.format == 'latex': + if translator.builder.format == 'latex' and not dot_Tpdf: svg_fname = path.join(translator.builder.outdir, fname + '.svg') ok1 = dot2format(app, src_fname, svg_fname) ok2 = svg2pdf_by_rsvg(app, svg_fname, dst_fname) ok = ok1 and ok2 + else: ok = dot2format(app, src_fname, dst_fname) |