Pass link prefixes to external markup parsers

[Eisfunke]

Should close #5031.

This passes the current URL prefixes to external markup parsers as environment variables.

GITEA_PREFIX_SRC is the current link prefix in the src path tree, GITEA_PREFIX_RAW is the prefix for images in the raw path tree.

The raw prefix is obtained by string replacement. That's not quite elegant, but it's what markdown.go does, so I copied that.

I tested the change with Pandoc as markdown parser, and I was able to get links and images working using the environment variables.

Signed-off-by: Nicolas Lenz nicolas@eisfunke.com

[codecov-io]

Codecov Report

Merging #5201 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5201      +/-   ##
==========================================
- Coverage   37.49%   37.47%   -0.02%     
==========================================
  Files         310      310              
  Lines       45934    45934              
==========================================
- Hits        17223    17215       -8     
- Misses      26237    26242       +5     
- Partials     2474     2477       +3

Impacted Files	Coverage Δ
models/repo_indexer.go	44.49% <0%> (-3.39%)	⬇️

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[lunny]

After this merged so we can change the ini for example:

[markup.ascii]
ENABLED = false
FILE_EXTENSIONS = .adoc,.asciidoc
RENDER_COMMAND = "asciidoc --imagesdir=$GITEA_PREFIX_SRC --out-file=- -"
IS_INPUT_FILE = false

[Eisfunke]

After this merged so we can change the ini for example:

[markup.ascii]
ENABLED = false
FILE_EXTENSIONS = .adoc,.asciidoc
RENDER_COMMAND = "asciidoc --imagesdir=$GITEA_PREFIX_SRC --out-file=- -"
IS_INPUT_FILE = false

For images GITEA_PREFIX_RAW, not GITEA_PREFIX_SRC, should be used, I think.

[lunny]

[markup.ascii]
ENABLED = false
FILE_EXTENSIONS = .adoc,.asciidoc
RENDER_COMMAND = "asciidoc --imagesdir=$GITEA_PREFIX_RAW --out-file=- -"
IS_INPUT_FILE = false

It's not right you can config as above, $GITEA_PREFIX_RAW is blank, you have to write a shell script and use $GITEA_PREFIX_RAW in your script.

[Cellebyte]

[markup.asciidoc]
ENABLED = true
FILE_EXTENSIONS = .adoc,.asciidoc
RENDER_COMMAND = 'asciidoctor -b html5 -a imagesdir="$GITEA_PREFIX_RAW" -a relfileprefix="$GITEA_PREFIX_SRC" --out-file=- -'
IS_INPUT_FILE = false

The config is not working with commit ref:078c404c3b0f283a242ad93b6a2f4cabb2575410

[lunny]

@Cellebyte Yes, it will not except you create a shell script and save that command there.

[Cellebyte]

@lunny thanks so i should copy a simple wrapper script with $@ to asciidoc?
Do you have an example?

[lunny]

I mean you can create a script file such as convert.sh and copy your command there, i.e.

#!/bin/bash
asciidoctor -b html5 -a imagesdir="$GITEA_PREFIX_RAW" -a relfileprefix="$GITEA_PREFIX_SRC" --out-file=- -

[Cellebyte]

Have done that. Will test it thanks for the reply ;)

#!/bin/bash
asciidoctor -b html5 -a imagesdir="$GITEA_PREFIX_RAW/" -a relfileprefix="$GITEA_PREFIX_SRC/" --out-file=- $1 | sed 's/lang="en">//'

Need to use sed, don't know why this lang="en" appears.

[andreashaerter]

I tested the change with Pandoc as markdown parser, and I was able to get links and images working using the environment variables.

@Eisfunke Would you mind to share the used RENDER_COMMAND for pandoc? :-)

[garyritchie]

Sounds like this might close #3025 - can anyone confirm?

@Cellebyte did the shell script work in your case?

[Cellebyte]

Yes @garyritchie it worked very well. The only problem are svg images. But this is referenced in another Issue.

[garyritchie]

Thanks @Cellebyte !

Where should I put the script? I'll need to include it when I build my gitea-asciidoc docker image (based on gitea:1.8).

[Cellebyte]

@garyritchie

FROM gitea/gitea:1.8

RUN apk add --update --no-cache \
    ruby \
    sed \
    asciidoctor && \
    gem install --no-ri --no-rdoc coderay && \
    gem update --no-ri --no-rdoc asciidoctor && \
    gem cleanup && \
    rm -rf /tmp/* /var/cache/apk/*

COPY asciidoc.sh /usr/bin/asciidoc.sh
RUN chown 1000:1000 /usr/bin/asciidoc.sh && \
    chmod 0755 /usr/bin/asciidoc.sh

Thats my Dockerfile

[garyritchie]

Got it working, thanks!