cannot load such file -- kindlegen on Linux

[abelsromero]

Following on asciidoctor/asciidoctor-maven-examples#77.
The issue still appears with alpha.11 building with maven and the gem, even on Linux.
For the gem build I am running asciidoctor -b epub3 -r asciidoctor-epub3 -a ebook-format=kf8 spine.adoc.

As another sad note, the workarround to call the maven build setting the envar KINDLEGEN=$(which kindlegen), does not work with alpha.11, it did with alpha.10.

Ruby environemnt
Already installe Ruby 2.6.4 (ruby 2.6.4p104 (2019-08-28 revision 67798) [x86_64-linux])
Gem installed

• NOKOGIRI_USE_SYSTEM_LIBRARIES=1 gem install asciidoctor-epub3 --pre

Maven environement
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: ---/.sdkman/candidates/maven/current
Java version: 11.0.6, vendor: AdoptOpenJDK, runtime: ---/.sdkman/candidates/java/11.0.6.hs-adpt
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "5.4.13-3-manjaro", arch: "amd64", family: "unix"

[slonopotamus]

Okay, there are two issues here:

1. We do not have kindlegen gem when running through Maven plugin. I think this will be resolved with Move kindlegen out of optional deps #270, but need to check.
2. I f*cked up environment variable name in alpha-11: 'KINDLEGEN' env var is not respected since #259 #269
3. kindlegen gem is not installed when you do gem install asciidoctor-epub3 --pre: Move kindlegen out of optional deps #270
4. Error message doesn't clearly explain how to solve this problem: resolves #268 provide a human-readable error message when we fail to find Kindlegen #271

[slonopotamus]

Does it work if you manually install kindlegen gem?

[slonopotamus]

Too early to close this yet.

[abelsalgadoromeroWD]

Does it work if you manually install kindlegen gem?

Do I need the gem? I have the kindlegen binary in my path.

[mojavelinux]

No, you shouldn't. The gem just installs the binary. In the upcoming release, the converter will detect it on your PATH if you don't set the KINDLEGEN env var (and the gem is not installed and we decide to make it optional). The alternative is to set the KINDLEGEN env var to the location of the binary.

[slonopotamus]

As I said, alpha-11 is unfortunately kinda broken WRT kindlegen path/env variable. I currently recommend either sticking to alpha-10 or installing kindlegen gem.

The alternative is to set the KINDLEGEN env var to the location of the binary.

I broke that in alpha-11 :( Already repaired it back on master, but still.

[abelsromero]

I broke that in alpha-11 :( Already repaired back on master, but still.

haha 😆 shit happens to us all, don't be to hard on yourself. Moreover, it's alpha after all...

Just let me know when you think is ready to test, I can install the gem from master to test snapshots if necessary 👍

PS: applogies for the account crossing. Alwasy forget to switch accouts when I am with the work machine.

[slonopotamus]

Okay, #276 was merged, I believe this bug can now be closed.

@abelsromero it would be great if you could test that master branch now works for you.

[abelsromero]

Will do! thx. If not today, tomorrow afternoon I can come with news

[slonopotamus]

@abelsromero okay, waiting for feedback from you. If everything's OK, I'll roll out alpha-12.

[abelsromero]

master branch working fine using Ruby in my Linux and Windows8.1 👍

Only issue was that on Windows nokogiri does not support Ruby 2.7 and had to install 2.6.

[slonopotamus]

@abelsromero Thanks for your feedback!

Only issue was that on Windows nokogiri does not support Ruby 2.7 and had to install 2.6.

Yeah, we're waiting for sparklemotion/nokogiri#1961.

[abelsromero]

Yeah, we're waiting for sparklemotion/nokogiri#1961.

Does this mean this fix is blocked untill next nokogiri version is released?

[slonopotamus]

@abelsromero until that Nokogiri issue is fixed, we do not have Ruby-2.7 support on Windows. It doesn't block anything else.

To be more exact, the sequence is:

1. Nokogiri makes new release with Ruby-2.7 support
2. gepub upgrades to new Nokogiri (Update Nokogiri to 1.11.0 when ready  skoji/gepub#93) and makes a new release
3. asciidoctor-epub3 upgrades to new gepub

[flavorjones]

Nokogiri release candidate v1.11.0.rc1 has been released with precompiled native libraries for Windows and Ruby 2.7. Please give it a whirl and let me know if you have any problems.