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How to add Jacoco plugin to TOML version catalog f...
# gradle
h
How to add Jacoco plugin to TOML version catalog file Instead of 
id("jacoco")
in the plugins section of build.gradle I would like to use 
alias(libs.plugins.jacoco)
e
for the record, 
id("foo")
is actually 
id("org.gradle.foo")
when dealing with built-in plugins
c
Not sure if this is the same in this case, but when applying convention plugins from the version catalog, the version you should use is 
unspecified
h
I have a Kotln project and was using jacoco without needing to specify a version for it. I'll try what you suggested above see if that works. I'll try 
unspecified
as well.
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org.gradle.api.GradleException: Error resolving plugin [id: 'org.gradle.jacoco', version: 'unspecified']
c
Because it's a gradle built-in plugin, you don't have to specify a version in the 
plugins
block. However, it's mandatory to always specify a version in the version catalog, even if it's a built-in plugin. 
unspecified
works for convention plugins, I don't know if it works for built-in plugins
h
Well it was worth trying but it doesn't work I put it like this in the toml file.
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jacoco = { id = "org.gradle.jacoco", version = "unspecified"}
should I use verseion.ref ?
e
if you want type-safety, all the built-in plugins have generated accessors, so
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plugins {
    jacoco
}
just works in the Kotlin DSL
h
Okay so some plugins could be loaded from version catalogs and other just directly defined in my kotlin DSL gradle file.
c
Yes
e
if the plugin name contains non-identifier characters, you may need to use backticks, e.g.
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plugins {
    `kotlin-dsl`
}
(you could write ``jacoco`` too but there's no need to)
h
Meaning I don't need to alias for kotlin?
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[plugins]
kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlinVersion" }
and then just
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plugins {
    `kotlin`
}
like this or whithout the backticks? Instead of
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plugins {
   alias(libs.plugins.kotlin)
}
e
no, Kotlin is not a built-in plugin
Gradle does have 
kotlin-dsl
and 
embedded-kotlin
built-in, but those are different than 
org.jetbrains.kotlin.*
h
I'm using a spring boot project and transforming it to version catalog. I'm not sure what the kotlin-dsl plugin is for.
e
for writing your own Gradle plugins
h
Oh okay it's nice to see that I do get syntax completion in the plugin section..
e
I was just giving an example. there's lots of other built-in Gradle plugins with dashes in their names, e.g. 
java-library
h
Yes saw that and Intellij is giving syntax completion and adding those backticks to it for me.
v
unspecified
is an actual version. If you have to use 
unspecified
for your convention plugins @CLOVIS, then just because that is the version you configured in the build for those convention plugins. In this case "configured" by not configuring explicitly, but keeping the default value which is "unspecified" but otherwise not a magic string, but a version like any other. đŸ˜‰
c
I can't decide if that's better or worse
v
đŸ¤·
Actually, the version you put there is probably meaningless if the convention plugin is coming from an included build or 
buildSrc
. Because things from included builds usually take precedence over declared versions, so you could also use 
_
as version or any other String you like.
c
Nope, it's not… I tried to put stuff like 
1.0
and it doesn't work. Only 
unspecified
is accepted.
v
When it comes from an included build? I just tried and it works perfectly fine.
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