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Version Catalog Linter Gradle Plugin

build status Gradle Plugin Portal license

What does this plugin do?

This plugin helps to enforce a consistent formatting in Gradle version catalog TOML files. It provides two Gradle tasks:

  1. checkVersionCatalog looks for various formatting errors and reports all found errors sorted by line number. The check task automatically depends on checkVersionCatalog, so it is easy to add this plugin to continuous integration pipelines.
  2. formatVersionCatalog automatically formats the selected version catalog and fixes all errors found by checkVersionCatalog.

How to apply this plugin?

Add the plugin to your Gradle build file.

plugins {
    id("io.github.pemistahl.version-catalog-linter") version "1.0.3"
}

By default, the plugin looks for a file named libs.versions.toml within the directory gradle in the root build of your project. If you have named your version catalog differently or put it in another location, specify it as follows:

versionCatalogLinter {
    versionCatalogFile = file("some/location/another-catalog.toml")
}

If you have multiple version catalog files for different purposes, you need to register additional Gradle tasks for each additional version catalog. In order to create a custom check task, register a task with type VersionCatalogChecker. For a custom format task, register a task with type VersionCatalogFormatter.

import io.github.pemistahl.versioncatalog.linter.plugin.VersionCatalogChecker
import io.github.pemistahl.versioncatalog.linter.plugin.VersionCatalogFormatter

val customVersionCatalogLocation = "some/location/another-catalog.toml"

val checkCustomVersionCatalog by tasks.registering(VersionCatalogChecker::class) {
    versionCatalogFile = file(customVersionCatalogLocation)
}

val formatCustomVersionCatalog by tasks.registering(VersionCatalogFormatter::class) {
    versionCatalogFile = file(customVersionCatalogLocation)
}

tasks.check {
    dependsOn(checkCustomVersionCatalog)
}

Example

Below, you find examples for a totally messed up version catalog and how the output of the plugin's Gradle tasks looks like. Comments are currently filtered out in the output. It is planned to preserve comments in a later release.

Version catalog input

[libraries]
groovy = { group = "org.codehaus.groovy", name = "groovy", version.ref = "groovy" }
activation = { group = "com.sun.activation", name = "javax.activation", version = "1.2.0" }


jgoodiesDesktop = { group = "com.jgoodies", name = "jgoodies-desktop", version = "1.12.1" }
  jgoodiesFramework             = "com.jgoodies:jgoodies-framework:1.34.0"
jgoodiesDialogs = { group = "com.jgoodies", name = "jgoodies-dialogs", version = "1.20.0" }
antisamy = { group = "org.owasp.antisamy", name = "antisamy", version = "1.5.2" }
antlr = { module = "antlr:antlr",    version = "2.7.7" }
# This is a single-line comment.
apacheHttpClient = { group = "org.apache.httpcomponents", name = "httpclient", version = "4.5.14" }
apacheHttpCore = { group = "org.apache.httpcomponents", name = "httpcore", version = "4.4.16" }
apacheHttpMime = {name = "httpmime", version = "4.5.14", group = "org.apache.httpcomponents" } # This comment is for a key-value pair.

groovyTemplates = {name = "groovy-templates", group = "org.codehaus.groovy", version.ref = "groovy" }

[bundles]
groovy    = ["groovyTemplates", "groovy"]
 jgoodies = [
    "jgoodiesDesktop",
            "jgoodiesDialogs",
    "jgoodiesFramework",
]

[versions]


duns = "V0"
slf4j = { prefer = "1.7.25", strictly = "[1.7, 1.8[" }
   exact = "1.0"
groovy = "2.5.7"
axis =      "1.3"
ktlint = "12.0.2"
byteBuddy = "1.12.9"
springCore =   {require="4.2.9.RELEASE",reject=["4.3.18.RELEASE","4.3.16.RELEASE"]     }
cache2k = "2.0.0.Final"
dockerJava = "3.2.12"


[plugins]

   shadowJar =          { id = "com.github.johnrengelman.shadow", version = "8.1.1" }
ktlint = { version.ref = "ktlint", id = "org.jlleitschuh.gradle.ktlint" }

Output of task checkVersionCatalog

> Task :checkVersionCatalog FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':checkVersionCatalog'.
> Line 4: Entries are not sorted alphabetically in section '[libraries]'. Found key 'groovy' where 'activation' was expected.
  Line 5: Entries are not sorted alphabetically in section '[libraries]'. Found key 'activation' where 'antisamy' was expected.
  Line 8: Entries are not sorted alphabetically in section '[libraries]'. Found key 'jgoodiesDesktop' where 'antlr' was expected.
  Line 9: Entries are not sorted alphabetically in section '[libraries]'. Found key 'jgoodiesFramework' where 'apacheHttpClient' was expected.
  Line 9: Entry with key 'jgoodiesFramework' in section '[libraries]' must not have leading whitespace.
  Line 9: Entry with key 'jgoodiesFramework' in section '[libraries]' must not have two or more adjacent whitespace characters.
  Line 10: Entries are not sorted alphabetically in section '[libraries]'. Found key 'jgoodiesDialogs' where 'apacheHttpCore' was expected.
  Line 11: Entries are not sorted alphabetically in section '[libraries]'. Found key 'antisamy' where 'apacheHttpMime' was expected.
  Line 12: Entries are not sorted alphabetically in section '[libraries]'. Found key 'antlr' where 'groovy' was expected.
  Line 12: Entry with key 'antlr' in section '[libraries]' must not have two or more adjacent whitespace characters.
  Line 12: Use table notation instead of string notation for library with key 'antlr'. Required order: [module | group], name (, version(.ref))
  Line 14: Entries are not sorted alphabetically in section '[libraries]'. Found key 'apacheHttpClient' where 'groovyTemplates' was expected.
  Line 15: Entries are not sorted alphabetically in section '[libraries]'. Found key 'apacheHttpCore' where 'jgoodiesDesktop' was expected.
  Line 16: Attributes of library with key 'apacheHttpMime' are not sorted correctly. Required order: [module | group], name (, version(.ref))
  Line 16: Entries are not sorted alphabetically in section '[libraries]'. Found key 'apacheHttpMime' where 'jgoodiesDialogs' was expected.
  Line 18: Attributes of library with key 'groovyTemplates' are not sorted correctly. Required order: [module | group], name (, version(.ref))
  Line 18: Entries are not sorted alphabetically in section '[libraries]'. Found key 'groovyTemplates' where 'jgoodiesFramework' was expected.
  Line 21: Bundle with key 'groovy' must be indented with each library on a separate line preceded by four whitespace characters.
  Line 21: Libraries of bundle with key 'groovy' are not sorted alphabetically. Found library 'groovy' where 'groovyTemplates' was expected.
  Line 21: Libraries of bundle with key 'groovy' are not sorted alphabetically. Found library 'groovyTemplates' where 'groovy' was expected.
  Lines 22-26: Bundle with key 'jgoodies' must be indented with each library on a separate line preceded by four whitespace characters.
  Lines 22-26: Entry with key 'jgoodies' in section '[bundles]' must not have leading whitespace.
  Line 31: Entries are not sorted alphabetically in section '[versions]'. Found key 'duns' where 'axis' was expected.
  Line 32: Attributes of version with key 'slf4j' are not sorted correctly. Required order: strictly, require, prefer, reject
  Line 32: Entries are not sorted alphabetically in section '[versions]'. Found key 'slf4j' where 'byteBuddy' was expected.
  Line 33: Entries are not sorted alphabetically in section '[versions]'. Found key 'exact' where 'cache2k' was expected.
  Line 33: Entry with key 'exact' in section '[versions]' must not have leading whitespace.
  Line 33: Entry with key 'exact' in section '[versions]' must not have two or more adjacent whitespace characters.
  Line 34: Entries are not sorted alphabetically in section '[versions]'. Found key 'groovy' where 'dockerJava' was expected.
  Line 35: Entries are not sorted alphabetically in section '[versions]'. Found key 'axis' where 'duns' was expected.
  Line 35: Entry with key 'axis' in section '[versions]' must not have two or more adjacent whitespace characters.
  Line 36: Entries are not sorted alphabetically in section '[versions]'. Found key 'ktlint' where 'exact' was expected.
  Line 37: Entries are not sorted alphabetically in section '[versions]'. Found key 'byteBuddy' where 'groovy' was expected.
  Line 38: Entries are not sorted alphabetically in section '[versions]'. Found key 'springCore' where 'ktlint' was expected.
  Line 38: Entry with key 'springCore' in section '[versions]' must not have two or more adjacent whitespace characters.
  Line 39: Entries are not sorted alphabetically in section '[versions]'. Found key 'cache2k' where 'slf4j' was expected.
  Line 40: Entries are not sorted alphabetically in section '[versions]'. Found key 'dockerJava' where 'springCore' was expected.
  Line 45: Entries are not sorted alphabetically in section '[plugins]'. Found key 'shadowJar' where 'ktlint' was expected.
  Line 45: Entry with key 'shadowJar' in section '[plugins]' must not have leading whitespace.
  Line 45: Entry with key 'shadowJar' in section '[plugins]' must not have two or more adjacent whitespace characters.
  Line 46: Attributes of plugin with key 'ktlint' are not sorted correctly. Required order: id, version(.ref)
  Line 46: Entries are not sorted alphabetically in section '[plugins]'. Found key 'ktlint' where 'shadowJar' was expected.

Output of task formatVersionCatalog

[versions]
axis = "1.3"
byteBuddy = "1.12.9"
cache2k = "2.0.0.Final"
dockerJava = "3.2.12"
duns = "V0"
exact = "1.0"
groovy = "2.5.7"
ktlint = "12.0.2"
slf4j = { strictly = "[1.7, 1.8[", prefer = "1.7.25" }
springCore = { require = "4.2.9.RELEASE", reject = [ "4.3.16.RELEASE", "4.3.18.RELEASE" ] }

[libraries]
activation = { group = "com.sun.activation", name = "javax.activation", version = "1.2.0" }
antisamy = { group = "org.owasp.antisamy", name = "antisamy", version = "1.5.2" }
antlr = { group = "antlr", name = "antlr", version = "2.7.7" }
apacheHttpClient = { group = "org.apache.httpcomponents", name = "httpclient", version = "4.5.14" }
apacheHttpCore = { group = "org.apache.httpcomponents", name = "httpcore", version = "4.4.16" }
apacheHttpMime = { group = "org.apache.httpcomponents", name = "httpmime", version = "4.5.14" }
groovy = { group = "org.codehaus.groovy", name = "groovy", version.ref = "groovy" }
groovyTemplates = { group = "org.codehaus.groovy", name = "groovy-templates", version.ref = "groovy" }
jgoodiesDesktop = { group = "com.jgoodies", name = "jgoodies-desktop", version = "1.12.1" }
jgoodiesDialogs = { group = "com.jgoodies", name = "jgoodies-dialogs", version = "1.20.0" }
jgoodiesFramework = { group = "com.jgoodies", name = "jgoodies-framework", version = "1.34.0" }

[bundles]
groovy = [
    "groovy",
    "groovyTemplates"
]
jgoodies = [
    "jgoodiesDesktop",
    "jgoodiesDialogs",
    "jgoodiesFramework"
]

[plugins]
ktlint = { id = "org.jlleitschuh.gradle.ktlint", version.ref = "ktlint" }
shadowJar = { id = "com.github.johnrengelman.shadow", version = "8.1.1" }