# ResolutionStrategy

interface ResolutionStrategy(source)

Defines the strategies around dependency resolution. For example, forcing certain dependency versions, substitutions, conflict resolutions or snapshot timeouts.

Examples:

    plugins {
        id 'java' // so that there are some configurations
    }

    configurations.all {
      resolutionStrategy {
        // fail eagerly on version conflict (includes transitive dependencies)
        // e.g. multiple different versions of the same dependency (group and name are equal)
        failOnVersionConflict()

        // prefer modules that are part of this build (multi-project or composite build) over external modules
        preferProjectModules()

        // force certain versions of dependencies (including transitive)
        //  *append new forced modules:
        force 'asm:asm-all:3.3.1', 'commons-io:commons-io:1.4'
        //  *replace existing forced modules with new ones:
        forcedModules = ['asm:asm-all:3.3.1']

        // add dependency substitution rules
        dependencySubstitution {
          substitute module('org.gradle:api') using project(':api')
          substitute project(':util') using module('org.gradle:util:3.0')
        }

        // cache dynamic versions for 10 minutes
        cacheDynamicVersionsFor 10*60, 'seconds'
        // don't cache changing modules at all
        cacheChangingModulesFor 0, 'seconds'
      }
    }

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#### Since

1.0-milestone-6

## Types

SortOrder
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enum SortOrder
Defines the sort order for components and artifacts produced by the configuration.

## Functions

activateDependencyLocking
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abstract fun activateDependencyLocking(): ResolutionStrategy
Activates dependency locking support in Gradle.
cacheChangingModulesFor
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abstract fun cacheChangingModulesFor(value: Int, units: String)
Sets the length of time that changing modules will be cached, with units expressed as a String.
abstract fun cacheChangingModulesFor(value: Int, units: TimeUnit)
Sets the length of time that changing modules will be cached.
cacheDynamicVersionsFor
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abstract fun cacheDynamicVersionsFor(value: Int, units: String)
Sets the length of time that dynamic versions will be cached, with units expressed as a String.
abstract fun cacheDynamicVersionsFor(value: Int, units: TimeUnit)
Sets the length of time that dynamic versions will be cached.
capabilitiesResolution
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abstract fun capabilitiesResolution(action: Action<in CapabilitiesResolution>): ResolutionStrategy
Configures the capabilities resolution strategy.
componentSelection
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abstract fun componentSelection(action: Action<in ComponentSelectionRules>): ResolutionStrategy
The componentSelection block provides rules to filter or prevent certain components from appearing in the resolution result.
deactivateDependencyLocking
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abstract fun deactivateDependencyLocking(): ResolutionStrategy
Deactivates dependency locking support in Gradle.
dependencySubstitution
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abstract fun dependencySubstitution(action: Action<in DependencySubstitutions>): ResolutionStrategy
Configures the set of dependency substitution rules for this configuration.
disableDependencyVerification
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abstract fun disableDependencyVerification(): ResolutionStrategy
Deactivates dependency verification for this configuration.
eachDependency
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abstract fun eachDependency(rule: Action<in DependencyResolveDetails>): ResolutionStrategy
Adds a dependency substitution rule that is triggered for every dependency (including transitive) when the configuration is being resolved.
enableDependencyVerification
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abstract fun enableDependencyVerification(): ResolutionStrategy
Enabled dependency verification for this configuration.
failOnChangingVersions
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abstract fun failOnChangingVersions(): ResolutionStrategy
If this method is called, Gradle will make sure that no changing version participates in resolution.
failOnDynamicVersions
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abstract fun failOnDynamicVersions(): ResolutionStrategy
If this method is called, Gradle will make sure that no dynamic version was used in the resulting dependency graph.
failOnNonReproducibleResolution
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abstract fun failOnNonReproducibleResolution(): ResolutionStrategy
Configures Gradle to fail the build is the resolution result is expected to be unstable, that is to say that it includes dynamic versions or changing versions and therefore the result may change depending on when the build is executed.
failOnVersionConflict
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abstract fun failOnVersionConflict(): ResolutionStrategy
In case of conflict, Gradle by default uses the newest of conflicting versions.
force
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abstract fun force(notations: Array<Any>): ResolutionStrategy
Allows forcing certain versions of dependencies, including transitive dependencies.
getCapabilitiesResolution
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abstract fun getCapabilitiesResolution(): CapabilitiesResolution
Returns the capabilities resolution strategy.
getComponentSelection
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abstract fun getComponentSelection(): ComponentSelectionRules
Returns the currently configured version selection rules object.
getDependencySubstitution
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abstract fun getDependencySubstitution(): DependencySubstitutions
Returns the set of dependency substitution rules that are set for this configuration.
getForcedModules
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abstract fun getForcedModules(): Set<ModuleVersionSelector>
Returns currently configured forced modules.
getUseGlobalDependencySubstitutionRules
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abstract fun getUseGlobalDependencySubstitutionRules(): Property<Boolean>
Gradle implicitly registers dependency substitution rules for all configurations in the whole build tree to find projects in other included builds.
preferProjectModules
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abstract fun preferProjectModules()
Gradle can resolve conflicts purely by version number or prioritize project dependencies over binary.
setForcedModules
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abstract fun setForcedModules(moduleVersionSelectorNotations: Array<Any>): ResolutionStrategy
Allows forcing certain versions of dependencies, including transitive dependencies.
sortArtifacts
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abstract fun sortArtifacts(sortOrder: ResolutionStrategy.SortOrder)
Specifies the ordering for resolved artifacts.