65 lines
2.2 KiB
Kotlin
65 lines
2.2 KiB
Kotlin
package com.jetpackduba.gitnuro.git.log
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import com.jetpackduba.gitnuro.git.graph.GraphCommitList
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import com.jetpackduba.gitnuro.git.graph.GraphWalk
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.ensureActive
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import kotlinx.coroutines.withContext
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import org.eclipse.jgit.api.Git
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import org.eclipse.jgit.lib.Constants
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import org.eclipse.jgit.lib.Ref
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import org.eclipse.jgit.lib.Repository
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import javax.inject.Inject
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class GetLogUseCase @Inject constructor() {
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private var graphWalkCached: GraphWalk? = null
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suspend operator fun invoke(git: Git, currentBranch: Ref?, hasUncommitedChanges: Boolean, commitsLimit: Int) =
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withContext(Dispatchers.IO) {
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val commitList = GraphCommitList()
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val repositoryState = git.repository.repositoryState
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if (currentBranch != null || repositoryState.isRebasing) { // Current branch is null when there is no log (new repo) or rebasing
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val logList = git.log().setMaxCount(1).call().toList()
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val walk = GraphWalk(git.repository)
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walk.use {
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// Without this, during rebase conflicts the graph won't show the HEAD commits (new commits created
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// by the rebase)
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walk.markStart(walk.lookupCommit(logList.first()))
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walk.markStartAllRefs(Constants.R_HEADS)
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walk.markStartAllRefs(Constants.R_REMOTES)
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walk.markStartAllRefs(Constants.R_TAGS)
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if (hasUncommitedChanges)
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commitList.addUncommitedChangesGraphCommit(logList.first())
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commitList.source(walk)
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commitList.fillTo(commitsLimit)
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}
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ensureActive()
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}
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commitList.calcMaxLine()
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return@withContext commitList
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}
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private fun cachedGraphWalk(repository: Repository): GraphWalk {
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val graphWalkCached = this.graphWalkCached
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return if(graphWalkCached != null) {
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graphWalkCached
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} else {
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val newGraphWalk = GraphWalk(repository)
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this.graphWalkCached = newGraphWalk
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newGraphWalk
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}
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}
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} |