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Fixed diff on index files when a repository is empty

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This commit is contained in:
Abdelilah El Aissaoui 2022-04-07 19:19:21 +02:00
parent 685769a154
commit 5982c65c79
1 changed files with 18 additions and 4 deletions
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22
src/main/kotlin/app/git/DiffManager.kt
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@ -4,6 +4,7 @@ import app.di.HunkDiffGeneratorFactory
import app.di.RawFileManagerFactory
import app.exceptions.MissingDiffEntryException
import app.extensions.fullData
import app.extensions.isMerging
import app.git.diff.DiffResult
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
@ -17,6 +18,7 @@ import org.eclipse.jgit.revwalk.RevTree
import org.eclipse.jgit.revwalk.RevWalk
import org.eclipse.jgit.treewalk.AbstractTreeIterator
import org.eclipse.jgit.treewalk.CanonicalTreeParser
import org.eclipse.jgit.treewalk.EmptyTreeIterator
import org.eclipse.jgit.treewalk.FileTreeIterator
import org.eclipse.jgit.treewalk.filter.PathFilter
import java.io.ByteArrayOutputStream
@ -26,6 +28,8 @@ import javax.inject.Inject
class DiffManager @Inject constructor(
private val rawFileManagerFactory: RawFileManagerFactory,
private val hunkDiffGeneratorFactory: HunkDiffGeneratorFactory,
private val branchesManager: BranchesManager,
private val repositoryManager: RepositoryManager,
) {
suspend fun diffFormat(git: Git, diffEntryType: DiffEntryType): DiffResult = withContext(Dispatchers.IO) {
val byteArrayOutputStream = ByteArrayOutputStream()
@ -41,23 +45,33 @@ class DiffManager @Inject constructor(
if (diffEntryType is DiffEntryType.UnstagedDiff)
formatter.scan(oldTree, newTree)
diffEntry = when (diffEntryType) {
diffEntry = when (diffEntryType) {
is DiffEntryType.CommitDiff -> {
diffEntryType.diffEntry
}
is DiffEntryType.UncommitedDiff -> {
val statusEntry = diffEntryType.statusEntry
val cached = diffEntryType is DiffEntryType.StagedDiff
val firstDiffEntry = git.diff()
.setPathFilter(PathFilter.create(statusEntry.filePath))
.setCached(diffEntryType is DiffEntryType.StagedDiff)
.setCached(cached).apply {
val repositoryState = repositoryManager.getRepositoryState(git)
if (
branchesManager.currentBranchRef(git) == null &&
!repositoryState.isMerging &&
!repositoryState.isRebasing &&
cached
) {
setOldTree(EmptyTreeIterator()) // Required if the repository is empty
}
}
.call()
.firstOrNull()
?: throw MissingDiffEntryException("Diff entry not found")
firstDiffEntry
}
}
}
formatter.format(diffEntry)