PijulLog.kt
/**
* Dracon - An IntelliJ-Pijul integration.
* Copyright 2021 JonathanxD <jhrldev@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.github.jonathanxd.dracon.log
import com.github.jonathanxd.dracon.revision.PijulRevisionNumber
import com.google.gson.*
import com.intellij.openapi.vcs.FileStatus
import org.apache.commons.codec.digest.DigestUtils
import org.apache.commons.lang.StringEscapeUtils
import java.io.Serializable
import java.nio.charset.Charset
import java.nio.file.Path
import java.time.ZonedDateTime
import java.time.format.DateTimeFormatterBuilder
import java.time.format.ResolverStyle
import java.time.temporal.ChronoField
data class Author(val name: String?, val fullName: String?, val email: String?): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class PijulLog(val entries: List<PijulLogEntry>)
data class PijulLogEntry(
val changeHash: String,
val message: String,
val date: ZonedDateTime,
val authors: List<Author>,
val dependencies: List<Dependency>,
val hunks: List<Hunk>
): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
val PijulLogEntry.asSha1Hash: String get() = DigestUtils.sha1Hex(this.changeHash)
val PijulLogEntry.revision: PijulRevisionNumber get() = PijulRevisionNumber(this.changeHash, this.date)
// Dependency
data class Dependency(
val id: IntOrAsterisk,
val type: DependencyType,
val hash: String
): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
sealed class IntOrAsterisk: Serializable
/**
* Only appears in dependencies of [extra-known type][DependencyType.EXTRA_KNOWN_DEPENDENCY].
*/
object Asterisk : IntOrAsterisk(), Serializable {
private const val serialVersionUID: Long = 1L
override fun toString(): String = "*"
}
/**
* Appears in dependencies of [regular type][DependencyType.REGULAR_DEPENDENCY] and [change type][DependencyType.CHANGE_DEPENDENCY].
*/
data class IndexInt(val index: Int) : IntOrAsterisk(), Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
enum class DependencyType: Serializable {
/**
* Regular dependency.
*/
REGULAR_DEPENDENCY,
/**
* Change dependency.
*/
CHANGE_DEPENDENCY,
/**
* Extra known "context" changes.
*/
EXTRA_KNOWN_DEPENDENCY,
/**
* Unknown dependency type.
*/
UNKNOWN;
companion object {
private const val serialVersionUID: Long = 1L
}
}
// Hunk
sealed class Hunk: Serializable {
abstract val hunkNumber: Int
abstract val type: HunkType
abstract val context: Context?
abstract val mode: Mode?
abstract val meta: Meta?
abstract val flags: List<Flag>
}
interface HunkWithPath {
val resolvedPath: String
fun resolvePath(root: Path): Path =
root.resolve(this.resolvedPath)
}
interface HunkWithEncoding {
val encoding: Encoding
}
data class FileAddHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.FILE_ADDITION,
val path: Filename,
val rootPath: FileDir,
val lines: List<LineChange>,
override val encoding: Encoding,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag> = emptyList(),
override val context: Context?
): Hunk(), HunkWithPath, HunkWithEncoding, Serializable {
override val resolvedPath: String
get() =
when {
this.rootPath.dir == "/" -> this.path.name
this.rootPath.dir.endsWith("/") -> (this.rootPath + this.path).fullPath
this.rootPath.dir.isEmpty() -> this.path.name
else -> (this.rootPath + this.path).fullPath
}
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class FileDelHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.FILE_DELETION,
val path: FilePath,
val inode: Double?,
val lines: List<LineChange>,
override val encoding: Encoding,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, HunkWithEncoding, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class FileUnDelHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.FILE_UN_DELETION,
val path: FilePath,
val inode: Double?,
val lines: List<LineChange>,
override val encoding: Encoding,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, HunkWithEncoding, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class MoveHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.FILE_MOVE,
val older: FilePath,
val new: FilePath,
val inode: Double?,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, Serializable {
override val resolvedPath: String
get() = this.new.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class EditHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.FILE_EDIT,
val path: FilePath,
val startLine: Int,
val inode: Double?,
val lines: List<LineChange>,
override val encoding: Encoding,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, HunkWithEncoding, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class ReplacementHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.REPLACEMENT,
val path: FilePath,
val startLine: Int,
val inode: Double?,
val lines: List<LineChange>,
override val encoding: Encoding,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, HunkWithEncoding, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class NameConflictHunk(
override val hunkNumber: Int,
override val type: HunkType,
val path: FilePath,
val inode: Double?,
val deletedNames: List<String>,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class OrderConflictHunk(
override val hunkNumber: Int,
override val type: HunkType,
val path: FilePath,
val index: Int?, // ??
val inode: Double?,
val lines: List<LineChange>,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class ZombieResurrectHunk(
override val hunkNumber: Int,
override val type: HunkType = HunkType.ZOMBIE_RESURRECT,
val path: FilePath,
val line: Int,
val inode: Double?,
val lines: List<LineChange>,
override val mode: Mode?,
override val meta: Meta?,
override val flags: List<Flag>,
override val context: Context?
): Hunk(), HunkWithPath, Serializable {
override val resolvedPath: String
get() = this.path.fullPath
companion object {
private const val serialVersionUID: Long = 1L
}
}
/**
* Mode is ignored as it is not needed for this plugin work.
*
* However, we still read metadata and store them, as they are useful to keep changelog reading consistent.
*/
data class Mode(val plain: String): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
/**
* Meta is ignored as it is not needed for this plugin work.
*
* However, we still read metadata and store them, as they are useful to keep changelog reading consistent.
*/
data class Meta(val plain: String): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
/**
* Flag is ignored as it is not needed for this plugin work.
*
* However, we still read flags and store them, as they are useful to keep changelog reading consistent.
*/
data class Flag(val plain: String): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class Context(
val up: List<Double>,
val new: Range?,
val down: List<Double>
): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class Range(val start: Int, val end: Int): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
fun List<Double>.doublesAsSource() =
if(this.isEmpty()) "emptyList()"
else "listOf(${this.joinToString(separator = ", ") { it.toString() }})"
fun Range.intRangeAsSource() = "Range(${this.start}, ${this.end})"
enum class HunkType: Serializable {
FILE_ADDITION,
FILE_DELETION,
FILE_UN_DELETION,
FILE_MOVE,
FILE_EDIT,
REPLACEMENT,
SOLVING_NAME_CONFLICT,
UN_SOLVING_NAME_CONFLICT,
UNKNOWN_NAME_CONFLICT_RESOLUTION,
SOLVING_ORDER_CONFLICT,
UN_SOLVING_ORDER_CONFLICT,
UNKNOWN_ORDER_CONFLICT_RESOLUTION,
ZOMBIE_RESURRECT;
companion object {
private const val serialVersionUID: Long = 1L
}
}
data class LineChange(val type: LineChangeType, val data: String): Serializable {
companion object {
private const val serialVersionUID: Long = 1L
}
}
enum class LineChangeType(val symbol: String): Serializable {
ADD("+"),
DEL("-");
override fun toString(): String =
"${this.name}(${this.symbol})"
companion object {
private const val serialVersionUID: Long = 1L
fun fromSymbol(symbol: String): LineChangeType =
when (symbol) {
"+" -> ADD
"-" -> DEL
else -> throw IllegalArgumentException("Unknown change symbol: $symbol. Known symbols: +, -. For: ADD, DEL.")
}
}
}
val MESSAGE_PATTERN = Regex("message = '(.*)'\\n")
val MULTI_LINE_MESSAGE_PATTERN = Regex("message = '''(.*)'''", RegexOption.DOT_MATCHES_ALL)
val TIME_PATTERN = Regex("timestamp = '(.*)'\\n")
val AUTHORS_SECTION_PATTERN = Regex("\\[\\[authors\\]\\]\\n")
val AUTHOR_PATTERN = Regex("name = '(.*)'\\n?")
val DEPENDENCIES_SECTION_PATTERN = Regex("# Dependencies\\n")
val DEPENDENCY_PATTERN = Regex("\\[(\\d+|\\*)\\]([+ ])([A-Z0-9]+)\\n?")
val HUNK_SECTION_PATTERN = Regex("# Hunks\\n")
val HUNK_CONTEXT = Regex("up ((\\d+\\.\\d+ )*\\d+\\.\\d+)(, new \\d+:\\d+)?(, down ((\\d+\\.\\d+ )*\\d+\\.\\d+))?\\n?")
// Corner case: :D 9.1256 -> 4.12200:12305/9, B:BD 4.12200 -> 4.12200:12305/4
/**
* Flags are currently ignored by Dracon, as they are not required for the plugin work correctly.
*/
val FLAG_PATTERN = Regex("(([BFD]+:[BFD]+ [^\\n]+)|(:[BFD]+ [^\\n]+))\\n?")
fun String.parseChange(hash: String): PijulLogEntry {
val messageSingleLine = MESSAGE_PATTERN.find(this)?.groupValues?.get(1)
val messageMultiLine = MULTI_LINE_MESSAGE_PATTERN.find(this)?.groupValues?.get(1)
val timestamp = TIME_PATTERN.find(this)?.groupValues?.get(1)!!
val authorsSection = AUTHORS_SECTION_PATTERN.find(this)?.range?.endInclusive
val dependencySection = DEPENDENCIES_SECTION_PATTERN.find(this)?.range?.endInclusive
val hunkSection = HUNK_SECTION_PATTERN.find(this)?.range?.endInclusive
val authors = mutableListOf<Author>()
val dependencies = mutableListOf<Dependency>()
val hunks = mutableListOf<Hunk>()
val message = if (messageMultiLine != null) messageMultiLine else messageSingleLine
if (authorsSection != null) {
var lastFound: Int? = authorsSection
while (lastFound != null) {
val foundAuthor = AUTHOR_PATTERN.find(this, lastFound)
val foundAuthorGroup = foundAuthor?.groupValues?.get(1)
if (foundAuthorGroup != null) {
authors += Author(foundAuthorGroup, null, null)
lastFound = if (foundAuthor.range.last.endsInNewLine(this)) {
null
} else {
foundAuthor.range.last
}
} else {
lastFound = null
}
}
}
if (dependencySection != null) {
var lastFound: Int? = dependencySection
while (lastFound != null) {
val foundDependency = DEPENDENCY_PATTERN.find(this, lastFound)
if (foundDependency != null) {
val foundDependencyId = foundDependency.groupValues[1]
val foundDependencySeparator = foundDependency.groupValues[2]
val foundDependencyHash = foundDependency.groupValues[3]
val dependencyType = when {
foundDependencyId == "*" && foundDependencySeparator == " " -> DependencyType.EXTRA_KNOWN_DEPENDENCY
foundDependencyId.toIntOrNull() != null && foundDependencySeparator == "+" -> DependencyType.CHANGE_DEPENDENCY
foundDependencyId.toIntOrNull() != null && foundDependencySeparator == " " -> DependencyType.REGULAR_DEPENDENCY
else -> DependencyType.UNKNOWN
}
val intOrAsterisk = foundDependencyId.toIntOrNull()?.let(::IndexInt) ?: Asterisk
dependencies += Dependency(
intOrAsterisk,
dependencyType,
foundDependencyHash
)
lastFound = if (foundDependency.range.last.endsInNewLine(this)) {
null
} else {
foundDependency.range.last
}
} else {
lastFound = null
}
}
}
if (hunkSection != null) {
var lastFound: Int? = hunkSection
while (lastFound != null) {
if (lastFound == this.length)
break;
if (this[lastFound] == '\n') {
lastFound += 1
continue;
}
if (this.substringUntil(lastFound, '\n') == "\\\n") {
lastFound += 1
continue
}
var anyFound = false
val add = HunkAddPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (add != null) {
anyFound = true
lastFound += add.matchResult.range.last
val hunkNumber = add.changeNumber
val fileOrPath = add.fileName.parseFilename()
val rootPath = add.path.parseFileDir()
val encoding = add.encoding
val mode = add.mode?.trim()?.let(::Mode)
val meta = add.meta?.trim()?.let(::Meta)
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
val (lines, lastKnownLine) = this.readLineChanges(lastFound)
lastFound = lastKnownLine
hunks += FileAddHunk(
hunkNumber = hunkNumber,
path = fileOrPath,
rootPath = rootPath,
lines = lines,
meta = meta,
context = context,
mode = mode,
encoding = encoding
)
}
val remove = HunkDelPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (remove != null) {
anyFound = true
lastFound += remove.matchResult.range.last
val hunkNumber = remove.changeNumber
val path = remove.fileName.parseFilePath()
val inode = remove.inode
val encoding = remove.encoding
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += FileDelHunk(
hunkNumber = hunkNumber,
path = path,
inode = inode,
flags = flags,
lines = lines,
mode = null,
meta = null,
context = null,
encoding = encoding
)
}
val undel = HunkUnDelPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (undel != null) {
anyFound = true
lastFound += undel.matchResult.range.last
val hunkNumber = undel.changeNumber
val path = undel.fileName.parseFilePath()
val inode = undel.inode
val encoding = undel.encoding
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += FileUnDelHunk(
hunkNumber = hunkNumber,
path = path,
inode = inode,
flags = flags,
lines = lines,
mode = null,
meta = null,
context = null,
encoding = encoding
)
}
val move = HunkMovedPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (move != null) {
anyFound = true
lastFound += move.matchResult.range.last
val hunkNumber = move.changeNumber
val new = move.new.parseFilePath()
val old = move.old.parseFilePath()
val inode = move.inode
val meta = move.meta?.trim()?.let(::Meta)
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
hunks += MoveHunk(
hunkNumber = hunkNumber,
older = old,
new = new,
inode = inode,
flags = flags,
mode = null,
meta = meta,
context = context
)
}
val edit = HunkEditPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (edit != null) {
anyFound = true
lastFound += edit.matchResult.range.last
val hunkNumber = edit.changeNumber
val path = edit.file.parseFilePath()
val line = edit.line
val inode = edit.inode
val encoding = edit.encoding
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += EditHunk(
hunkNumber = hunkNumber,
path = path,
startLine = line,
inode = inode,
flags = flags,
mode = null,
meta = null,
lines = lines,
context = context,
encoding = encoding
)
}
val replacement = HunkReplacementPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (replacement != null) {
anyFound = true
lastFound += replacement.matchResult.range.last
val hunkNumber = replacement.changeNumber
val path = replacement.fileName.parseFilePath()
val line = replacement.line
val inode = replacement.inode
val encoding = replacement.encoding
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += ReplacementHunk(
hunkNumber = hunkNumber,
path = path,
startLine = line,
inode = inode,
flags = flags,
mode = null,
meta = null,
lines = lines,
context = context,
encoding = encoding
)
}
val nameConflict = HunkNameConflictPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (nameConflict != null) {
anyFound = true
lastFound += nameConflict.matchResult.range.last
val hunkNumber = nameConflict.changeNumber
val type = nameConflict.type
val path = nameConflict.fileName.parseFilePath()
val inode = nameConflict.inode
val deletedNames = nameConflict.deletedNames
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
hunks += NameConflictHunk(
hunkNumber = hunkNumber,
path = path,
type = type,
inode = inode,
deletedNames = deletedNames,
flags = flags,
mode = null,
meta = null,
context = context
)
}
val orderConflict = HunkOrderConflictPattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (orderConflict != null) {
anyFound = true
lastFound += orderConflict.matchResult.range.last
val hunkNumber = orderConflict.changeNumber
val type = orderConflict.type
val path = orderConflict.fileName.parseFilePath()
val pos = orderConflict.pos
val inode = orderConflict.inode
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += OrderConflictHunk(
hunkNumber = hunkNumber,
path = path,
index = pos,
type = type,
inode = inode,
lines = lines,
flags = flags,
mode = null,
meta = null,
context = context
)
}
val zombieLines = HunkZombiePattern.matchEntire(this.substringUntil(lastFound, '\n'))
if (zombieLines != null) {
anyFound = true
lastFound += zombieLines.matchResult.range.last
val hunkNumber = zombieLines.changeNumber
val path = zombieLines.fileName.parseFilePath()
val line = zombieLines.pos
val inode = zombieLines.inode
val (flags, flagsLastKnownLine) = this.readFlags(lastFound)
lastFound = flagsLastKnownLine
val (context, stoppedLine) = this.tryReadContext(lastFound)
lastFound = stoppedLine
val (lines, linesLastKnownLine) = this.readLineChanges(lastFound)
lastFound = linesLastKnownLine
hunks += ZombieResurrectHunk(
hunkNumber = hunkNumber,
path = path,
line = line,
inode = inode,
lines = lines,
flags = flags,
mode = null,
meta = null,
context = context
)
}
if (!anyFound) {
lastFound = null
}
}
}
return PijulLogEntry(hash, message!!, timestamp.parseAsLocalDateTime(), authors, dependencies, hunks)
}
fun String.substringUntil(start: Int, char: Char, includeChar: Boolean = true) =
this.indexOf(char, start + 1).let {
if (it == -1) {
this.substring(start)
} else {
this.substring(start, if (includeChar) it + 1 else it)
}
}
fun String.tryReadContext(start: Int): Pair<Context?, Int> {
val end = this.indexOf('\n', start + 1).let {
if (it == -1) this.length
else it
}
val text = this.substring(start, end).trim()
val foundContext = HUNK_CONTEXT.find(text)
if (foundContext != null) {
val up = foundContext.groupValues[1].split(" ").map { it.toDouble() }
val newText = foundContext.groupValues.getOrNull(3)
val downText = foundContext.groupValues.getOrNull(4)
val new = if (newText != null && newText.startsWith(", new ")) {
val range = newText.substring(", new ".length)
val rangeDivisor = range.indexOf(':')
val firstPart = range.substring(0 until rangeDivisor).toInt()
val secondPart = range.substring(rangeDivisor + 1).toInt()
Range(firstPart, secondPart)
} else {
null
}
val down = if (downText != null && downText.startsWith(", down ")) {
downText.substring(", down ".length).split(" ").map { it.toDouble() }
} else {
emptyList()
}
return Context(up, new, down) to end
} else {
return null to start
}
}
fun String.readFlags(start: Int): Pair<List<Flag>, Int> {
val flags = mutableListOf<Flag>()
var lastKnownLine: Int = start
var lastLine: Int? = start
while (lastLine != null) {
if (this[lastLine] == '\n') {
lastLine += 1
lastKnownLine = lastLine
continue;
}
val foundFlag = FLAG_PATTERN.matchEntire(this.substringUntil(lastLine, '\n'))
if (foundFlag != null) {
lastKnownLine = lastLine + foundFlag.range.last
val flag = foundFlag.groupValues[1]
flags + Flag(flag)
lastLine = if (lastKnownLine.endsInNewLine(this)) {
null
} else {
lastKnownLine
}
} else {
lastLine = null
}
}
return flags to lastKnownLine
}
/**
*
* # Line changes format
*
* Prefix:
* - `-`: Removed.
* - `+`: Added.
* - `\`: Previous line didn't end with a new line.
*/
fun String.readLineChanges(start: Int): Pair<List<LineChange>, Int> {
val changes = mutableListOf<LineChange>()
var lastKnownLine: Int = start
var lastLine: Int? = start
while (lastLine != null) {
if (lastLine == this.length) {
break;
}
if (this[lastLine] == '\n') {
lastLine += 1;
lastKnownLine = lastLine
continue;
}
val computeLastLine = {
if (lastKnownLine.endsInNewLine(this)
&& !lookupFor(lastKnownLine, '+', ' ')
&& !lookupFor(lastKnownLine, '-', ' ')
) {
null
} else {
lastKnownLine
}
}
val lineStr = this.substringUntil(lastLine, '\n')
val isEndOfStream = {
lastKnownLine + 1 == this.length
}
if (lineStr.startsWith("+ ") || lineStr.startsWith("- ")) {
lastKnownLine = lastLine + lineStr.lastIndex
val symbol = lineStr[0].toString()
val data = lineStr.substring(2)
changes += LineChange(LineChangeType.fromSymbol(symbol), data)
lastLine = computeLastLine()
} else if ((lineStr == "\\\n" || (lineStr == "\\" && isEndOfStream())) && changes.isNotEmpty()) {
lastKnownLine = lastLine + lineStr.lastIndex
if (isEndOfStream()) {
lastKnownLine += 1
}
val last = changes.removeLast()
changes += last.copy(data = last.data.substringBeforeLast("\n"))
lastLine = computeLastLine()
} else {
// DEPRECATED: This is not how it works, a single slash (\) after any change
// means that the last line does not have a new line character, thus
// we need to remove it.
// Single \ is used sometimes to represent an end of a change.
if (lastKnownLine < this.length && this[lastKnownLine] == '\\' && lastKnownLine + 1 < this.length) {
lastKnownLine += 1
}
lastLine = null
}
}
return changes to lastKnownLine
}
private fun String.lookupFor(from: Int, charA: Char, charB: Char): Boolean {
for (i in from..this.lastIndex) {
if (this[i] == '\n') continue
if (i + 1 >= this.length) return false
return this[i] == charA && this[i + 1] == charB
}
return false
}
private fun Int.endsInNewLine(originalText: String): Boolean =
this + 1 < originalText.length && originalText[this + 1] == '\n'
val RFC3339_FORMATTER = DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd'T'HH:mm:ss")
.appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true)
.appendOffsetId()
.toFormatter()
.withResolverStyle(ResolverStyle.LENIENT)
fun String.parseAsLocalDateTime(): ZonedDateTime {
return ZonedDateTime.parse(this, RFC3339_FORMATTER)
}
fun FileDelHunk.fileDelHunkAsSource() = "FileDelHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"inode = ${this.inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun FileAddHunk.fileAddHunkAsSource() = "FileAddHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"rootPath = \"$rootPath\",\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun FileUnDelHunk.fileUnDelHunkAsSource() = "FileUnDelHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"inode = ${this.inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun MoveHunk.moveHunkAsSource() = "MoveHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"older = \"$older\",\n" +
"new = \"$new\",\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun EditHunk.editHunkAsSource() = "EditHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"startLine = $startLine,\n" +
"inode = ${inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun ReplacementHunk.replacementHunkAsSource() = "ReplacementHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"startLine = $startLine,\n" +
"inode = ${inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun NameConflictHunk.nameConflictHunkAsSource() = "NameConflictHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"inode = ${inode?.toString() ?: "null"},\n" +
"deletedNames = ${deletedNames.stringListAsSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun OrderConflictHunk.orderConflictHunkAsSource() = "OrderConflictHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"index = ${index?.toString() ?: "null"},\n" +
"inode = ${inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun ZombieResurrectHunk.zombieResurrectHunkAsSource() = "ZombieResurrectHunk(\n" +
"hunkNumber = $hunkNumber,\n" +
"type = ${this.type.hunkTypeAsSource()},\n" +
"path = \"$path\",\n" +
"inode = ${inode?.toString() ?: "null"},\n" +
"lines = ${lines.asSource()},\n" +
"meta = ${meta?.metaAsSource() ?: "null"},\n" +
"flags = ${flags.flagsAsSource()},\n" +
"context = ${context?.contextAsSource() ?: "null"},\n" +
")"
fun HunkType.hunkTypeAsSource() = "HunkType.${this.name}"
fun List<LineChange>.asSource() =
if(this.isEmpty()) "emptyList()"
else "listOf(${this.joinToString(separator = ", ") { it.lineChangeAsSource() }})"
fun List<Flag>.flagsAsSource() =
if(this.isEmpty()) "emptyList()"
else "listOf(${this.joinToString(separator = ", ") { it.flagsAsSource() }})"
fun Meta.metaAsSource() = "Meta(\"${StringEscapeUtils.escapeJava(plain)}\")"
fun Flag.flagsAsSource() = "Flag(\"${StringEscapeUtils.escapeJava(plain)}\")"
fun List<String>.stringListAsSource() =
if (this.isEmpty()) "emptyList()"
else "listOf(\"${this.joinToString(separator = ", ") { StringEscapeUtils.escapeJava(it) }}\")"
fun Context.contextAsSource() = "Context(" +
"up = ${this.up.doublesAsSource()}, " +
"new = ${this.new?.intRangeAsSource() ?: "null"}, " +
"down = ${this.down.doublesAsSource()}" +
")"
fun LineChange.lineChangeAsSource() = "LineChange(" +
"type = LineChangeType.${type.name}, " +
"data = \"${StringEscapeUtils.escapeJava(data)}\"" +
")"
val HunkWithPath.status: FileStatus
get() = (this as Hunk).status
val Hunk.status: FileStatus
get() = when(this) {
is FileAddHunk -> FileStatus.ADDED
is FileDelHunk -> FileStatus.DELETED
is ReplacementHunk -> FileStatus.MODIFIED
is EditHunk -> FileStatus.MODIFIED
is MoveHunk -> FileStatus.SUPPRESSED
else -> FileStatus.UNKNOWN
}