Enable tldr to format the output as a json

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+
+[*.{kt,kts,gradle}]
+indent_style = space
+indent_size = 2
+ij_kotlin_name_count_to_use_star_import = 2147483647
+ij_kotlin_name_count_to_use_star_import_for_members = 2147483647
+ij_kotlin_packages_to_use_import_on_demand =
+
+
+

.gitignore

@@ -1,3 +1,4 @@
 build
 /.gradle
 /.idea
+!.idea/fileTemplates/

README.md

@@ -91,6 +91,7 @@ upgrades (ex upgrading Firebase here also updates it in ...)
   passing a collapse of `com.careem.care` would result in collapsing updates
   of `com.careem.care:dep1` and `com.careem.care:dep2` to just
   `com.careem.care:*`. This flag is repeatable.
+* `-o, --output` - output type, you can pass `plain` or `json`, `plain` is the default argument
 
 ## Other Utilities
 

src/main/kotlin/com/careem/gradle/dependencies/effectFinder.kt

@@ -65,7 +65,7 @@ fun upgradeEffects(old: String, new: String, collapseKeys: List<String>): String
                     if (index > 0) {
                         appendLine()
                     }
-                    append("Changing ${effects.first.artifact} to ${effects.first.version} will also change:")
+                    append("Changing ${effects.first.artifact} to ${effects.first.version}${effects.first.alternativeVersion?.let { ", (changed from $it)"}} will also change:")
                     effects.second
                         .forEach { affectedDependency -> writeTree(affectedDependency, 1) }
                     appendLine()

src/main/kotlin/com/careem/gradle/dependencies/main.kt

@@ -20,6 +20,7 @@ package com.careem.gradle.dependencies
 
 import com.github.ajalt.clikt.core.CliktCommand
 import com.github.ajalt.clikt.parameters.arguments.argument
+import com.github.ajalt.clikt.parameters.options.default
 import com.github.ajalt.clikt.parameters.options.flag
 import com.github.ajalt.clikt.parameters.options.multiple
 import com.github.ajalt.clikt.parameters.options.option
@@ -38,14 +39,19 @@ class Tldr : CliktCommand(name = "dependency-diff-tldr") {
     help = "Collapse packages with a matching group under a group.*. Collapsing " +
         "will only occur if all version numbers match. (ex --collapse com.careem.ridehail --collapse com.careem.now)."
   ).multiple()
+  private val output by option(
+    "-o",
+    "--output",
+    help = "Output type, \"plain\" and \"json\" are supported"
+  ).default("plain")
 
   private val old by argument("old.txt").path(mustExist = true)
   private val new by argument("new.txt").path(mustExist = true)
 
   override fun run() {
     val oldContents = old.readText()
     val newContents = new.readText()
-    print(tldr(oldContents, newContents, collapse))
+    print(tldr(oldContents, newContents).toString(collapse, outputType = output.toOutputType()))
     if (sideEffects) {
       val upgradeEffects = upgradeEffects(oldContents, newContents, collapse)
       if (upgradeEffects.isNotEmpty()) {

src/main/kotlin/com/careem/gradle/dependencies/mismatched/main.kt

@@ -1,3 +1,19 @@
+/*
+* Copyright Careem, an Uber Technologies Inc. company
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
 @file:JvmName("MismatchedVersionFinder")
 package com.careem.gradle.dependencies.mismatched
 

src/main/kotlin/com/careem/gradle/dependencies/printer.kt

@@ -0,0 +1,114 @@
+/*
+* Copyright Careem, an Uber Technologies Inc. company
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.careem.gradle.dependencies
+enum class OutputType{
+    PLAIN, JSON
+}
+
+fun String.toOutputType(): OutputType = when(this){
+    "json" -> OutputType.JSON
+    else -> OutputType.PLAIN
+}
+
+
+fun VersionDifferences.toString(collapse: List<String>, outputType: OutputType): String {
+    return when(outputType){
+        OutputType.PLAIN -> writePlain(this, collapse)
+        OutputType.JSON -> writeJson(this, collapse)
+    }
+}
+
+private fun writePlain(versionDifferences: VersionDifferences, collapse: List<String>): String = buildString {
+    val (added, removed, upgraded) = versionDifferences
+    writeList("New Dependencies", added)
+    writeList("Removed Dependencies", removed, added.isNotEmpty())
+    writeList("Upgraded Dependencies", collapseDependencies(upgraded, collapse),
+        removed.isNotEmpty() || added.isNotEmpty())
+}
+
+private fun writeJson(versionDifferences: VersionDifferences, collapse: List<String>): String = buildString {
+    val (added, removed, upgraded) = versionDifferences
+    append("{")
+    writeJsonObject("new_dependencies", added, trailingComma = true)
+    writeJsonObject("removed_dependencies", removed,  trailingComma = true)
+    writeJsonObject("upgraded_dependencies", collapseDependencies(upgraded, collapse))
+    append("}")
+}
+
+private fun StringBuilder.writeList(title: String, list: List<VersionedDependency>, newLineBeforeTitle: Boolean = false) {
+    if (list.isNotEmpty()) {
+        if (newLineBeforeTitle) {
+            append("\n")
+        }
+        append(title)
+        append("\n")
+        list.forEach {
+            append(it.artifact)
+            if (it.version.isNotBlank()) {
+                append(":")
+                append(it.version)
+                it.alternativeVersion?.let { altVersion -> append(", (changed from $altVersion)") }
+            }
+            append("\n")
+        }
+    }
+}
+
+private fun StringBuilder.writeJsonObject(key: String, list: List<VersionedDependency>, trailingComma: Boolean = false) {
+    append("\"$key\":[")
+    if (list.isNotEmpty()) {
+        list.forEachIndexed { index, versionedDependency ->
+            append(writeJsonVersionedDependency(versionedDependency))
+            if(index + 1 < list.size){
+                append(",")
+            }
+        }
+    }
+    append("]")
+    if(trailingComma){
+        append(",")
+    }
+}
+
+private fun writeJsonVersionedDependency(versionedDependency: VersionedDependency): String {
+    return "{\"artifact\":\"${versionedDependency.artifact}\",\"version\":\"${versionedDependency.version}\",\"other_version\":\"${versionedDependency.alternativeVersion}\"}"
+}
+
+
+private fun collapseDependencies(
+    dependencies: List<VersionedDependency>,
+    collapses: List<String>
+): List<VersionedDependency> {
+    val add = mutableSetOf<VersionedDependency>()
+    val remove = mutableSetOf<VersionedDependency>()
+
+    collapses.forEach { collapse ->
+        val matchingToCollapse = dependencies.filter { it.artifact.startsWith(collapse) }
+        val versions = matchingToCollapse.map { it.version }.toSet().size
+        if (versions == 1) {
+            remove.addAll(matchingToCollapse)
+            add.add(matchingToCollapse[0].copy(artifact = collapse))
+        }
+    }
+
+    return if (add.isNotEmpty()) {
+        (dependencies - remove) + add
+    } else {
+        dependencies
+    }
+}
+

src/main/kotlin/com/careem/gradle/dependencies/treeTldr.kt

@@ -16,15 +16,8 @@
 
 package com.careem.gradle.dependencies
 
-fun tldr(old: String, new: String, collapse: List<String>): String {
-  val (added, removed, upgraded) = dependencyDifferences(old, new)
-
-  return buildString {
-    writeList("New Dependencies", added)
-    writeList("Removed Dependencies", removed, added.isNotEmpty())
-    writeList("Upgraded Dependencies", collapseDependencies(upgraded, collapse),
-      removed.isNotEmpty() || added.isNotEmpty())
-  }
+fun tldr(old: String, new: String): VersionDifferences {
+  return dependencyDifferences(old, new)
 }
 
 fun dependencyDifferences(old: String, new: String): VersionDifferences {
@@ -68,30 +61,7 @@ private fun extractDependencies(deps: String): Set<VersionedDependency> {
     .toSet()
 }
 
-private fun collapseDependencies(
-  dependencies: List<VersionedDependency>,
-  collapses: List<String>
-): List<VersionedDependency> {
-  val add = mutableSetOf<VersionedDependency>()
-  val remove = mutableSetOf<VersionedDependency>()
-
-  collapses.forEach { collapse ->
-    val matchingToCollapse = dependencies.filter { it.artifact.startsWith(collapse) }
-    val versions = matchingToCollapse.map { it.version }.toSet().size
-    if (versions == 1) {
-      remove.addAll(matchingToCollapse)
-      add.add(matchingToCollapse[0].copy(artifact = collapse))
-    }
-  }
-
-  return if (add.isNotEmpty()) {
-    (dependencies - remove) + add
-  } else {
-    dependencies
-  }
-}
-
-data class VersionedDependency(val artifact: String, val version: String) {
+data class VersionedDependency(val artifact: String, val version: String, val alternativeVersion: String? = null) {
   val group by lazy { artifact.substringBefore(':').trim() }
 }
 data class VersionDifferences(
@@ -115,7 +85,7 @@ private fun partitionDifferences(
       removedVersion != null -> {
         mutableRemovedMap.remove(artifact)
         upgrades.add(
-          VersionedDependency(artifact, "$version, (changed from $removedVersion)"))
+          VersionedDependency(artifact, version, alternativeVersion = removedVersion))
       }
       else -> {
         additions.add(VersionedDependency(artifact, version))
@@ -133,20 +103,4 @@ private fun partitionDifferences(
   )
 }
 
-private fun StringBuilder.writeList(title: String, list: List<VersionedDependency>, newLineBeforeTitle: Boolean = false) {
-  if (list.isNotEmpty()) {
-    if (newLineBeforeTitle) {
-      append("\n")
-    }
-    append(title)
-    append("\n")
-    list.forEach {
-      append(it.artifact)
-      if (it.version.isNotBlank()) {
-        append(":")
-        append(it.version)
-      }
-      append("\n")
-    }
-  }
-}
+

src/test/fixtures/local_project_update/expected_json.json

@@ -0,0 +1 @@
+{"new_dependencies":[],"removed_dependencies":[],"upgraded_dependencies":[{"artifact":"androidx.activity:activity","version":"1.5.1","other_version":"1.2.4"},{"artifact":"androidx.annotation:annotation-experimental","version":"1.3.0","other_version":"1.1.0"},{"artifact":"androidx.appcompat:appcompat","version":"1.5.1","other_version":"1.4.1"},{"artifact":"androidx.appcompat:appcompat-resources","version":"1.5.1","other_version":"1.4.1"},{"artifact":"androidx.core:core","version":"1.9.0","other_version":"1.7.0"},{"artifact":"androidx.core:core-ktx","version":"1.9.0","other_version":"1.7.0"},{"artifact":"androidx.databinding:viewbinding","version":"7.3.0","other_version":"7.1.2"},{"artifact":"androidx.emoji2:emoji2","version":"1.2.0","other_version":"1.0.0"},{"artifact":"androidx.emoji2:emoji2-views-helper","version":"1.2.0","other_version":"1.0.0"},{"artifact":"androidx.lifecycle:lifecycle-common","version":"2.5.1","other_version":"2.4.0"},{"artifact":"androidx.lifecycle:lifecycle-livedata-core","version":"2.5.1","other_version":"2.3.1"},{"artifact":"androidx.lifecycle:lifecycle-process","version":"2.4.1","other_version":"2.4.0"},{"artifact":"androidx.lifecycle:lifecycle-runtime","version":"2.5.1","other_version":"2.4.0"},{"artifact":"androidx.lifecycle:lifecycle-viewmodel","version":"2.5.1","other_version":"2.3.1"},{"artifact":"androidx.lifecycle:lifecycle-viewmodel-savedstate","version":"2.5.1","other_version":"2.3.1"},{"artifact":"androidx.resourceinspection:resourceinspection-annotation","version":"1.0.1","other_version":"1.0.0"},{"artifact":"androidx.savedstate:savedstate","version":"1.2.0","other_version":"1.1.0"},{"artifact":"androidx.startup:startup-runtime","version":"1.1.1","other_version":"1.0.0"},{"artifact":"com.google.android.material:material","version":"1.6.1","other_version":"1.5.0"},{"artifact":"com.squareup.okhttp3:okhttp","version":"4.10.0","other_version":"4.9.3"},{"artifact":"com.squareup.okhttp3:okhttp-dnsoverhttps","version":"4.10.0","other_version":"4.9.3"},{"artifact":"com.squareup.okio:okio","version":"3.2.0","other_version":"3.0.0"},{"artifact":"com.squareup.okio:okio-jvm","version":"3.2.0","other_version":"3.0.0"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib","version":"1.7.10","other_version":"1.6.10"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-common","version":"1.7.10","other_version":"1.6.10"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-jdk7","version":"1.7.10","other_version":"1.6.10"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-jdk8","version":"1.7.10","other_version":"1.6.10"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-android","version":"1.6.4","other_version":"1.6.0"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-bom","version":"1.6.4","other_version":"1.6.0"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-core","version":"1.6.4","other_version":"1.6.0"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm","version":"1.6.4","other_version":"1.6.0"}]}

src/test/fixtures/noop_update/expected_json.json

@@ -0,0 +1 @@
+{"new_dependencies":[],"removed_dependencies":[],"upgraded_dependencies":[]}

src/test/fixtures/project_update/expected_json.json

@@ -0,0 +1 @@
+{"new_dependencies":[{"artifact":"androidx.concurrent:concurrent-futures","version":"1.0.0","other_version":"null"},{"artifact":"androidx.constraintlayout:constraintlayout","version":"2.0.1","other_version":"null"},{"artifact":"androidx.constraintlayout:constraintlayout-solver","version":"2.0.1","other_version":"null"},{"artifact":"androidx.documentfile:documentfile","version":"1.0.0","other_version":"null"},{"artifact":"androidx.dynamicanimation:dynamicanimation","version":"1.0.0","other_version":"null"},{"artifact":"androidx.emoji2:emoji2","version":"1.0.0","other_version":"null"},{"artifact":"androidx.emoji2:emoji2-views-helper","version":"1.0.0","other_version":"null"},{"artifact":"androidx.legacy:legacy-support-core-utils","version":"1.0.0","other_version":"null"},{"artifact":"androidx.lifecycle:lifecycle-process","version":"2.4.0","other_version":"null"},{"artifact":"androidx.lifecycle:lifecycle-viewmodel-savedstate","version":"2.3.1","other_version":"null"},{"artifact":"androidx.localbroadcastmanager:localbroadcastmanager","version":"1.0.0","other_version":"null"},{"artifact":"androidx.print:print","version":"1.0.0","other_version":"null"},{"artifact":"androidx.resourceinspection:resourceinspection-annotation","version":"1.0.0","other_version":"null"},{"artifact":"androidx.startup:startup-runtime","version":"1.0.0","other_version":"null"},{"artifact":"androidx.tracing:tracing","version":"1.0.0","other_version":"null"},{"artifact":"com.google.guava:listenablefuture","version":"1.0","other_version":"null"},{"artifact":"com.squareup.okio:okio-jvm","version":"3.0.0","other_version":"null"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-bom","version":"1.6.0","other_version":"null"}],"removed_dependencies":[],"upgraded_dependencies":[{"artifact":"androidx.activity:activity","version":"1.2.4","other_version":"1.0.0"},{"artifact":"androidx.annotation:annotation","version":"1.3.0","other_version":"1.1.0"},{"artifact":"androidx.annotation:annotation-experimental","version":"1.1.0","other_version":"1.0.0"},{"artifact":"androidx.appcompat:appcompat","version":"1.4.1","other_version":"1.2.0"},{"artifact":"androidx.appcompat:appcompat-resources","version":"1.4.1","other_version":"1.2.0"},{"artifact":"androidx.arch.core:core-runtime","version":"2.1.0","other_version":"2.0.0"},{"artifact":"androidx.core:core","version":"1.7.0","other_version":"1.3.2"},{"artifact":"androidx.core:core-ktx","version":"1.7.0","other_version":"1.3.2"},{"artifact":"androidx.customview:customview","version":"1.1.0","other_version":"1.0.0"},{"artifact":"androidx.databinding:viewbinding","version":"7.1.2","other_version":"7.0.0-alpha03"},{"artifact":"androidx.drawerlayout:drawerlayout","version":"1.1.1","other_version":"1.0.0"},{"artifact":"androidx.fragment:fragment","version":"1.3.6","other_version":"1.1.0"},{"artifact":"androidx.lifecycle:lifecycle-common","version":"2.4.0","other_version":"2.1.0"},{"artifact":"androidx.lifecycle:lifecycle-livedata-core","version":"2.3.1","other_version":"2.0.0"},{"artifact":"androidx.lifecycle:lifecycle-runtime","version":"2.4.0","other_version":"2.1.0"},{"artifact":"androidx.lifecycle:lifecycle-viewmodel","version":"2.3.1","other_version":"2.1.0"},{"artifact":"androidx.savedstate:savedstate","version":"1.1.0","other_version":"1.0.0"},{"artifact":"androidx.versionedparcelable:versionedparcelable","version":"1.1.1","other_version":"1.1.0"},{"artifact":"com.google.android.material:material","version":"1.5.0","other_version":"1.2.1"},{"artifact":"com.jakewharton.timber:timber","version":"5.0.1","other_version":"4.7.1"},{"artifact":"com.squareup.okhttp3:okhttp","version":"4.9.3","other_version":"4.9.0"},{"artifact":"com.squareup.okhttp3:okhttp-dnsoverhttps","version":"4.9.3","other_version":"4.9.0"},{"artifact":"com.squareup.okio:okio","version":"3.0.0","other_version":"2.9.0"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib","version":"1.6.10","other_version":"1.4.21"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-common","version":"1.6.10","other_version":"1.4.21"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-jdk7","version":"1.6.10","other_version":"1.4.10"},{"artifact":"org.jetbrains.kotlin:kotlin-stdlib-jdk8","version":"1.6.10","other_version":"1.4.10"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-android","version":"1.6.0","other_version":"1.4.2"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-core","version":"1.6.0","other_version":"1.4.2"},{"artifact":"org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm","version":"1.6.0","other_version":"1.4.2"},{"artifact":"org.jetbrains:annotations","version":"20.1.0","other_version":"16.0.1"}]}

src/test/kotlin/com/careem/gradle/dependencies/FixturesTest.kt

@@ -1,3 +1,19 @@
+/*
+* Copyright Careem, an Uber Technologies Inc. company
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
 package com.careem.gradle.dependencies
 
 import com.google.common.truth.Truth.assertThat
@@ -15,7 +31,16 @@ class FixturesTest(private val fixtureDir: File) {
     val before = fixtureDir.resolve("before.txt").readText()
     val after = fixtureDir.resolve("after.txt").readText()
     val expected = fixtureDir.resolve("expected.txt").readText()
-    val actual = tldr(before, after, emptyList())
+    val actual = tldr(before, after).toString(collapse = emptyList(), outputType = OutputType.PLAIN)
+    assertThat(actual).isEqualTo(expected)
+  }
+
+  @Test
+  fun testTldrJson() {
+    val before = fixtureDir.resolve("before.txt").readText()
+    val after = fixtureDir.resolve("after.txt").readText()
+    val expected = fixtureDir.resolve("expected_json.json").readText()
+    val actual = tldr(before, after).toString(collapse = emptyList(), outputType = OutputType.JSON)
     assertThat(actual).isEqualTo(expected)
   }