add templating script

README.md

@@ -226,3 +226,48 @@ the current time. The device is configurable via a simple TornadoFX-based contro
 You can run a demo by executing `application/run` Gradle task.
 
 The graphs are displayed using [plotly.kt](https://github.com/mipt-npm/plotly.kt) library.
+
+## Templates
+
+**This feature required `kotlin` to be installed in your system. [Read more](https://kotlinlang.org/docs/command-line.html#install-the-compiler)**
+
+**You may run gradle task `generateKTStemplates` instead of raw launch, but it will work slowly. Sample `./gradlew generateKTStemplates`**
+
+This project supports generating of files from `.ktstemplate.` files. Current docs:
+
+### Using
+
+* Create file contains `.ktstemplate` in its name
+* Write variables **before** the first `H*` (starting with `#`) section
+* Launch `kotlin ${thisscriptname}` with required args
+
+#### File sample
+
+```markdown
+first = hello
+second = world
+
+# Sample
+
+This is sample of $first $second
+```
+
+Will have next result:
+
+```markdown
+# Sample
+
+This is sample of hello world
+```
+
+### Launch
+
+This script accept next args:
+
+`[...paths] [--plain] [--recursive]`
+
+Where:
+
+* `...paths` - Paths to the files-templates or folders with files-templates
+* `--plain` - will look only into the folders from `paths`
+* `--recursive` - (default) will look into the folders from `paths` and recursively in subfolders

build.gradle.kts

@@ -23,3 +23,11 @@ ksciencePublish {
 }
 
 readme.readmeTemplate = file("docs/templates/README-TEMPLATE.md")
+
+task("generateKTStemplates") {
+    doLast {
+        exec {
+            commandLine("kotlin", "ktstemplate_generator.kts")
+        }
+    }
+}

controls-constructor/README.ktstemplate.md

@@ -0,0 +1,25 @@
+package_group=space.kscience
+package_name=controls-constructor
+maven_url=https://maven.sciprog.center
+
+# Module controls-constructor
+
+A low-code constructor for composite devices simulation
+
+## Usage
+
+## Artifact:
+
+The Maven coordinates of this project are `$package_group:$package_name:0.3.0`.
+
+**Gradle Kotlin DSL:**
+```kotlin
+repositories {
+    maven("https://repo.kotlin.link")
+    mavenCentral()
+}
+
+dependencies {
+    implementation("$package_group:$package_name:0.3.0")
+}
+```

ktstemplate_generator.kts

@@ -0,0 +1,151 @@
+/**
+ * # Generating files from templates script
+ *
+ * ## Using
+ *
+ * * Create file contains `.ktstemplate` in its name
+ * * Write variables **before** the first H* (starting with `#`) section
+ * * Launch `kotlin ${thisscriptname}` with required args
+ *
+ * ### File sample
+ *
+ * ```markdown
+ * first = hello
+ * second = world
+ *
+ * # Sample
+ *
+ * This is sample of $first $second
+ * ```
+ *
+ * Will have next result:
+ *
+ * ```markdown
+ * # Sample
+ *
+ * This is sample of hello world
+ * ```
+ *
+ * ## Launch
+ *
+ * This script accept next args:
+ *
+ * `[...paths] [--plain] [--recursive]`
+ *
+ * Where:
+ *
+ * * `...paths` - Paths to the files-templates or folders with files-templates
+ * * `--plain` - will look only into the folders from `paths`
+ * * `--recursive` - (default) will look into the folders from `paths` and recursively in subfolders
+ */
+import kotlin.collections.LinkedHashSet
+import java.io.File
+
+val templateEnding = Regex("\\.ktstemplate(\\.[^\\.]*)*$")
+val templateOnlyEnding = Regex("\\.ktstemplate")
+val singleArgumentRegex = Regex("^[\\w\\d]+$")
+val splitterRegex = Regex("[ ]*=[ ]*")
+
+sealed interface Mode {
+    fun filesList(folder: File): Sequence<File>
+
+    data object Recursive : Mode {
+        override fun filesList(folder: File): Sequence<File> {
+            return sequence {
+                val folders = mutableListOf<File>()
+                folders.add(folder)
+                while (folders.isNotEmpty()) {
+                    val currentFolder = folders.removeAt(0)
+                    currentFolder.listFiles().toList().forEach {
+                        when {
+                            it.isFile -> yield(it)
+                            it.isDirectory -> folders.add(it)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    data object Plain : Mode {
+        override fun filesList(folder: File): Sequence<File> {
+            return sequence {
+                folder.listFiles().forEach {
+                    yield(it)
+                }
+            }
+        }
+    }
+}
+var mode: Mode = Mode.Recursive
+
+val folders = args.mapNotNull {
+    if (it.startsWith("-")) { // assume some arg
+        when (it) {
+            "--plain" -> mode = Mode.Plain
+            "--recursive" -> mode = Mode.Recursive
+            "--help" -> {
+                println("[...pathnames] [--recursive] [--plain]")
+                println("...pathnames - Pass any count of folder or files paths")
+                println("--recursive - (default) Use recursive visiting of folders for each path in pathnames")
+                println("--plain - (default) Use plain (non-recursive) visiting of folders for each path in pathnames")
+            }
+        }
+        null
+    } else {
+        File(it)
+    }
+}.ifEmpty {
+    listOf(File("./"))
+}
+
+fun String.replaceVariables(variables: Map<String, String>): String {
+    var currentLine = this
+    variables.forEach { (k, v) ->
+        currentLine = currentLine.replace("\${${k}}", v)
+        if (k.matches(singleArgumentRegex)) {
+            currentLine = currentLine.replace("\$${k}", v)
+        }
+    }
+    return currentLine
+}
+
+fun generateFromTemplate(folder: File, file: File) {
+    val targetFile = File(folder, file.name.replace(templateOnlyEnding, ""))
+
+    val variables = mutableMapOf<String, String>()
+    var writeVariables = true
+    var text = ""
+
+    file.readLines().forEach { line ->
+        when {
+            writeVariables && line.startsWith("#") -> {
+                writeVariables = false
+            }
+            writeVariables -> {
+                val splitted = line.split(splitterRegex)
+                if (splitted.size > 1) {
+                    val k = splitted[0]
+                    val v = splitted[1].replaceVariables(variables)
+                    variables[k] = v
+                }
+                return@forEach
+            }
+        }
+        text += line.let {
+            line.replaceVariables(variables) + "\n"
+        }
+    }
+    targetFile.writeText(text)
+    println("${targetFile.absolutePath} has been recreated")
+}
+
+if (args.none { it == "--help" }) {
+    folders.forEach { folder ->
+        mode.filesList(folder).forEach { file ->
+            if (file.name.contains(templateEnding)) {
+                generateFromTemplate(file.parentFile, file)
+            }
+        }
+    }
+}