import qbs.File import qbs.FileInfo import qbs.TextFile /** This module generates 'i18n.pro' artifact, which then acts as an input for 'lupdate' program, which in turn produces translation files, which are compiled by 'lrelease' program into 'qm' files, which can be loaded by an application. */ Module { Depends { name: "Qt.core" } additionalProductTypes: ["i18n"] /* Unfortunately you can not simply add empty files to the product, cause 'Qt.core' module has a rule, which calls 'lrelease' on every 'ts' file in the product and 'lrelease' triggers error if these files are empty. Additionaly 'lupdate' also triggers errors, when parsing 'pro' file. Instead this property can be used to create new translation file. */ property stringList additionalTranslations: [] // Explicitly trigger build even if build a product property bool update: false // Build with legacy way though .pro file property bool buildWithPro: true property string lupdateName: "lupdate" Rule { condition: update && buildWithPro multiplex: true inputs: ["i18n.hpp", "i18n.src", "i18n.ui", "i18n.res", "i18n.ts"] prepare: { var proCmd = new JavaScriptCommand(); proCmd.description = 'generating ' + output.filePath; proCmd.highlight = 'codegen'; proCmd.sourceCode = function() { var f = new TextFile(output.filePath, TextFile.WriteOnly); try { f.writeLine("lupdate_only {"); if (inputs["i18n.hpp"] !== undefined) for (var i = 0; i < inputs["i18n.hpp"].length; i++) f.writeLine("HEADERS += " + FileInfo.relativePath(product.sourceDirectory, inputs["i18n.hpp"][i].filePath)); f.writeLine(""); if (inputs["i18n.src"] !== undefined) for (var i = 0; i < inputs["i18n.src"].length; i++) f.writeLine("SOURCES += " + FileInfo.relativePath(product.sourceDirectory, inputs["i18n.src"][i].filePath)); f.writeLine(""); if (inputs["i18n.ui"] !== undefined) for (var i = 0; i < inputs["i18n.ui"].length; i++) f.writeLine("FORMS += " + FileInfo.relativePath(product.sourceDirectory, inputs["i18n.ui"][i].filePath)); f.writeLine(""); // lupdate processes QML files that are listed in the .qrc file if (inputs["i18n.res"] !== undefined) for (var i = 0; i < inputs["i18n.res"].length; i++) f.writeLine("RESOURCES += " + FileInfo.relativePath(product.sourceDirectory, inputs["i18n.res"][i].filePath)); f.writeLine("}"); f.writeLine(""); if (inputs["i18n.ts"] !== undefined) for (var i = 0; i < inputs["i18n.ts"].length; i++) f.writeLine("TRANSLATIONS += " + FileInfo.relativePath(product.sourceDirectory, inputs["i18n.ts"][i].filePath)); for (var i = 0; i < product.i18n.additionalTranslations.length; i++) { var targetDirectory = product.sourceDirectory + "/" + FileInfo.path(product.i18n.additionalTranslations[i]); if (!File.exists(targetDirectory)) console.error("Directory '" + targetDirectory + "' does not exists. Please create it."); f.writeLine("TRANSLATIONS += " + product.i18n.additionalTranslations[i]); } } finally { f.close(); } } return [proCmd]; } Artifact { filePath: product.sourceDirectory + "/" + product.name + ".i18n.pro" fileTags: ["i18n.pro"] } } Rule { condition: buildWithPro inputs: ["i18n.pro"] prepare: { var lupdateName = product.i18n.lupdateName; var cmdLupdate = new Command(product.Qt.core.binPath + '/' + lupdateName, ["-verbose", input.filePath]); cmdLupdate.description = "Invoking '" + lupdateName + "' program"; cmdLupdate.highlight = 'filegen'; var cmdClean = new JavaScriptCommand(); cmdClean.description = "Removing " + input.fileName; cmdClean.highlight = "filegen"; cmdClean.sourceCode = function() { File.remove(input.filePath); } return [cmdLupdate, cmdClean] } outputFileTags: ["i18n"] } Rule { condition: update && !buildWithPro multiplex: true inputs: ["i18n.hpp", "i18n.src", "i18n.ui", "i18n.ts"] prepare: { var proCmd = new JavaScriptCommand(); proCmd.description = 'generating ' + output.filePath; proCmd.highlight = 'codegen'; proCmd.sourceCode = function() { var f = new TextFile(output.filePath, TextFile.WriteOnly); try { // Since Qt 5.13 lupdate supports passing a project description in JSON file. For producing such a // description from .pro file we can use new tool lprodump. But tehnically we don't need it. We can // totally fake format. // JSON file structure: // Project ::= { // string projectFile // Name of the project file. (required) // string codec // Source code codec. Valid values are // // currently "utf-16" or "utf-8" (default). // string[] translations // List of .ts files of the project. (required) // string[] includePaths // List of include paths. // string[] sources // List of source files. (required) // string[] excluded // List of source files, which are // // excluded for translation. // Project[] subProjects // List of sub-projects. // } // It seems all we need are projectFile, sources and translations options. var sources = []; if (inputs["i18n.hpp"] !== undefined) for (var i = 0; i < inputs["i18n.hpp"].length; i++) sources.push(inputs["i18n.hpp"][i].filePath); if (inputs["i18n.src"] !== undefined) for (var i = 0; i < inputs["i18n.src"].length; i++) sources.push(inputs["i18n.src"][i].filePath); if (inputs["i18n.ui"] !== undefined) for (var i = 0; i < inputs["i18n.ui"].length; i++) sources.push(inputs["i18n.ui"][i].filePath); // lupdate processes QML files that are listed in the .qrc file if (inputs["i18n.res"] !== undefined) for (var i = 0; i < inputs["i18n.res"].length; i++) sources.push(inputs["i18n.res"][i].filePath); var translations = []; if (inputs["i18n.ts"] !== undefined) for (var i = 0; i < inputs["i18n.ts"].length; i++) translations.push(inputs["i18n.ts"][i].filePath); for (var i = 0; i < product.i18n.additionalTranslations.length; i++) { var targetDirectory = product.sourceDirectory + "/" + FileInfo.path(product.i18n.additionalTranslations[i]); if (!File.exists(targetDirectory)) console.error("Directory '" + targetDirectory + "' does not exists. Please create it."); translations.push(product.i18n.additionalTranslations[i]); } var project = { projectFile: "", // Looks like can be empty sources: sources.sort(), translations: translations.sort() }; f.write(JSON.stringify([project], null, 2)); } finally { f.close(); } } return [proCmd]; } Artifact { filePath: product.sourceDirectory + "/" + product.name + ".i18n.json" fileTags: ["i18n.json"] } } Rule { condition: !buildWithPro inputs: ["i18n.json"] prepare: { var lupdateName = product.i18n.lupdateName; var cmdLupdate = new Command(product.Qt.core.binPath + '/' + lupdateName, ["-verbose", "-project", input.filePath]); cmdLupdate.description = "Invoking '" + lupdateName + "' program"; cmdLupdate.highlight = 'filegen'; var cmdClean = new JavaScriptCommand(); cmdClean.description = "Removing " + input.fileName; cmdClean.highlight = "filegen"; cmdClean.sourceCode = function() { File.remove(input.filePath); } return [cmdLupdate, cmdClean] } outputFileTags: ["i18n"] } }