Add module Exporter.qbs

This module generates qbs modules from products, providing an interface
to them for use by external projects.

[ChangeLog] Added new module "Exporter.qbs" for creating qbs modules
from products.

Task-number: QBS-1231
Change-Id: I9f0cf04b441aaf279cf19a84fd94d97a8cea9de8
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

2 files changed, 23 insertions, 2 deletions

diff --git a/qbs-resources/imports/QbsLibrary.qbs b/qbs-resources/imports/QbsLibrary.qbs
index 986cc0318..7855a3f7b 100644
--- a/qbs-resources/imports/QbsLibrary.qbs
+++ b/qbs-resources/imports/QbsLibrary.qbs
@@ -1,10 +1,11 @@
 import qbs
 import qbs.FileInfo
+import qbs.Utilities
 
 QbsProduct {
     Depends { name: "cpp" }
     version: qbsversion.version
-    type: Qt.core.staticBuild ? "staticlibrary" : "dynamiclibrary"
+    type: libType
     targetName: (qbs.enableDebugCode && qbs.targetOS.contains("windows")) ? (name + 'd') : name
     destinationDirectory: FileInfo.joinPaths(project.buildDirectory,
         qbs.targetOS.contains("windows") ? "bin" : qbsbuildconfig.libDirName)
@@ -17,8 +18,12 @@ QbsProduct {
     cpp.visibility: "minimal"
     property bool visibilityType: Qt.core.staticBuild ? "static" : "dynamic"
     property string headerInstallPrefix: "/include/qbs"
+    property bool hasExporter: Utilities.versionCompare(qbs.version, "1.12") >= 0
+    property bool generateQbsModule: install && qbsbuildconfig.generateQbsModules && hasExporter
+    property stringList libType: [Qt.core.staticBuild ? "staticlibrary" : "dynamiclibrary"]
+    Depends { name: "Exporter.qbs"; condition: generateQbsModule }
     Group {
-        fileTagsFilter: product.type.concat("dynamiclibrary_symlink")
+        fileTagsFilter: libType.concat("dynamiclibrary_symlink")
             .concat(qbs.buildVariant === "debug" ? ["debuginfo_dll"] : [])
         qbs.install: install
         qbs.installSourceBase: destinationDirectory
@@ -30,6 +35,11 @@ QbsProduct {
         qbs.install: install
         qbs.installDir: qbsbuildconfig.importLibInstallDir
     }
+    Group {
+        fileTagsFilter: "Exporter.qbs.module"
+        qbs.install: install
+        qbs.installDir: FileInfo.joinPaths(qbsbuildconfig.qbsModulesBaseDir, product.name)
+    }
 
     Properties {
         condition: qbs.targetOS.contains("darwin")
@@ -41,6 +51,15 @@ QbsProduct {
         Depends { name: "cpp" }
         Depends { name: "Qt"; submodules: ["core"] }
 
+        Properties {
+            condition: product.hasExporter
+            prefixMapping: [{
+                prefix: product.sourceDirectory,
+                replacement: FileInfo.joinPaths(product.qbs.installPrefix,
+                                                product.headerInstallPrefix)
+            }]
+        }
+
         cpp.includePaths: [product.sourceDirectory]
         cpp.defines: product.visibilityType === "static" ? ["QBS_STATIC_LIB"] : []
     }
diff --git a/qbs-resources/modules/qbsbuildconfig/qbsbuildconfig.qbs b/qbs-resources/modules/qbsbuildconfig/qbsbuildconfig.qbs
index a1781400d..dd079a106 100644
--- a/qbs-resources/modules/qbsbuildconfig/qbsbuildconfig.qbs
+++ b/qbs-resources/modules/qbsbuildconfig/qbsbuildconfig.qbs
@@ -16,7 +16,9 @@ Module {
     property bool installManPage: qbs.targetOS.contains("unix")
     property bool installHtml: true
     property bool installQch: false
+    property bool generateQbsModules: installApiHeaders
     property string docInstallDir: "share/doc/qbs/html"
+    property string qbsModulesBaseDir: FileInfo.joinPaths(libDirName, "qbs", "modules")
     property string relativeLibexecPath: "../" + libexecInstallDir
     property string relativePluginsPath: "../" + libDirName
     property string relativeSearchPath: ".."