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>

8 files changed, 187 insertions, 0 deletions

diff --git a/tests/auto/blackbox/testdata/exports-qbs/consumer.cpp b/tests/auto/blackbox/testdata/exports-qbs/consumer.cpp
new file mode 100644
index 000000000..25338b611
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/consumer.cpp
@@ -0,0 +1,6 @@
+void helper();
+
+int main()
+{
+    helper();
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/consumer.qbs b/tests/auto/blackbox/testdata/exports-qbs/consumer.qbs
new file mode 100644
index 000000000..57f2adc15
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/consumer.qbs
@@ -0,0 +1,14 @@
+import qbs
+
+CppApplication {
+    name: "consumer"
+    qbsSearchPaths: "default/install-root/usr/qbs"
+    property string outTag: "cpp"
+    Depends { name: "MyLib" }
+    Depends { name: "MyTool" }
+    files: ["consumer.cpp"]
+    Group {
+        files: ["helper.cpp.in"]
+        fileTags: ["cpp.in"]
+    }
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/exports-qbs.qbs b/tests/auto/blackbox/testdata/exports-qbs/exports-qbs.qbs
new file mode 100644
index 000000000..b84c44b5f
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/exports-qbs.qbs
@@ -0,0 +1,120 @@
+import qbs
+import qbs.FileInfo
+
+import "helper.js" as Helper
+
+Project {
+    property string installPrefix: "/usr"
+    Product {
+        name: "local"
+        Export {
+            property bool dummy
+            Depends { name: "cpp" }
+            cpp.includePaths: ["/somelocaldir/include"]
+        }
+    }
+
+    CppApplication {
+        name: "MyTool"
+        consoleApplication: true
+        property stringList toolTags: ["MyTool.tool"]
+        Depends { name: "Exporter.qbs" }
+        Exporter.qbs.artifactTypes: ["installable", "blubb"]
+        files: ["tool.cpp"]
+        qbs.installPrefix: project.installPrefix
+        Group {
+            files: ["helper.js"]
+            qbs.install: true
+            qbs.installDir: "qbs/modules/MyTool"
+        }
+
+        Group {
+            fileTagsFilter: ["application"]
+            qbs.install: true
+            qbs.installDir: "bin"
+            fileTags: toolTags
+        }
+        Group {
+            fileTagsFilter: ["Exporter.qbs.module"]
+            qbs.installDir: "qbs/modules/MyTool"
+        }
+
+        Export {
+            property stringList toolTags: product.toolTags
+            property stringList outTags: [importingProduct.outTag]
+            Rule {
+                inputs: Helper.toolInputs()
+                explicitlyDependsOn: toolTags
+
+                outputFileTags: parent.outTags
+                outputArtifacts: [{
+                        filePath: FileInfo.completeBaseName(input.fileName),
+                        fileTags: product.MyTool.outTags
+                }]
+                prepare: {
+                    var cmd = new Command(explicitlyDependsOn["MyTool.tool"][0].filePath,
+                                          [input.filePath, output.filePath]);
+                    cmd.description = input.fileName + " -> " + output.fileName;
+                    return [cmd];
+                }
+            }
+        }
+    }
+
+    DynamicLibrary {
+        name: "MyLib"
+        multiplexByQbsProperties: ["buildVariants"]
+        aggregate: false
+        qbs.buildVariants: ["debug", "release"]
+        qbs.installPrefix: project.installPrefix
+        Depends { name: "cpp" }
+        Depends { name: "Exporter.qbs" }
+        Exporter.qbs.fileName: name + "_" + qbs.buildVariant + ".qbs"
+        Exporter.qbs.excludedDependencies: ["local"]
+        Exporter.qbs.additionalContent: "    condition: qbs.buildVariant === '"
+                                        + qbs.buildVariant + "'"
+        property string headersInstallDir: "include"
+        cpp.defines: ["MYLIB_BUILD"]
+        cpp.variantSuffix: qbs.buildVariant === "debug" ? "d" : ""
+        Properties {
+            condition: qbs.targetOS.contains("darwin")
+            bundle.isBundle: false
+        }
+        files: ["mylib.cpp"]
+        Group {
+            name: "API headers"
+            files: ["mylib.h"]
+            qbs.install: true
+            qbs.installDir: headersInstallDir
+        }
+        Group {
+            fileTagsFilter: ["dynamiclibrary", "dynamiclibrary_import"]
+            qbs.install: true
+            qbs.installDir: "lib"
+        }
+        Group {
+            fileTagsFilter: ["Exporter.qbs.module"]
+            qbs.install: true
+            qbs.installDir: "qbs/modules/MyLib"
+        }
+
+        Export {
+            Depends { name: "cpp" }
+            property string includeDir: product.sourceDirectory
+            Properties {
+                condition: true
+                cpp.includePaths: [includeDir]
+                cpp.dynamicLibraries: []
+            }
+            cpp.dynamicLibraries: ["nosuchlib"]
+            Depends { name: "local" }
+            local.dummy: true
+            prefixMapping: [{
+                    prefix: includeDir,
+                    replacement: FileInfo.joinPaths(qbs.installPrefix, product.headersInstallDir)
+                }]
+        }
+    }
+
+    references: ["consumer.qbs"]
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/helper.cpp.in b/tests/auto/blackbox/testdata/exports-qbs/helper.cpp.in
new file mode 100644
index 000000000..21c1f8ee6
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/helper.cpp.in
@@ -0,0 +1,6 @@
+#include <mylib.h>
+
+void helper()
+{
+    MyLib::f();
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/helper.js b/tests/auto/blackbox/testdata/exports-qbs/helper.js
new file mode 100644
index 000000000..17c4e91c0
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/helper.js
@@ -0,0 +1 @@
+function toolInputs() { return ["cpp.in"]; }
diff --git a/tests/auto/blackbox/testdata/exports-qbs/mylib.cpp b/tests/auto/blackbox/testdata/exports-qbs/mylib.cpp
new file mode 100644
index 000000000..f3dc6a435
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/mylib.cpp
@@ -0,0 +1,5 @@
+#include "mylib.h"
+
+namespace MyLib {
+void f() {}
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/mylib.h b/tests/auto/blackbox/testdata/exports-qbs/mylib.h
new file mode 100644
index 000000000..9f5f8269e
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/mylib.h
@@ -0,0 +1,17 @@
+#if defined(_WIN32) || defined(WIN32)
+#    define DLL_EXPORT __declspec(dllexport)
+#    define DLL_IMPORT __declspec(dllimport)
+#else
+#    define DLL_EXPORT __attribute__((visibility("default")))
+#    define DLL_IMPORT __attribute__((visibility("default")))
+#  endif
+
+#ifdef MYLIB_BUILD
+#define MYLIB_EXPORT DLL_EXPORT
+#else
+#define MYLIB_EXPORT DLL_IMPORT
+#endif
+
+namespace MyLib {
+MYLIB_EXPORT void f();
+}
diff --git a/tests/auto/blackbox/testdata/exports-qbs/tool.cpp b/tests/auto/blackbox/testdata/exports-qbs/tool.cpp
new file mode 100644
index 000000000..4657033fd
--- /dev/null
+++ b/tests/auto/blackbox/testdata/exports-qbs/tool.cpp
@@ -0,0 +1,18 @@
+#include <cstdlib>
+#include <fstream>
+
+int main(int argc, char *argv[])
+{
+    if (argc != 3)
+        return EXIT_FAILURE;
+    std::ifstream in(argv[1]);
+    if (!in)
+        return EXIT_FAILURE;
+    std::ofstream out(argv[2]);
+    if (!out)
+        return EXIT_FAILURE;
+    char ch;
+    while (in.get(ch))
+        out.put(ch);
+    return in.eof() && out ? EXIT_SUCCESS : EXIT_FAILURE;
+}