From 4b8dac88581f225fa49bd5bb94fd6315e946dfff Mon Sep 17 00:00:00 2001
From: Pablo Duboue <pablo.duboue@gmail.com>
Date: Sun, 24 Dec 2023 08:13:17 -0800
Subject: [PATCH] Allow recursive folder addition of executables (closes #379)

---
 BUILDING.md                  |  4 ++--
 README.md                    |  2 ++
 tools/linuxdeployqt/main.cpp | 23 +++++++++++++++++++++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/BUILDING.md b/BUILDING.md
index 1c98d0ec..6c4bc0a6 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -4,7 +4,7 @@ If you just would like to bundle your application for x86_64 platforms, it is no
 
 So, if you are on another platform (e.g. i686, ARM) or would like to compile from source, here are the steps:
 
-* Get and build linuxdeployqt e.g., using Qt 5.7.0 (you could use this [Qt Creator AppImage](https://bintray.com/probono/AppImages/QtCreator#files) for this)
+* Get and build linuxdeployqt e.g., using Qt 5.7.0 (before you could use this [Qt Creator AppImage](https://bintray.com/probono/AppImages/QtCreator#files) for this, but it is no longer available)
 
 ```
 sudo apt-get -y install git g++ libgl1-mesa-dev
@@ -22,7 +22,7 @@ make
 sudo make install
 ```
 
-* Build and install [patchelf](https://nixos.org/patchelf.html) (a small utility to modify the dynamic linker and RPATH of ELF executables; similar to `install_name_tool` on macOS). To learn more about this, see http://blog.qt.io/blog/2011/10/28/rpath-and-runpath/
+* Build and install [patchelf](https://nixos.org/patchelf.html) (a small utility to modify the dynamic linker and RPATH of ELF executables; similar to `install_name_tool` on macOS). To learn more about this, see http://blog.qt.io/blog/2011/10/28/rpath-and-runpath/. Also available as Debian package `patchelf`.
 
 ```
 wget https://nixos.org/releases/patchelf/patchelf-0.9/patchelf-0.9.tar.bz2
diff --git a/README.md b/README.md
index 18d3e847..b2e10003 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,8 @@ Options:
                               searching for libraries.
    -executable=<path>       : Let the given executable use the deployed libraries
                               too
+   -executable-dir=<path>   : Let all the executables in the folder (recursive) use
+                              the deployed libraries too
    -extra-plugins=<list>    : List of extra plugins which should be deployed,
                               separated by comma.
    -no-copy-copyright-files : Skip deployment of copyright files.
diff --git a/tools/linuxdeployqt/main.cpp b/tools/linuxdeployqt/main.cpp
index 98d4b589..810ba60d 100644
--- a/tools/linuxdeployqt/main.cpp
+++ b/tools/linuxdeployqt/main.cpp
@@ -63,6 +63,7 @@ int main(int argc, char **argv)
     extern QStringList librarySearchPath;
     extern bool alwaysOwerwriteEnabled;    
     QStringList additionalExecutables;
+    QStringList additionalExecutablesDir;
     bool qmldirArgumentUsed = false;
     bool skipTranslations = false;
     bool skipGlibcCheck = false;
@@ -120,6 +121,13 @@ int main(int argc, char **argv)
                 LogError() << "Could not parse verbose level";
             else
                 logLevel = number;
+        } else if (argument.startsWith(QByteArray("-executable-dir"))) {
+            LogDebug() << "Argument found:" << argument;
+            int index = argument.indexOf('=');
+            if (index == -1)
+                LogError() << "Missing executable folder path";
+            else
+                additionalExecutablesDir << argument.mid(index+1);
         } else if (argument.startsWith(QByteArray("-executable"))) {
             LogDebug() << "Argument found:" << argument;
             int index = argument.indexOf('=');
@@ -228,6 +236,8 @@ int main(int argc, char **argv)
         qInfo() << "                              searching for libraries.";
         qInfo() << "   -executable=<path>       : Let the given executable use the deployed libraries";
         qInfo() << "                              too";
+        qInfo() << "   -executable-dir=<path>   : Let all the executables in the folder (recursive) use";
+        qInfo() << "                              the deployed libraries too";
         qInfo() << "   -extra-plugins=<list>    : List of extra plugins which should be deployed,";
         qInfo() << "                              separated by comma.";
         qInfo() << "   -no-copy-copyright-files : Skip deployment of copyright files.";
@@ -496,6 +506,19 @@ int main(int argc, char **argv)
         qWarning() << "WARNING: Excluding the following libraries might break the AppImage. Please double-check the list:" << excludeLibs;
     }
 
+    // recurse folders for additional executables
+    for(const auto& folder : additionalExecutablesDir) {
+      QString directoryToBeSearched = QDir::cleanPath(QFileInfo(folder).absolutePath());
+      QDirIterator it(directoryToBeSearched, QDirIterator::Subdirectories);
+      while (it.hasNext()) {
+        it.next();
+        if((it.fileInfo().isFile()) && (it.fileInfo().isExecutable())){
+          qDebug() << "Found additional executable:" << it.fileInfo().canonicalFilePath();
+          additionalExecutables << it.fileInfo().absoluteFilePath();
+        }
+      }
+    }
+
     DeploymentInfo deploymentInfo = deployQtLibraries(appDirPath, additionalExecutables,
                                                       qmakeExecutable);