From 0d59114448afe7ab907f65860c26d89a3c47a9b9 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Sun, 17 Oct 2004 18:50:49 -0400
Subject: [PATCH] ENH: Add method to find file in parent directories if it
exists
---
SystemTools.cxx | 23 +++++++++++++++++++++++
SystemTools.hxx.in | 6 ++++++
2 files changed, 29 insertions(+)
diff --git a/SystemTools.cxx b/SystemTools.cxx
index 3f5d0e34..f257b976 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -2071,6 +2071,29 @@ bool SystemTools::IsSubDirectory(const char* cSubdir, const char* cDir)
return false;
}
+kwsys_stl::string SystemTools::FileExistsInParentDirectories(const char* fname,
+ const char* directory, const char* toplevel)
+{
+ kwsys_stl::string file = fname;
+ SystemTools::ConvertToUnixSlashes(file);
+ kwsys_stl::string dir = directory;
+ SystemTools::ConvertToUnixSlashes(dir);
+ while ( 1 )
+ {
+ kwsys_stl::string path = dir + "/" + file;
+ if ( SystemTools::FileExists(path.c_str()) )
+ {
+ return path;
+ }
+ if ( dir.size() < strlen(toplevel) )
+ {
+ break;
+ }
+ dir = SystemTools::GetParentDirectory(dir.c_str());
+ }
+ return "";
+}
+
// These must NOT be initialized. Default initialization to zero is
// necessary.
unsigned int SystemToolsManagerCount;
diff --git a/SystemTools.hxx.in b/SystemTools.hxx.in
index f80c9370..2b73b7c6 100644
--- a/SystemTools.hxx.in
+++ b/SystemTools.hxx.in
@@ -322,6 +322,12 @@ public:
/** Check if the given file or directory is in subdirectory of dir */
static bool IsSubDirectory(const char* fileOrDir, const char* dir);
+ /** Check if the given file exists in one of the parent directory of the
+ * given file or directory and if it does, return the name of the file.
+ * Toplevel specifies the top-most directory to where it will look.*/
+ static kwsys_stl::string FileExistsInParentDirectories(const char* fname,
+ const char* directory, const char* toplevel);
+
protected:
// these two functions can be called from ConvertToOutputPath
/**
--
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