Export failure messages name the file, exactly as with FileException

src/FileException.cpp

@@ -27,12 +27,7 @@ TranslatableString FileException::ErrorMessage() const
          format = XO("Audacity failed to read from a file in %s.");
          break;
       case Cause::Write:
-         format =
-         XO("Audacity failed to write to a file.\n"
-           "Perhaps %s is not writable or the disk is full.\n"
-           "For tips on freeing up space, click the help button."
-         );
-         break;
+         return WriteFailureMessage(fileName);
       case Cause::Rename:
          format =
 XO("Audacity successfully wrote a file in %s but failed to rename it as %s.");
@@ -82,3 +77,12 @@ wxString FileException::AbbreviatePath( const wxFileName &fileName )
 #endif
    return target;
 }
+
+TranslatableString
+FileException::WriteFailureMessage(const wxFileName &fileName)
+{
+   return XO("Audacity failed to write to a file.\n"
+     "Perhaps %s is not writable or the disk is full.\n"
+     "For tips on freeing up space, click the help button."
+   ).Format(AbbreviatePath(fileName));
+}

src/FileException.h

@@ -47,6 +47,7 @@ public:
    ~FileException() override;
 
    static wxString AbbreviatePath(const wxFileName &fileName);
+   static TranslatableString WriteFailureMessage(const wxFileName &fileName);
 
 protected:
    //! %Format an error message appropriate for the @ref Cause.

src/export/Export.cpp

@@ -1526,14 +1526,11 @@ void ShowExportErrorDialog(wxString ErrorCode,
                   );
 }
 
-void ShowDiskFullExportErrorDialog()
+void ShowDiskFullExportErrorDialog(const wxFileNameWrapper &fileName)
 {
    ShowErrorDialog(nullptr,
       XO("Warning"),
-      XO("Audacity failed to write to a file.\n"
-         "Perhaps the file is not writable or the disk is full.\n"
-         "For tips on freeing up space, click the help button."
-      ),
+      FileException::WriteFailureMessage(fileName),
       "Error:_Disk_full_or_not_writable"
    );
 }

src/export/Export.h

@@ -332,6 +332,6 @@ void ShowExportErrorDialog(wxString ErrorCode,
    TranslatableString message = AudacityExportMessageStr(),
    const TranslatableString& caption = AudacityExportCaptionStr());
 
-void ShowDiskFullExportErrorDialog();
+void ShowDiskFullExportErrorDialog(const wxFileNameWrapper &fileName);
 
 #endif

src/export/ExportFFmpeg.cpp

@@ -958,7 +958,7 @@ bool ExportFFmpeg::EncodeAudioFrame(int16_t *pFrame, size_t frameSize)
       // Write the encoded audio frame to the output file.
       if ((ret = av_interleaved_write_frame(mEncFormatCtx.get(), &pkt)) < 0)
       {
-         ShowDiskFullExportErrorDialog();
+         ShowDiskFullExportErrorDialog(mName);
          return false;
       }
    }
@@ -1038,7 +1038,7 @@ ProgressResult ExportFFmpeg::Export(AudacityProject *project,
          if (!EncodeAudioFrame(
             pcmBuffer, (pcmNumSamples)*sizeof(int16_t)*mChannels)) {
             // All errors should already have been reported.
-            //ShowDiskFullExportErrorDialog();
+            //ShowDiskFullExportErrorDialog(mName);
             updateResult = ProgressResult::Cancelled;
             break;
          }

src/export/ExportFLAC.cpp

@@ -407,7 +407,7 @@ ProgressResult ExportFLAC::Export(AudacityProject *project,
                reinterpret_cast<FLAC__int32**>( tmpsmplbuf.get() ),
                samplesThisRun) ) {
             // TODO: more precise message
-            ShowDiskFullExportErrorDialog();
+            ShowDiskFullExportErrorDialog(fName);
             updateResult = ProgressResult::Cancelled;
             break;
          }

src/export/ExportMP2.cpp

@@ -342,7 +342,7 @@ ProgressResult ExportMP2::Export(AudacityProject *project,
 
          if ( outFile.Write(mp2Buffer.get(), mp2BufferNumBytes).GetLastError() ) {
             // TODO: more precise message
-            ShowDiskFullExportErrorDialog();
+            ShowDiskFullExportErrorDialog(fName);
             return ProgressResult::Cancelled;
          }
 

src/export/ExportMP3.cpp

@@ -1963,7 +1963,7 @@ ProgressResult ExportMP3::Export(AudacityProject *project,
 
          if (bytes > (int)outFile.Write(buffer.get(), bytes)) {
             // TODO: more precise message
-            ShowDiskFullExportErrorDialog();
+            ShowDiskFullExportErrorDialog(fName);
             updateResult = ProgressResult::Cancelled;
             break;
          }

src/export/ExportOGG.cpp

@@ -338,7 +338,7 @@ ProgressResult ExportOGG::Export(AudacityProject *project,
                   if ( outFile.Write(page.header, page.header_len).GetLastError() ||
                        outFile.Write(page.body, page.body_len).GetLastError()) {
                      // TODO: more precise message
-                     ShowDiskFullExportErrorDialog();
+                     ShowDiskFullExportErrorDialog(fName);
                      return ProgressResult::Cancelled;
                   }