I wanted to get a diff output between a particular revision of a versioned file and an external file.
I understand this is possible svn diff --old "path/to/versioned/file1"@1234 --new "path/to/versioned/file1"@1235 find the differences between revision 1234 and 1235 of the file.
And also this svn diff --old "path/to/versioned/file1" --new "externalpath/to/external/folder/file1" which finds the difference between the latest versioned file and an external file which is not versioned with SVN.
What I wanted was to compare a particular revision against and external file which is not versioned. Something like this:
svn diff --old "path/to/versioned/file1"@1234 --new "externalpath/to/external/folder/file1"
Edit:
The issue is that that command does not work.
Error text:
svn: E155007: 'externalpath/to/external/folder/file1' is not a working copy
FYI: I am using TortoiseSVN as the SVN client
@friedrich's workaround does work well for this particular query.
One alternative workaround I used which can prevent the need to update the database is to cat the required revision to a file using the command svn cat "path/to/versioned/file1"@1234 > file1234 and diff-ing with that temporary file. The entire one line command looks as such:
svn cat "path/to/versioned/file1"@1234 > file1234 & svn diff --old file1234 --new externalpath/to/external/folder/file1