| #!/bin/bash |
| |
| # Transform an @ file into a file list. |
| # |
| # The intended use case is given an @ path passed to swift, use this script and |
| # bash to automagically expand the @ path by transforming: |
| # |
| # @/foo/bar/baz.txt |
| # |
| # => |
| # |
| # <(at-to-filelist /foo/bar/baz.txt) |
| # |
| # For those unaware, <(...) causes bash to output the subshell's output into a |
| # file and then replace <(...) with the path to that temporary file. |
| # |
| # Example: |
| # |
| # Consider a swiftc command line that uses the @ symbol. |
| # |
| # swiftc @/foo/bar/baz.txt |
| # |
| # When this is run, the @ command is expanded into a filelist in a temporary |
| # file. This doesn't work with -### since -### outputs the command line with a |
| # temporary file for the filelist, but uses a path to a temporary file that |
| # doesn't exist, e.g.: |
| # |
| # swift -frontend -filelist /tmp/tmp.filelist ... |
| # |
| # To run this command, you use the at-to-filelist command as follows: |
| # |
| # swift -frontend -filelist <(at-to-filelist /foo/bar/baz.txt) |
| cat ${1} | tr -s ";" "\n" |
| |
| echo |
