[Bug 5874] New: Ability to compare differences after applying a filter to files

mercurial-bugs at mercurial-scm.org mercurial-bugs at mercurial-scm.org
Tue May 8 08:11:43 EDT 2018


https://bz.mercurial-scm.org/show_bug.cgi?id=5874

            Bug ID: 5874
           Summary: Ability to compare differences after applying a filter
                    to files
           Product: Mercurial
           Version: 4.6
          Hardware: PC
                OS: Linux
            Status: UNCONFIRMED
          Severity: feature
          Priority: wish
         Component: Mercurial
          Assignee: bugzilla at mercurial-scm.org
          Reporter: zash at zash.se
                CC: mercurial-devel at mercurial-scm.org

Basically, run files through some filter and then diff the respective output. 

This would be useful for
- seeing if a patch fixes compiler or linter warnings, or introduces new issues
- comparing normalized, rendered or stripped output

This can be done by writing custom scripts and using extdiff, but native
support would be nice.

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