Provide Diff statistics
shibumi opened this issue · 1 comments
shibumi commented
Hey there,
we have a Google internal Use case, where it would be nice to support Diff statistics. Any chance that we can get this into go-cmp?
I thought about something like:
- Total: Total number of Differences (each line counts as a difference)
- Additions: Number of additions
- Changes: Number of Changes
- Removals: Number of Removals
As first draft a total number is sufficient.
dsnet commented
This is highly specialized and I don't think there needs to be first-class support for it in cmp
.
You can accomplish this yourself using a custom Reporter
.
The output of Diff
is implemented in terms of a Reporter
. You can look at the implementation in the cmp
package and take the relevant parts to gather the statistics you care about.