rust-index: use interior mutability in head revs and caches For upcoming changes in `hg-cpython` switching to the `hg-core` index in ancestors iterators, we will need to avoid excessive mutability, restricting the use of mutable references on `hg::index::Index` to methods that actually logically mutate it, whereas the maintenance of caches such as `head_revs` clearly does not. We illustrate that immediately by switching to immutable borrows in the corresponding methods of `hg-cpython::MixedIndex`

     1

# See http://EditorConfig.org for the specification

     2

     3

root = true

     4

     5

[*.py]

     6

indent_size = 4

     7

indent_style = space

     8

trim_trailing_whitespace = true

     9

end_of_line = lf

    10

    11

[*.{c,h}]

    12

indent_size = 8

    13

indent_style = tab

    14

trim_trailing_whitespace = true

    15

end_of_line = lf

    16

    17

[*.t]

    18

indent_size = 2

    19

indent_style = space

    20

trim_trailing_whitespace = false

    21

end_of_line = lf