Re: [PATCH] tree-diff: remove the usage of the_hash_algo global

Shreyansh Paliwal [off-list ref] writes:

emit_path() uses the global the_hash_algo even though a local repository is
already available via struct diff_options *opt.

Replace these uses with opt->repo->hash_algo. With no remaining reliance on
global states in this file, drop the dependency on 'environment.h' and remove
'#define USE_THE_REPOSITORY_VARIABLE'.

This follows earlier cleanups to introduce opt->repo in tree-diff.c [1][2].

[1]- https://lore.kernel.org/git/20180921155739.14407-21-pclouds@gmail.com/ (local)
[2]- https://lore.kernel.org/git/20260109213021.2546-2-l.s.r@web.de/ (local)

Signed-off-by: Shreyansh Paliwal <redacted>
---
 tree-diff.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Nice.  Will queue.  Thanks.