File modification time updates even if autoimport does not change file

[Jasha10]

Feature Request

If I run autoimport on a file and the file is not changed, the modification time of the file should not be changed either.

For example:

$ echo "print(123)" > foo.py
$ cat foo.py
print(123)
$ date -r foo.py
Thu Jan 20 17:37:42 CST 2022
$ autoimport foo.py
$ cat foo.py
print(123)
$ # ^ foo.py was not changed
$ date -r foo.py
Thu Jan 20 17:37:51 CST 2022
$ # ^ file modification time has changed!

autoimport did not modify foo.py, but the modification time was changed.

Possible Solution

Perhaps autoimport could check whether the file would be modified, and only touch the file if a nonzero diff would occur.

Additional context

I use makefiles and other similar tools which keep track of file modification time. If autoimport does not change the file's contents, modification of the file modification time triggers a false-positive make/build cycle.

[lyz-code]

Hi @Jasha10 thanks again for opening the issue, I'll look into it next week, as always, if you can make a PR I'll be grateful

[lyz-code]

I'd add it around line 30 of src/autoimport/services.py, the test might be tricky to
make though

[lyz-code]

Fixed in #181 and released under 1.0.2, plz test if it works for you

[Jasha10]

Yes, it's working. Thanks!