feat(#22): add ability to review local changes without a PR

[scastlara]

Now you can review local changes just by passing the path to the git repo to lgtm.
You can also choose what to compare against (main, HEAD, any ranges, etc.).

Example:

closes #22

[github-actions]

Coverage for Python 3.12 •

File	Stmts	Miss	Cover	Missing
lgtm_ai
__main__.py	135	7	94%	53, 179, 329, 350–351, 353–354
validators.py	76	10	86%	25, 34, 89, 96–101, 115
lgtm_ai/base
schemas.py	34	0	100%
lgtm_ai/config
handler.py	198	5	97%	126, 223–224, 270–271
lgtm_ai/git
__init__.py	0	0	100%
exceptions.py	2	0	100%
parser.py	52	2	96%	85–86
repository.py	50	0	100%
lgtm_ai/git_client
github.py	165	21	87%	45–46, 59–61, 104–105, 109–113, 115, 140–141, 164, 169, 171–172, 177, 210
gitlab.py	159	20	87%	42–44, 63–64, 88–89, 95–96, 112–114, 123–124, 129–131, 210, 243–244
schemas.py	16	0	100%
utils.py	16	5	68%	16–19, 21
lgtm_ai/review
context.py	105	18	82%	65–67, 71, 96, 128–129, 132–133, 144, 147–148, 156–161
guide.py	35	1	97%	38
reviewer.py	61	4	93%	97–99, 101
TOTAL	1770	134	92%

Tests	Skipped	Failures	Errors	Time
222	0 💤	0 ❌	0 🔥	9.555s ⏱️

[github-actions]

Coverage for Python 3.13 •

File	Stmts	Miss	Cover	Missing
lgtm_ai
__main__.py	135	7	94%	53, 179, 329, 350–351, 353–354
validators.py	76	10	86%	25, 34, 89, 96–101, 115
lgtm_ai/base
schemas.py	34	0	100%
lgtm_ai/config
handler.py	198	5	97%	126, 223–224, 270–271
lgtm_ai/git
__init__.py	0	0	100%
exceptions.py	2	0	100%
parser.py	52	2	96%	85–86
repository.py	50	0	100%
lgtm_ai/git_client
github.py	165	21	87%	45–46, 59–61, 104–105, 109–113, 115, 140–141, 164, 169, 171–172, 177, 210
gitlab.py	159	20	87%	42–44, 63–64, 88–89, 95–96, 112–114, 123–124, 129–131, 210, 243–244
schemas.py	16	0	100%
utils.py	16	5	68%	16–19, 21
lgtm_ai/review
context.py	105	18	82%	65–67, 71, 96, 128–129, 132–133, 144, 147–148, 156–161
guide.py	35	1	97%	38
reviewer.py	61	4	93%	97–99, 101
TOTAL	1770	134	92%

Tests	Skipped	Failures	Errors	Time
222	0 💤	0 ❌	0 🔥	8.629s ⏱️

[scastlara]

/lgtm review

[github-actions]

🦉 lgtm Review

Score: Needs Work 🔧

🔍 Summary

Overall, this is a great addition; enabling local reviews is a very useful feature. The implementation is well-structured, introducing a new module for local git repository interactions, and the test coverage for the new logic is commendable.

However, there are a couple of issues that need addressing:

• The guide command doesn't seem to support local repositories, which will lead to a runtime error if a user tries it. This needs to be either fixed or the option disabled for local paths.
• There is a broken test in tests/git/test_repository.py due to incorrect model instantiation.
• I also found a small code quality issue with some dead code.

Once these points are fixed, this PR will be in great shape.

More information

• Id: ab117b5fbdff4fa3a46c537a7f035ab8
• Model: gemini-2.5-pro
• Created at: 2025-09-10T10:30:27.057943+00:00

Usage summary

• Request count: 2
• Request tokens: 176,319
• Response tokens: 10,110
• Total tokens: 186,429

See the 📚 lgtm-ai repository for more information about lgtm.