Fix env.sh.

[azteca1998]

This PR allows env.sh to be used from any directory, not just the cairo native project's root. This is useful for setting up the environment in other projects (ex. the replay) painlessly.

Checklist

• Linked to Github Issue
• Unit tests added
• Integration tests added.
• This change requires new documentation.
  • Documentation has been added/updated.

[github-actions]

Benchmarking results

Benchmark for program factorial_2M

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	11.547 ± 0.362	10.969	11.900	8.56 ± 0.27
cairo-native (embedded AOT)	3.567 ± 0.067	3.500	3.724	2.65 ± 0.05
cairo-native (embedded JIT using LLVM's ORC Engine)	3.353 ± 0.054	3.274	3.434	2.49 ± 0.04
cairo-native (standalone AOT with -march=native)	1.348 ± 0.001	1.347	1.350	1.00

Benchmark for program fib_2M

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	11.150 ± 0.259	10.803	11.687	142.02 ± 4.54
cairo-native (embedded AOT)	3.114 ± 0.042	3.066	3.193	39.66 ± 1.02
cairo-native (embedded JIT using LLVM's ORC Engine)	2.886 ± 0.045	2.812	2.964	36.76 ± 0.99
cairo-native (standalone AOT with -march=native)	0.079 ± 0.002	0.078	0.089	1.00

Benchmark for program logistic_map

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	4.483 ± 0.034	4.423	4.535	18.50 ± 0.14
cairo-native (embedded AOT)	3.321 ± 0.024	3.278	3.366	13.70 ± 0.10
cairo-native (embedded JIT using LLVM's ORC Engine)	3.277 ± 0.045	3.205	3.353	13.52 ± 0.19
cairo-native (standalone AOT with -march=native)	0.242 ± 0.000	0.242	0.243	1.00

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.54%. Comparing base (76e8396) to head (34416b8).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #944      +/-   ##
==========================================
- Coverage   82.55%   82.54%   -0.02%     
==========================================
  Files         117      117              
  Lines       33505    33516      +11     
==========================================
+ Hits        27661    27666       +5     
- Misses       5844     5850       +6     

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[github-actions]

Benchmark results Main vs HEAD.

Command	Mean [s]	Min [s]	Max [s]	Relative
base factorial_2M.cairo (JIT)	3.304 ± 0.040	3.224	3.364	1.00
base factorial_2M.cairo (AOT)	3.444 ± 0.033	3.406	3.508	1.04 ± 0.02
Command	Mean [s]	Min [s]	Max [s]	Relative
:---	---:	---:	---:	---:
head factorial_2M.cairo (JIT)	3.197 ± 0.021	3.165	3.239	1.00
head factorial_2M.cairo (AOT)	3.417 ± 0.031	3.377	3.479	1.07 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base fib_2M.cairo (JIT)	2.826 ± 0.033	2.770	2.882	1.00
base fib_2M.cairo (AOT)	3.065 ± 0.036	3.025	3.131	1.08 ± 0.02
Command	Mean [s]	Min [s]	Max [s]	Relative
:---	---:	---:	---:	---:
head fib_2M.cairo (JIT)	2.818 ± 0.046	2.758	2.886	1.00
head fib_2M.cairo (AOT)	3.077 ± 0.027	3.039	3.117	1.09 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base logistic_map.cairo (JIT)	3.163 ± 0.035	3.114	3.217	1.00
base logistic_map.cairo (AOT)	3.173 ± 0.035	3.123	3.230	1.00 ± 0.02
Command	Mean [s]	Min [s]	Max [s]	Relative
:---	---:	---:	---:	---:
head logistic_map.cairo (JIT)	3.262 ± 0.027	3.215	3.310	1.00 ± 0.02
head logistic_map.cairo (AOT)	3.257 ± 0.049	3.195	3.353	1.00