[core] Ray build from source setup doesn't work for github codespace

[SaSikun]

What happened + What you expected to happen

Following build from source documentation, I tried to install all necessary dependencies and build ray, somehow on github codespace I cannot access bazel binary after a successful installation.

@SaSikun ➜ /workspaces/ray (master) $ ci/env/install-bazel.sh
<omit a few output>
+ chmod +x /home/codespace/bin/bazel
+ bazel --version
bazel 6.5.0
+ echo
@SaSikun ➜ /workspaces/ray (master) $ echo $?
0
@SaSikun ➜ /workspaces/ray (master) $ bazel --version
bash: bazel: command not found

• bazel installation script does succeed
• bazel --version does output expected version after installation
• while it cannot be located in my shell env

Platform information

@SaSikun ➜ /workspaces/ray (master) $ uname -a 
Linux codespaces-b37228 6.5.0-1025-azure #26~22.04.1-Ubuntu SMP Thu Jul 11 22:33:04 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
@SaSikun ➜ /workspaces/ray (master) $ lscpu
Architecture:                       x86_64
CPU op-mode(s):                     32-bit, 64-bit
Byte Order:                         Little Endian
Address sizes:                      48 bits physical, 48 bits virtual

Versions / Dependencies

N/A

Reproduction script

ci/env/install-bazel.sh

Issue Severity

Low: It annoys or frustrates me.

[dentiny]

I think our setup script doesn't handle default executable installation path for github codespace, for example appending /home/codespace/bin/bazel to your PATH should work.

On fixing the script, add one line at the end export PATH=$PATH:$(which bazel) should work