Fix silent script failure on Windows (Git Bash / MINGW)

[w3spi5]

Problem

The installation script silently exits after displaying "Configuration:" when run on Windows with Git Bash / MINGW. No error message is shown, making debugging very difficult.

Root Causes

1. CRLF line endings: Git on Windows converts files to CRLF by default, which breaks bash scripts
2. Bash arithmetic exit codes: Expressions like ((count++)) return exit code 1 when the variable is 0 (because 0 is "false" in bash). Combined with set -e, this silently terminates the script

Solution

1. Auto-fix CRLF on Windows

Added detection and automatic conversion of CRLF to LF when running on MINGW/MSYS. The script converts all .sh and .yml files, then restarts itself.

2. Retry mechanism

If the script fails for any reason, it automatically retries without strict mode (set -e), allowing it to complete and show any errors.

3. Safe arithmetic expressions

Added || true to all ((var++)) expressions to prevent them from triggering set -e when the variable is 0.

4. .gitattributes

Added .gitattributes to enforce LF line endings for future clones.

Files Changed

• scripts/project-install.sh - Added CRLF fix, retry mechanism, and safe arithmetic
• .gitattributes - New file to enforce LF line endings

Testing

Tested on Windows 11 with Git Bash (MINGW64). Script now completes successfully on first run.

[w3spi5]

Hi @CasJam,

I noticed PR #317 by @Perlover addresses the same arithmetic exit code issue. Their approach uses pre-increment ((++var)) instead of my ((var++)) || true — both work, but theirs is cleaner.

However, my PR includes additional fixes that #317 doesn't cover:

1. Auto-fix CRLF on Windows — Detects and converts CRLF to LF automatically when running on Git Bash/MINGW, then restarts the script
2. Retry mechanism — If the script still fails for any reason, it retries without set -e to allow completion
3. .gitattributes — Prevents CRLF issues for future clones

These additions specifically address Windows compatibility issues that caused the script to fail silently (see discussion #311).

Suggestion: You could merge #317 first (simpler fix), then cherry-pick my CRLF/retry additions. Or I can update my PR to use ((++var)) instead of || true if you prefer a single merged solution.

Let me know what works best!

[w3spi5]

@CasJam, have you seen PR on your project ? wake up please, we are waiting for this correction. I have to modify all my dev env on all machines, please correct asap

[w3spi5]

⚠️ Additional Fix: Permission Denied on Linux/WSL2

If you manually copy the scripts (instead of git clone), you may get "Permission denied" errors when running them.

Root cause: Unix execute permissions (+x) are not preserved when copying files between Windows (NTFS) and Linux/WSL2 filesystems.

Quick fix:
chmod +x ~/agent-os/scripts/*.sh

This fixed my issue on my desktop (WSL2 Ubuntu) where the scripts worked fine on my laptop but failed with "permission denied" on my fixed PC.