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 @briancasel,

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!