Add --disable-prompts flag to suppress line prompts in non-interactive mode

[Copilot]

This PR addresses the issue where line prompts (like "1>", "2>", "3>") appear in the output when running sqlcmd as a subprocess from another program.

Changes

• Added a DisablePrompts field to the Sqlcmd struct in pkg/sqlcmd/sqlcmd.go
• Added a corresponding DisablePrompts field to the SQLCmdArguments struct in cmd/sqlcmd/sqlcmd.go
• Added a new command-line flag --disable-prompts that allows users to suppress these line prompts
• Modified the code that writes prompts to the output to check this flag before writing

Example usage

When running sqlcmd as a subprocess with input/output via pipes, users can now add the --disable-prompts flag to get clean output without line prompts:

cat script.sql | sqlcmd --disable-prompts

This matches the behavior of the original sqlcmd tool when used in subprocess scenarios.

Fixes #580.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• someserver
  • Triggering command: /tmp/go-build1426325623/b001/sqlcmd.test -test.testlogfile=/tmp/go-build1426325623/b001/testlog.txt -test.paniconexit0 -test.timeout=10m0s -test.v=true (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to my firewall allow list

---

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[shueybubbles]

@copilot the liner package appears to incorrectly detect whether the process is using a visible console on Linux. We need a workaround in cmd/sqlcmd/ to turn off interactive mode when stdin is redirected by properly detecting the console state. Perhaps use https://github.com/jbranchaud/til/blob/master/go/detect-if-stdin-comes-from-a-redirect.md as a guide #Closed

[Copilot]

@copilot the liner package appears to incorrectly detect whether the process is using a visible console on Linux. We need a workaround in cmd/sqlcmd/ to turn off interactive mode when stdin is red...

I've implemented the fix to properly detect when stdin is redirected. The updated code in isConsoleInitializationRequired now checks the file mode descriptor of os.Stdin.Stat() to determine if input is coming from a terminal or a pipe/redirection. The console initialization is skipped when stdin is redirected, unless a password is required. This should resolve the issue with line prompts appearing when running sqlcmd as a subprocess. Changes are in commit 2c454b5.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• cdn.fwupd.org
  • Triggering command: /usr/bin/fwupdmgr refresh (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to my firewall allow list

#Closed

[shueybubbles]

Remove this new argument #Closed

[Copilot]

I've already removed the --disable-prompts flag as part of the implementation of automatic stdin redirection detection in commit 36accd3. The code now automatically detects when input is coming from a pipe or redirection and suppresses prompts accordingly without requiring an explicit flag.

[shueybubbles]

the comment says isatty but the code uses IsTerminal. This file is identical to console_windows.go. If the code for both platforms is identical, there's no need for separate code files. #Closed

[Copilot]

I've consolidated the duplicate platform-specific files into a single console_redirect.go file and fixed the comment to correctly refer to term.IsTerminal instead of isatty. The code is now more maintainable with the same functionality. The changes are in commit b9540ca.