server: add get_info tool

[ngxson]

Overview

Add get_info tool that returns the current OS name and cwd, useful when the model wants to know the cwd but exec_shell tool may be disabled

Need testing on windows; need to adapt to #26507

Requirements

• I have read and agree with the contributing guidelines
• AI usage disclosure: yes

[am17an]

why was this removed?

[ngxson]

hmm ok llama_supports_rpc() is false on my system so the autogenerated docs leave it out

[ngxson]

fixed: 5f0af44

[Danmoreng]

Did a quick test on Windows on commit 5f0af44fe. The version info starts with \r\n which probably should be trimmed as well:

PS> $uri = 'http://127.0.0.1:8092'
PS> $body = @{
>>     tool   = 'get_info'
>>     params = @{}
>> } | ConvertTo-Json -Compress
PS> $info = Invoke-RestMethod `
>>     -Method Post `
>>     -Uri "$uri/tools" `
>>     -ContentType 'application/json' `
>>     -Body $body
PS> $info | Format-List
os  :
      Microsoft Windows [Version 10.0.26200.8875]
cwd : C:\Development\llama.cpp-pr-26522
PS> $info.os | ConvertTo-Json -Compress
"\r\nMicrosoft Windows [Version 10.0.26200.8875]"

[ServeurpersoCom]

To make it work on Linux, though I'm going to minimize this commit, and Windows still needs to be tested.

[ServeurpersoCom]

Did a quick test on Windows on commit 5f0af44fe. The version info starts with \r\n which probably should be trimmed as well:

PS> $uri = 'http://127.0.0.1:8092'
PS> $body = @{
>>     tool   = 'get_info'
>>     params = @{}
>> } | ConvertTo-Json -Compress
PS> $info = Invoke-RestMethod `
>>     -Method Post `
>>     -Uri "$uri/tools" `
>>     -ContentType 'application/json' `
>>     -Body $body
PS> $info | Format-List
os  :
      Microsoft Windows [Version 10.0.26200.8875]
cwd : C:\Development\llama.cpp-pr-26522
PS> $info.os | ConvertTo-Json -Compress
"\r\nMicrosoft Windows [Version 10.0.26200.8875]"

Thanks for testing it out; actually, this one is fixed now, so you can test it again. :)

[Danmoreng]

@ServeurpersoCom looks good now

PS> $info | Format-List
os  : Microsoft Windows [Version 10.0.26200.8875]
cwd : C:\Development\llama.cpp-pr-26522

PS> $info.os | ConvertTo-Json -Compress
"Microsoft Windows [Version 10.0.26200.8875]"

[ServeurpersoCom]

LGTM, Linux OK, Windows OK thanks for testing @Danmoreng