Adding chat template support for Granite model

[smdesai]

This adds support for the chat template Granite model. It also modified build-xcframework.sh to include libcommon.a and supporting header files so the built framework can be used by a Swift wrapper for template processing.

[ggerganov]

It also modified build-xcframework.sh to include libcommon.a and supporting header files so the built framework can be used by a Swift wrapper for template processing.

The libcommon is not supposed to be used externally - it's only used by llama.cpp examples and tools.

[smdesai]

Thank's for the update. I've reverted build-xcframework.sh to it's original form and the rest of the change set is model template specific which should be fine.

[ggerganov]

LGTM, though would be nice to have a second look from somebody more familiar with tools/templates.

[Copilot]

Pull Request Overview

This PR adds support for the Granite chat template format by IBM, including thinking (reasoning) capabilities and tool calling functionality. The implementation includes format detection, template processing, and message parsing for the Granite model.

• Adds COMMON_CHAT_FORMAT_GRANITE enum value and associated parsing logic
• Implements granite-specific thinking tag support with COMMON_REASONING_FORMAT_GRANITE
• Enhances tool call argument parsing to handle both object and string formats

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
common/common.h	Adds COMMON_REASONING_FORMAT_GRANITE enum for granite thinking format
common/chat.h	Adds COMMON_CHAT_FORMAT_GRANITE enum for granite chat format
common/chat.cpp	Implements granite template initialization, parsing logic, and format detection
common/chat-parser.cpp	Enhances tool call argument handling for object/string formats
tests/test-chat.cpp	Adds comprehensive test coverage for granite format functionality

Comments suppressed due to low confidence (2)