git-mergetool--lib

Not for direct user invocation.
git-mergetool--lib is an internal library script sourced by other Git commands, primarily git mergetool, to provide common functionalities. It does not have a user-facing command-line synopsis.

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    As an internal library script, git-mergetool--lib does not accept command-line parameters in the traditional sense. Its functions are called with arguments by the scripts that source it.

git-mergetool--lib is an internal library script used by the git mergetool command. It provides a collection of common functions and utilities to facilitate the integration and invocation of various external merge tools (e.g., KDiff3, Meld, Beyond Compare) within the Git workflow. This script handles tasks such as parsing merge tool configurations from Git's configuration files, identifying available merge tool paths, and constructing the appropriate command-line arguments for launching the selected tool.
It is not intended for direct user execution but is sourced by git mergetool and its helper scripts to abstract away the complexities of tool-specific invocation details, ensuring a consistent interface for merge resolution.

git-mergetool--lib is an internal component of Git. It is not designed for direct user interaction or invocation. Its internal functions, interfaces, and behavior may change without prior notice across Git versions, as it is subject to the internal development and refactoring of the git mergetool command. Users should interact with merge functionality exclusively through the public git mergetool command.

git-mergetool--lib is typically invoked by other Git scripts using the `.` (dot) or `source` shell built-in command. This makes its functions and variables available in the calling script's environment. For example, git mergetool might use `source "$(git --exec-path)/git-mergetool--lib"`. This allows it to define functions like `run_merge_tool` or `get_merge_tool_cmd` that are then called by the main git mergetool logic.

git-mergetool--lib emerged as part of the ongoing effort to improve and standardize external merge tool integration within Git. As the git mergetool command evolved to support a wide array of tools and configuration options, centralizing common helper functions into a dedicated library script like git-mergetool--lib became necessary. This modular approach helps in maintaining the codebase, adding new tool support, and ensuring consistent behavior across different merge tool invocations within Git.

git mergetool(1), git-config(1), git(1)