[PATCH] use get_merge_tool_path() also in is_available() to honor settings

From: Michael Schindler <michael@compressconsult.com>

fix the is_available test used in git mergetool --tool-help or git difftool --tool-help or to check the list of tools available when no tool is configured/given with --tool

symtoms: the actual tool running run_merge_tool () considers the difftool. "$merge_tool".path and mergetool."$merge_tool".path and if configured honors these. See get_merge_tool_path () in git-mergetool--lib.sh If not set use fallback: translate_merge_tool_path "$merge_tool".

The is_available () just uses translate_merge_tool_path "$merge_tool".

repo 1: Configure an invalid path in mergetool."$merge_tool".path for a tool of your choice. You will be informed that the tool is available, but when trying to use it will not be found because the invalid configured path is used.

repo2: Install a tool of your choice on a nonstandard place (e.g. rename the program) and configure mergetool."$merge_tool".path for this tool. You will be informed that the tool is not available (because not found on standard place), but when trying to run it will work.

This fix will make the information consistent by using get_merge_tool_path() also in is_available()

Signed-off-by: Michael Schindler <michael@compressconsult.com>
---
    use get_merge_tool_path() also in is_available() to honor settings
    
    fix the is_available() used in git mergetool --tool-help or git difftool
    --tool-help or used to check the list of tools available when no tool is
    configured/given with --tool
    
    symtoms: the actual tool running run_merge_tool () considers the
    difftool."$merge_tool".path and mergetool."$merge_tool".path and if
    configured honors these. See get_merge_tool_path () in
    git-mergetool--lib.sh If not defined use fallback:
    translate_merge_tool_path "$merge_tool".
    
    The is_available () just uses translate_merge_tool_path "$merge_tool".
    
    repo 1: Configure an invalid path in mergetool."$merge_tool".path for a
    tool of your choice. You will be informed that the tool is available,
    but when trying to use it it will not be found because the invalid
    configured path is used.
    
    repo2: Install a tool of your choice on a nonstandard place (e.g. rename
    the program) and configure mergetool."$merge_tool".path for this tool.
    You will be informed that the tool is not available (because not found
    on standard place), but when trying to run it will work.
    
    This fix will make the information consistent by using
    get_merge_tool_path() also in is_available()
    
    Signed-off-by: Michael Schindler michael@compressconsult.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1032%2Fmichaelcompressconsult%2Fmergetoollib_is_available-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1032/michaelcompressconsult/mergetoollib_is_available-v1
Pull-Request: https://github.com/git/git/pull/1032

 git-mergetool--lib.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)