On Sun, Jan 27, 2013 at 04:52:25PM -0800, David Aguilar wrote:
> --- a/git-mergetool--lib.sh
> +++ b/git-mergetool--lib.sh
> @@ -2,6 +2,35 @@
> # git-mergetool--lib is a library for common merge tool functions
> MERGE_TOOLS_DIR=$(git --exec-path)/mergetools
>
> +mode_ok () {
> + diff_mode && can_diff ||
> + merge_mode && can_merge
> +}
> +
> +is_available () {
> + merge_tool_path=$(translate_merge_tool_path "$1") &&
> + type "$merge_tool_path" >/dev/null 2>&1
> +}
> +
> +show_tool_names () {
> + condition=${1:-true} per_line_prefix=${2:-} preamble=${3:-}
> +
> + ( cd "$MERGE_TOOLS_DIR" && ls -1 * ) |
Is the '*' necessary here? I would expect ls to list the current
directory if given no arguments, but perhaps some platforms behave
differently?
> + while read toolname
> + do
> + if setup_tool "$toolname" 2>/dev/null &&
> + (eval "$condition" "$toolname")
> + then
> + if test -n "$preamble"
> + then
> + echo "$preamble"
> + preamble=
> + fi
> + printf "%s%s\n" "$per_line_prefix" "$tool"
> + fi
> + done
> +}
> +
> diff_mode() {
> test "$TOOL_MODE" = diff
> }
> @@ -199,35 +228,21 @@ list_merge_tool_candidates () {
> }
>
> show_tool_help () {
> - unavailable= available= LF='
> -'
> - for i in "$MERGE_TOOLS_DIR"/*
> - do
> - tool=$(basename "$i")
> - setup_tool "$tool" 2>/dev/null || continue
> -
> - merge_tool_path=$(translate_merge_tool_path "$tool")
> - if type "$merge_tool_path" >/dev/null 2>&1
> - then
> - available="$available$tool$LF"
> - else
> - unavailable="$unavailable$tool$LF"
> - fi
> - done
> -
> - cmd_name=${TOOL_MODE}tool
> + tool_opt="'git ${TOOL_MODE}tool --tool-<tool>'"
> + available=$(show_tool_names 'mode_ok && is_available' '\t\t' \
> + "$tool_opt may be set to one of the following:")
> + unavailable=$(show_tool_names 'mode_ok && ! is_available' '\t\t' \
> + "The following tools are valid, but not currently available:")
> if test -n "$available"
> then
> - echo "'git $cmd_name --tool=<tool>' may be set to one of the
> following:"
> - echo "$available" | sort | sed -e 's/^/ /'
> + echo "$available"
> else
> echo "No suitable tool for 'git $cmd_name --tool=<tool>' found."
> fi
> if test -n "$unavailable"
> then
> echo
> - echo 'The following tools are valid, but not currently
> available:'
> - echo "$unavailable" | sort | sed -e 's/^/ /'
> + echo "$unavailable"
> fi
> if test -n "$unavailable$available"
> then
You haven't taken full advantage of the simplification Junio suggested
in response to v1 here. We can change the "unavailable" block to be:
show_tool_names 'mode_ok && ! is_available' "$TAB$TAB" \
"${LF}The following tools are valid, but not currently available:"
If you also add a "not_found_msg" parameter to show_tool_names then the
"available" case is also simplified:
show_tool_names 'mode_ok && is_available' "$TAB$TAB" \
"$tool_opt may be set to one of the following:" \
"No suitable tool for 'git $cmd_name --tool=<tool>' found."
with this at the end of show_tool_names:
test -n "$preamble" && test -n "$not_found_msg" && \
echo "$not_found_msg"
John
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