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-rw-r--r--Documentation/.gitignore1
-rw-r--r--Documentation/Makefile22
-rw-r--r--Documentation/diff-config.txt13
-rw-r--r--Documentation/merge-config.txt12
-rw-r--r--git-mergetool--lib.sh183
5 files changed, 159 insertions, 72 deletions
diff --git a/Documentation/.gitignore b/Documentation/.gitignore
index d62aebd848..2c8b2d612e 100644
--- a/Documentation/.gitignore
+++ b/Documentation/.gitignore
@@ -9,4 +9,5 @@ gitman.info
howto-index.txt
doc.dep
cmds-*.txt
+mergetools-*.txt
manpage-base-url.xsl
diff --git a/Documentation/Makefile b/Documentation/Makefile
index ae27aa5cdd..62dbd9ac7c 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -244,7 +244,11 @@ install-html: html
#
# Determine "include::" file references in asciidoc files.
#
-doc.dep : $(wildcard *.txt) build-docdep.perl
+docdep_prereqs = \
+ mergetools-list.made $(mergetools_txt) \
+ cmd-list.made $(cmds_txt)
+
+doc.dep : $(docdep_prereqs) $(wildcard *.txt) build-docdep.perl
$(QUIET_GEN)$(RM) $@+ $@ && \
$(PERL_PATH) ./build-docdep.perl >$@+ $(QUIET_STDERR) && \
mv $@+ $@
@@ -268,13 +272,27 @@ cmd-list.made: cmd-list.perl ../command-list.txt $(MAN1_TXT)
$(PERL_PATH) ./cmd-list.perl ../command-list.txt $(QUIET_STDERR) && \
date >$@
+mergetools_txt = mergetools-diff.txt mergetools-merge.txt
+
+$(mergetools_txt): mergetools-list.made
+
+mergetools-list.made: ../git-mergetool--lib.sh $(wildcard ../mergetools/*)
+ $(QUIET_GEN)$(RM) $@ && \
+ $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
+ . ../git-mergetool--lib.sh && \
+ show_tool_names can_diff "* " || :' >mergetools-diff.txt && \
+ $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
+ . ../git-mergetool--lib.sh && \
+ show_tool_names can_merge "* " || :' >mergetools-merge.txt && \
+ date >$@
+
clean:
$(RM) *.xml *.xml+ *.html *.html+ *.1 *.5 *.7
$(RM) *.texi *.texi+ *.texi++ git.info gitman.info
$(RM) *.pdf
$(RM) howto-index.txt howto/*.html doc.dep
$(RM) technical/*.html technical/api-index.txt
- $(RM) $(cmds_txt) *.made
+ $(RM) $(cmds_txt) $(mergetools_txt) *.made
$(RM) manpage-base-url.xsl
$(MAN_HTML): %.html : %.txt asciidoc.conf
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index 6d06aa4357..7c70c2a2fe 100644
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -149,9 +149,10 @@ diff.<driver>.cachetextconv::
conversion outputs. See linkgit:gitattributes[5] for details.
diff.tool::
- The diff tool to be used by linkgit:git-difftool[1]. This
- option overrides `merge.tool`, and has the same valid built-in
- values as `merge.tool` minus "tortoisemerge" and plus
- "kompare". Any other value is treated as a custom diff tool,
- and there must be a corresponding `difftool.<tool>.cmd`
- option.
+ Controls which diff tool is used by linkgit:git-difftool[1].
+ This variable overrides the value configured in `merge.tool`.
+ The list below shows the valid built-in values.
+ Any other value is treated as a custom diff tool and requires
+ that a corresponding difftool.<tool>.cmd variable is defined.
+
+include::mergetools-diff.txt[]
diff --git a/Documentation/merge-config.txt b/Documentation/merge-config.txt
index 897329bbd9..d78d6d854e 100644
--- a/Documentation/merge-config.txt
+++ b/Documentation/merge-config.txt
@@ -52,12 +52,12 @@ merge.stat::
at the end of the merge. True by default.
merge.tool::
- Controls which merge resolution program is used by
- linkgit:git-mergetool[1]. Valid built-in values are: "araxis",
- "bc3", "diffuse", "ecmerge", "emerge", "gvimdiff", "kdiff3", "meld",
- "opendiff", "p4merge", "tkdiff", "tortoisemerge", "vimdiff"
- and "xxdiff". Any other value is treated is custom merge tool
- and there must be a corresponding mergetool.<tool>.cmd option.
+ Controls which merge tool is used by linkgit:git-mergetool[1].
+ The list below shows the valid built-in values.
+ Any other value is treated as a custom merge tool and requires
+ that a corresponding mergetool.<tool>.cmd variable is defined.
+
+include::mergetools-merge.txt[]
merge.verbosity::
Controls the amount of output shown by the recursive merge
diff --git a/git-mergetool--lib.sh b/git-mergetool--lib.sh
index 211ffe5d32..e338be5e57 100644
--- a/git-mergetool--lib.sh
+++ b/git-mergetool--lib.sh
@@ -1,6 +1,82 @@
#!/bin/sh
# git-mergetool--lib is a library for common merge tool functions
-MERGE_TOOLS_DIR=$(git --exec-path)/mergetools
+
+: ${MERGE_TOOLS_DIR=$(git --exec-path)/mergetools}
+
+mode_ok () {
+ if diff_mode
+ then
+ can_diff
+ elif merge_mode
+ then
+ can_merge
+ else
+ false
+ fi
+}
+
+is_available () {
+ merge_tool_path=$(translate_merge_tool_path "$1") &&
+ type "$merge_tool_path" >/dev/null 2>&1
+}
+
+list_config_tools () {
+ section=$1
+ line_prefix=${2:-}
+
+ git config --get-regexp $section'\..*\.cmd' |
+ while read -r key value
+ do
+ toolname=${key#$section.}
+ toolname=${toolname%.cmd}
+
+ printf "%s%s\n" "$line_prefix" "$toolname"
+ done
+}
+
+show_tool_names () {
+ condition=${1:-true} per_line_prefix=${2:-} preamble=${3:-}
+ not_found_msg=${4:-}
+ extra_content=${5:-}
+
+ shown_any=
+ ( cd "$MERGE_TOOLS_DIR" && ls ) | {
+ while read toolname
+ do
+ if setup_tool "$toolname" 2>/dev/null &&
+ (eval "$condition" "$toolname")
+ then
+ if test -n "$preamble"
+ then
+ printf "%s\n" "$preamble"
+ preamble=
+ fi
+ shown_any=yes
+ printf "%s%s\n" "$per_line_prefix" "$toolname"
+ fi
+ done
+
+ if test -n "$extra_content"
+ then
+ if test -n "$preamble"
+ then
+ # Note: no '\n' here since we don't want a
+ # blank line if there is no initial content.
+ printf "%s" "$preamble"
+ preamble=
+ fi
+ shown_any=yes
+ printf "\n%s\n" "$extra_content"
+ fi
+
+ if test -n "$preamble" && test -n "$not_found_msg"
+ then
+ printf "%s\n" "$not_found_msg"
+ fi
+
+ test -n "$shown_any"
+ }
+}
diff_mode() {
test "$TOOL_MODE" = diff
@@ -32,17 +108,10 @@ check_unchanged () {
fi
}
-valid_tool_config () {
- if test -n "$(get_merge_tool_cmd "$1")"
- then
- return 0
- else
- return 1
- fi
-}
-
valid_tool () {
- setup_tool "$1" || valid_tool_config "$1"
+ setup_tool "$1" && return 0
+ cmd=$(get_merge_tool_cmd "$1")
+ test -n "$cmd"
}
setup_tool () {
@@ -96,14 +165,13 @@ setup_tool () {
}
get_merge_tool_cmd () {
- # Prints the custom command for a merge tool
merge_tool="$1"
if diff_mode
then
- echo "$(git config difftool.$merge_tool.cmd ||
- git config mergetool.$merge_tool.cmd)"
+ git config "difftool.$merge_tool.cmd" ||
+ git config "mergetool.$merge_tool.cmd"
else
- echo "$(git config mergetool.$merge_tool.cmd)"
+ git config "mergetool.$merge_tool.cmd"
fi
}
@@ -114,7 +182,7 @@ run_merge_tool () {
GIT_PREFIX=${GIT_PREFIX:-.}
export GIT_PREFIX
- merge_tool_path="$(get_merge_tool_path "$1")" || exit
+ merge_tool_path=$(get_merge_tool_path "$1") || exit
base_present="$2"
status=0
@@ -145,7 +213,7 @@ run_merge_tool () {
# Run a either a configured or built-in diff tool
run_diff_cmd () {
- merge_tool_cmd="$(get_merge_tool_cmd "$1")"
+ merge_tool_cmd=$(get_merge_tool_cmd "$1")
if test -n "$merge_tool_cmd"
then
( eval $merge_tool_cmd )
@@ -158,11 +226,11 @@ run_diff_cmd () {
# Run a either a configured or built-in merge tool
run_merge_cmd () {
- merge_tool_cmd="$(get_merge_tool_cmd "$1")"
+ merge_tool_cmd=$(get_merge_tool_cmd "$1")
if test -n "$merge_tool_cmd"
then
- trust_exit_code="$(git config --bool \
- mergetool."$1".trustExitCode || echo false)"
+ trust_exit_code=$(git config --bool \
+ "mergetool.$1.trustExitCode" || echo false)
if test "$trust_exit_code" = "false"
then
touch "$BACKUP"
@@ -207,37 +275,35 @@ list_merge_tool_candidates () {
}
show_tool_help () {
- unavailable= available= LF='
-'
- for i in "$MERGE_TOOLS_DIR"/*
- do
- tool=$(basename "$i")
- setup_tool "$tool" 2>/dev/null || continue
+ tool_opt="'git ${TOOL_MODE}tool --tool-<tool>'"
- merge_tool_path=$(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
+ tab=' '
+ LF='
+'
+ any_shown=no
cmd_name=${TOOL_MODE}tool
- if test -n "$available"
+ config_tools=$({
+ diff_mode && list_config_tools difftool "$tab$tab"
+ list_config_tools mergetool "$tab$tab"
+ } | sort)
+ extra_content=
+ if test -n "$config_tools"
then
- echo "'git $cmd_name --tool=<tool>' may be set to one of the following:"
- echo "$available" | sort | sed -e 's/^/ /'
- 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 "$unavailable" | sort | sed -e 's/^/ /'
+ extra_content="${tab}user-defined:${LF}$config_tools"
fi
- if test -n "$unavailable$available"
+
+ show_tool_names 'mode_ok && is_available' "$tab$tab" \
+ "$tool_opt may be set to one of the following:" \
+ "No suitable tool for 'git $cmd_name --tool=<tool>' found." \
+ "$extra_content" &&
+ any_shown=yes
+
+ show_tool_names 'mode_ok && ! is_available' "$tab$tab" \
+ "${LF}The following tools are valid, but not currently available:" &&
+ any_shown=yes
+
+ if test "$any_shown" = yes
then
echo
echo "Some of the tools listed above only work in a windowed"
@@ -248,20 +314,21 @@ show_tool_help () {
guess_merge_tool () {
list_merge_tool_candidates
- echo >&2 "merge tool candidates: $tools"
+ cat >&2 <<-EOF
+
+ This message is displayed because '$TOOL_MODE.tool' is not configured.
+ See 'git ${TOOL_MODE}tool --tool-help' or 'git help config' for more details.
+ 'git ${TOOL_MODE}tool' will now attempt to use one of the following tools:
+ $tools
+ EOF
# Loop over each candidate and stop when a valid merge tool is found.
- for i in $tools
+ for tool in $tools
do
- merge_tool_path="$(translate_merge_tool_path "$i")"
- if type "$merge_tool_path" >/dev/null 2>&1
- then
- echo "$i"
- return 0
- fi
+ is_available "$tool" && echo "$tool" && return 0
done
- echo >&2 "No known merge resolution program available."
+ echo >&2 "No known ${TOOL_MODE} tool is available."
return 1
}
@@ -300,7 +367,7 @@ get_merge_tool_path () {
fi
if test -z "$merge_tool_path"
then
- merge_tool_path="$(translate_merge_tool_path "$merge_tool")"
+ merge_tool_path=$(translate_merge_tool_path "$merge_tool")
fi
if test -z "$(get_merge_tool_cmd "$merge_tool")" &&
! type "$merge_tool_path" >/dev/null 2>&1
@@ -314,11 +381,11 @@ get_merge_tool_path () {
get_merge_tool () {
# Check if a merge tool has been configured
- merge_tool="$(get_configured_merge_tool)"
+ merge_tool=$(get_configured_merge_tool)
# Try to guess an appropriate merge tool if no tool has been set.
if test -z "$merge_tool"
then
- merge_tool="$(guess_merge_tool)" || exit
+ merge_tool=$(guess_merge_tool) || exit
fi
echo "$merge_tool"
}