Thread (5 messages) flat view 5 messages, 3 authors, 2016-06-15
STALE3720d

[PATCH] git-difftool: allow skipping file by typing 'n' at prompt

From: Sitaram Chamarty <hidden>
Date: 2016-06-15 22:52:12
Subsystem: the rest · Maintainer: Linus Torvalds

Possibly related (same subject, not in this thread)

This is useful if you forgot to restrict the diff to the paths you want
to see, or selecting precisely the ones you want is too much typing.

Signed-off-by: Sitaram Chamarty <redacted>
---

On Fri, Oct 07, 2011 at 01:09:11PM -0700, Junio C Hamano wrote:
Looks OK from a cursory viewing. Do we want some additional tests?

For that matter, have you run the test suite with this patch applied (I
haven't)?
OK; done.  I got some "broken" but nothing "failed":

    make aggregate-results
    make[3]: Entering directory `/home/sitaram/clones/git/t'
    for f in test-results/t*-*.counts; do \
            echo "$f"; \
    done | '/bin/sh' ./aggregate-results.sh
    fixed   0
    success 7377
    failed  0
    broken  49
    total   7461

Hope that is not a problem.

However, I'm not sure the file names that 'git difftool'
comes up with are in a predictable order.  That would mess
up the test, but I can neither make it fail not find
definitive information on the order in which the changed
files are processed.

 git-difftool--helper.sh |    9 +++++----
 t/t7800-difftool.sh     |   44 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 48 insertions(+), 5 deletions(-)
diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh
index 8452890..0468446 100755
--- a/git-difftool--helper.sh
+++ b/git-difftool--helper.sh
@@ -38,15 +38,16 @@ launch_merge_tool () {
 
 	# $LOCAL and $REMOTE are temporary files so prompt
 	# the user with the real $MERGED name before launching $merge_tool.
+	ans=y
 	if should_prompt
 	then
 		printf "\nViewing: '$MERGED'\n"
 		if use_ext_cmd
 		then
-			printf "Hit return to launch '%s': " \
+			printf "Launch '%s' [Y/n]: " \
 				"$GIT_DIFFTOOL_EXTCMD"
 		else
-			printf "Hit return to launch '%s': " "$merge_tool"
+			printf "Launch '%s' [Y/n]: " "$merge_tool"
 		fi
 		read ans
 	fi
@@ -54,9 +55,9 @@ launch_merge_tool () {
 	if use_ext_cmd
 	then
 		export BASE
-		eval $GIT_DIFFTOOL_EXTCMD '"$LOCAL"' '"$REMOTE"'
+		test "$ans" != "n" && eval $GIT_DIFFTOOL_EXTCMD '"$LOCAL"' '"$REMOTE"'
 	else
-		run_merge_tool "$merge_tool"
+		test "$ans" != "n" && run_merge_tool "$merge_tool"
 	fi
 }
 
diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 395adfc..f547e0b 100755
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -38,7 +38,18 @@ restore_test_defaults()
 prompt_given()
 {
 	prompt="$1"
-	test "$prompt" = "Hit return to launch 'test-tool': branch"
+	test "$prompt" = "Launch 'test-tool' [Y/n]: branch"
+}
+
+stdin_contains()
+{
+	grep >/dev/null "$1"
+}
+
+stdin_doesnot_contain()
+{
+	grep >/dev/null "$1" && return 1
+	return 0
 }
 
 # Create a file on master and change it on branch
@@ -265,4 +276,35 @@ test_expect_success PERL 'difftool --extcmd cat arg2' '
 	test "$diff" = branch
 '
 
+# Create a second file on master and a different version on branch
+test_expect_success PERL 'setup with 2 files different' '
+	echo m2 >file2 &&
+	git add file2 &&
+	git commit -m "added file2" &&
+
+	git checkout branch &&
+	echo br2 >file2 &&
+	git add file2 &&
+	git commit -a -m "branch changed file2" &&
+	git checkout master
+'
+
+test_expect_success PERL 'say no to the first file' '
+	diff=$((echo n; echo) | git difftool -x cat branch) &&
+
+	echo "$diff" | stdin_contains m2 &&
+	echo "$diff" | stdin_contains br2 &&
+	echo "$diff" | stdin_doesnot_contain master &&
+	echo "$diff" | stdin_doesnot_contain branch
+'
+
+test_expect_success PERL 'say no to the second file' '
+	diff=$((echo; echo n) | git difftool -x cat branch) &&
+
+	echo "$diff" | stdin_contains master &&
+	echo "$diff" | stdin_contains branch &&
+	echo "$diff" | stdin_doesnot_contain m2 &&
+	echo "$diff" | stdin_doesnot_contain br2
+'
+
 test_done
-- 
1.7.6
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