[PATCH] git-web--browser: avoid errors in terminal when running Firefox on Windows

[Alexey Shumkin <alex.crezoff@gmail.com>]

Firefox on Windows by default is placed in "C:\Program Files\Mozilla Firefox"
folder, i.e. its path contains spaces. Before running this browser "git-web--browse"
tests version of Firefox to decide whether to use "-new-tab" option or not.

Quote browser path to avoid error during this test.

Signed-off-by: Alexey Shumkin <Alex.Crezoff@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
---
 git-web--browse.sh         |  2 +-
 t/t9901-git-web--browse.sh | 57 +++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 57 insertions(+), 2 deletions(-)

diff --git a/git-web--browse.sh b/git-web--browse.sh
index 1e82726..f96e5bd 100755
--- a/git-web--browse.sh
+++ b/git-web--browse.sh
@@ -149,7 +149,7 @@ fi
 case "$browser" in
 firefox|iceweasel|seamonkey|iceape)
 	# Check version because firefox < 2.0 does not support "-new-tab".
-	vers=$(expr "$($browser_path -version)" : '.* \([0-9][0-9]*\)\..*')
+	vers=$(expr "$("$browser_path" -version)" : '.* \([0-9][0-9]*\)\..*')
 	NEWTAB='-new-tab'
 	test "$vers" -lt 2 && NEWTAB=''
 	"$browser_path" $NEWTAB "$@" &
diff --git a/t/t9901-git-web--browse.sh b/t/t9901-git-web--browse.sh
index b0a6bad..30d5294 100755
--- a/t/t9901-git-web--browse.sh
+++ b/t/t9901-git-web--browse.sh
@@ -8,8 +8,21 @@ This test checks that git web--browse can handle various valid URLs.'
 . ./test-lib.sh
 
 test_web_browse () {
-	# browser=$1 url=$2
+	# browser=$1 url=$2 sleep_timeout=$3
+	sleep_timeout="$3"
 	git web--browse --browser="$1" "$2" >actual &&
+	# if $3 is set
+	# as far as Firefox is run in background (it is run with &)
+	# we trying to avoid race condition
+	# by waiting for "$sleep_timeout" seconds of timeout for 'fake_browser_ran' file appearance
+	(test -z "$sleep_timeout" || (
+	    for timeout in $(seq 1 $sleep_timeout); do
+			test -f fake_browser_ran && break
+			sleep 1
+		done
+		test $timeout -ne $sleep_timeout
+		)
+	) &&
 	tr -d '\015' <actual >text &&
 	test_cmp expect text
 }
@@ -48,6 +61,48 @@ test_expect_success \
 '
 
 test_expect_success \
+	'Firefox below v2.0 paths are properly quoted' '
+	echo fake: http://example.com/foo >expect &&
+	rm -f fake_browser_ran &&
+	cat >"fake browser" <<-\EOF &&
+	#!/bin/sh
+
+	: > fake_browser_ran
+	if test "$1" = "-version"; then
+		echo Fake Firefox browser version 1.2.3
+	else
+		# Firefox (in contrast to w3m) is run in background (with &)
+		# so redirect output to "actual"
+		echo fake: "$@" > actual
+	fi
+	EOF
+	chmod +x "fake browser" &&
+	git config browser.firefox.path "`pwd`/fake browser" &&
+	test_web_browse firefox http://example.com/foo 5
+'
+
+test_expect_success \
+	'Firefox not lower v2.0 paths are properly quoted' '
+	echo fake: -new-tab http://example.com/foo >expect &&
+	rm -f fake_browser_ran &&
+	cat >"fake browser" <<-\EOF &&
+	#!/bin/sh
+
+	: > fake_browser_ran
+	if test "$1" = "-version"; then
+		echo Fake Firefox browser version 2.0.0
+	else
+		# Firefox (in contrast to w3m) is run in background (with &)
+		# so redirect output to "actual"
+		echo fake: "$@" > actual
+	fi
+	EOF
+	chmod +x "fake browser" &&
+	git config browser.firefox.path "`pwd`/fake browser" &&
+	test_web_browse firefox http://example.com/foo 5
+'
+
+test_expect_success \
 	'browser command allows arbitrary shell code' '
 	echo "arg: http://example.com/foo" >expect &&
 	git config browser.custom.cmd "
-- 
1.8.1.1.10.g9255f3f