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[PATCH] test-lib.sh: do tests for color support after changing HOME

From
RHRichard Hansen <rhansen@bbn.com>
Date
Jan 5, 2015, 18:54 UTC
Message-ID
<1420484054-15948-1-git-send-email-rhansen@bbn.com>

If ncurses needs ~/.terminfo for the current $TERM, then tput will succeed before changing HOME to $TRASH_DIRECTORY but fail afterward. Move the tests that determine whether there is color support after changing HOME so that color=t is set if and only if tput would succeed when say_color() is run.

This disables color support for those that need ~/.terminfo for their TERM, but it's better than filling the screen with:

    tput: unknown terminal "custom-terminal-name-here"

An alternative would be to symlink or copy the user's terminfo database into $TRASH_DIRECTORY, but this is tricky due to the lack of a standard name for the terminfo database (for example, instead of a ~/.terminfo directory, NetBSD uses a ~/.terminfo.cdb database file).

Signed-off-by: Richard Hansen <rhansen@bbn.com>
---
 t/test-lib.sh | 90 +++++++++++++++++++++++++++++++----------------------------
 1 file changed, 47 insertions(+), 43 deletions(-)
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 9acdc88..65ecbed 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -184,16 +184,8 @@ export _x05 _x40 _z40 LF u200c
 # This test checks if command xyzzy does the right thing...
 # '
 # . ./test-lib.sh
-[ "x$ORIGINAL_TERM" != "xdumb" ] && (
-		TERM=$ORIGINAL_TERM &&
-		export TERM &&
-		[ -t 1 ] &&
-		tput bold >/dev/null 2>&1 &&
-		tput setaf 1 >/dev/null 2>&1 &&
-		tput sgr0 >/dev/null 2>&1
-	) &&
-	color=t
 
+unset color
 while test "$#" -ne 0
 do
 	case "$1" in
@@ -258,40 +250,6 @@ then
 	verbose=t
 fi
 
-if test -n "$color"
-then
-	say_color () {
-		(
-		TERM=$ORIGINAL_TERM
-		export TERM
-		case "$1" in
-		error)
-			tput bold; tput setaf 1;; # bold red
-		skip)
-			tput setaf 4;; # blue
-		warn)
-			tput setaf 3;; # brown/yellow
-		pass)
-			tput setaf 2;; # green
-		info)
-			tput setaf 6;; # cyan
-		*)
-			test -n "$quiet" && return;;
-		esac
-		shift
-		printf "%s" "$*"
-		tput sgr0
-		echo
-		)
-	}
-else
-	say_color() {
-		test -z "$1" && test -n "$quiet" && return
-		shift
-		printf "%s\n" "$*"
-	}
-fi
-
 error () {
 	say_color error "error: $*"
 	GIT_EXIT_OK=t
@@ -857,6 +815,52 @@ HOME="$TRASH_DIRECTORY"
 GNUPGHOME="$HOME/gnupg-home-not-used"
 export HOME GNUPGHOME
 
+# run the tput tests *after* changing HOME (in case ncurses needs
+# ~/.terminfo for $TERM)
+test -n "${color+set}" || [ "x$ORIGINAL_TERM" != "xdumb" ] && (
+		TERM=$ORIGINAL_TERM &&
+		export TERM &&
+		[ -t 1 ] &&
+		tput bold >/dev/null 2>&1 &&
+		tput setaf 1 >/dev/null 2>&1 &&
+		tput sgr0 >/dev/null 2>&1
+	) &&
+	color=t
+
+if test -n "$color"
+then
+	say_color () {
+		(
+		TERM=$ORIGINAL_TERM
+		export TERM
+		case "$1" in
+		error)
+			tput bold; tput setaf 1;; # bold red
+		skip)
+			tput setaf 4;; # blue
+		warn)
+			tput setaf 3;; # brown/yellow
+		pass)
+			tput setaf 2;; # green
+		info)
+			tput setaf 6;; # cyan
+		*)
+			test -n "$quiet" && return;;
+		esac
+		shift
+		printf "%s" "$*"
+		tput sgr0
+		echo
+		)
+	}
+else
+	say_color() {
+		test -z "$1" && test -n "$quiet" && return
+		shift
+		printf "%s\n" "$*"
+	}
+fi
+
 if test -z "$TEST_NO_CREATE_REPO"
 then
 	test_create_repo "$TRASH_DIRECTORY"
-- 
2.2.1
Next: Junio C Hamano
Message 1 of 5 in “test-lib.sh: do tests for color support after changing HOME”
  1. test-lib.sh: do tests for color support after changing HOMERichard Hansen, Jan 5, 2015
  2. Junio C HamanoJan 6, 2015
  3. 0/2 test-lib.sh: do tests for color support after changing HOMERichard Hansen, Jan 6, 2015
  4. 1/2 use 'test ...' instead of '[ ... ]'Richard Hansen, Jan 6, 2015
  5. 2/2 test-lib.sh: do tests for color support after changing HOMERichard Hansen, Jan 6, 2015

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