test-lib: Make colors work on FreeBSD.

Some implementations of tput don't accept capnames (bold, setaf,
sgr0) but only the older termcap capability names (md, AF, me). This
patch teaches test-lib.sh to try both variants and succeed if either
variant works.

diff --git a/t/test-lib.sh b/t/test-lib.sh
index f3768b65d573f755ea505bf282a1e106809621a2..0e702b53c9b4c4150418dc0e2a07e55949817b04 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -21,22 +21,22 @@ say_color()
        if [[ "$o_nocolor" != "true" && -n "$1" ]]; then
                export TERM=$ORIGINAL_TERM
                case "$1" in
-                       error) tput bold; tput setaf 1;;
-                       skip)  tput setaf 5;;
+                       error) tput $C_BOLD; tput $C_SETAF 1;;
+                       skip)  tput $C_SETAF 5;;
                        ok)
                                (($o_verbose == 0)) && return
-                               tput setaf 2;;
-                       pass)  tput bold; tput setaf 2;;
-                       info)  tput setaf 3;;
+                               tput $C_SETAF 2;;
+                       pass)  tput $C_BOLD; tput $C_SETAF 2;;
+                       info)  tput $C_SETAF 3;;
                        run)
                                (($o_verbose == 0)) && return
-                               tput setaf 6;;
+                               tput $C_SETAF 6;;
                esac
        fi
        shift
        printf "%s\n" "$*"
        if [[ "$o_nocolor" != "true" && -n "$1" ]]; then
-               tput sgr0
+               tput $C_SGR0
                export TERM=dumb
        fi
 }
@@ -218,9 +218,21 @@ can_use_colors()
        result="false"
        [[ "$TERM" == "dumb" ]] && return
        [[ -t 1 ]] || return
-       tput bold >/dev/null 2>&1 || return
-       tput setaf 1 >/dev/null 2>&1 || return
-       tput sgr0 >/dev/null 2>&1 || return
+       C_BOLD='bold'
+       tput $C_BOLD &>/dev/null || {
+               C_BOLD='md'
+               tput $C_BOLD &>/dev/null
+       } || return
+       C_SETAF='setaf'
+       tput $C_SETAF 1 &>/dev/null || {
+               C_SETAF='AF'
+               tput $C_SETAF 1 &>/dev/null
+       } || return
+       C_SGR0='sgr0'
+       tput $C_SGR0 >/dev/null 2>&1 || {
+               C_SGR0='me'
+               tput $C_SGR0 &>/dev/null
+       } || return
        result="true"
 }