[PATCH iproute2 1/1] testsuite: Fix colorize

[PATCH iproute2 1/1] testsuite: Fix colorize

[Petr Vorel]

bash and dash require for escape sequence to use 'echo -e' or printf
(but working on zsh). Choosing printf as it's implementation is IMHO
more portable than echo implementations.
dash also require to use \033[0; as escape sequence instead of \e[0;

NOTE: \e[0; kept in lib/color.c as it's not problematic for C code
(working when run ip on various shells).

Fixes: 7e2f71b4 ("testsuite: colorize test result output")

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 testsuite/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/testsuite/Makefile b/testsuite/Makefile
index 9b0f1c15..7f247bbc 100644
--- a/testsuite/Makefile
+++ b/testsuite/Makefile
@@ -85,11 +85,11 @@ endif
 		TC="$$i/tc/tc" IP="$$i/ip/ip" SS=$$i/misc/ss DEV="$(DEV)" IPVER="$@" SNAME="$$i" \
 		ERRF="$(RESULTS_DIR)/$@.$$o.err" $(PREFIX) tests/$@ > $(RESULTS_DIR)/$@.$$o.out; \
 		if [ "$$?" = "127" ]; then \
-			echo "\e[1;35mSKIPPED\e[0m"; \
+			printf "\033[1;35mSKIPPED\033[0m\n"; \
 		elif [ -e "$(RESULTS_DIR)/$@.$$o.err" ]; then \
-			echo "\e[0;31mFAILED\e[0m"; \
+			printf "\033[0;31mFAILED\033[0m\n"; \
 		else \
-			echo "\e[0;32mPASS\e[0m"; \
+			printf "\033[0;32mPASS\033[0m\n"; \
 		fi; \
 		rm "$$TMP_ERR" "$$TMP_OUT"; \
 		sudo dmesg > $(RESULTS_DIR)/$@.$$o.dmesg; \
-- 
2.19.2

Re: [PATCH iproute2 1/1] testsuite: Fix colorize

[Stephen Hemminger]

On Tue, 18 Dec 2018 20:29:04 +0100
Petr Vorel <pvorel@suse.cz> wrote:

> bash and dash require for escape sequence to use 'echo -e' or printf
> (but working on zsh). Choosing printf as it's implementation is IMHO
> more portable than echo implementations.
> dash also require to use \033[0; as escape sequence instead of \e[0;
> 
> NOTE: \e[0; kept in lib/color.c as it's not problematic for C code
> (working when run ip on various shells).
> 
> Fixes: 7e2f71b4 ("testsuite: colorize test result output")
> 
> Signed-off-by: Petr Vorel <pvorel@suse.cz>

Sure applied. Not sure why people expect tests to work without
bash. Next they will want it to work with clang on BSD...

Re: [PATCH iproute2 1/1] testsuite: Fix colorize

[Petr Vorel]

Hi Stephen,

> On Tue, 18 Dec 2018 20:29:04 +0100
> Petr Vorel <pvorel@suse.cz> wrote:

> > bash and dash require for escape sequence to use 'echo -e' or printf
> > (but working on zsh). Choosing printf as it's implementation is IMHO
> > more portable than echo implementations.
> > dash also require to use \033[0; as escape sequence instead of \e[0;

> > NOTE: \e[0; kept in lib/color.c as it's not problematic for C code
> > (working when run ip on various shells).

> > Fixes: 7e2f71b4 ("testsuite: colorize test result output")

> > Signed-off-by: Petr Vorel <pvorel@suse.cz>

> Sure applied. Not sure why people expect tests to work without
> bash. Next they will want it to work with clang on BSD...

Understand your frustration about useless fixes, but actually the reason for me
to fail this patch was that it does not work on bash on Tumbleweed:

Now testing on Debian and it's working.

Not sure what causes that as echo "\e[0;32mPASS\e[0m" run in bash is broken on
both (both distros have bash version 4.4.23(1)-release):
$ echo "\e[0;32mPASS\e[0m"
\e[0;32mPASS\e[0m

Kind regards,
Petr