[ptxdist] [PATCH 3/3] ptxd_make_world_compile.sh: conditionally redirect stderr>stdout

[jon]

From: Jon Ringle <jrin...@gridpoint.com>

I discovered after updating to a new version of ptxdist that all of my
compile output including errors/warnings are now all going to stdout
instead of having the errors/warning going to stderr.

This is causing some problem when I use qtcreator as my IDE because
qtcreator will only filter stderr for errors/warnings to put into the
Issues tab, where one can simply click on the error/warning and be taken
right to the source line where the error/warning is found.

I found that this problem was introduced by commit
30b9267e35eea1c2edb4da0231a428bfa25b6766

This patch will conditionally redirect stderr>stdout on compile output
if ptxdist has output synchronization enabled.

This small program demonstrates the behavior with this patch applied:

$ cat local_src/testprog/testprog.c
#include <stdio.h>
#include <stdlib.h>

#error An error here
int main(int argc, char *argv[])
{
        printf("Hello World, I'm testprog!\n");

        exit(EXIT_SUCCESS);
}

$ ptxdist compile testprog >/dev/null
testprog.c:4:2: error: #error An error here
 #error An error here
  ^
make[1]: *** [testprog] Error 1
make: *** 
[/home/jringle-admin/code/gpec/ec1k-rootfs/platform-EC1K/state/testprog.compile]
 Error 2

$ ptxdist compile --output-sync testprog >/dev/null
make: *** 
[/home/jringle-admin/code/gpec/ec1k-rootfs/platform-EC1K/state/testprog.compile]
 Error 2

$ ptxdist compile --no-output-sync testprog >/dev/null
testprog.c:4:2: error: #error An error here
 #error An error here
  ^
make[1]: *** [testprog] Error 1
make: *** 
[/home/jringle-admin/code/gpec/ec1k-rootfs/platform-EC1K/state/testprog.compile]
 Error 2

Signed-off-by: Jon Ringle <jrin...@gridpoint.com>
---
 bin/ptxdist                            |  7 ++++++-
 scripts/lib/ptxd_make_world_compile.sh | 10 ++++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/bin/ptxdist b/bin/ptxdist
index 1e3c53a..7a5b0e4 100755
--- a/bin/ptxdist
+++ b/bin/ptxdist
@@ -2383,6 +2383,7 @@ setup_config() {
 #      PTXDIST_PARALLELMFLAGS_INTERN
 #      PTXDIST_PARALLELMFLAGS_EXTERN
 #      PTXDIST_OUTPUT_SYNC
+#      PTXDIST_STDERR_REDIRECT
 #
 setup_parallel() {
        # default no parallel for now
@@ -2415,15 +2416,18 @@ setup_parallel() {
        fi
 
        PTXDIST_OUTPUT_SYNC="${PTXDIST_OUTPUT_SYNC:-${PTXDIST_QUIET}}"
+       PTXDIST_STDERR_REDIRECT=2
        if [ "${PTXDIST_OUTPUT_SYNC}" == "1" ]; then
                if "${PTXCONF_SETUP_HOST_MAKE}" -h | grep -q -- --output-sync; 
then
                        PTXDIST_OUTPUT_SYNC="--output-sync="
                fi
+               PTXDIST_STDERR_REDIRECT=1
        fi
        if [[ "${PTXDIST_OUTPUT_SYNC}" =~ [01] ]]; then
                unset PTXDIST_OUTPUT_SYNC
        fi
 
+
        #
        # user may override these, via cmdline
        #
@@ -2720,7 +2724,8 @@ setup_export() {
                PTXDIST_OUTPUT_SYNC \
                PTXDIST_PEDANTIC \
                PTXDIST_QUIET \
-               PTXDIST_VERBOSE
+               PTXDIST_VERBOSE \
+               PTXDIST_STDERR_REDIRECT
 }
 
 
diff --git a/scripts/lib/ptxd_make_world_compile.sh 
b/scripts/lib/ptxd_make_world_compile.sh
index 9cc739e..cbaf355 100644
--- a/scripts/lib/ptxd_make_world_compile.sh
+++ b/scripts/lib/ptxd_make_world_compile.sh
@@ -11,6 +11,8 @@
 # call the compiler
 #
 ptxd_make_world_compile() {
+
+    ( exec 2>&${PTXDIST_STDERR_REDIRECT}
     ptxd_make_world_init &&
 
     if [ -z "${pkg_build_dir}" ]; then
@@ -28,7 +30,7 @@ ptxd_make_world_compile() {
            "${ptx_build_python}" \
            setup.py \
            "${pkg_make_opt}"
-       ) 2>&1
+       )
        ;;
        meson)
        ptxd_eval \
@@ -37,7 +39,7 @@ ptxd_make_world_compile() {
            "${pkg_make_env}" \
            ninja -C "${pkg_build_dir}" \
            "${pkg_make_opt}" \
-           "${pkg_make_par}" 2>&1
+           "${pkg_make_par}"
        ;;
        *)
        ptxd_eval \
@@ -46,8 +48,8 @@ ptxd_make_world_compile() {
            "${pkg_make_env}" \
            "${MAKE}" -C "${pkg_build_dir}" \
            "${pkg_make_opt}" \
-           "${pkg_make_par}" 2>&1
+           "${pkg_make_par}"
        ;;
-    esac
+    esac )
 }
 export -f ptxd_make_world_compile
-- 
1.9.1


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