Re: [PATCH v2 1/8] travis-ci: use 'set -x' in select 'ci/*' scripts for extra tracing

> On 16 Dec 2017, at 13:54, SZEDER Gábor <szeder.dev@gmail.com> wrote:
> 
> While the build logic was embedded in our '.travis.yml', Travis CI
> used to produce a nice trace log including all commands executed in
> those embedded scriptlets.  Since 657343a60 (travis-ci: move Travis CI
> code into dedicated scripts, 2017-09-10), however, we only see the
> name of the dedicated scripts, but not what those scripts are actually
> doing, resulting in a less useful trace log about e.g. installing
> dependencies.  A patch later in this series will move setting
> environment variables from '.travis.yml' to 'ci/lib-travisci.sh', so
> not even those will be included in the trace log.  Unrelated to
> 657343a60, 'ci/test-documentation.sh' runs a bunch of 'test -s <file>'
> checks which would fail quietly if something were wrong, leaving no
> clue about which one of those checks triggered the failure.
> 
> Use 'set -x' in 'ci/lib-travisci.sh' to get more detailed trace log
> about the commands executed in the 'ci/*' scripts.  Use it in
> 'ci/run-linux32-build.sh' as well, which is run in a Docker container
> and therefore doesn't source 'ci/lib-travisci.sh'.  The secret token
> used for the Windows builds is specified as an encrypted environment
> variable in git/git repository settings on Travis CI and it's redacted
> in the trace logs even with 'set -x'.  However, disable this tracing
> in 'ci/print-test-failures.sh', as it produces far too much noise in
> the output of that script.

> 
> Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
> ---
> ci/lib-travisci.sh        | 6 ++++--
> ci/print-test-failures.sh | 3 +++
> ci/run-linux32-build.sh   | 2 ++
> 3 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/ci/lib-travisci.sh b/ci/lib-travisci.sh
> index ac05f1f46..2d0d1d613 100755
> --- a/ci/lib-travisci.sh
> +++ b/ci/lib-travisci.sh
> @@ -22,8 +22,10 @@ skip_branch_tip_with_tag () {
> }
> 
> # Set 'exit on error' for all CI scripts to let the caller know that
> -# something went wrong
> -set -e
> +# something went wrong.
> +# Set tracing executed commands, primarily setting environment variables
> +# and installing dependencies.
> +set -ex
> 
> skip_branch_tip_with_tag
> 
> diff --git a/ci/print-test-failures.sh b/ci/print-test-failures.sh
> index 8c8973cbf..f757e616c 100755
> --- a/ci/print-test-failures.sh
> +++ b/ci/print-test-failures.sh
> @@ -5,6 +5,9 @@
> 
> . ${0%/*}/lib-travisci.sh
> 
> +# Tracing executed commands would produce too much noise in this script.
> +set +x
> +
> for TEST_EXIT in t/test-results/*.exit
> do
> 	if [ "$(cat "$TEST_EXIT")" != "0" ]
> diff --git a/ci/run-linux32-build.sh b/ci/run-linux32-build.sh
> index e30fb2cdd..a8518eddf 100755
> --- a/ci/run-linux32-build.sh
> +++ b/ci/run-linux32-build.sh
> @@ -6,6 +6,8 @@
> #   run-linux32-build.sh [host-user-id]
> #
> 
> +set -x
> +
> # Update packages to the latest available versions
> linux32 --32bit i386 sh -c '
>     apt update >/dev/null &&
> -- 
> 2.15.1.429.ga000dd9c7
>