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travis-ci: set GIT_TEST_HTTPD in 'ci/lib-travisci.sh'

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Commit 657343a60 (travis-ci: move Travis CI code into dedicated
scripts, 2017-09-10) converted '.travis.yml's default 'before_install'
scriptlet to the 'ci/install-dependencies.sh' script, and while doing
so moved setting GIT_TEST_HTTPD=YesPlease for the 64-bit GCC and Clang
Linux build jobs to that script.  This is wrong for two reasons:

 - The purpose of that script is, as its name suggests, to install
   dependencies, not to set any environment variables influencing
   which tests should be run (though, arguably, this was already an
   issue with the original 'before_install' scriptlet).

 - Setting the variable has no effect anymore, because that script is
   run in a separate shell process, and the variable won't be visible
   in any of the other scripts, notably in 'ci/run-tests.sh'
   responsible for, well, running the tests.

Luckily, this didn't have a negative effect on our Travis CI build
jobs, because GIT_TEST_HTTPD is a tri-state variable defaulting to
"auto" and a functioning web server was installed in those Linux build
jobs, so the httpd tests were run anyway.

Apparently the httpd tests run just fine without GIT_TEST_HTTPD being
set, therefore we could simply remove this environment variable.
However, if a bug were to creep in to change the Travis CI build
environment to run the tests as root or to not install Apache, then
the httpd tests would be skipped and the build job would still
succeed.  We would only notice if someone actually were to look
through the build job's trace log; but who would look at the trace log
of a successful build job?!

Since httpd tests are important, we do want to run them and we want to
be loudly reminded if they can't be run.  Therefore, move setting
GIT_TEST_HTTPD=YesPlease for the 64-bit GCC and Clang Linux build jobs
to 'ci/lib-travisci.sh' to ensure that the build job fails when the
httpd tests can't be run.  (We could set it in 'ci/run-tests.sh' just
as well, but it's better to keep all environment variables in one
place in 'ci/lib-travisci.sh'.)

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2017-12-12 00:34:46 +01:00 committed by Junio C Hamano
parent e3371e9260
commit a1157b76eb
2 changed files with 2 additions and 2 deletions
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2
ci/install-dependencies.sh
View File

@ -10,8 +10,6 @@ LFSWHENCE=https://github.com/github/git-lfs/releases/download/v$LINUX_GIT_LFS_VE
case "$jobname" in
linux-clang|linux-gcc)
export GIT_TEST_HTTPD=YesPlease
mkdir --parents "$P4_PATH"
pushd "$P4_PATH"
wget --quiet "$P4WHENCE/bin.linux26x86_64/p4d"

2
ci/lib-travisci.sh
View File

@ -40,6 +40,8 @@ export GIT_TEST_CLONE_2GB=YesPlease
case "$jobname" in
linux-clang|linux-gcc)
export GIT_TEST_HTTPD=YesPlease
# The Linux build installs the defined dependency versions below.
# The OS X build installs the latest available versions. Keep that
# in mind when you encounter a broken OS X build!