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2018-01-03travis-ci: check that all build artifacts are .gitignore-dLibravatar SZEDER Gábor4-0/+20
Every once in a while our explicit .gitignore files get out of sync when our build process learns to create new artifacts, like test helper executables, but the .gitignore files are not updated accordingly. Use Travis CI to help catch such issues earlier: check that there are no untracked files at the end of any build jobs building Git (i.e. the 64 bit Clang and GCC Linux and OSX build jobs, plus the GETTEXT_POISON and 32 bit Linux build jobs) or its documentation, and fail the build job if there are any present. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-03travis-ci: don't store P4 and Git LFS in the working treeLibravatar SZEDER Gábor1-2/+2
The Clang and GCC 64 bit Linux build jobs download and store the P4 and Git LFS executables under the current directory, which is the working tree that we are about to build and test. This means that Git commands like 'status' or 'ls-files' would list these files as untracked. The next commit is about to make sure that there are no untracked files present after the build, and the downloaded executables in the working tree are interfering with those upcoming checks. Therefore, let's download P4 and Git LFS in the home directory, outside of the working tree. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-02travis-ci: record and skip successfully built treesLibravatar SZEDER Gábor6-0/+57
Travis CI dutifully builds and tests each new branch tip, even if its tree has previously been successfully built and tested. This happens often enough in contributors' workflows, when a work-in-progress branch is rebased changing e.g. only commit messages or the order or number of commits while leaving the resulting code intact, and is then pushed to a Travis CI-enabled GitHub fork. This is wasting Travis CI's resources and is sometimes scary-annoying when the new tip commit with a tree identical to the previous, successfully tested one is suddenly reported in red, because one of the OSX build jobs happened to exceed the time limit yet again. So extend our Travis CI build scripts to skip building commits whose trees have previously been successfully built and tested. Use the Travis CI cache feature to keep a record of the object names of trees that tested successfully, in a plain and simple flat text file, one line per tree object name. Append the current tree's object name at the end of every successful build job to this file, along with a bit of additional info about the build job (commit object name, Travis CI job number and id). Limit the size of this file to 1000 records, to prevent it from growing too large for git/git's forever living integration branches. Check, using a simple grep invocation, in each build job whether the current commit's tree is already in there, and skip the build if it is. Include a message in the skipped build job's trace log, containing the URL to the build job successfully testing that tree for the first time and instructions on how to force a re-build. Catch the case when a build job, which successfully built and tested a particular tree for the first time, is restarted and omit the URL of the previous build job's trace log, as in this case it's the same build job and the trace log has just been overwritten. Note: this won't kick in if two identical trees are on two different branches, because Travis CI caches are not shared between build jobs of different branches. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Reviewed-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-02travis-ci: create the cache directory early in the build processLibravatar SZEDER Gábor2-1/+2
It seems that Travis CI creates the cache directory for us anyway, even when a previous cache doesn't exist for the current build job. Alas, this behavior is not explicitly documented, therefore we don't rely on it and create the cache directory ourselves in those build jobs that read/write cached data (currently only the prove state). In the following commit we'll start to cache additional data in every build job, and will access the cache much earlier in the build process. Therefore move creating the cache directory to 'ci/lib-travisci.sh' to make sure that it exists at the very beginning of every build job. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Reviewed-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-02travis-ci: print the "tip of branch is exactly at tag" message in colorLibravatar SZEDER Gábor1-1/+1
To make this info message stand out from the regular build job trace output. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Reviewed-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-27travis-ci: only print test failures if there are test results availableLibravatar SZEDER Gábor1-0/+6
When a build job running the test suite fails, our 'ci/print-test-failures.sh' script scans all 't/test-results/*.exit' files to find failed tests and prints their verbose output. However, if a build job were to fail before it ever gets to run the test suite, then there will be no files to match the above pattern and the shell will take the pattern literally, resulting in errors like this in the trace log: cat: t/test-results/*.exit: No such file or directory ------------------------------------------------------------------------ t/test-results/*.out... ------------------------------------------------------------------------ cat: t/test-results/*.out: No such file or directory Check upfront and proceed only if there are any such files present. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Reviewed-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-27travis-ci: save prove state for the 32 bit Linux buildLibravatar SZEDER Gábor2-0/+2
This change follows suit of 6272ed319 (travis-ci: run previously failed tests first, then slowest to fastest, 2016-01-26), which did this for the Linux and OSX build jobs. Travis CI build jobs run the tests parallel, which is sligtly faster when tests are run in slowest to fastest order, shortening the overall runtime of this build job by about a minute / 10%. Note, that the 32 bit Linux build job runs the tests suite in a Docker container and we have to share the Travis CI cache directory with the container as a second volume. Otherwise we couldn't use a symlink pointing to the prove state file in the cache directory, because that's outside of the directory hierarchy accessible from within the container. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Reviewed-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-27travis-ci: fine tune the use of 'set -x' in 'ci/*' scriptsLibravatar SZEDER Gábor4-1/+13
The change in commit 4f2636667 (travis-ci: use 'set -x' in 'ci/*' scripts for extra tracing output, 2017-12-12) left a couple of rough edges: - 'ci/run-linux32-build.sh' is executed in a Docker container and therefore doesn't source 'ci/lib-travisci.sh', which would enable tracing executed commands. Enable 'set -x' in this script, too. - 'ci/print-test-failures.sh' iterates over all the files containing the exit codes of all the executed test scripts. Since there are over 800 such files, the loop produces way too much noise with tracing executed commands enabled, so disable 'set -x' for this script. - 'ci/run-windows-build.sh' busily waits in a loop for the result of the Windows build, producing too much noise with tracing executed commands enabled as well. Disable 'set -x' for the duration of that loop. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-12travis-ci: use 'set -x' in 'ci/*' scripts for extra tracing outputLibravatar SZEDER Gábor1-1/+1
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. A patch later in this series will move setting environment variables from '.travis.yml' to the 'ci/*' scripts, so not even those will be included in the trace log. Use 'set -x' in 'ci/lib-travisci.sh', which is sourced in most other 'ci/*' scripts, so we get trace log about the commands executed in all of those scripts. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-12travis-ci: set GIT_TEST_HTTPD in 'ci/lib-travisci.sh'Libravatar SZEDER Gábor2-2/+2
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>
2017-12-12travis-ci: move setting environment variables to 'ci/lib-travisci.sh'Libravatar SZEDER Gábor1-0/+21
Our '.travis.yml's 'env.global' section sets a bunch of environment variables for all build jobs, though none of them actually affects all build jobs. It's convenient for us, and in most cases it works just fine, because irrelevant environment variables are simply ignored. However, $GIT_SKIP_TESTS is an exception: it tells the test harness to skip the two test scripts that are prone to occasional failures on OSX, but as it's set for all build jobs those tests are not run in any of the build jobs that are capable to run them reliably, either. Therefore $GIT_SKIP_TESTS should only be set in the OSX build jobs, but those build jobs are included in the build matrix implicitly (i.e. by combining the matrix keys 'os' and 'compiler'), and there is no way to set an environment variable only for a subset of those implicit build jobs. (Unless we were to add new scriptlets to '.travis.yml', which is exactly the opposite direction that we took with commit 657343a60 (travis-ci: move Travis CI code into dedicated scripts, 2017-09-10)). So move setting $GIT_SKIP_TESTS to 'ci/lib-travisci.sh', where it can trivially be set only for the OSX build jobs. Furthermore, move setting all other environment variables from '.travis.yml' to 'ci/lib-travisci.sh', too, because a couple of environment variables are already set there, and this way all environment variables will be set in the same place. All the logic controlling our builds is already in the 'ci/*' scripts anyway, so there is really no good reason to keep the environment variables separately. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-12travis-ci: introduce a $jobname variable for 'ci/*' scriptsLibravatar SZEDER Gábor2-5/+10
A couple of 'ci/*' scripts are shared between different build jobs: 'ci/lib-travisci.sh', being a common library, is sourced from almost every script, while 'ci/install-dependencies.sh', 'ci/run-build.sh' and 'ci/run-tests.sh' are shared between the "regular" GCC and Clang Linux and OSX build jobs, and the latter two scripts are used in the GETTEXT_POISON Linux build job as well. Our builds could benefit from these shared scripts being able to easily tell which build job they are taking part in. Now, it's already quite easy to tell apart Linux vs OSX and GCC vs Clang build jobs, but it gets trickier with all the additional Linux-based build jobs included explicitly in the build matrix. Unfortunately, Travis CI doesn't provide much help in this regard. The closest we've got is the $TRAVIS_JOB_NUMBER variable, the value of which is two dot-separated integers, where the second integer indicates a particular build job. While it would be possible to use that second number to identify the build job in our shared scripts, it doesn't seem like a good idea to rely on that: - Though the build job numbering sequence seems to be stable so far, Travis CI's documentation doesn't explicitly states that it is indeed stable and will remain so in the future. And even if it were stable, - if we were to remove or insert a build job in the middle, then the job numbers of all subsequent build jobs would change accordingly. So roll our own means of simple build job identification and introduce the $jobname environment variable in our builds, setting it in the environments of the explicitly included jobs in '.travis.yml', while constructing one in 'ci/lib-travisci.sh' as the combination of the OS and compiler name for the GCC and Clang Linux and OSX build jobs. Use $jobname instead of $TRAVIS_OS_NAME in scripts taking different actions based on the OS and build job (when installing P4 and Git LFS dependencies and including them in $PATH). The following two patches will also rely on $jobname. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02travis-ci: fix running P4 and Git LFS tests in Linux build jobsLibravatar SZEDER Gábor2-6/+12
Linux build jobs on Travis CI skip the P4 and Git LFS tests since commit 657343a60 (travis-ci: move Travis CI code into dedicated scripts, 2017-09-10), claiming there are no P4 or Git LFS installed. The reason is that P4 and Git LFS binaries are not installed to a directory in the default $PATH, but their directories are prepended to $PATH. This worked just fine before said commit, because $PATH was set in a scriptlet embedded in our '.travis.yml', thus its new value was visible during the rest of the build job. However, after these embedded scriptlets were moved into dedicated scripts executed in separate shell processes, any variable set in one of those scripts is only visible in that single script but not in any of the others. In this case, 'ci/install-dependencies.sh' downloads P4 and Git LFS and modifies $PATH, but to no effect, because 'ci/run-tests.sh' only sees Travis CI's default $PATH. Move adjusting $PATH to 'ci/lib-travisci.sh', which is sourced in all other 'ci/' scripts, so all those scripts will see the updated $PATH value. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-22travis-ci: fix "skip_branch_tip_with_tag()" string comparisonLibravatar Lars Schneider1-1/+1
09f5e97 ("travis-ci: skip a branch build if equal tag is present", 2017-09-17) introduced the "skip_branch_tip_with_tag" function with a broken string comparison. Fix it! Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-11travis: dedent a few scripts that are indented overly deeplyLibravatar Junio C Hamano2-33/+36
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-11travis-ci: skip a branch build if equal tag is presentLibravatar Lars Schneider1-0/+23
If we push a branch and a tag pointing to the HEAD of this branch, then Travis CI would run the build twice. This wastes resources and slows the testing. Add a function to detect this situation and skip the build the branch if appropriate. Invoke this function on every build. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-11travis-ci: move Travis CI code into dedicated scriptsLibravatar Lars Schneider9-1/+120
Most of the Travis CI commands are in the '.travis.yml'. The yml format does not support functions and therefore code duplication is necessary to run commands across all builds. To fix this, add a library for common CI functions. Move all Travis CI code into dedicated scripts and make them call the library first. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23Merge branch 'ls/travis-relays-for-windows-ci'Libravatar Junio C Hamano1-3/+23
* ls/travis-relays-for-windows-ci: travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503 travis-ci: handle Git for Windows CI status "failed" explicitly
2017-05-16Merge branch 'ls/travis-doc-asciidoctor'Libravatar Junio C Hamano1-2/+13
Travis CI gained a task to format the documentation with both AsciiDoc and AsciiDoctor. * ls/travis-doc-asciidoctor: travis-ci: check AsciiDoc/AsciiDoctor stderr output travis-ci: unset compiler for jobs that do not need one travis-ci: parallelize documentation build travis-ci: build documentation with AsciiDoc and Asciidoctor
2017-05-04Merge branch 'rg/a-the-typo'Libravatar Junio C Hamano1-1/+1
Typofix. * rg/a-the-typo: fix minor typos
2017-05-04travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503Libravatar Lars Schneider1-2/+21
The Git for Windows CI web app sometimes returns HTTP errors of "502 bad gateway" or "503 service unavailable" [1]. We also need to check the HTTP content because the GfW web app seems to pass through (error) results from other Azure calls with HTTP code 200. Wait a little and retry the request if this happens. [1] https://docs.microsoft.com/en-in/azure/app-service-web/app-service-web-troubleshoot-http-502-http-503 Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-04travis-ci: handle Git for Windows CI status "failed" explicitlyLibravatar Lars Schneider1-1/+2
Git for Windows CI returns "completed: failed" if a build or test failure happened. This case was processed as "Unhandled status". Handle the case explicitly. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01fix minor typosLibravatar René Genz1-1/+1
Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: René Genz <liebundartig@freenet.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26travis-ci: printf $STATUS as stringLibravatar Lars Schneider1-1/+1
If the $STATUS variable contains a "%" character then printf will interpret that as invalid format string. Fix this by formatting $STATUS as string. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26travis-ci: check AsciiDoc/AsciiDoctor stderr outputLibravatar Lars Schneider1-3/+6
`make` does not necessarily fail with an error code if Asciidoc/AsciiDoctor encounters problems. Anything written to stderr might be a better indicator for problems. Ensure that nothing is written to stderr during a documentation build. The redirects do not work in `sh`, therefore the script uses `bash`. This shouldn't be a problem as the script is only executed on TravisCI. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16travis-ci: parallelize documentation buildLibravatar Lars Schneider1-2/+2
The documentation job without parallelization takes ~10min on TravisCI. With parallelization ("--jobs=2") it takes ~6min. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16travis-ci: build documentation with AsciiDoc and AsciidoctorLibravatar Lars Schneider1-1/+9
ec3366e introduced a knob to enable the use of Asciidoctor in addition to AsciiDoc. Build the documentation on TravisCI with this knob to reduce the likeliness of breaking Asciidoctor support in the future. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-28travis-ci: build and test Git on WindowsLibravatar Lars Schneider1-0/+74
Most Git developers work on Linux and they have no way to know if their changes would break the Git for Windows build. Let's fix that by adding a job to TravisCI that builds and tests Git on Windows. Unfortunately, TravisCI does not support Windows. Therefore, we did the following: * Johannes Schindelin set up a Visual Studio Team Services build sponsored by Microsoft and made it accessible via an Azure Function that speaks a super-simple API. We made TravisCI use this API to trigger a build, wait until its completion, and print the build and test results. * A Windows build and test run takes up to 3h and TravisCI has a timeout after 50min for Open Source projects. Since the TravisCI job does not use heavy CPU/memory/etc. resources, the friendly TravisCI folks extended the job timeout for git/git to 3h. Things, that would need to be done: * Someone with write access to https://travis-ci.org/git/git would need to add the secret token as "GFW_CI_TOKEN" variable in the TravisCI repository setting [1]. Afterwards the build should just work. Things, that might need to be done: * The Windows box can only process a single build at a time. A second Windows build would need to wait until the first finishes. This waiting time and the build time after the wait could exceed the 3h threshold. If this is a problem, then it is likely to happen every day as usually multiple branches are pushed at the same time (pu/next/ master/maint). I cannot test this as my TravisCI account has the 50min timeout. One solution could be to limit the number of concurrent TravisCI jobs [2]. [1] https://docs.travis-ci.com/user/environment-variables#Defining-Variables-in-Repository-Settings [2] https://docs.travis-ci.com/user/customizing-the-build#Limiting-Concurrent-Builds Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-06Travis: also test on 32-bit LinuxLibravatar Johannes Schindelin1-0/+30
When Git v2.9.1 was released, it had a bug that showed only on Windows and on 32-bit systems: our assumption that `unsigned long` can hold 64-bit values turned out to be wrong. This could have been caught earlier if we had a Continuous Testing set up that includes a build and test run on 32-bit Linux. Let's do this (and take care of the Windows build later). This patch asks Travis CI to install a Docker image with 32-bit libraries and then goes on to build and test Git using this 32-bit setup. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-10travis-ci: build documentationLibravatar Lars Schneider1-0/+14
Build documentation as separate Travis CI job to check for documentation errors. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>