Within an existing build tree, if the stamp for a step already exists
when one activates the ALWAYS option, we still want it to always build.
Remove the step stamp file during CMake configuration to ensure it does
not exist when the ALWAYS option is enabled.
If this option is enabled, the test step is created with the
EXCLUDE_FROM_MAIN option, and if TEST_BEFORE_INSTALL is enabled, the
install step does not depend on the test step.
This means that the test step is never executed, unless the test target
is explicitly created by calling ExternalProject_Add_StepTarget, or by
passing it with the STEP_TARGETS option, or with the EP_STEP_TARGETS
directory property.
The external project's build process may generate byproducts on which
other rules in the driving project's build later depend. Provide a way
for the driving project to specify what byproducts it expects to be made
available by the custom commands that drive the external project.
3c497f11 Help: Add notes for topic 'ExternalProject_UPDATE_DISCONNECTED'
aba5cec6 ExternalProject: Add unit tests for UPDATE_DISCONNECTED
3f606fa7 ExternalProject: Add UPDATE_DISCONNECTED option
c0b749cf ExternalProject: Always add a command to a step
The change in commit v3.1.0-rc1~85^2 (ExternalProject: Fix download
retry logic, 2014-09-13) dropped the file(DOWNLOAD) EXPECTED_HASH
argument. This prevents file(DOWNLOAD) from skipping the download if
the output file already exists with the proper hash. Restore this check
with explicit code in the download script.
Reported-by: Ruslan Baratov <ruslan_baratov@yahoo.com>
If UPDATE_DISCONNECTED is set, the update step is not executed
automatically when building the main target. The update step can still
be added as a step target and called manually. This is useful if you
want to allow to build the project when you are disconnected from the
network (you might still need the network for the download step).
This is disabled by default.
The directory property EP_UPDATE_DISCONNECTED can be used to change
the default value for all the external projects in the current
directory and its subdirectories.
Some generators (i.e. Xcode) will not generate a file level target if
no command is set, and therefore the dependencies on this target will
be broken.
This patch sets an empty echo command that does nothing to avoid this
issue.
The ExternalProject_Add_StepDependencies function add some dependencies
for some external project step.
The syntax is:
ExternalProject_Add_Step_Dependencies(<name> <step> [target1 [target2 [...]]])
This function takes care to set both target and file level dependencies,
and will ensure that parallel builds will not break.
It should be used instead of add_dependencies() when adding a dependency
for some of the step targets generated by ExternalProject. See also:
http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/8680/focus=8926
When adding step targets using ExternalProject_Add_StepTargets, the
STEP_TARGETS argument or the EP_STEP_TARGETS property, ExternalProject
sets all the dependencies for the main project to that target. Due to
this, the update target cannot be used without downloading and building
all the dependencies.
In order to be able to add step targets that do not depend on other
external projects, this patch adds:
* An optional "NO_DEPENDS" argument to the
ExternalProject_Add_StepTargets function. If this argument is set,
then no dependencies are set for the target (file dependencies will
still be set).
* A new argument INDEPENDENT_STEP_TARGETS to the ExternalProject_Add
function and a new directory property EP_INDEPENDENT_STEP_TARGETS that
behave like STEP_TARGETS and EP_STEP_TARGETS, but cause the
ExternalProject_Add_StepTargets to be called with the NO_DEPENDS
argument.
This argument allows to set default arguments that are written in the
initial cache file, but that are not forced, and therefore allows the
user to change these values later (CMAKE_ARGS and CMAKE_CACHE_ARGS
always overwrite the values).
Also add some documentation to explain the differences between these 3
arguments.
Extend ExternalProjectLocal test to cover CMAKE_CACHE_DEFAULT_ARGS.
Convert ExternalProject module documentation to use explicit markup
blocks for each command. Enumerate command options with definition
lists instead of a literal block. This will allow more detail to be
added later. Also fix the logic that parses options out of the
documentation to be aware of the new layout.
Use a bracket comment to hold the documentation instead of a block of
line comments. This will make further updates easier. Also fix the
logic that parses options out of the documentation to be aware of the
new layout.
Fix the CMP0054 warning:
CMake Warning (dev) at .../Modules/ExternalProject.cmake:242 (if):
Policy CMP0054 is not set: Only interpret if() arguments as variables or
keywords when unquoted. Run "cmake --help-policy CMP0054" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
Quoted keywords like "COMMAND" will no longer be interpreted as keywords
when the policy is set to NEW. Since the policy is not set the OLD
behavior will be used.
Call Stack (most recent call first):
.../Modules/ExternalProject.cmake:1938 (_ep_parse_arguments)
CMakeLists.txt:5 (ExternalProject_Add)
by avoiding a reference to "${key}" or "COMMAND" in quotes.
be6a555d Tests: Test setting a generator platform in a toolchain file
d506fee8 Tests: Use -A option to pass generator platform selection
11c9ddd6 ExternalProject: Use -A option to pass generator platform
29bd843e CTest: Use -A option to pass generator platform selection
eb7d8156 cmake: Add -A option to specify a generator platform
Do not check file's hash in download script. If hash will not match
command ``file(DOWNLOAD ...)`` will fail with FATAL_ERROR, ``cmake -P``
will exit with unsuccessful code, and the build will stop. Leave hash
checking to the existing implementation in the verify step.
When the loop was added by commit v3.0.0-rc1~103^2~3 (ExternalProject:
Reattempt download when verification fails, 2015-01-15), we forgot to
actually increment the loop counter. Add the increment line.
When the CMAKE_GENERATOR option is given to ExternalProject_Add, look
also for option CMAKE_GENERATOR_PLATFORM to pass on to cmake as a cache
definition. When no CMAKE_GENERATOR option is given explicitly then use
the current project's CMAKE_GENERATOR_PLATFORM (since we already use its
CMAKE_GENERATOR).
Also fix .bz2 extension to be .tar.bz2 since we only support compressed
tarballs and not plain compressed files.
Suggested-by: Nils Gladitz <nilsgladitz@gmail.com>
Suggested-by: Rolf Eike Beer <eike@sf-mail.de>
In commit v3.0.0-rc1~103^2~3 (ExternalProject: Reattempt download when
verification fails, 2014-01-15) a reference to ${CMAKE_COMMAND} was
added to generate a reference to the CMake command in a cmake script.
Escape the '$' so that the literal variable reference appears in the
script instead of writing the path to the current cmake. This is
necessary when the path to CMake contains spaces or other characters
special to CMake syntax.
The matches have already been calculated and can simply be taken from
CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very
similar regular expressions.
When adding a new external project, the "all" target will depend on
this.
This option allows one to add an external project will not be executed
when the "all" target is executed.
The reason for this is that an external project could be useful, for
example, only for running tests, and therefore not necessary during
the build.
When adding a new step using ExternalProject_Add_Step, the main target
will depend on this step.
This option allows one to add a step that will not be executed when the
main target for the external project is executed.
ExternalProject handles git remote branches by commit hash. Due to
this, the git repository ends in detached states, and local commits
are discarded.
Use "git rebase" for remote branches instead of "git checkout". If
there are uncommitted changes, use "git stash save/pop" to save changes
and restore them after the rebase. If any of these operations fails,
try to restore the original status and exit with a fatal error, asking
the user to resolve the conflicts manually.
This also makes the behaviour of ExternalProject using git more similar
to the svn version, and probably more likely to what the user expects
by setting GIT_TAG to a branch.
Teach ExternalProject_Add a new BUILD_ALWAYS option to skip using
the build step stamp file and execute the step on every build.
Extend the BuildDepends test with a case to cover this option.
When downloading an URL with ExternalProject, reattempt the download three
times if the file hash verification fails.
The re-attempt is limited to non-local URL's. The same download CMake script
is re-used after removing any file that resulted from the previous download
attempt. Up to three re-attempts are performed.
Manually revise the .rst format of the documentation. Use inline
literal quotes appropriately in paragraph text. Move the :: literal
block openers to the end of the preceding paragraphs. Convert the
command signature documentation and examples to cmake code-block
directives.
The VS IDE sets the environment variable VS_UNICODE_OUTPUT when
executing build rules in order to tell MS tools to report output through
a back door instead of through stdout/stderr. Unset this variable so
that CMake can capture or properly redirect all output from processes it
runs even when running inside a VS IDE build environment.
This generalizes the special cases fixed by commit 80d045b0 (When
GetPrerequisites.cmake runs dumpbin while running inside the VS IDE...,
2008-05-01) and commit 44aff73d (ExternalProject: Avoid bleed-through
output when logging, 2011-01-06), so drop special handling of
VS_UNICODE_OUTPUT in those instances.
We support multiple commands per external project step by using
the COMMAND keyword. Document this behavior and show an example.
While at it, document that shell operators and current working
directory behavior is not defined.
With
SVN_USERNAME ""
SVN_PASSWORD ""
in an ExternalProject_Add() call, the blank username and password
will be passed to the svn checkout/update step commands.
When the CMAKE_GENERATOR option is given to ExternalProject_Add, look
also for option CMAKE_GENERATOR_TOOLSET to select the value of the cmake
"-T" command-line flag. When no CMAKE_GENERATOR option is given
explicitly then use the current project's CMAKE_GENERATOR_TOOLSET (since
we already use its CMAKE_GENERATOR).
The ExternalProject_Add DEPENDS option adds two types of dependencies.
It adds a target-level build order dependency between the external
project target and the named targets. It also adds a file-level
dependency on the "done" stamp file of the named external project
targets. Targets not created by ExternalProject_Add have no such stamp
file and no _EP_STAMP_DIR property. Prior to commit d14c0243 (Refactor
repeated code into function, 2012-04-26) we unconditionally accepted an
empty stamp dir and generated a dependency on a non-existent file.
After that commit we generate an error that no stamp dir is set.
Skip the file-level dependency when the named dependency is not an
external project target in order to allow this use case. Teach the
ExternalProject test to cover the case.
In the current default update step for Git under the ExternalProject_Add
command, a 'git fetch' is always performed, followed by a 'git checkout' and
'git submodule update --recursive'. However, a 'git fetch' can be time
consuming and requires a network connection.
To save time, we look at the current checked out hash, and only perform the
fetch if required. This is performed in a CMake script so we can handle
the conditional logic in a cross platform manner.
Make the EXPECTED_HASH option take only a single value instead of two to
avoid handling sub-keyword arguments. This is also consistent with
URL_HASH in ExternalProject.
Some download URLs do not have the filename embedded in the url.
Add an interface to specify the local filename explicitly.
Suggested-by: James Goppert <james.goppert@gmail.com>
TLS has superseded SSL so rename the recently added file(DOWNLOAD) and
ExternalProject options using the newer terminology. Drop "CURLOPT"
from names because curl is an implementation detail.
This commit adds the ability to turn on and off ssl certificate
authority checking. It also adds the ability to specify a
certificate authority information file. This can be done
by setting global cmake variables CMAKE_CURLOPT_CAINFO_FILE
and or CMAKE_CURLOPT_SSL_VERIFYPEER in the project calling
ExternalProject_Add, or by passing those options to individual
ExternalProject_Add calls.
Add options HG_REPOSITORY and HG_TAG to specify an external project
hosted in a Mercurial repository. Teach ExternalProject to clone the
repository and update from it. Extend the ExternalProject test to try a
Mercurial repository when hg is available.
Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block. This is no longer the preferred style.
Run the following shell code:
for c in else endif endforeach endfunction endmacro endwhile; do
echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
egrep -z -v 'Tests/CMakeTests/While-Endwhile-' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed
Fix the build command when Ninja is the CMake Generator, but the
external project is created for a project that does not use CMake but
does use "make".
By tracking a stamp file within the git clone script itself.
Avoids a 2nd git clone operation after switching from Debug
to Release builds in Visual Studio, or vice-versa.
Add "private/internal-use-only" function _ep_get_step_stampfile
to get the name of the stamp file for a given step.
The functionality provided by this commit should be identical
to its parent commit.
In the case of git, only track the repository in the
repository info dependency tracking file. Not the tag.
The download step should only re-run if the repository changes.
The download step should NOT re-run if the tag changes.
The update step is an 'always' re-running step, and so should
already re-run, unless it's been eliminated by use of
UPDATE_COMMAND ""
Commit f67139ae added running a verify script in between running
the download and extract scripts. Since then, it has always been
missing the COMMAND keyword added in this commit.
It worked anyway (semi-accidentally) by running a command line like:
cmake -P script1.cmake cmake -P script2.cmake
CMake, when running -P scripts on the command line, runs them in order,
and apparently ignores spurious arguments in between (the middle "cmake"
in the above example) and so, all appeared to work as intended.
This commit adds the missing keyword and the commands that run are
now two separate sequential cmake invocations like:
cmake -P script1.cmake
cmake -P script2.cmake
...which was the original intent of commit f67139ae
When GIT_EXECUTABLE points at ".../Git/cmd/git.cmd" in an msysGit
installation we previously failed to detect the version number in a
subtle case. The "git.cmd" assumes 'chcp' is in PATH. It is typically
available at "C:\Windows\System32\chcp.com". On 64-bit Windows the File
System Redirector maps this location to "C:\Windows\SysWOW64\chcp.com"
for 32-bit processes. However, some Windows installations fail to
provide chcp.com at this path. Whenever git.cmd runs in a 32-bit
command shell, as it does under a 32-bit CMake binary, it reports
'chcp' is not recognized as an internal or external command,
operable program or batch file.
on stderr. Capture stderr separately so it does not affect parsing
of the version number.
See also msysGit issue 358:
http://code.google.com/p/msysgit/issues/detail?id=358
Note that FindGit prefers "git.cmd" over "git.exe" because it sets up
the proper HOME environment variable necessary for Git ssh connections
to work the same as they do from the Git bash prompt.
The previous commit added --non-interactive as a "side effect"
of turning on SVN_TRUST_CERT. While reviewing that commit, we
decided all ExternalProject svn usage should be non-interactive.
That way, if there's any sort of problem, svn will return an
error right away rather than hang forever waiting for input...
Which adds --non-interactive and --trust-server-cert to the svn
checkout and update command lines. This allows ExternalProject
clients to pull from an https:// based svn server even though
the server may not have a valid or trusted certificate.
Caveat emptor: I would NOT recommend using this except as a
short-term work-around. Rather, the server should have a valid,
trusted certificate, or the client should be using "http" instead
of "https".
Unset VS_UNICODE_OUTPUT when executing a command whose output
is being logged to a file. Previously, running Microsoft tools
in sub-processes of Visual Studio would send their output to
the Visual Studio output pipe named by this environment variable.
Unsetting it forces the output back to the normal stdout and stderr
channels where cmake can intercept it and direct it to the
appropriate log files.
Escaped the @var@ in the file writes - this was being expanded at file
write and so not causing a reconfigure at the right time. I also took
care of build up lists of lists in the variables, especially important
for things like MPI_EXTRA_LIBRARY. Added some error checking, and use
the tmp_dir for initial cache file.
On Windows the limit for command line arguments is 8192 characters, and
this was limiting longer paths with some of our more nested projects
such as Library. Placing the -D arguments into CMAKE_CACHE_ARGS will
write out an initial cache file, that will be passed to CMake with a -C
argument as the initial cache.
By forcing the cache variables we preserve the existing behavior with
-D, to change the values of cache variables in our inner projects.
Fixed parallel build for projects using generators that have the
CMAKE_EXTRA_GENERATOR as well as CMAKE_GENERATOR. Thanks to Bill Hoffman
for helping me to track this one down, I missed parallel builds.
This commit introduces the ability to add custom targets
that correspond to individual ExternalProject steps.
The main motivation behind this new feature is to drive
sub-project based dashboard steps as external projects
with separate targets for update, configure, build and
test output. This makes it easy to construct a ctest -S
script to drive such a dashboard.
With no STEP_TARGETS defined, there are no additional
custom targets introduced, to minimize the chatter in
the target name space. Clients may define STEP_TARGETS
on a per-ExternalProject_Add basis, or at the directory
level by setting the EP_STEP_TARGETS directory property.
The intent was to warn about misspelled keyword arguments,
but the effect was to warn about valid argument values far
too often. Let's stop annoying and confusing people.
ExternalProject_Add calls that did not explicitly request a
CMAKE_GENERATOR would not get recursive parallel make behavior.
This commit fixes that issue.
Fix niggly in ExternalProject that would inadvertently
create a log file of output when a command was explicitly
set to the empty string.
Also, increase the default value for showing context
around build errors to 10 lines, up from 6. Also add
the ability to customize this setting so that users
can put it back to 6 or even lower if they want, or
show more if they want.
Avoid issues with two external projects trying to extract two
separate trees at the same time into the same location. Should
fix the sporadically failing ExternalProject test on the dashboards
for parallel builds.
Optionally hide the output of each external project build step by
wrapping its command in a launcher script. Make output available in log
files instead. This simplifies the output of external project builds.
See http://public.kitware.com/Bug/view.php?id=10346.
The proposed patch for the issue could not be applied as is
because the SOURCE_DIR always exists for an ExternalProject_Add
call by the time we get to the place to emit the potential error.
The fix is to emit the error only if the source dir is empty.
By which, I mean devoid of files and subdirectories. If
SOURCE_DIR is used by itself, without any DOWNLOAD_COMMAND
or repository info, then it implies that the SOURCE_DIR is ready
to build as-is without need for a download step. Clearly, if it
is empty, then it is not ready to build as is. So complain if
the SOURCE_DIR is empty.
Brad King
Ben Boeckel
Daniele E. Domenichelli
Matt McCormick
Ruslan Baratov
Alan W. Irwin
Rolf Eike Beer
Gereon Kremer
Kitware Robot
Bill Hoffman
David Cole
Peter Collingbourne
Marcus D. Hanwell
Todd Gamblin