Add the ability to generate CPS package information when install(EXPORT)
is used. This relies on additional information to be passed to CMake,
and is intended as a way of getting CPS out of existing projects without
needing to make changes to the projects' CMakeLists.txt. (Particularly,
this feature is intended for package distributors, not project authors.)
Add an explicit check in `install(EXPORT)` that the export name is
non-empty. Since an empty-named export set will never exist, this is
always an error. Previously, however, the error would not be caught
until generate time. Now an error will be produced immediately.
Revert commit b70ef48b27 (install(DIRECTORY): Add
EXCLUDE_EMPTY_DIRECTORIES option, 2025-04-20, v4.1.0-rc1~212^2).
The implementation had at least two problems:
* It did not exclude the top-level directory if empty.
* It did not exclude non-empty directories whose contents are
all filtered out.
Revert the feature pending a revised implementation.
Issue: #19189Closes: #27092
When installing FILE_SETs, it is possible the FILE_SET has not yet been
created with target_sources(FILE_SET). Instead of ignoring this
situation, we need to track the installed FILE_SET names and their
possible install destinations.
At generation time we resolve the names and destinations concretely. If
a FILE_SET wasn't provided or isn't an INTERFACE, we silently bail out.
Fixes: #26697
Modify {export,install}(PACKAGE_INFO) commands to inherit version
information from the current project in situations where it seems
reasonable to do so. Add an option to explicitly request inheritance
from a specific project.
This leverages the recently added project(COMPAT_VERSION).
CPS package metadata involves a fair amount of passing around a
particular set of values, as well as shared argument handling, which is
only going to increase as additional features are added. In order to
reduce code duplication (now and going forward), create a helper class
to handle the shared argument parsing and to serve as a container to
pass metadata values.
EXCLUDE_EMPTY_DIRECTORIES option excludes empty directories under the
directory to install. A directory is considered not empty if and only if
the directory contains at least one file or one symbolic link or one
none-empty sub-directory.
Closes: #19189
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`, now with "east const" enforcement.
Use `clang-format` version 18.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
Issue: #26123
77f71ad4e2 Remove compatibility with CMake versions older than 3.5
fb1bd1d330 CMP0065: Remove support for OLD behavior
d9dd38cccf CMP0064: Remove support for OLD behavior
d88047c329 Remove compatibility with CMake versions older than 3.3
ac1a9cb160 CMP0063: Remove support for OLD behavior
36fffb673a CMP0062: Remove support for OLD behavior
789a7d73d4 CMP0061: Remove support for OLD behavior
3dc19e24cb CMP0060: Remove support for OLD behavior
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10210
The file generated by install(EXPORT) computes _IMPORT_PREFIX
in a way that assumes a normalized path. If the DESTINATION
contains any ../ components, the computed _IMPORT_PREFIX
would be wrong. Force the DESTINATION path to be normalized,
subject to the new CMP0176 policy.
Also normalize all other DESTINATION paths for consistency,
except for INCLUDES DESTINATION, which is not strictly a
destination but rather a search path to add.
Fixes: #26252
Add initial support for exporting (install only, for now) Common Package
Specification (https://cps-org.github.io/cps/) format package
descriptions. This has some limitations, such as not supporting
generator expressions (as these cannot be portably exported), and only
partially supporting transitive dependencies, but should be usable for
at least some simple cases. (Actually, $<LINK_ONLY> is theoretically
supportable, but is not yet implemented.)
This still needs tests; these will be added in the next commit. Other
potential improvements include support for language-specific compile
definitions and inferring some package properties from project
properties. Additionally, there is no module support yet; this is partly
pending on having a tool agnostic format for providing the necessary
information.
In order to support generation of Common Package Specifications, the
mechanisms CMake uses to export package information need to be made more
abstract. The prior commits began this refactoring; this continues by
(actually) restructuring the classes used to generate the actual export files.
To minimize churn, this introduces virtual base classes and
diamond inheritance in order to separate logic which is format-agnostic
but depends on the export mode (build-tree versus install-tree) from
logic which is format-specific but mode-agnostic.
This could probably be refactored further to use helper classes instead,
and a future commit may do that, however an initial attempt to do that
was proving even more invasive, such that this approach was deemed more
manageable.
While we're at it, add 'const' in more places where possible.
In order to support generation of Common Package Specifications, the
mechanisms CMake uses to export package information need to be made more
abstract. As a first step toward this, refactor cmInstallExportGenerator
so that logic specific to config.cmake and Android .mk lives in separate
subclasses.
While we're at it, clean up the code style a bit and try to use moves a
bit more consistently.
This is step 1 of 2. The next step will refactor the individual file
generators along similar lines, which will also involve creating
additional classes for format-agnostic logic that is shared between
build-tree and install-tree variants.
Previously bindings to `std::vector<std::string>` required at least one
value. Some clients have been filtering `keywordsMissingValue` to
support keywords followed by empty lists. Instead, require clients to
specify whether a keyword's list can be empty as part of the binding
type.
This directory will be used to store build-discovered information about
targets such as the modules provided by the files in the relevant
`FILE_SET` types.
A directory is used because basing the name on a `<FILE_NAME>-*.cmake`
pattern makes it end up being globbed in the configuration-dependent
information mechanism. Since old modules and targets may be around,
unconditionally including them may refer to targets that do not actually
exist.
Allow `cmGlobalGenerator`s to decide `HasKnownObjectFileLocation()` per given
`cmTarget`
- `cmGlobalGenerator::HasKnownObjectFileLocation()` now takes an optional `cmGeneratorTarget`
- `cmTarget::HasKnownObjectFileLocation()` added as a shorthand
This presents value semantics for a stack of constant values.
Internally it shares ownership to avoid copies. Previously
this was implemented by `cmListFileBacktrace` explicitly,
but the approach can be re-used for other kinds of stacks.
In commit 55e4753bbb (Refactor cmTargetExport removing
InterfaceIncludeDirecories, 2021-07-20, v3.22.0-rc1~337^2~1) the storage
of `INCLUDES DESTINATION` was moved into each target. However, a target
may be installed in multiple exports, and their `INCLUDES DESTINATION`
should not be mixed.
Convert the IncludeDirectoriesEntries vector to a map and modify access
function to store the directories lists with respect to cmExportTarget
object. This fixes error when the same target is exported more than once
via different exports and each for consequent export its include
directories list grows. Add a test for this case.
Fixes: #23183
dbe33b20bd install: Add context to {PUBLIC,PRIVATE}_HEADER/RESOURCE DESTINATION warnings
1a25f057da cmComputeLinkInformation: Add context to warning about linking a directory
4862f3b2c8 cmcmd: Write progress and tar errors directly to stderr
efc6c23a47 bootstrap: Do not declare cmSystemTools functions that are not implemented
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !6680
