In debug builds, we assert and abort to give more useful crashes for
development (i.e., instead of triggering UB). Otherwise, we get the
optimization benefits of `unreachable()` (or the older
platform-specific fallbacks per `cm/utility`).
Move some target related enumeration types from `cmStateTypes.h` to a
new header, as these really aren't "state" types. Also, make
`TargetType` a strongly-typed enumeration.
The original addition of CMD_INSTALL_ABSOLUTE_DIR by commit
39a56136a3 (Diagnostic: Add warn or error on absolute install paths,
2026-03-25) didn't cover all install signatures. Add checks to cover
those install types that weren't covered by the original commit.
Modify `cmInstallGenerator` to have a `cmDiagnosticContext` instead of
just a `cmListFileBacktrace`. Create helpers to obtain a state capture
that includes `CMD_INSTALL_ABSOLUTE_DESTINATION`. Modify most subclasses
(namely, ones that have a `DESTINATION`) to use this new state capture.
This fixes a limitation identified when 39a56136a3 (Diagnostic: Add warn
or error on absolute install paths, 2026-03-25) added the aforementioned
diagnostic, that the install generator(s) no longer have access to the
diagnostic state as of the `install` invocation which ultimately caused
the diagnostic if that scope is not the top-most scope of the current
subdirectory.
Note that some of the generators which capture context have not actually
implemented the diagnostic yet.
Fix most snake_case identifiers in cmInstall* to use camelCase instead.
Also, update clang-tidy configuration to help with applying these
changes, though the relevant check remains off by default.
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
Teach `export()` and `install(EXPORT)` to record this setting on the
imported targets they generate. Make this property's non-presence
authoritative on imported targets since they represent what was built
elsewhere.