In certain cases, rebuilds with CMake using the CONFIGURE_DEPENDS flag
with GLOB_RECURSE could result in a reconfigure loop due to CMP0009 not
being propogated to the generated VerifyGlobs.cmake script.
During the inital configuration phase, RecurseThroughSymlinksOn() is
called for recursive glob operations either by having the CMP0009 status
not set to NEW or by explicitly providing the FOLLOW_SYMLINKS flag. At
the end when the VerifyGlobs script is created, the FOLLOW_SYMLINKS flag
is written according to the final resolved form through a call to
GetRecurseThroughSymlinks(). Thus, setting CMP0009 to NEW in the
generated file is safe and allows correct behavior whether or not the
end user sets the policy status to NEW or OLD.
Previously code like
file(REMOVE_RECURSE "${accidentally_missing_variable}")
treated the empty string as a relative path with respect to the
current directory and removed its contents. Change this behavior
to ignore the empty string with a warning instead.
Normally such behavior changes are done with a policy, but in this case
such code is likely a real bug in project code that can delete data.
Fixes: #19274
Refactoring in commit v3.12.0-rc1~418^2~3 (Refactor HandleGlobCommand,
2018-02-13) introduced error diagnostics for argument combinations that
were previously accepted. Restore acceptance to avoid regressing
projects that used those combinations even if they do not make sense.
Fixes: #18097
Add a `FILES_FROM_DIR` option to install a specific set of files
specified relative to a given directory and preserve their layout
in the destination. Currently we intend to use this internally
to implement other things so we don't provide an `install()`
porcelain or documentation yet.
Since commit v3.3.0-rc1~318^2~1 (file: Teach GLOB to list directories
optionally, 2015-03-17) using `LIST_DIRECTORIES` followed by no
expression causes a crash. Fix the logic to avoid the crash.
Fixes: #16565
Although we fail with an error on a hash mismatch, it is not a fatal
error so the script may continue processing. If the download itself had
no error then report in the STATUS variable that the operation was not
successful due to the hash mismatch.
Suggested-by: Tobias Hieta <tobias@hieta.se>
GLOB lists directories by default and GLOB_RECURSE does not.
LIST_DIRECTORIES enables user to control the behavior explicitly for
consistently for both GLOB and GLOB_RECURSE.
Provide options to fail without blocking or to block up to a timeout.
Provide options to specify the scope containing the lock so it can be
released automatically at the end of a function, file, or process.
Extend the RunCMake.file test with cases covering the file(LOCK) command
usage and error cases.
Create options "MESSAGE_ALWAYS", "MESSAGE_LAZY", and "MESSAGE_NEVER" to
specify whether to print the "Installing" and "Up-to-date" messages.
Extend the RunCMake.file test with cases covering these options.
Teach cmFileCopier::InstallDirectory to detect whether the destination
directory exists. If so, report it as "Up-to-date" instead of
"Installing". This resolves message asymmetry with file installations.
Extend the RunCMake.file and RunCMake.install tests to check the
installation output on both the first and second run.
Suggested-by: J Decker <d3ck0r@gmail.com>
