file: Add COPY/INSTALL option for fixed layout relative to a directory

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.

9 files changed, 38 insertions, 0 deletions

diff --git a/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-result.txt b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-stderr.txt b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-stderr.txt
new file mode 100644
index 0000000..9d5f876
--- /dev/null
+++ b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad-stderr.txt
@@ -0,0 +1,15 @@
+^CMake Error at INSTALL-FILES_FROM_DIR-bad.cmake:[0-9]+ \(file\):
+  file option FILES_FROM_DIR requires all files to be specified as relative
+  paths\.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
++
+CMake Error at INSTALL-FILES_FROM_DIR-bad.cmake:[0-9]+ \(file\):
+  file INSTALL option RENAME may not be combined with FILES_FROM_DIR\.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
++
+CMake Error at INSTALL-FILES_FROM_DIR-bad.cmake:[0-9]+ \(file\):
+  file option FILES_FROM_DIR may not appear after PATTERN or REGEX\.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)$
diff --git a/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad.cmake b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad.cmake
new file mode 100644
index 0000000..807b704
--- /dev/null
+++ b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-bad.cmake
@@ -0,0 +1,5 @@
+set(src ${CMAKE_CURRENT_SOURCE_DIR}/from)
+set(dst ${CMAKE_CURRENT_BINARY_DIR}/from)
+file(INSTALL FILES ${src}/a.txt FILES_FROM_DIR ${src} DESTINATION ${dst})
+file(INSTALL FILES a.txt FILES_FROM_DIR ${src} DESTINATION ${dst} RENAME b.txt)
+file(INSTALL FILES a.txt DESTINATION ${dst} PATTERN *.txt FILES_FROM_DIR)
diff --git a/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-stdout.txt b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-stdout.txt
new file mode 100644
index 0000000..1c3c693
--- /dev/null
+++ b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-stdout.txt
@@ -0,0 +1,8 @@
+-- Before Installing
+-- Installing: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a.txt
+-- Installing: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a/b.txt
+-- Installing: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a/b/c.txt
+-- Up-to-date: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a.txt
+-- Up-to-date: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a/b.txt
+-- Up-to-date: .*/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR-build/from/a/b/c.txt
+-- After Installing
diff --git a/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR.cmake b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR.cmake
new file mode 100644
index 0000000..24e5282
--- /dev/null
+++ b/Tests/RunCMake/file/INSTALL-FILES_FROM_DIR.cmake
@@ -0,0 +1,7 @@
+set(src ${CMAKE_CURRENT_SOURCE_DIR}/from)
+set(dst ${CMAKE_CURRENT_BINARY_DIR}/from)
+file(REMOVE RECURSE ${dst})
+message(STATUS "Before Installing")
+file(INSTALL FILES a.txt a/b.txt a/b/c.txt FILES_FROM_DIR ${src} DESTINATION ${dst})
+file(INSTALL FILES a.txt a/b.txt a/b/c.txt FILES_FROM_DIR from DESTINATION ${dst})
+message(STATUS "After Installing")
diff --git a/Tests/RunCMake/file/RunCMakeTest.cmake b/Tests/RunCMake/file/RunCMakeTest.cmake
index 63cbdd9..26051b4 100644
--- a/Tests/RunCMake/file/RunCMakeTest.cmake
+++ b/Tests/RunCMake/file/RunCMakeTest.cmake
@@ -8,6 +8,8 @@ run_cmake(UPLOAD-unused-argument)
 run_cmake(UPLOAD-httpheader-not-set)
 run_cmake(UPLOAD-pass-not-set)
 run_cmake(INSTALL-DIRECTORY)
+run_cmake(INSTALL-FILES_FROM_DIR)
+run_cmake(INSTALL-FILES_FROM_DIR-bad)
 run_cmake(INSTALL-MESSAGE-bad)
 run_cmake(FileOpenFailRead)
 run_cmake(LOCK)
diff --git a/Tests/RunCMake/file/from/a.txt b/Tests/RunCMake/file/from/a.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/RunCMake/file/from/a.txt
diff --git a/Tests/RunCMake/file/from/a/b.txt b/Tests/RunCMake/file/from/a/b.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/RunCMake/file/from/a/b.txt
diff --git a/Tests/RunCMake/file/from/a/b/c.txt b/Tests/RunCMake/file/from/a/b/c.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/RunCMake/file/from/a/b/c.txt