oe.package: add 'files' function

This function obtains a list of files to be included in a package, using the
globs in FILES_<pkg> and the files installed in ${D}.  Currently, the only
user is package_dbg, but I can see this being useful in package.bbclass as
well.

Signed-off-by: Chris Larson <chris_larson@mentor.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/oe/package.py b/lib/oe/package.py
new file mode 100644
index 0000000000..464368e78f
--- /dev/null
+++ b/lib/oe/package.py
@@ -0,0 +1,24 @@
+import glob
+import os.path
+import oe.path
+
+def files(pkg, d):
+    """ Obtains a list of files to be included in a package.
+
+    Starting from the FILES_<pkg> variable, it expands any glob.globs in the list,
+    which removes missing files, and traverses any directories in the list.
+
+    It does *not* remove files which are also in other packages, it's left
+    to the user's discretion whether to allow overlap. """
+
+    installdir = d.getVar("D", True)
+    installdirlen = len(installdir)
+
+    files = (d.getVar("FILES_%s" % pkg, True) or "").split()
+    for globbed in (glob.glob(os.path.join(installdir, file[1:])) for file in files):
+        for path in globbed:
+            if os.path.isdir(path) and not os.path.islink(path):
+                for file in oe.path.find(path):
+                    yield file[installdirlen:]
+            else:
+                yield path[installdirlen:]