1 files changed, 94 insertions, 0 deletions

diff --git a/meta/lib/oe/packagedata.py b/meta/lib/oe/packagedata.py
new file mode 100644
index 0000000000..cd5f0445f5
--- /dev/null
+++ b/meta/lib/oe/packagedata.py
@@ -0,0 +1,94 @@
+import codecs
+
+def packaged(pkg, d):
+    return os.access(get_subpkgedata_fn(pkg, d) + '.packaged', os.R_OK)
+
+def read_pkgdatafile(fn):
+    pkgdata = {}
+
+    def decode(str):
+        c = codecs.getdecoder("string_escape")
+        return c(str)[0]
+
+    if os.access(fn, os.R_OK):
+        import re
+        f = open(fn, 'r')
+        lines = f.readlines()
+        f.close()
+        r = re.compile("([^:]+):\s*(.*)")
+        for l in lines:
+            m = r.match(l)
+            if m:
+                pkgdata[m.group(1)] = decode(m.group(2))
+
+    return pkgdata
+
+def get_subpkgedata_fn(pkg, d):
+    return d.expand('${PKGDATA_DIR}/runtime/%s' % pkg)
+
+def has_subpkgdata(pkg, d):
+    return os.access(get_subpkgedata_fn(pkg, d), os.R_OK)
+
+def read_subpkgdata(pkg, d):
+    return read_pkgdatafile(get_subpkgedata_fn(pkg, d))
+
+def has_pkgdata(pn, d):
+    fn = d.expand('${PKGDATA_DIR}/%s' % pn)
+    return os.access(fn, os.R_OK)
+
+def read_pkgdata(pn, d):
+    fn = d.expand('${PKGDATA_DIR}/%s' % pn)
+    return read_pkgdatafile(fn)
+
+#
+# Collapse FOO_pkg variables into FOO
+#
+def read_subpkgdata_dict(pkg, d):
+    ret = {}
+    subd = read_pkgdatafile(get_subpkgedata_fn(pkg, d))
+    for var in subd:
+        newvar = var.replace("_" + pkg, "")
+        if newvar == var and var + "_" + pkg in subd:
+            continue
+        ret[newvar] = subd[var]
+    return ret
+
+def _pkgmap(d):
+    """Return a dictionary mapping package to recipe name."""
+
+    pkgdatadir = d.getVar("PKGDATA_DIR", True)
+
+    pkgmap = {}
+    try:
+        files = os.listdir(pkgdatadir)
+    except OSError:
+        bb.warn("No files in %s?" % pkgdatadir)
+        files = []
+
+    for pn in filter(lambda f: not os.path.isdir(os.path.join(pkgdatadir, f)), files):
+        try:
+            pkgdata = read_pkgdatafile(os.path.join(pkgdatadir, pn))
+        except OSError:
+            continue
+
+        packages = pkgdata.get("PACKAGES") or ""
+        for pkg in packages.split():
+            pkgmap[pkg] = pn
+
+    return pkgmap
+
+def pkgmap(d):
+    """Return a dictionary mapping package to recipe name.
+    Cache the mapping in the metadata"""
+
+    pkgmap_data = d.getVar("__pkgmap_data", False)
+    if pkgmap_data is None:
+        pkgmap_data = _pkgmap(d)
+        d.setVar("__pkgmap_data", pkgmap_data)
+
+    return pkgmap_data
+
+def recipename(pkg, d):
+    """Return the recipe name for the given binary package name."""
+
+    return pkgmap(d).get(pkg)