recipetool: create: basic extraction of name/version from filename

Often the filename (e.g. source tarball) contains the name and version
of the software it contains.

(This isn't intended to be exhaustive, just to catch the common case.)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/scripts/lib/recipetool/create.py b/scripts/lib/recipetool/create.py
index 6c7b9fd7e8..4887604219 100644
--- a/scripts/lib/recipetool/create.py
+++ b/scripts/lib/recipetool/create.py
@@ -86,6 +86,27 @@ def validate_pv(pv):
         return False
     return True
 
+def determine_from_filename(srcfile):
+    """Determine name and version from a filename"""
+    part = ''
+    if '.tar.' in srcfile:
+        namepart = srcfile.split('.tar.')[0]
+    else:
+        namepart = os.path.splitext(srcfile)[0]
+    splitval = namepart.rsplit('_', 1)
+    if len(splitval) == 1:
+        splitval = namepart.rsplit('-', 1)
+    pn = splitval[0].replace('_', '-')
+    if len(splitval) > 1:
+        if splitval[1][0] in '0123456789':
+            pv = splitval[1]
+        else:
+            pn = '-'.join(splitval).replace('_', '-')
+            pv = None
+    else:
+        pv = None
+    return (pn, pv)
+
 def supports_srcrev(uri):
     localdata = bb.data.createCopy(tinfoil.config_data)
     # This is a bit sad, but if you don't have this set there can be some
@@ -234,6 +255,17 @@ def create_recipe(args):
     else:
         realpv = None
 
+    if srcuri and not realpv or not pn:
+        parseres = urlparse.urlparse(srcuri)
+        if parseres.path:
+            srcfile = os.path.basename(parseres.path)
+            name_pn, name_pv = determine_from_filename(srcfile)
+            logger.debug('Determined from filename: name = "%s", version = "%s"' % (name_pn, name_pv))
+            if name_pn and not pn:
+                pn = name_pn
+            if name_pv and not realpv:
+                realpv = name_pv
+
     if not srcuri:
         lines_before.append('# No information for SRC_URI yet (only an external source tree was specified)')
     lines_before.append('SRC_URI = "%s"' % srcuri)