fetch2: Add SRPM knowledge

Enable the fetcher to be able to unpack and SRPM.  By default the system will
unpack the contents of the SRPM into the WORKDIR.

A new syntax "unpack=file" was developed for the SRC_URI, to allow for a
recipe to extract a specific file within an SRPM.  An unpack operation will
then be executed on the extracted file.

In order to apply extracted patches (or unpack files not specified with
unpack), you must specify the path using WORKDIR, i.e.:

file://${WORKDIR}/mypatch.patch

(From Poky rev: 906285ff00d6ffd3fd7713af52250e7c6503edb7)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 38 insertions, 24 deletions

diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
index ee3476bcc..9a4acc2ed 100644
--- a/lib/bb/fetch2/__init__.py
+++ b/lib/bb/fetch2/__init__.py
@@ -628,6 +628,7 @@ class FetchMethod(object):
 
     def unpack(self, urldata, rootdir, data):
         import subprocess
+        iterate = False
         file = urldata.localpath
         dots = file.split(".")
         if dots[-1] in ['gz', 'bz2', 'Z']:
@@ -635,6 +636,7 @@ class FetchMethod(object):
         else:
             efile = file
         cmd = None
+
         if file.endswith('.tar'):
             cmd = 'tar x --no-same-owner -f %s' % file
         elif file.endswith('.tgz') or file.endswith('.tar.gz') or file.endswith('.tar.Z'):
@@ -654,36 +656,43 @@ class FetchMethod(object):
             if 'dos' in urldata.parm:
                 cmd = '%s -a' % cmd
             cmd = "%s '%s'" % (cmd, file)
-        elif os.path.isdir(file):
-            filesdir = os.path.realpath(bb.data.getVar("FILESDIR", data, True))
-            destdir = "."
-            if file[0:len(filesdir)] == filesdir:
-                destdir = file[len(filesdir):file.rfind('/')]
-                destdir = destdir.strip('/')
-                if len(destdir) < 1:
-                    destdir = "."
-                elif not os.access("%s/%s" % (rootdir, destdir), os.F_OK):
-                    os.makedirs("%s/%s" % (rootdir, destdir))
-            cmd = 'cp -pPR %s %s/%s/' % (file, rootdir, destdir)
+        elif file.endswith('.src.rpm') or file.endswith('.srpm'):
+            if 'unpack' in urldata.parm:
+                unpack_file = ("%s" % urldata.parm['unpack'])
+                cmd = 'rpm2cpio.sh %s | cpio -i %s' % (file, unpack_file)
+                iterate = True
+                iterate_file = unpack_file
+            else:
+                cmd = 'rpm2cpio.sh %s | cpio -i' % (file)
         else:
-            if not 'patch' in urldata.parm:
-                # The "destdir" handling was specifically done for FILESPATH
-                # items.  So, only do so for file:// entries.
-                if urldata.type == "file" and urldata.path.find("/") != -1:
-                    destdir = urldata.path.rsplit("/", 1)[0]
-                else:
+            # If file == dest, then avoid any copies, as we already put the file into dest!
+            dest = os.path.join(rootdir, os.path.basename(file))
+            if (file != dest) and not (os.path.exists(dest) and os.path.samefile(file, dest)):
+                if os.path.isdir(file):
+                    filesdir = os.path.realpath(bb.data.getVar("FILESDIR", data, True))
                     destdir = "."
-                bb.mkdirhier("%s/%s" % (rootdir, destdir))
-                cmd = 'cp %s %s/%s/' % (file, rootdir, destdir)
+                    if file[0:len(filesdir)] == filesdir:
+                        destdir = file[len(filesdir):file.rfind('/')]
+                        destdir = destdir.strip('/')
+                        if len(destdir) < 1:
+                            destdir = "."
+                        elif not os.access("%s/%s" % (rootdir, destdir), os.F_OK):
+                            os.makedirs("%s/%s" % (rootdir, destdir))
+                    cmd = 'cp -pPR %s %s/%s/' % (file, rootdir, destdir)
+                else:
+                    if not 'patch' in urldata.parm:
+                        # The "destdir" handling was specifically done for FILESPATH
+                        # items.  So, only do so for file:// entries.
+                        if urldata.type == "file" and urldata.path.find("/") != -1:
+                           destdir = urldata.path.rsplit("/", 1)[0]
+                        else:
+                           destdir = "."
+                        bb.mkdirhier("%s/%s" % (rootdir, destdir))
+                        cmd = 'cp %s %s/%s/' % (file, rootdir, destdir)
 
         if not cmd:
             return
 
-        dest = os.path.join(rootdir, os.path.basename(file))
-        if os.path.exists(dest):
-            if os.path.samefile(file, dest):
-                return
-
         # Change to subdir before executing command
         save_cwd = os.getcwd();
         os.chdir(rootdir)
@@ -701,6 +710,11 @@ class FetchMethod(object):
         if ret != 0:
             raise UnpackError("Unpack command %s failed with return value %s" % (cmd, ret), urldata.url)
 
+        if iterate is True:
+            iterate_urldata = urldata
+            iterate_urldata.localpath = "%s/%s" % (rootdir, iterate_file)
+            self.unpack(urldata, rootdir, data)
+
         return
 
     def try_premirror(self, url, urldata, d):