binman: Overwrite symlink if it already exists

Without this re-building will fail with an error when trying to create
the symlink for the second time with an already exists error.

Signed-off-by: Andrew Davis <afd@ti.com>
[n-francis@ti.com: Added support for test output dir and testcase]
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>

diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 5b136238e67f6d393a29b5f4e339affb308d28e4..3e8091e832617b304c994b14e5c282f8220be12d 100644 (file)
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -353,7 +353,7 @@ class TestFunctional(unittest.TestCase):
                     use_expanded=False, verbosity=None, allow_missing=False,
                     allow_fake_blobs=False, extra_indirs=None, threads=None,
                     test_section_timeout=False, update_fdt_in_elf=None,
-                    force_missing_bintools='', ignore_missing=False):
+                    force_missing_bintools='', ignore_missing=False, output_dir=None):
         """Run binman with a given test file
 
         Args:
@@ -384,6 +384,7 @@ class TestFunctional(unittest.TestCase):
             update_fdt_in_elf: Value to pass with --update-fdt-in-elf=xxx
             force_missing_tools (str): comma-separated list of bintools to
                 regard as missing
+            output_dir: Specific output directory to use for image using -O
 
         Returns:
             int return code, 0 on success
@@ -430,6 +431,8 @@ class TestFunctional(unittest.TestCase):
         if extra_indirs:
             for indir in extra_indirs:
                 args += ['-I', indir]
+        if output_dir:
+            args += ['-O', output_dir]
         return self._DoBinman(*args)
 
     def _SetupDtb(self, fname, outfile='u-boot.dtb'):
@@ -6174,7 +6177,7 @@ fdt         fdtmap                Extract the devicetree blob from the fdtmap
                       str(e.exception))
 
     def testSymlink(self):
-        """Test that image files can be named"""
+        """Test that image files can be symlinked"""
         retcode = self._DoTestFile('259_symlink.dts', debug=True, map=True)
         self.assertEqual(0, retcode)
         image = control.images['test_image']
@@ -6183,6 +6186,17 @@ fdt         fdtmap                Extract the devicetree blob from the fdtmap
         self.assertTrue(os.path.islink(sname))
         self.assertEqual(os.readlink(sname), fname)
 
+    def testSymlinkOverwrite(self):
+        """Test that symlinked images can be overwritten"""
+        testdir = TestFunctional._MakeInputDir('symlinktest')
+        self._DoTestFile('259_symlink.dts', debug=True, map=True, output_dir=testdir)
+        # build the same image again in the same directory so that existing symlink is present
+        self._DoTestFile('259_symlink.dts', debug=True, map=True, output_dir=testdir)
+        fname = tools.get_output_filename('test_image.bin')
+        sname = tools.get_output_filename('symlink_to_test.bin')
+        self.assertTrue(os.path.islink(sname))
+        self.assertEqual(os.readlink(sname), fname)
+
     def testSymbolsElf(self):
         """Test binman can assign symbols embedded in an ELF file"""
         if not elf.ELF_TOOLS:

diff --git a/tools/binman/image.py b/tools/binman/image.py
index 8ebf71d61a8050e108addd315d94225f42be0b4f..e77b5d0d97cd02b88d67f9335568e4879b493646 100644 (file)
--- a/tools/binman/image.py
+++ b/tools/binman/image.py
@@ -182,6 +182,8 @@ class Image(section.Entry_section):
         # Create symlink to file if symlink given
         if self._symlink is not None:
             sname = tools.get_output_filename(self._symlink)
+            if os.path.islink(sname):
+                os.remove(sname)
             os.symlink(fname, sname)
 
     def WriteMap(self):