# HG changeset patch
# User Benoit Boissinot <benoit.boissinot@ens-lyon.org>
# Date 1269035558 -3600
# Node ID d94832c4a31d49eb5747c364540c9fd36f639689
# Parent  0e8403f4ce317c7b68dfa73d0e3aff8b7cb48528
patch: try harder to find the file to patch on file creation (issue2041)

accept the following patch header:
first line:  foo/a.orig
second line: foo/a

diff -r 0e8403f4ce31 -r d94832c4a31d mercurial/patch.py
--- a/mercurial/patch.py	Fri Mar 19 16:04:00 2010 -0500
+++ b/mercurial/patch.py	Fri Mar 19 22:52:38 2010 +0100
@@ -933,8 +933,10 @@
     missing = not goodb and not gooda and not createfunc()
 
     # some diff programs apparently produce create patches where the
-    # afile is not /dev/null, but rather the same name as the bfile
-    if missing and afile == bfile:
+    # afile is not /dev/null, but afile starts with bfile
+    abasedir = afile[:afile.rfind('/') + 1]
+    bbasedir = bfile[:bfile.rfind('/') + 1]
+    if missing and abasedir == bbasedir and afile.startswith(bfile):
         # this isn't very pretty
         hunk.create = True
         if createfunc():
diff -r 0e8403f4ce31 -r d94832c4a31d tests/test-import
--- a/tests/test-import	Fri Mar 19 16:04:00 2010 -0500
+++ b/tests/test-import	Fri Mar 19 22:52:38 2010 +0100
@@ -351,10 +351,22 @@
 @@ -0,0 +1,1 @@
 +a
 EOF
+# some people have patches like the following too
+cat > create2.patch <<EOF
+diff -Naur proj-orig/foo proj-new/foo
+--- proj-orig/foo.orig  1969-12-31 16:00:00.000000000 -0800
++++ proj-new/foo        2009-07-17 16:50:45.801368000 -0700
+@@ -0,0 +1,1 @@
++a
+EOF
 hg init oddcreate
 cd oddcreate
 hg import --no-commit ../create.patch
 cat foo
+rm foo
+hg revert foo
+hg import --no-commit ../create2.patch
+cat foo
 
 echo % 'first line mistaken for email headers (issue 1859)'
 hg init emailconfusion
diff -r 0e8403f4ce31 -r d94832c4a31d tests/test-import.out
--- a/tests/test-import.out	Fri Mar 19 16:04:00 2010 -0500
+++ b/tests/test-import.out	Fri Mar 19 22:52:38 2010 +0100
@@ -305,6 +305,8 @@
 % create file when source is not /dev/null
 applying ../create.patch
 a
+applying ../create2.patch
+a
 % first line mistaken for email headers (issue 1859)
 applying a.patch
 changeset:   0:5a681217c0ad