[PATCH 3 of 6 V2] tests: make chunk header of external diff glob-ed for portability

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1454923757 -32400
#      Mon Feb 08 18:29:17 2016 +0900
# Node ID f142161fb45f90312f44f3502f746f99e93b1ad2
# Parent  a90f38441d8f1d9425739a5400e84537f9b648a8
tests: make chunk header of external diff glob-ed for portability

Before this patch, some tests using external "diff" command via
extdiff extension fail on Solaris, because system standard "diff" (=
/usr/bin/diff) on Solaris always formats chunk header in the style
below:

  @@ -X.x +Y.y @@

even though "diff" on Linux sometimes omits ".x" and/or ".y" in it.

This patch makes chunk header of external diff glob-ed for portability
of tests, and adds check-code.py rules to detect such diff output in
tests.

This patch also changes "hg diff" output in test-subrepo-git to
simplify detection rules, even though it is certainly portable because
these lines are generated by "git" command.

This patch is a part of making tests using external "diff" portable,
and tests below aren't yet portable even after this patch.

  test-largefiles-update.t
  test-subrepo-deep-nested-change.t

diff --git a/contrib/check-code.py b/contrib/check-code.py
--- a/contrib/check-code.py
+++ b/contrib/check-code.py
@@ -180,6 +180,12 @@ utestpats = [
      "don't use (external) diff with -p for portability"),
     (r'^  [-+][-+][-+] .* [-+]0000 \(glob\)',
      "glob timezone field in diff output for portability"),
+    (r'^  @@ -[0-9]+ [+][0-9]+,[0-9]+ @@',
+     "use '@@ -N* +N,n @@ (glob)' style chunk header for portability"),
+    (r'^  @@ -[0-9]+,[0-9]+ [+][0-9]+ @@',
+     "use '@@ -N,n +N* @@ (glob)' style chunk header for portability"),
+    (r'^  @@ -[0-9]+ [+][0-9]+ @@',
+     "use '@@ -N* +N* @@ (glob)' style chunk header for portability"),
   ],
   # warnings
   [
diff --git a/tests/test-largefiles-update.t b/tests/test-largefiles-update.t
--- a/tests/test-largefiles-update.t
+++ b/tests/test-largefiles-update.t
@@ -27,13 +27,13 @@ directory (and ".hg/largefiles/dirstate"
   diff -Nru repo.0d9d9b8dc9a3/.hglf/large1 repo/.hglf/large1
   --- repo.0d9d9b8dc9a3/.hglf/large1	* (glob)
   +++ repo/.hglf/large1	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -4669e532d5b2c093a78eca010077e708a071bb64
   +58e24f733a964da346e2407a2bee99d9001184f5
   diff -Nru repo.0d9d9b8dc9a3/normal1 repo/normal1
   --- repo.0d9d9b8dc9a3/normal1	* (glob)
   +++ repo/normal1	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -normal1
   +normal1 in #1
   [1]
diff --git a/tests/test-subrepo-deep-nested-change.t b/tests/test-subrepo-deep-nested-change.t
--- a/tests/test-subrepo-deep-nested-change.t
+++ b/tests/test-subrepo-deep-nested-change.t
@@ -723,13 +723,13 @@ Interaction with extdiff, largefiles and
   diff -Nru cloned.*/.hgsub cloned/.hgsub (glob)
   --- cloned.*/.hgsub	* (glob)
   +++ cloned/.hgsub	* (glob)
-  @@ -1,2 +1 @@
+  @@ -1,2 +1* @@ (glob)
    sub1 = ../sub1
   -sub3 = sub3
   diff -Nru cloned.*/.hgsubstate cloned/.hgsubstate (glob)
   --- cloned.*/.hgsubstate	* (glob)
   +++ cloned/.hgsubstate	* (glob)
-  @@ -1,2 +1 @@
+  @@ -1,2 +1* @@ (glob)
    7a36fa02b66e61f27f3d4a822809f159479b8ab2 sub1
   -b1a26de6f2a045a9f079323693614ee322f1ff7e sub3
   [1]
@@ -738,63 +738,63 @@ Interaction with extdiff, largefiles and
   diff -Nru cloned.*/.hglf/b.dat cloned.*/.hglf/b.dat (glob)
   --- cloned.*/.hglf/b.dat	* (glob)
   +++ cloned.*/.hglf/b.dat	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +da39a3ee5e6b4b0d3255bfef95601890afd80709
   diff -Nru cloned.*/.hglf/foo/bar/large.dat cloned.*/.hglf/foo/bar/large.dat (glob)
   --- cloned.*/.hglf/foo/bar/large.dat	* (glob)
   +++ cloned.*/.hglf/foo/bar/large.dat	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +2f6933b5ee0f5fdd823d9717d8729f3c2523811b
   diff -Nru cloned.*/.hglf/large.bin cloned.*/.hglf/large.bin (glob)
   --- cloned.*/.hglf/large.bin	* (glob)
   +++ cloned.*/.hglf/large.bin	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +7f7097b041ccf68cc5561e9600da4655d21c6d18
   diff -Nru cloned.*/.hgsub cloned.*/.hgsub (glob)
   --- cloned.*/.hgsub	* (glob)
   +++ cloned.*/.hgsub	* (glob)
-  @@ -1 +1,2 @@
+  @@ -1* +1,2 @@ (glob)
    sub1 = ../sub1
   +sub3 = sub3
   diff -Nru cloned.*/.hgsubstate cloned.*/.hgsubstate (glob)
   --- cloned.*/.hgsubstate	* (glob)
   +++ cloned.*/.hgsubstate	* (glob)
-  @@ -1 +1,2 @@
+  @@ -1* +1,2 @@ (glob)
   -fc3b4ce2696f7741438c79207583768f2ce6b0dd sub1
   +7a36fa02b66e61f27f3d4a822809f159479b8ab2 sub1
   +b1a26de6f2a045a9f079323693614ee322f1ff7e sub3
   diff -Nru cloned.*/foo/bar/def cloned.*/foo/bar/def (glob)
   --- cloned.*/foo/bar/def	* (glob)
   +++ cloned.*/foo/bar/def	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +changed
   diff -Nru cloned.*/main cloned.*/main (glob)
   --- cloned.*/main	* (glob)
   +++ cloned.*/main	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -main
   +foo
   diff -Nru cloned.*/sub1/.hgsubstate cloned.*/sub1/.hgsubstate (glob)
   --- cloned.*/sub1/.hgsubstate	* (glob)
   +++ cloned.*/sub1/.hgsubstate	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -c57a0840e3badd667ef3c3ef65471609acb2ba3c sub2
   +c77908c81ccea3794a896c79e98b0e004aee2e9e sub2
   diff -Nru cloned.*/sub1/sub2/folder/test.txt cloned.*/sub1/sub2/folder/test.txt (glob)
   --- cloned.*/sub1/sub2/folder/test.txt	* (glob)
   +++ cloned.*/sub1/sub2/folder/test.txt	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +subfolder
   diff -Nru cloned.*/sub1/sub2/sub2 cloned.*/sub1/sub2/sub2 (glob)
   --- cloned.*/sub1/sub2/sub2	* (glob)
   +++ cloned.*/sub1/sub2/sub2	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -sub2
   +modified
   diff -Nru cloned.*/sub3/a.txt cloned.*/sub3/a.txt (glob)
   --- cloned.*/sub3/a.txt	* (glob)
   +++ cloned.*/sub3/a.txt	* (glob)
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +xyz
   [1]
 
@@ -802,7 +802,7 @@ Interaction with extdiff, largefiles and
   $ hg --config extensions.extdiff= extdiff -S
   --- */cloned.*/sub1/sub2/sub2	* (glob)
   +++ */cloned/sub1/sub2/sub2	* (glob)
-  @@ -1 +1 @@
+  @@ -1* +1* @@ (glob)
   -modified
   +mod
   [1]
diff --git a/tests/test-subrepo-git.t b/tests/test-subrepo-git.t
--- a/tests/test-subrepo-git.t
+++ b/tests/test-subrepo-git.t
@@ -785,7 +785,7 @@ add new changes, including whitespace
   index 0000000..257cc56
   --- /dev/null
   +++ b/s/barfoo
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +foo
   $ hg diff --subrepos s/foobar
   diff --git a/s/foobar b/s/foobar
@@ -827,7 +827,7 @@ adding an exclude should ignore this ele
   index 0000000..257cc56
   --- /dev/null
   +++ b/s/barfoo
-  @@ -0,0 +1 @@
+  @@ -0,0 +1* @@ (glob)
   +foo
 
 moving a file should show a removal and an add