OpenPKG CVS Repository
http://cvs.openpkg.org/
____________________________________________________________________________
Server: cvs.openpkg.org Name: Ralf S. Engelschall
Root: /v/openpkg/cvs Email: [EMAIL PROTECTED]
Module: openpkg-src Date: 07-Mar-2008 13:41:38
Branch: HEAD Handle: 2008030712413600
Added files:
openpkg-src/monotone monotone.patch
Modified files:
openpkg-src/monotone monotone.spec
Log:
improve the world by fixing a very subtle bug in Monotone's 'mtn diff'
processing which bite me the second time now and hence was no longer
acceptable to me to be ignored
Summary:
Revision Changes Path
1.13 +132 -0 openpkg-src/monotone/monotone.patch
1.31 +3 -1 openpkg-src/monotone/monotone.spec
____________________________________________________________________________
patch -p0 <<'@@ .'
Index: openpkg-src/monotone/monotone.patch
============================================================================
$ cvs diff -u -r0 -r1.13 monotone.patch
--- /dev/null 2008-03-07 13:36:05 +0100
+++ monotone.patch 2008-03-07 13:41:37 +0100
@@ -0,0 +1,132 @@
+Fix "mtn diff" output by handling the special cases of missing trailing
+newline at end of file. This makes the output compatible with GNU
+diffutils' diff(1) and especially allows it to be correctly applied with
+GNU patch(1) again, too.
+
+The source of the problem is that diff_patch:cc:make_diff() called the
+generic function simplestring_xform.cc:split_into_lines() for splitting
+the file data into individual lines, this way removed all(!) newlines at
+all and hence lost the information about the special case of a missing
+trailing newline.
+
+The least invasive fix is to already preserve the information in
+simplestring_xform.cc:split_into_lines() by representing the missing
+newline with the appended text "[\r]\n\\No newline at end of file" on
+the last line (notice that this is the only case were a line can still
+contain a newline after splitting).
+
+Additionally, diff_patch.cc:walk_hunk_consumer() for unknown reasons
+produces added before deleted lines (instead of the expection order of
+deleted before added lines) and hence also had to be fixed in order to
+produce output 100% compatible to GNU diff(1).
+
+Finally, two existing tests related to diff_patch.cc:walk_hunk_consumer()
+were adjusted and a new test suite was added for checking all four
+special cases related to the missing trailing newline. The complete
+Monotone test suite still succeeed with 0 failures after this change.
+
+Index: diff_patch.cc
+--- diff_patch.cc e359a4c03c6ce548d6414dce11160fbcb6fcb831
++++ diff_patch.cc daeb9be7d8c10d33781b54debd541027618dbfce
+@@ -1010,17 +1010,17 @@ void walk_hunk_consumer(vector<long, QA(
+ while (idx(lines2,b) != *i)
+ cons.insert_at(b++);
+ }
+- if (b < lines2.size())
++ if (a < lines1.size())
+ {
+ cons.advance_to(a);
+- while(b < lines2.size())
+- cons.insert_at(b++);
++ while(a < lines1.size())
++ cons.delete_at(a++);
+ }
+- if (a < lines1.size())
++ if (b < lines2.size())
+ {
+ cons.advance_to(a);
+- while(a < lines1.size())
+- cons.delete_at(a++);
++ while(b < lines2.size())
++ cons.insert_at(b++);
+ }
+ cons.flush_hunk(a);
+ }
+@@ -1349,8 +1349,8 @@ make_diff(string const & filename1,
+ }
+
+ vector<string> lines1, lines2;
+- split_into_lines(data1(), lines1);
+- split_into_lines(data2(), lines2);
++ split_into_lines(data1(), lines1, true);
++ split_into_lines(data2(), lines2, true);
+
+ vector<long, QA(long)> left_interned;
+ vector<long, QA(long)> right_interned;
+Index: simplestring_xform.cc
+--- simplestring_xform.cc 5f2e4fcd288a2ec1fd59feb97ebc777b56597608
++++ simplestring_xform.cc dcaa75eb0ed67ddc119ef62f06c21bd7d13bf5cb
+@@ -50,9 +50,24 @@ void split_into_lines(string const & in,
+ }
+
+ void split_into_lines(string const & in,
++ vector<string> & out,
++ bool diff_compat)
++{
++ return split_into_lines(in, constants::default_encoding, out,
diff_compat);
++}
++
++void split_into_lines(string const & in,
+ string const & encoding,
+ vector<string> & out)
+ {
++ return split_into_lines(in, encoding, out, false);
++}
++
++void split_into_lines(string const & in,
++ string const & encoding,
++ vector<string> & out,
++ bool diff_compat)
++{
+ string lc_encoding = lowercase(encoding);
+ out.clear();
+
+@@ -92,8 +107,16 @@ void split_into_lines(string const & in,
+ break;
+ end = in.find_first_of("\r\n", begin);
+ }
+- if (begin < in.size())
+- out.push_back(in.substr(begin, in.size() - begin));
++ if (begin < in.size()) {
++ // special case: last line without trailing newline
++ string s = in.substr(begin, in.size() - begin);
++ if (diff_compat) {
++ // special handling: produce diff(1) compatible output
++ s += (in.find_first_of("\r") != string::npos ? "\r\n" : "\n");
++ s += "\\ No newline at end of file";
++ }
++ out.push_back(s);
++ }
+ }
+ else
+ {
+Index: simplestring_xform.hh
+--- simplestring_xform.hh 0280d49b889bc0b7b2900d5d123cc8ec95a115eb
++++ simplestring_xform.hh 564a305c99ca931c93956ac3ef903683dcb15db7
+@@ -13,6 +13,15 @@ void split_into_lines(std::string const
+ std::string const & encoding,
+ std::vector<std::string> & out);
+
++void split_into_lines(std::string const & in,
++ std::vector<std::string> & out,
++ bool diff_compat);
++
++void split_into_lines(std::string const & in,
++ std::string const & encoding,
++ std::vector<std::string> & out,
++ bool diff_compat);
++
+ void join_lines(std::vector<std::string> const & in,
+ std::string & out,
+ std::string const & linesep);
+
@@ .
patch -p0 <<'@@ .'
Index: openpkg-src/monotone/monotone.spec
============================================================================
$ cvs diff -u -r1.30 -r1.31 monotone.spec
--- openpkg-src/monotone/monotone.spec 27 Feb 2008 19:14:59 -0000
1.30
+++ openpkg-src/monotone/monotone.spec 7 Mar 2008 12:41:36 -0000
1.31
@@ -32,7 +32,7 @@
Group: SCM
License: GPL
Version: 0.39
-Release: 20080227
+Release: 20080307
# package options
%option with_rse yes
@@ -44,6 +44,7 @@
Source4: monotone-colorize.pl
Source5: monotone-colorize.bashrc
Source6: monotone.bashrc
+Patch0: monotone.patch
Patch1: monotone.patch.rse
# build information
@@ -76,6 +77,7 @@
%prep
%setup -q
+ %patch -p0 -P 0
%if "%{with_rse}" == "yes"
%patch -p0 -P 1
%endif
@@ .
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