opkg: fix version constraints in conflicts, depends, replaces

* http://code.google.com/p/opkg/issues/detail?id=94

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 225 insertions, 0 deletions

diff --git a/meta/recipes-devtools/opkg/opkg/0009-pkg_depends-fix-version-constraints.patch b/meta/recipes-devtools/opkg/opkg/0009-pkg_depends-fix-version-constraints.patch
new file mode 100644
index 0000000000..f7aa4eac91
--- /dev/null
+++ b/meta/recipes-devtools/opkg/opkg/0009-pkg_depends-fix-version-constraints.patch
@@ -0,0 +1,188 @@
+From b93ce2249751e0d90dab38e91691a6e9f33c3512 Mon Sep 17 00:00:00 2001
+From: Martin Jansa <Martin.Jansa@gmail.com>
+Date: Sat, 29 Sep 2012 11:38:03 +0200
+Subject: [PATCH 09/10] pkg_depends: fix version constraints
+
+* factor parsing version constraint to str_to_constraint and use that
+  from pkg (pkg_version_satisfied) and also pkg_depends (parseDepends)
+* fix constraint_to_str(), for EARLIER and LATER it was using '<' and
+  '>' which is parsed later as EARLIER_EQUAL and LATER_EQUAL
+* show notice when deprecated '<' or '>' is used
+
+Upstream-Status: Submitted
+http://code.google.com/p/opkg/issues/detail?id=94
+
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ libopkg/pkg.c         | 36 +++++++++++--------------
+ libopkg/pkg_depends.c | 73 +++++++++++++++++++++++++++++----------------------
+ libopkg/pkg_depends.h |  1 +
+ 3 files changed, 59 insertions(+), 51 deletions(-)
+
+diff --git a/libopkg/pkg.c b/libopkg/pkg.c
+index 255c673..1e98b9c 100644
+--- a/libopkg/pkg.c
++++ b/libopkg/pkg.c
+@@ -968,28 +968,24 @@ pkg_version_satisfied(pkg_t *it, pkg_t *ref, const char *op)
+      int r;
+ 
+      r = pkg_compare_versions(it, ref);
++     char *op2 = op;
++     enum version_constraint constraint = str_to_constraint(&op2);
+ 
+-     if (strcmp(op, "<=") == 0 || strcmp(op, "<") == 0) {
+-	  return r <= 0;
+-     }
+-
+-     if (strcmp(op, ">=") == 0 || strcmp(op, ">") == 0) {
+-	  return r >= 0;
+-     }
+-
+-     if (strcmp(op, "<<") == 0) {
+-	  return r < 0;
+-     }
+-
+-     if (strcmp(op, ">>") == 0) {
+-	  return r > 0;
+-     }
+-
+-     if (strcmp(op, "=") == 0) {
+-	  return r == 0;
++     switch (constraint) 
++     {
++     case EARLIER_EQUAL:
++          return r <= 0;
++     case LATER_EQUAL:
++          return r >= 0;
++     case EARLIER:
++          return r < 0;
++     case LATER:
++          return r > 0;
++     case EQUAL:
++          return r == 0;
++     case NONE:
++          opkg_msg(ERROR, "Unknown operator: %s.\n", op);
+      }
+-
+-     opkg_msg(ERROR, "Unknown operator: %s.\n", op);
+      return 0;
+ }
+ 
+diff --git a/libopkg/pkg_depends.c b/libopkg/pkg_depends.c
+index a72eed7..3dd8240 100644
+--- a/libopkg/pkg_depends.c
++++ b/libopkg/pkg_depends.c
+@@ -781,7 +781,7 @@ constraint_to_str(enum version_constraint c)
+ 	case NONE:
+ 		return "";
+ 	case EARLIER:
+-		return "< ";
++		return "<< ";
+ 	case EARLIER_EQUAL:
+ 	       return "<= ";
+ 	case EQUAL:
+@@ -789,12 +789,51 @@ constraint_to_str(enum version_constraint c)
+ 	case LATER_EQUAL:
+ 	      return ">= ";
+ 	case LATER:
+-	     return "> ";
++	     return ">> ";
+ 	}
+ 
+ 	return "";
+ }
+ 
++enum version_constraint
++str_to_constraint(char **str)
++{
++	if(!strncmp(*str, "<<", 2)){
++		*str += 2;
++		return EARLIER;
++	}
++	else if(!strncmp(*str, "<=", 2)){
++		*str += 2;
++		return EARLIER_EQUAL;
++	}
++	else if(!strncmp(*str, ">=", 2)){
++		*str += 2;
++		return LATER_EQUAL;
++	}
++	else if(!strncmp(*str, ">>", 2)){
++		*str += 2;
++		return LATER;
++	}
++	else if(!strncmp(*str, "=", 1)){
++		*str += 1;
++		return EQUAL;
++	}
++	/* should these be here to support deprecated designations; dpkg does */
++	else if(!strncmp(*str, "<", 1)){
++		*str += 1;
++		opkg_msg(NOTICE, "Deprecated version constraint '<' was used with the same meaning as '<='. Use '<<' for EARLIER constraint.\n");
++		return EARLIER_EQUAL;
++	}
++	else if(!strncmp(*str, ">", 1)){
++		*str += 1;
++		opkg_msg(NOTICE, "Deprecated version constraint '>' was used with the same meaning as '>='. Use '>>' for LATER constraint.\n");
++		return LATER_EQUAL;
++	}
++	else {
++		return NONE;
++	}
++}
++
+ /*
+  * Returns a printable string for pkg's dependency at the specified idx. The
+  * resultant string must be passed to free() by the caller.
+@@ -949,35 +988,7 @@ static int parseDepends(compound_depend_t *compound_depend,
+ 	  /* extract constraint and version */
+ 	  if(*src == '('){
+ 	       src++;
+-	       if(!strncmp(src, "<<", 2)){
+-		    possibilities[i]->constraint = EARLIER;
+-		    src += 2;
+-	       }
+-	       else if(!strncmp(src, "<=", 2)){
+-		    possibilities[i]->constraint = EARLIER_EQUAL;
+-		    src += 2;
+-	       }
+-	       else if(!strncmp(src, ">=", 2)){
+-		    possibilities[i]->constraint = LATER_EQUAL;
+-		    src += 2;
+-	       }
+-	       else if(!strncmp(src, ">>", 2)){
+-		    possibilities[i]->constraint = LATER;
+-		    src += 2;
+-	       }
+-	       else if(!strncmp(src, "=", 1)){
+-		    possibilities[i]->constraint = EQUAL;
+-		    src++;
+-	       }
+-	       /* should these be here to support deprecated designations; dpkg does */
+-	       else if(!strncmp(src, "<", 1)){
+-		    possibilities[i]->constraint = EARLIER_EQUAL;
+-		    src++;
+-	       }
+-	       else if(!strncmp(src, ">", 1)){
+-		    possibilities[i]->constraint = LATER_EQUAL;
+-		    src++;
+-	       }
++	       possibilities[i]->constraint = str_to_constraint(&src);
+ 
+ 	       /* now we have any constraint, pass space to version string */
+ 	       while(isspace(*src)) src++;
+diff --git a/libopkg/pkg_depends.h b/libopkg/pkg_depends.h
+index ca0801f..685a722 100644
+--- a/libopkg/pkg_depends.h
++++ b/libopkg/pkg_depends.h
+@@ -87,6 +87,7 @@ pkg_vec_t * pkg_hash_fetch_conflicts(pkg_t * pkg);
+ int pkg_dependence_satisfiable(depend_t *depend);
+ int pkg_dependence_satisfied(depend_t *depend);
+ const char* constraint_to_str(enum version_constraint c);
++enum version_constraint str_to_constraint(char **str);
+ int is_pkg_in_pkg_vec(pkg_vec_t * vec, pkg_t * pkg);
+ 
+ #endif
+-- 
+1.7.12
+
diff --git a/meta/recipes-devtools/opkg/opkg/0010-pkg_depends-fix-version_constraints_satisfied.patch b/meta/recipes-devtools/opkg/opkg/0010-pkg_depends-fix-version_constraints_satisfied.patch
new file mode 100644
index 0000000000..a13d6585c3
--- /dev/null
+++ b/meta/recipes-devtools/opkg/opkg/0010-pkg_depends-fix-version_constraints_satisfied.patch
@@ -0,0 +1,37 @@
+From e9add8fe4a63ef14aba8bd238ddde84d5470b611 Mon Sep 17 00:00:00 2001
+From: Martin Jansa <Martin.Jansa@gmail.com>
+Date: Sat, 29 Sep 2012 18:56:01 +0200
+Subject: [PATCH 10/10] pkg_depends: fix version_constraints_satisfied
+
+* with
+  Package: a
+  Version: 1
+  and
+  Conflicts: a (<< 1)
+  we have comparison == 0, but constraint EARLIER is not satisfied!
+
+Upstream-Status: Submitted
+http://code.google.com/p/opkg/issues/detail?id=94
+
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ libopkg/pkg_depends.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/libopkg/pkg_depends.c b/libopkg/pkg_depends.c
+index 3dd8240..be81b7f 100644
+--- a/libopkg/pkg_depends.c
++++ b/libopkg/pkg_depends.c
+@@ -464,7 +464,8 @@ int version_constraints_satisfied(depend_t * depends, pkg_t * pkg)
+     else if((depends->constraint == LATER) &&
+ 	    (comparison > 0))
+ 	return 1;
+-    else if(comparison == 0)
++    else if((depends->constraint == EQUAL) && 
++	    (comparison == 0))
+ 	return 1;
+     else if((depends->constraint == LATER_EQUAL) &&
+ 	    (comparison >= 0))
+-- 
+1.7.12
+