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pkg: add pkg_verify_dependency()

feature/tap-sh
William Pitcock 2011-07-26 12:17:45 -05:00
parent a362c7e936
commit f8638cdb68
1 changed files with 50 additions and 1 deletions
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51
pkg.c
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@ -142,6 +142,55 @@ pkg_compare_version(const char *a, const char *b)
return 1; return 1;
} }
/*
* pkg_verify_dependency(pkgdep)
*
* verify a pkg_dependency_t node in the depgraph. if the dependency is solvable,
* return the appropriate pkg_t object, else NULL.
*/
pkg_t *
pkg_verify_dependency(pkg_dependency_t *pkgdep)
{
pkg_t *pkg;
pkg = pkg_find(pkgdep->package);
if (pkg == NULL)
return NULL;
switch(pkgdep->compare)
{
case PKG_LESS_THAN:
if (pkg_compare_version(pkgdep->version, pkg->version) < 0)
return pkg;
break;
case PKG_GREATER_THAN:
if (pkg_compare_version(pkgdep->version, pkg->version) > 0)
return pkg;
break;
case PKG_LESS_THAN_EQUAL:
if (pkg_compare_version(pkgdep->version, pkg->version) <= 0)
return pkg;
break;
case PKG_GREATER_THAN_EQUAL:
if (pkg_compare_version(pkgdep->version, pkg->version) >= 0)
return pkg;
break;
case PKG_EQUAL:
if (pkg_compare_version(pkgdep->version, pkg->version) == 0)
return pkg;
break;
case PKG_NOT_EQUAL:
if (pkg_compare_version(pkgdep->version, pkg->version) != 0)
return pkg;
break;
case PKG_ANY:
default:
return pkg;
}
return NULL;
}
/* /*
* pkg_verify_graph(root, depth) * pkg_verify_graph(root, depth)
* *
@ -172,7 +221,7 @@ pkg_traverse(pkg_t *root,
if (*node->package == '\0') if (*node->package == '\0')
continue; continue;
pkgdep = pkg_find(node->package); pkgdep = pkg_verify_dependency(node);
if (pkgdep == NULL) if (pkgdep == NULL)
{ {
fprintf(stderr, "Package %s was not found in the pkg-config search path.\n", node->package); fprintf(stderr, "Package %s was not found in the pkg-config search path.\n", node->package);