VersionCmpResult CompareVersions(EvalContext *ctx, const char *v1, const char *v2, Attributes a,
const Promise *pp, PromiseResult *result)
{
VersionCmpResult cmp_result;
const char *cmp_operator = "";
switch (a.packages.package_select)
{
case PACKAGE_VERSION_COMPARATOR_EQ:
case PACKAGE_VERSION_COMPARATOR_NONE:
cmp_result = CompareVersionsEqual(ctx, v1, v2, a, pp, result);
cmp_operator = "==";
break;
case PACKAGE_VERSION_COMPARATOR_NEQ:
cmp_result = InvertResult(CompareVersionsEqual(ctx, v1, v2, a, pp, result));
cmp_operator = "!=";
break;
case PACKAGE_VERSION_COMPARATOR_LT:
cmp_result = CompareVersionsLess(ctx, v1, v2, a, pp, result);
cmp_operator = "<";
break;
case PACKAGE_VERSION_COMPARATOR_GT:
cmp_result = CompareVersionsLess(ctx, v2, v1, a, pp, result);
cmp_operator = ">";
break;
case PACKAGE_VERSION_COMPARATOR_GE:
cmp_result = InvertResult(CompareVersionsLess(ctx, v1, v2, a, pp, result));
cmp_operator = ">=";
break;
case PACKAGE_VERSION_COMPARATOR_LE:
cmp_result = InvertResult(CompareVersionsLess(ctx, v2, v1, a, pp, result));
cmp_operator = "<=";
break;
default:
ProgrammingError("Unexpected comparison value: %d", a.packages.package_select);
break;
}
const char *text_result;
switch (cmp_result)
{
case VERCMP_NO_MATCH:
text_result = "no";
break;
case VERCMP_MATCH:
text_result = "yes";
break;
default:
text_result = "Incompatible version format. Can't decide";
break;
}
Log(LOG_LEVEL_VERBOSE, "Checking whether package version %s %s %s: %s", v1, cmp_operator, v2, text_result);
return cmp_result;
}
VersionCmpResult CompareVersions(const char *v1, const char *v2, Attributes a, Promise *pp)
{
switch (a.packages.package_select)
{
case cfa_eq:
case cfa_cmp_none: return CompareVersionsEqual(v1, v2, a, pp);
case cfa_neq: return InvertResult(CompareVersionsEqual(v1, v2, a, pp));
case cfa_lt: return CompareVersionsLess(v1, v2, a, pp);
case cfa_gt: return CompareVersionsLess(v2, v1, a, pp);
case cfa_ge: return InvertResult(CompareVersionsLess(v1, v2, a, pp));
case cfa_le: return InvertResult(CompareVersionsLess(v2, v1, a, pp));
default: FatalError("Unexpected comparison value: %d", a.packages.package_select);
}
}
static VersionCmpResult CompareVersionsEqual(EvalContext *ctx, const char *v1, const char *v2, Attributes a, Promise *pp)
{
if (a.packages.package_version_equal_command)
{
return RunCmpCommand(ctx, a.packages.package_version_equal_command, v1, v2, a, pp);
}
else if (a.packages.package_version_less_command)
{
/* emulate v1 == v2 by !(v1 < v2) && !(v2 < v1) */
return AndResults(InvertResult(CompareVersionsLess(ctx, v1, v2, a, pp)),
InvertResult(CompareVersionsLess(ctx, v2, v1, a, pp)));
}
else
{
/* Built-in fallback */
return ComparePackageVersionsInternal(v1, v2, PACKAGE_VERSION_COMPARATOR_EQ);
}
}
static VersionCmpResult CompareVersionsEqual(const char *v1, const char *v2, Attributes a, Promise *pp)
{
if (a.packages.package_version_equal_command)
{
return RunCmpCommand(a.packages.package_version_equal_command, v1, v2, a, pp);
}
else if (a.packages.package_version_less_command)
{
/* emulate v1 == v2 by !(v1 < v2) && !(v2 < v1) */
return AndResults(InvertResult(CompareVersionsLess(v1, v2, a, pp)),
InvertResult(CompareVersionsLess(v2, v1, a, pp)));
}
else
{
/* Built-in fallback */
return ComparePackageVersionsInternal(v1, v2, cfa_eq);
}
}
VersionCmpResult CompareVersions(EvalContext *ctx, const char *v1, const char *v2, Attributes a, Promise *pp)
{
switch (a.packages.package_select)
{
case PACKAGE_VERSION_COMPARATOR_EQ:
case PACKAGE_VERSION_COMPARATOR_NONE:
return CompareVersionsEqual(ctx, v1, v2, a, pp);
case PACKAGE_VERSION_COMPARATOR_NEQ:
return InvertResult(CompareVersionsEqual(ctx, v1, v2, a, pp));
case PACKAGE_VERSION_COMPARATOR_LT:
return CompareVersionsLess(ctx, v1, v2, a, pp);
case PACKAGE_VERSION_COMPARATOR_GT:
return CompareVersionsLess(ctx, v2, v1, a, pp);
case PACKAGE_VERSION_COMPARATOR_GE:
return InvertResult(CompareVersionsLess(ctx, v1, v2, a, pp));
case PACKAGE_VERSION_COMPARATOR_LE:
return InvertResult(CompareVersionsLess(ctx, v2, v1, a, pp));
default:
ProgrammingError("Unexpected comparison value: %d", a.packages.package_select);
}
}
