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Changed cl:ignore-compare to also include core diff algorithm

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This commit is contained in:
Olof hagsand 2024-02-09 16:18:47 +01:00
parent 4ee6b48abe
commit 6ff1588397
4 changed files with 127 additions and 103 deletions
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51
lib/src/clixon_xml_map.c
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@ -373,8 +373,9 @@ xml_diff_ordered_by_user(cxobj *x0,
* (*) "comparing" a&b here is made by xml_cmp() which judges equality from a structural
* perspective, ie both have the same yang spec, if they are lists, they have the
* the same keys. NOT that the values are equal!
* @see xml_diff API function, this one is internal and recursive
* @see xml_diff2cbuf, clixon_text_diff2cbuf for +/- diff for XML and TEXT formats
* @see text_diff2cbuf for curly
* @see xml_tree_equal Equal or not
* @note reordering in ordered-by user is NOT supported
*/
static int
@ -391,13 +392,14 @@ xml_diff1(cxobj *x0,
int retval = -1;
cxobj *x0c = NULL; /* x0 child */
cxobj *x1c = NULL; /* x1 child */
yang_stmt *yc0;
yang_stmt *yc1;
yang_stmt *y0c;
yang_stmt *y1c;
char *b0;
char *b1;
int eq;
cxobj *xi;
cxobj *xj;
int extflag;
/* Traverse x0 and x1 in lock-step */
x0c = x1c = NULL;
@ -406,7 +408,32 @@ xml_diff1(cxobj *x0,
for (;;){
if (x0c == NULL && x1c == NULL)
goto ok;
else if (x0c == NULL){
/* If cl:ignore-compare extension, return equal */
if (x0c && (y0c = xml_spec(x0c)) != NULL){
if (yang_extension_value(y0c, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag){ /* skip */
if (x1c) {
x0c = xml_child_each(x0, x0c, CX_ELMNT);
continue;
}
else
goto ok;
}
}
if (x1c && (y1c = xml_spec(x1c)) != NULL){
if (yang_extension_value(y1c, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)
goto done;
if (extflag){ /* skip */
if (x1c) {
x1c = xml_child_each(x1, x1c, CX_ELMNT);
continue;
}
else
goto ok;
}
}
if (x0c == NULL){
if (cxvec_append(x1c, x1vec, x1veclen) < 0)
goto done;
x1c = xml_child_each(x1, x1c, CX_ELMNT);
@ -420,11 +447,9 @@ xml_diff1(cxobj *x0,
}
/* Both x0c and x1c exists, check if they are yang-equal. */
eq = xml_cmp(x0c, x1c, 0, 0, NULL);
yc0 = xml_spec(x0c);
yc1 = xml_spec(x1c);
/* override ordered-by user with special look-ahead checks */
if (eq && yc0 && yc1 && yc0 == yc1 && yang_find(yc0, Y_ORDERED_BY, "user")){
if (xml_diff_ordered_by_user(x0, x1, x0c, x1c, yc0,
if (eq && y0c && y1c && y0c == y1c && yang_find(y0c, Y_ORDERED_BY, "user")){
if (xml_diff_ordered_by_user(x0, x1, x0c, x1c, y0c,
x0vec, x0veclen, x1vec, x1veclen,
changed_x0, changed_x1, changedlen) < 0)
goto done;
@ -439,7 +464,7 @@ xml_diff1(cxobj *x0,
}
}
while ((xi = xml_child_each(x0, xi, CX_ELMNT)) != NULL &&
xml_spec(xi) == yc0);
xml_spec(xi) == y0c);
x0c = xi;
/* Add all in x1 marked as ADD in x1vec */
@ -450,7 +475,7 @@ xml_diff1(cxobj *x0,
goto done;
}
while ((xj = xml_child_each(x1, xj, CX_ELMNT)) != NULL &&
xml_spec(xj) == yc1);
xml_spec(xj) == y1c);
x1c = xj;
continue;
}
@ -470,13 +495,13 @@ xml_diff1(cxobj *x0,
/* xml-spec NULL could happen with anydata children for example,
* if so, continute compare children but without yang
*/
if (yc0 && yc1 && yc0 != yc1){ /* choice */
if (y0c && y1c && y0c != y1c){ /* choice */
if (cxvec_append(x0c, x0vec, x0veclen) < 0)
goto done;
if (cxvec_append(x1c, x1vec, x1veclen) < 0)
goto done;
}
else if (yc0 && yang_keyword_get(yc0) == Y_LEAF){
else if (y0c && yang_keyword_get(y0c) == Y_LEAF){
/* if x0c and x1c are leafs w bodies, then they may be changed */
b0 = xml_body(x0c);
b1 = xml_body(x1c);
@ -594,6 +619,8 @@ xml_tree_equal(cxobj *x0,
for (;;){
if (x0c == NULL && x1c == NULL)
goto ok;
y0c = NULL;
y1c = NULL;
/* If cl:ignore-compare extension, return equal */
if (x0c && (y0c = xml_spec(x0c)) != NULL){
if (yang_extension_value(y0c, "ignore-compare", CLIXON_LIB_NS, &extflag, NULL) < 0)