1 /* -*- mode: C; c-file-style: "gnu"; fill-column: 78 -*- */
5 * Parse 'helix' XML representation
10 #include <sys/types.h>
18 #include "repo_helix.h"
22 /* XML parser states */
45 STATE_RECOMMENDSENTRY,
47 STATE_SUPPLEMENTSENTRY,
69 #define PACK_BLOCK 255
78 static struct stateswitch stateswitches[] = {
79 { STATE_START, "channel", STATE_CHANNEL, 0 },
80 { STATE_CHANNEL, "subchannel", STATE_SUBCHANNEL, 0 },
81 { STATE_SUBCHANNEL, "package", STATE_PACKAGE, 0 },
82 { STATE_SUBCHANNEL, "selection", STATE_PACKAGE, 0 },
83 { STATE_SUBCHANNEL, "pattern", STATE_PACKAGE, 0 },
84 { STATE_SUBCHANNEL, "atom", STATE_PACKAGE, 0 },
85 { STATE_SUBCHANNEL, "patch", STATE_PACKAGE, 0 },
86 { STATE_SUBCHANNEL, "product", STATE_PACKAGE, 0 },
87 { STATE_PACKAGE, "name", STATE_NAME, 1 },
88 { STATE_PACKAGE, "epoch", STATE_PEPOCH, 1 },
89 { STATE_PACKAGE, "version", STATE_PVERSION, 1 },
90 { STATE_PACKAGE, "release", STATE_PRELEASE, 1 },
91 { STATE_PACKAGE, "arch", STATE_PARCH, 1 },
92 { STATE_PACKAGE, "history", STATE_HISTORY, 0 },
93 { STATE_PACKAGE, "provides", STATE_PROVIDES, 0 },
94 { STATE_PACKAGE, "requires", STATE_REQUIRES, 0 },
95 { STATE_PACKAGE, "obsoletes", STATE_OBSOLETES , 0 },
96 { STATE_PACKAGE, "conflicts", STATE_CONFLICTS , 0 },
97 { STATE_PACKAGE, "recommends" , STATE_RECOMMENDS , 0 },
98 { STATE_PACKAGE, "supplements", STATE_SUPPLEMENTS, 0 },
99 { STATE_PACKAGE, "suggests", STATE_SUGGESTS, 0 },
100 { STATE_PACKAGE, "enhances", STATE_ENHANCES, 0 },
101 { STATE_PACKAGE, "freshens", STATE_FRESHENS, 0 },
103 { STATE_HISTORY, "update", STATE_UPDATE, 0 },
104 { STATE_UPDATE, "epoch", STATE_EPOCH, 1 },
105 { STATE_UPDATE, "version", STATE_VERSION, 1 },
106 { STATE_UPDATE, "release", STATE_RELEASE, 1 },
107 { STATE_UPDATE, "arch", STATE_ARCH, 1 },
109 { STATE_PROVIDES, "dep", STATE_PROVIDESENTRY, 0 },
110 { STATE_REQUIRES, "dep", STATE_REQUIRESENTRY, 0 },
111 { STATE_OBSOLETES, "dep", STATE_OBSOLETESENTRY, 0 },
112 { STATE_CONFLICTS, "dep", STATE_CONFLICTSENTRY, 0 },
113 { STATE_RECOMMENDS, "dep", STATE_RECOMMENDSENTRY, 0 },
114 { STATE_SUPPLEMENTS, "dep", STATE_SUPPLEMENTSENTRY, 0 },
115 { STATE_SUGGESTS, "dep", STATE_SUGGESTSENTRY, 0 },
116 { STATE_ENHANCES, "dep", STATE_ENHANCESENTRY, 0 },
117 { STATE_FRESHENS, "dep", STATE_FRESHENSENTRY, 0 },
126 typedef struct _parsedata {
129 enum state state; // current state
131 char *content; // buffer for content of node
132 int lcontent; // actual length of current content
133 int acontent; // actual buffer size
134 int docontent; // handle content
137 int pack; // number of solvables
139 Pool *pool; // current pool
140 Repo *repo; // current repo
141 Solvable *start; // collected solvables
144 int epoch; // epoch (as offset into evrspace)
145 int version; // version (as offset into evrspace)
146 int release; // release (as offset into evrspace)
147 char *evrspace; // buffer for evr
148 int aevrspace; // actual buffer space
149 int levrspace; // actual evr length
152 struct stateswitch *swtab[NUMSTATES];
153 enum state sbtab[NUMSTATES];
157 /*------------------------------------------------------------------*/
160 // create Id from epoch:version-release
163 evr2id(Pool *pool, Parsedata *pd, const char *e, const char *v, const char *r)
168 // treat explitcit 0 as NULL
169 if (e && !strcmp(e, "0"))
175 // scan version for ":"
176 for (v2 = v; *v2 >= '0' && *v2 <= '9'; v2++) // skip leading digits
178 // if version contains ":", set epoch to "0"
179 if (v2 > v && *v2 == ':')
183 // compute length of Id string
186 l += strlen(e) + 1; // e:
190 l += strlen(r) + 1; // -r
192 // extend content if not sufficient
193 if (l > pd->acontent)
195 pd->content = (char *)realloc(pd->content, l + 256);
196 pd->acontent = l + 256;
199 // copy e-v-r to content
219 // if nothing inserted, return Id 0
223 fprintf(stderr, "evr: %s\n", pd->content);
226 return str2id(pool, pd->content, 1);
230 // create e:v-r from attributes
231 // atts is array of name,value pairs, NULL at end
232 // even index into atts is name
233 // odd index is value
236 evr_atts2id(Pool *pool, Parsedata *pd, const char **atts)
238 const char *e, *v, *r;
240 for (; *atts; atts += 2)
242 if (!strcmp(*atts, "epoch"))
244 else if (!strcmp(*atts, "version"))
246 else if (!strcmp(*atts, "release"))
249 return evr2id(pool, pd, e, v, r);
252 /*------------------------------------------------------------------*/
253 /* rel operator handling */
260 static struct flagtab flagtab[] = {
263 { ">=", REL_GT|REL_EQ },
265 { "!=", REL_GT|REL_LT },
266 { "<=", REL_LT|REL_EQ },
267 { "(any)", REL_LT|REL_EQ|REL_GT },
271 { "ge", REL_GT|REL_EQ },
273 { "ne", REL_GT|REL_LT },
274 { "le", REL_LT|REL_EQ },
275 { "gte", REL_GT|REL_EQ },
276 { "lte", REL_LT|REL_EQ },
279 { "GE", REL_GT|REL_EQ },
281 { "NE", REL_GT|REL_LT },
282 { "LE", REL_LT|REL_EQ }
286 * process new dependency from parser
287 * olddeps = already collected deps, this defines the 'kind' of dep
288 * atts = array of name,value attributes of dep
289 * isreq == 1 if its a requires
293 adddep(Pool *pool, Parsedata *pd, unsigned int olddeps, const char **atts, int isreq)
296 const char *n, *f, *k;
301 /* loop over name,value pairs */
302 for (a = atts; *a; a += 2)
304 if (!strcmp(*a, "name"))
306 if (!strcmp(*a, "kind"))
308 else if (!strcmp(*a, "op"))
310 else if (isreq && !strcmp(*a, "pre") && a[1][0] == '1')
313 if (!n) /* quit if no name found */
317 if (k && !strcmp(k, "package"))
318 k = NULL; /* package is default */
320 if (k) /* if kind!=package, intern <kind>:<name> */
322 int l = strlen(k) + 1 + strlen(n) + 1;
323 if (l > pd->acontent) /* extend buffer if needed */
325 pd->content = (char *)realloc(pd->content, l + 256);
326 pd->acontent = l + 256;
328 sprintf(pd->content, "%s:%s", k, n);
329 name = str2id(pool, pd->content, 1);
332 name = str2id(pool, n, 1); /* package: just intern <name> */
335 if (f) /* operator ? */
338 Id evr = evr_atts2id(pool, pd, atts);
339 /* parser operator to flags */
341 for (flags = 0; flags < sizeof(flagtab)/sizeof(*flagtab); flags++)
342 if (!strcmp(f, flagtab[flags].from))
344 flags = flagtab[flags].to;
350 id = rel2id(pool, name, evr, flags, 1);
353 id = name; /* no operator */
355 /* add new dependency to repo */
356 return repo_addid_dep(pd->repo, olddeps, id, isreq);
360 /*----------------------------------------------------------------*/
369 startElement(void *userData, const char *name, const char **atts)
371 Parsedata *pd = (Parsedata *)userData;
372 struct stateswitch *sw;
373 Pool *pool = pd->pool;
374 Solvable *s = pd->start ? pd->start + pd->pack : 0;
376 if (pd->depth != pd->statedepth)
382 /* ignore deps element */
383 if (pd->state == STATE_PACKAGE && !strcmp(name, "deps"))
388 /* find node name in stateswitch */
389 for (sw = pd->swtab[pd->state]; sw->from == pd->state; sw++)
391 if (!strcmp(sw->ename, name))
395 /* check if we're at the right level */
396 if (sw->from != pd->state)
399 fprintf(stderr, "into unknown: %s\n", name);
407 pd->docontent = sw->docontent;
408 pd->statedepth = pd->depth;
410 // start with empty content
411 // (will collect data until end element
419 if (pd->kind) /* if kind is set (non package) */
421 strcpy(pd->content, pd->kind);
422 pd->lcontent = strlen(pd->content);
423 pd->content[pd->lcontent++] = ':'; /* prefix name with '<kind>:' */
424 pd->content[pd->lcontent] = 0;
428 case STATE_SUBCHANNEL:
433 case STATE_PACKAGE: /* solvable name */
435 if ((pd->pack & PACK_BLOCK) == 0) /* alloc new block ? */
437 pool->solvables = (Solvable *)realloc(pool->solvables, (pool->nsolvables + pd->pack + PACK_BLOCK + 1) * sizeof(Solvable));
438 pd->start = pool->solvables + pd->repo->start;
439 memset(pd->start + pd->pack, 0, (PACK_BLOCK + 1) * sizeof(Solvable));
442 if (!strcmp(name, "selection"))
443 pd->kind = "selection";
444 else if (!strcmp(name, "pattern"))
445 pd->kind = "pattern";
446 else if (!strcmp(name, "atom"))
448 else if (!strcmp(name, "product"))
449 pd->kind = "product";
450 else if (!strcmp(name, "patch"))
453 pd->kind = NULL; /* default is package */
459 fprintf(stderr, "package #%d\n", pd->pack);
470 case STATE_PROVIDES: /* start of provides */
473 case STATE_PROVIDESENTRY: /* entry within provides */
474 s->provides = adddep(pool, pd, s->provides, atts, 0);
479 case STATE_REQUIRESENTRY:
480 s->requires = adddep(pool, pd, s->requires, atts, 1);
482 case STATE_OBSOLETES:
485 case STATE_OBSOLETESENTRY:
486 s->obsoletes = adddep(pool, pd, s->obsoletes, atts, 0);
488 case STATE_CONFLICTS:
491 case STATE_CONFLICTSENTRY:
492 s->conflicts = adddep(pool, pd, s->conflicts, atts, 0);
494 case STATE_RECOMMENDS:
497 case STATE_RECOMMENDSENTRY:
498 s->recommends = adddep(pool, pd, s->recommends, atts, 0);
500 case STATE_SUPPLEMENTS:
503 case STATE_SUPPLEMENTSENTRY:
504 s->supplements = adddep(pool, pd, s->supplements, atts, 0);
509 case STATE_SUGGESTSENTRY:
510 s->suggests = adddep(pool, pd, s->suggests, atts, 0);
515 case STATE_ENHANCESENTRY:
516 s->enhances = adddep(pool, pd, s->enhances, atts, 0);
521 case STATE_FRESHENSENTRY:
522 s->freshens = adddep(pool, pd, s->freshens, atts, 0);
529 static const char* findKernelFlavor(Parsedata *pd, Solvable *s)
531 Pool *pool = pd->pool;
537 for (pidp = pd->repo->idarraydata + s->provides; pidp && (pid = *pidp++) != 0; )
543 continue; /* wrong provides name */
544 prd = GETRELDEP(pool, pid);
545 depname = id2str(pool, prd->name);
546 if (!strncmp(depname, "kernel-", strlen("kernel-")))
548 return depname + strlen("kernel-");
553 //fprintf(stderr, "pack %d\n", pd->pack);
554 //fprintf(stderr, "repo %d\n", s->requires);
559 for (pidp = pd->repo->idarraydata + s->requires ; pidp && (pid = *pidp++) != 0; )
561 const char *depname = 0;
565 depname = id2str(pool, pid);
569 Reldep *prd = GETRELDEP(pool, pid);
570 depname = id2str(pool, prd->name);
572 if (!strncmp(depname, "kernel-", strlen("kernel-")))
574 return depname + strlen("kernel-");
586 * create Solvable from collected data
590 endElement(void *userData, const char *name)
592 Parsedata *pd = (Parsedata *)userData;
593 Pool *pool = pd->pool;
594 Solvable *s = pd->start ? pd->start + pd->pack : NULL;
597 if (pd->depth != pd->statedepth)
600 // printf("back from unknown %d %d %d\n", pd->state, pd->depth, pd->statedepth);
604 /* ignore deps element */
605 if (pd->state == STATE_PACKAGE && !strcmp(name, "deps"))
613 case STATE_PACKAGE: /* package complete */
616 if (!s->arch) /* default to "noarch" */
617 s->arch = ARCH_NOARCH;
619 if (!s->evr && pd->version) /* set solvable evr */
620 s->evr = evr2id(pool, pd,
621 pd->epoch ? pd->evrspace + pd->epoch : 0,
622 pd->version ? pd->evrspace + pd->version : 0,
623 pd->release ? pd->evrspace + pd->release : 0);
624 /* ensure self-provides */
625 if (s->arch != ARCH_SRC && s->arch != ARCH_NOSRC)
626 s->provides = repo_addid_dep(pd->repo, s->provides, rel2id(pool, s->name, s->evr, REL_EQ, 1), 0);
627 s->supplements = repo_fix_legacy(pd->repo, s->provides, s->supplements);
629 const char *flavor = findKernelFlavor(pd, s);
632 char *cflavor = strdup(flavor); /* make pointer safe */
637 /* this is either a kernel package or a kmp */
640 Offset prov = s->provides;
642 while ((pid = pd->repo->idarraydata[prov++]) != 0)
644 const char *depname = 0;
649 prd = GETRELDEP(pool, pid);
650 depname = id2str(pool, prd->name);
654 depname = id2str(pool, pid);
658 if (!strncmp(depname, "kernel(", strlen("kernel(")) && !strchr(depname, ':'))
661 strcpy(newdep, "kernel(");
662 strncat(newdep, cflavor, sizeof(newdep));
663 strncat(newdep, ":", sizeof(newdep));
664 strncat(newdep, depname + strlen("kernel("), 100);
665 pid = str2id(pool, newdep, 1);
667 pid = rel2id(pool, pid, prd->evr, prd->flags, 1);
670 npr = repo_addid_dep(pd->repo, npr, pid, 0);
678 Offset reqs = s->requires;
680 while ((pid = pd->repo->idarraydata[reqs++]) != 0)
682 const char *depname = 0;
687 prd = GETRELDEP(pool, pid);
688 depname = id2str(pool, prd->name);
692 depname = id2str(pool, pid);
695 if (!strncmp(depname, "kernel(", strlen("kernel(")) && !strchr(depname, ':'))
698 strcpy(newdep, "kernel(");
699 strncat(newdep, cflavor, sizeof(newdep));
700 strncat(newdep, ":", sizeof(newdep));
701 strncat(newdep, depname + strlen("kernel("), 100);
702 pid = str2id(pool, newdep, 1);
704 pid = rel2id(pool, pid, prd->evr, prd->flags, 1);
706 npr = repo_addid_dep(pd->repo, npr, pid, 0);
714 pd->pack++; /* inc pack count */
718 s->name = str2id(pool, pd->content, 1);
720 case STATE_UPDATE: /* new version, keeping all other metadata */
721 evr = evr2id(pool, pd,
722 pd->epoch ? pd->evrspace + pd->epoch : 0,
723 pd->version ? pd->evrspace + pd->version : 0,
724 pd->release ? pd->evrspace + pd->release : 0);
729 /* use highest evr */
730 if (!s->evr || evrcmp(pool, s->evr, evr) <= 0)
739 /* ensure buffer space */
740 if (pd->lcontent + 1 + pd->levrspace > pd->aevrspace)
742 pd->evrspace = (char *)realloc(pd->evrspace, pd->lcontent + 1 + pd->levrspace + 256);
743 pd->aevrspace = pd->lcontent + 1 + pd->levrspace + 256;
745 memcpy(pd->evrspace + pd->levrspace, pd->content, pd->lcontent + 1);
746 if (pd->state == STATE_EPOCH || pd->state == STATE_PEPOCH)
747 pd->epoch = pd->levrspace;
748 else if (pd->state == STATE_VERSION || pd->state == STATE_PVERSION)
749 pd->version = pd->levrspace;
751 pd->release = pd->levrspace;
752 pd->levrspace += pd->lcontent + 1;
756 s->arch = str2id(pool, pd->content, 1);
761 pd->state = pd->sbtab[pd->state];
763 // printf("back from known %d %d %d\n", pd->state, pd->depth, pd->statedepth);
774 characterData(void *userData, const XML_Char *s, int len)
776 Parsedata *pd = (Parsedata *)userData;
780 // check if current nodes content is interesting
784 // adapt content buffer
785 l = pd->lcontent + len + 1;
786 if (l > pd->acontent)
788 pd->content = (char *)realloc(pd->content, l + 256);
789 pd->acontent = l + 256;
791 // append new content to buffer
792 c = pd->content + pd->lcontent;
799 /*-------------------------------------------------------------------*/
801 #define BUFF_SIZE 8192
804 * read 'helix' type xml from fp
805 * add packages to pool/repo
810 pool_addrepo_helix(Pool *pool, FILE *fp)
816 struct stateswitch *sw;
819 repo = pool_addrepo_empty(pool);
822 memset(&pd, 0, sizeof(pd));
823 for (i = 0, sw = stateswitches; sw->from != NUMSTATES; i++, sw++)
825 if (!pd.swtab[sw->from])
826 pd.swtab[sw->from] = sw;
827 pd.sbtab[sw->to] = sw->from;
833 pd.content = (char *)malloc(256); /* must hold all solvable kinds! */
837 pd.evrspace = (char *)malloc(256);
843 XML_Parser parser = XML_ParserCreate(NULL);
844 XML_SetUserData(parser, &pd); /* make parserdata available to XML callbacks */
845 XML_SetElementHandler(parser, startElement, endElement);
846 XML_SetCharacterDataHandler(parser, characterData);
848 // read/parse XML file
851 l = fread(buf, 1, sizeof(buf), fp);
852 if (XML_Parse(parser, buf, l, l == 0) == XML_STATUS_ERROR)
854 fprintf(stderr, "%s at line %u\n", XML_ErrorString(XML_GetErrorCode(parser)), (unsigned int)XML_GetCurrentLineNumber(parser));
860 XML_ParserFree(parser);
862 // adapt package count
863 pool->nsolvables += pd.pack;
864 repo->nsolvables = pd.pack;