--- /dev/null
+/*
+ * repo_comps.c
+ *
+ * Parses RedHat comps format
+ *
+ * Copyright (c) 2012, Novell Inc.
+ *
+ * This program is licensed under the BSD license, read LICENSE.BSD
+ * for further information
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <dirent.h>
+#include <expat.h>
+
+#include "pool.h"
+#include "repo.h"
+#include "util.h"
+#define DISABLE_SPLIT
+#include "tools_util.h"
+#include "repo_comps.h"
+
+/*
+ * TODO:
+ *
+ * what's the difference between group/category?
+ * handle "default" and "langonly".
+ *
+ * maybe handle REL_COND in solver recommends handling?
+ */
+
+enum state {
+ STATE_START,
+ STATE_COMPS,
+ STATE_GROUP,
+ STATE_ID,
+ STATE_NAME,
+ STATE_DESCRIPTION,
+ STATE_DISPLAY_ORDER,
+ STATE_DEFAULT,
+ STATE_LANGONLY,
+ STATE_LANG_ONLY,
+ STATE_USERVISIBLE,
+ STATE_PACKAGELIST,
+ STATE_PACKAGEREQ,
+ STATE_CATEGORY,
+ STATE_CID,
+ STATE_CNAME,
+ STATE_CDESCRIPTION,
+ STATE_CDISPLAY_ORDER,
+ STATE_GROUPLIST,
+ STATE_GROUPID,
+ NUMSTATES
+};
+
+struct stateswitch {
+ enum state from;
+ char *ename;
+ enum state to;
+ int docontent;
+};
+
+/* must be sorted by first column */
+static struct stateswitch stateswitches[] = {
+ { STATE_START, "comps", STATE_COMPS, 0 },
+ { STATE_COMPS, "group", STATE_GROUP, 0 },
+ { STATE_COMPS, "category", STATE_CATEGORY, 0 },
+ { STATE_GROUP, "id", STATE_ID, 1 },
+ { STATE_GROUP, "name", STATE_NAME, 1 },
+ { STATE_GROUP, "description", STATE_DESCRIPTION, 1 },
+ { STATE_GROUP, "uservisible", STATE_USERVISIBLE, 1 },
+ { STATE_GROUP, "display_order", STATE_DISPLAY_ORDER, 1 },
+ { STATE_GROUP, "default", STATE_DEFAULT, 1 },
+ { STATE_GROUP, "langonly", STATE_LANGONLY, 1 },
+ { STATE_GROUP, "lang_only", STATE_LANG_ONLY, 1 },
+ { STATE_GROUP, "packagelist", STATE_PACKAGELIST, 0 },
+ { STATE_PACKAGELIST, "packagereq", STATE_PACKAGEREQ, 1 },
+ { STATE_CATEGORY, "id", STATE_CID, 1 },
+ { STATE_CATEGORY, "name", STATE_CNAME, 1 },
+ { STATE_CATEGORY, "description", STATE_CDESCRIPTION, 1 },
+ { STATE_CATEGORY , "grouplist", STATE_GROUPLIST, 0 },
+ { STATE_CATEGORY , "display_order", STATE_CDISPLAY_ORDER, 1 },
+ { STATE_GROUPLIST, "groupid", STATE_GROUPID, 1 },
+ { NUMSTATES }
+};
+
+struct parsedata {
+ const char *filename;
+ const char *basename;
+ int depth;
+ enum state state;
+ int statedepth;
+ char *content;
+ int lcontent;
+ int acontent;
+ int docontent;
+ Pool *pool;
+ Repo *repo;
+ Repodata *data;
+
+ struct stateswitch *swtab[NUMSTATES];
+ enum state sbtab[NUMSTATES];
+
+ const char *tmplang;
+ Id reqtype;
+ Id condreq;
+
+ Solvable *solvable;
+ Id handle;
+
+ Id langcache[ID_NUM_INTERNAL];
+};
+
+
+/*
+ * find_attr
+ * find value for xml attribute
+ * I: txt, name of attribute
+ * I: atts, list of key/value attributes
+ * I: dup, strdup it
+ * O: pointer to value of matching key, or NULL
+ *
+ */
+
+static inline const char *
+find_attr(const char *txt, const char **atts, int dup)
+{
+ for (; *atts; atts += 2)
+ {
+ if (!strcmp(*atts, txt))
+ return dup ? solv_strdup(atts[1]) : atts[1];
+ }
+ return 0;
+}
+
+
+/*
+ * create localized tag
+ */
+
+static Id
+langtag(struct parsedata *pd, Id tag, const char *language)
+{
+ if (language && !language[0])
+ language = 0;
+ if (!language || tag >= ID_NUM_INTERNAL || 1)
+ return pool_id2langid(pd->repo->pool, tag, language, 1);
+ if (!pd->langcache[tag])
+ pd->langcache[tag] = pool_id2langid(pd->repo->pool, tag, language, 1);
+ return pd->langcache[tag];
+}
+
+
+/*
+ * XML callback: startElement
+ */
+
+static void XMLCALL
+startElement(void *userData, const char *name, const char **atts)
+{
+ struct parsedata *pd = userData;
+ Pool *pool = pd->pool;
+ Solvable *s = pd->solvable;
+ struct stateswitch *sw;
+
+#if 0
+ fprintf(stderr, "start: [%d]%s\n", pd->state, name);
+#endif
+ if (pd->depth != pd->statedepth)
+ {
+ pd->depth++;
+ return;
+ }
+
+ pd->depth++;
+ if (!pd->swtab[pd->state]) /* no statetable -> no substates */
+ {
+#if 0
+ fprintf(stderr, "into unknown: %s (from: %d)\n", name, pd->state);
+#endif
+ return;
+ }
+ for (sw = pd->swtab[pd->state]; sw->from == pd->state; sw++) /* find name in statetable */
+ if (!strcmp(sw->ename, name))
+ break;
+
+ if (sw->from != pd->state)
+ {
+#if 0
+ fprintf(stderr, "into unknown: %s (from: %d)\n", name, pd->state);
+#endif
+ return;
+ }
+ pd->state = sw->to;
+ pd->docontent = sw->docontent;
+ pd->statedepth = pd->depth;
+ pd->lcontent = 0;
+ *pd->content = 0;
+
+ switch(pd->state)
+ {
+ case STATE_GROUP:
+ case STATE_CATEGORY:
+ s = pd->solvable = pool_id2solvable(pool, repo_add_solvable(pd->repo));
+ pd->handle = s - pool->solvables;
+ break;
+
+ case STATE_NAME:
+ case STATE_CNAME:
+ case STATE_DESCRIPTION:
+ case STATE_CDESCRIPTION:
+ pd->tmplang = find_attr("xml:lang", atts, 1);
+ break;
+
+ case STATE_PACKAGEREQ:
+ {
+ const char *type = find_attr("type", atts, 0);
+ pd->condreq = 0;
+ pd->reqtype = SOLVABLE_RECOMMENDS;
+ if (type && !strcmp(type, "conditional"))
+ {
+ const char *requires = find_attr("requires", atts, 0);
+ if (requires && *requires)
+ pd->condreq = pool_str2id(pool, requires, 1);
+ }
+ else if (type && !strcmp(type, "mandatory"))
+ pd->reqtype = SOLVABLE_REQUIRES;
+ else if (type && !strcmp(type, "optional"))
+ pd->reqtype = SOLVABLE_SUGGESTS;
+ break;
+ }
+
+ default:
+ break;
+ }
+}
+
+
+static void XMLCALL
+endElement(void *userData, const char *name)
+{
+ struct parsedata *pd = userData;
+ Solvable *s = pd->solvable;
+ Id id;
+
+#if 0
+ fprintf(stderr, "end: [%d]%s\n", pd->state, name);
+#endif
+ if (pd->depth != pd->statedepth)
+ {
+ pd->depth--;
+#if 0
+ fprintf(stderr, "back from unknown %d %d %d\n", pd->state, pd->depth, pd->statedepth);
+#endif
+ return;
+ }
+
+ pd->depth--;
+ pd->statedepth--;
+
+ switch (pd->state)
+ {
+ case STATE_GROUP:
+ case STATE_CATEGORY:
+ if (!s->arch)
+ s->arch = ARCH_NOARCH;
+ if (!s->evr)
+ s->evr = ID_EMPTY;
+ if (s->name && s->arch != ARCH_SRC && s->arch != ARCH_NOSRC)
+ s->provides = repo_addid_dep(pd->repo, s->provides, pool_rel2id(pd->pool, s->name, s->evr, REL_EQ, 1), 0);
+ pd->solvable = 0;
+ break;
+
+ case STATE_ID:
+ case STATE_CID:
+ s->name = pool_str2id(pd->pool, join2("pattern", ":", pd->content), 1);
+ break;
+
+ case STATE_NAME:
+ case STATE_CNAME:
+ repodata_set_str(pd->data, pd->handle, langtag(pd, SOLVABLE_SUMMARY, pd->tmplang), pd->content);
+ pd->tmplang = solv_free((void *)pd->tmplang);
+ break;
+
+ case STATE_DESCRIPTION:
+ case STATE_CDESCRIPTION:
+ repodata_set_str(pd->data, pd->handle, langtag(pd, SOLVABLE_DESCRIPTION, pd->tmplang), pd->content);
+ pd->tmplang = solv_free((void *)pd->tmplang);
+ break;
+
+ case STATE_PACKAGEREQ:
+ id = pool_str2id(pd->pool, pd->content, 1);
+ if (pd->condreq)
+ id = pool_rel2id(pd->pool, id, pd->condreq, REL_COND, 1);
+ repo_add_idarray(pd->repo, pd->handle, pd->reqtype, id);
+ break;
+
+ case STATE_GROUPID:
+ id = pool_str2id(pd->pool, join2("pattern", ":", pd->content), 1);
+ s->requires = repo_addid_dep(pd->repo, s->requires, id, 0);
+ break;
+
+ case STATE_USERVISIBLE:
+ repodata_set_void(pd->data, pd->handle, SOLVABLE_ISVISIBLE);
+ break;
+
+ case STATE_DISPLAY_ORDER:
+ case STATE_CDISPLAY_ORDER:
+ repodata_set_str(pd->data, pd->handle, SOLVABLE_ORDER, pd->content);
+ break;
+
+ case STATE_DEFAULT:
+ break;
+
+ case STATE_LANGONLY:
+ case STATE_LANG_ONLY:
+ break;
+
+ default:
+ break;
+ }
+
+ pd->state = pd->sbtab[pd->state];
+ pd->docontent = 0;
+
+#if 0
+ fprintf(stderr, "end: [%s] -> %d\n", name, pd->state);
+#endif
+}
+
+
+static void XMLCALL
+characterData(void *userData, const XML_Char *s, int len)
+{
+ struct parsedata *pd = userData;
+ int l;
+ char *c;
+ if (!pd->docontent)
+ return;
+ l = pd->lcontent + len + 1;
+ if (l > pd->acontent)
+ {
+ pd->content = solv_realloc(pd->content, l + 256);
+ pd->acontent = l + 256;
+ }
+ c = pd->content + pd->lcontent;
+ pd->lcontent += len;
+ while (len-- > 0)
+ *c++ = *s++;
+ *c = 0;
+}
+
+#define BUFF_SIZE 8192
+
+
+int
+repo_add_comps(Repo *repo, FILE *fp, int flags)
+{
+ Repodata *data;
+ struct parsedata pd;
+ char buf[BUFF_SIZE];
+ int i, l;
+ struct stateswitch *sw;
+ XML_Parser parser;
+
+ data = repo_add_repodata(repo, flags);
+
+ memset(&pd, 0, sizeof(pd));
+ pd.repo = repo;
+ pd.pool = repo->pool;
+ pd.data = data;
+
+ pd.content = solv_malloc(256);
+ pd.acontent = 256;
+
+ for (i = 0, sw = stateswitches; sw->from != NUMSTATES; i++, sw++)
+ {
+ if (!pd.swtab[sw->from])
+ pd.swtab[sw->from] = sw;
+ pd.sbtab[sw->to] = sw->from;
+ }
+
+ parser = XML_ParserCreate(NULL);
+ XML_SetUserData(parser, &pd);
+ XML_SetElementHandler(parser, startElement, endElement);
+ XML_SetCharacterDataHandler(parser, characterData);
+ for (;;)
+ {
+ l = fread(buf, 1, sizeof(buf), fp);
+ if (XML_Parse(parser, buf, l, l == 0) == XML_STATUS_ERROR)
+ {
+ pool_debug(pd.pool, SOLV_ERROR, "%s at line %u:%u\n", XML_ErrorString(XML_GetErrorCode(parser)), (unsigned int)XML_GetCurrentLineNumber(parser), (unsigned int)XML_GetCurrentColumnNumber(parser));
+ break;
+ }
+ if (l == 0)
+ break;
+ }
+ XML_ParserFree(parser);
+
+ solv_free((void *)pd.tmplang);
+ solv_free(pd.content);
+ join_freemem();
+
+ if (!(flags & REPO_NO_INTERNALIZE))
+ repodata_internalize(data);
+ return 0;
+}
+
+/* EOF */
projects / platform / upstream / libsolv.git / commitdiff