+/* This extract info from _info.c and create json file and also optionally store to db */
+#include "infotojson.h"
+
+/* Is A == B ? */
+#define streq(a,b) (strcmp((a),(b)) == 0)
+
+/* Does A start with B ? */
+#define strstarts(a,b) (strncmp((a),(b),strlen(b)) == 0)
+
+/* This version adds one byte (for nul term) */
+static void *grab_file(void *ctx, const char *filename)
+{
+ unsigned int max = 16384, size = 0;
+ int ret, fd;
+ char *buffer;
+
+ if (streq(filename, "-"))
+ fd = dup(STDIN_FILENO);
+ else
+ fd = open(filename, O_RDONLY, 0);
+
+ if (fd < 0)
+ return NULL;
+
+ buffer = talloc_array(ctx, char, max+1);
+ while ((ret = read(fd, buffer + size, max - size)) > 0) {
+ size += ret;
+ if (size == max)
+ buffer = talloc_realloc(ctx, buffer, char, max*=2 + 1);
+ }
+ if (ret < 0) {
+ talloc_free(buffer);
+ buffer = NULL;
+ } else
+ buffer[size] = '\0';
+ close(fd);
+ return buffer;
+}
+
+/* This is a dumb one which copies. We could mangle instead. */
+static char **split(const char *text)
+{
+ char **lines = NULL;
+ unsigned int max = 64, num = 0;
+
+ lines = talloc_array(text, char *, max+1);
+
+ while (*text != '\0') {
+ unsigned int len = strcspn(text, "\n");
+ lines[num] = talloc_array(lines, char, len + 1);
+ memcpy(lines[num], text, len);
+ lines[num][len] = '\0';
+ text += len + 1;
+ if (++num == max)
+ lines = talloc_realloc(text, lines, char *, max*=2 + 1);
+ }
+ lines[num] = NULL;
+ return lines;
+}
+
+/*combin desc into an array to write to db*/
+static char *combinedesc(char **desc)
+{
+ unsigned int i = 0, size = 0;;
+ char *combine;
+
+ for(i = 0; desc[i]; i++)
+ size += strlen(desc[i]);
+
+ combine = (char *)palloc((size + i)* sizeof(char));
+ strcpy(combine, desc[0]);
+
+ for(i = 1; desc[i]; i++) {
+ strcat(combine, "\n");
+ strcat(combine, desc[i]);
+ }
+ strreplace(combine,'\'',' ');
+ return combine;
+}
+
+/*creating json structure for storing to file/db*/
+struct json * createjson(char **infofile, char *author)
+{
+ struct json *jsonobj;
+ unsigned int modulename;
+
+ if(infofile == NULL || author == NULL) {
+ printf("Error Author or Info file is NULL\n");
+ exit(1);
+ }
+
+ jsonobj = (struct json *)palloc(sizeof(struct json));
+
+ jsonobj->author = author;
+
+ modulename = strchr(infofile[0], '-') - infofile[0];
+ jsonobj->module = (char *)palloc(sizeof(char) * (modulename - 1));
+ strncpy(jsonobj->module, infofile[0], modulename - 1);
+ jsonobj->module[modulename - 1] = '\0';
+
+ jsonobj->title = infofile[0];
+ jsonobj->desc = &infofile[1];
+
+ return jsonobj;
+}
+
+/*extracting title and description from _info.c files*/
+char **extractinfo(char **file)
+{
+ char **infofile = NULL;
+ unsigned int count = 0, j = 0, size = 0;
+ bool printing = false;
+
+ while(file[size++]);
+ infofile = (char **) palloc(size * sizeof(char *));
+
+ for (j = 0; j < size - 1; j++) {
+ if (streq(file[j], "/**")) {
+ printing = true;
+ }
+ else if (streq(file[j], " */"))
+ printing = false;
+ else if (printing) {
+ if (strstarts(file[j], " * "))
+ infofile[count++] = file[j] + 3;
+ else if (strstarts(file[j], " *"))
+ infofile[count++] = file[j] + 2;
+ else {
+ printf("Error in comments structure\n%d",j);
+ exit(1);
+ }
+ }
+ }
+ infofile[count] = NULL;
+ return infofile;
+}
+
+/*storing json structure to json file*/
+int storejsontofile(struct json *jsonobj, char *file)
+{
+ FILE *fp;
+ unsigned int j = 0;
+ fp = fopen(file, "wt");
+
+ fprintf(fp,"\"Module\":\"%s\",\n",jsonobj->module);
+ fprintf(fp,"\"Title\":\"%s\",\n",jsonobj->title);
+ fprintf(fp,"\"Author\":\"%s\",\n",jsonobj->author);
+ fprintf(fp,"\"Description\":[\n");
+ while(jsonobj->desc[j++])
+ fprintf(fp,"{\n\"str\":\"%s\"\n},\n",jsonobj->desc[j - 1]);
+ fprintf(fp,"]\n");
+ fclose(fp);
+ return 1;
+
+}
+
+/*storing json structure to db*/
+int storejsontodb(struct json *jsonobj, char *db)
+{
+ char *cmd, *query;
+ sqlite3 *handle;
+ char *errstr;
+ struct db_query *q;
+
+ handle = db_open(db);
+
+ query = aprintf("SELECT module from search where module=\"%s\";", jsonobj->module);
+ q = db_query(handle, query);
+ if (!q->num_rows)
+ cmd = aprintf("INSERT INTO search VALUES(\"%s\",\"%s\",\"%s\",'%s\');",
+ jsonobj->module, jsonobj->author, jsonobj->title, combinedesc(jsonobj->desc));
+ else
+ cmd = aprintf("UPDATE search set author=\"%s\", title=\"%s\", desc='%s\' where module=\"%s\";",
+ jsonobj->author, jsonobj->title, combinedesc(jsonobj->desc), jsonobj->module);
+
+ db_command(handle, cmd);
+ db_close(handle);
+ return 1;
+}
+
+int main(int argc, char *argv[])
+{
+ char *file;
+ char **lines;
+ char **infofile;
+
+ struct json *jsonobj = NULL;
+
+ if(argc < 4) {
+ printf("usage: infotojson infofile jsonfile author sqlitedb\n");
+ return 1;
+ }
+
+ file = grab_file(NULL, argv[1]);
+ if (!file)
+ err(1, "Reading file %s", argv[1]);
+
+ lines = split(file);
+
+ //extract info from lines
+ infofile = extractinfo(lines);
+
+ //create json obj
+ jsonobj = createjson(infofile, argv[3]);
+
+ //store to file
+ storejsontofile(jsonobj, argv[2]);
+
+ if(argv[4] != NULL)
+ storejsontodb(jsonobj, argv[4]);
+
+ talloc_free(file);
+ return 0;
+}
projects / ccan / commitdiff