X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2F_infotojson%2Finfotojson.c;fp=tools%2F_infotojson%2Finfotojson.c;h=dd90dc2afaec3510c6ee1cfcd7fd3037b3f7b57c;hp=0000000000000000000000000000000000000000;hb=f51dd128c16fd6c654bdfbdcb19204bf9a867fe5;hpb=30d3e635ecef7961777a1aa98b1bde23712d6547;ds=sidebyside

diff --git a/tools/_infotojson/infotojson.c b/tools/_infotojson/infotojson.c
new file mode 100644
index 00000000..dd90dc2a
--- /dev/null
+++ b/tools/_infotojson/infotojson.c
@@ -0,0 +1,214 @@
+/* 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;
+}