/*
* test-line-buffer.c: code to exercise the svn importer's input helper
- *
- * Input format:
- * number NL
- * (number bytes) NL
- * number NL
- * ...
*/
#include "git-compat-util.h"
+#include "strbuf.h"
#include "vcs-svn/line_buffer.h"
static uint32_t strtouint32(const char *s)
return (uint32_t) n;
}
+static void handle_command(const char *command, const char *arg, struct line_buffer *buf)
+{
+ switch (*command) {
+ case 'b':
+ if (!prefixcmp(command, "binary ")) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addch(&sb, '>');
+ buffer_read_binary(buf, &sb, strtouint32(arg));
+ fwrite(sb.buf, 1, sb.len, stdout);
+ strbuf_release(&sb);
+ return;
+ }
+ case 'c':
+ if (!prefixcmp(command, "copy ")) {
+ buffer_copy_bytes(buf, strtouint32(arg));
+ return;
+ }
+ case 's':
+ if (!prefixcmp(command, "skip ")) {
+ buffer_skip_bytes(buf, strtouint32(arg));
+ return;
+ }
+ default:
+ die("unrecognized command: %s", command);
+ }
+}
+
+static void handle_line(const char *line, struct line_buffer *stdin_buf)
+{
+ const char *arg = strchr(line, ' ');
+ if (!arg)
+ die("no argument in line: %s", line);
+ handle_command(line, arg + 1, stdin_buf);
+}
+
int main(int argc, char *argv[])
{
+ struct line_buffer stdin_buf = LINE_BUFFER_INIT;
+ struct line_buffer file_buf = LINE_BUFFER_INIT;
+ struct line_buffer *input = &stdin_buf;
+ const char *filename;
char *s;
- if (argc != 1)
- usage("test-line-buffer < input.txt");
- if (buffer_init(NULL))
+ if (argc == 1)
+ filename = NULL;
+ else if (argc == 2)
+ filename = argv[1];
+ else
+ usage("test-line-buffer [file | &fd] < script");
+
+ if (buffer_init(&stdin_buf, NULL))
die_errno("open error");
- while ((s = buffer_read_line())) {
- s = buffer_read_string(strtouint32(s));
- fputs(s, stdout);
- fputc('\n', stdout);
- buffer_skip_bytes(1);
- if (!(s = buffer_read_line()))
- break;
- buffer_copy_bytes(strtouint32(s) + 1);
+ if (filename) {
+ if (*filename == '&') {
+ if (buffer_fdinit(&file_buf, strtouint32(filename + 1)))
+ die_errno("error opening fd %s", filename + 1);
+ } else {
+ if (buffer_init(&file_buf, filename))
+ die_errno("error opening %s", filename);
+ }
+ input = &file_buf;
}
- if (buffer_deinit())
+
+ while ((s = buffer_read_line(&stdin_buf)))
+ handle_line(s, input);
+
+ if (filename && buffer_deinit(&file_buf))
+ die("error reading from %s", filename);
+ if (buffer_deinit(&stdin_buf))
die("input error");
if (ferror(stdout))
die("output error");
- buffer_reset();
+ buffer_reset(&stdin_buf);
return 0;
}