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/*
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* test-line-buffer.c: code to exercise the svn importer's input helper
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*/
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#include "git-compat-util.h"
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#include "strbuf.h"
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#include "vcs-svn/line_buffer.h"
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static uint32_t strtouint32(const char *s)
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{
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char *end;
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uintmax_t n = strtoumax(s, &end, 10);
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if (*s == '\0' || *end != '\0')
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die("invalid count: %s", s);
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return (uint32_t) n;
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}
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static void handle_command(const char *command, const char *arg, struct line_buffer *buf)
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{
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switch (*command) {
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case 'b':
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if (!prefixcmp(command, "binary ")) {
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struct strbuf sb = STRBUF_INIT;
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strbuf_addch(&sb, '>');
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buffer_read_binary(buf, &sb, strtouint32(arg));
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fwrite(sb.buf, 1, sb.len, stdout);
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strbuf_release(&sb);
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return;
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}
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case 'c':
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if (!prefixcmp(command, "copy ")) {
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buffer_copy_bytes(buf, strtouint32(arg));
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case 's':
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if (!prefixcmp(command, "skip ")) {
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buffer_skip_bytes(buf, strtouint32(arg));
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return;
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}
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default:
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die("unrecognized command: %s", command);
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}
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}
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static void handle_line(const char *line, struct line_buffer *stdin_buf)
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{
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const char *arg = strchr(line, ' ');
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if (!arg)
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die("no argument in line: %s", line);
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handle_command(line, arg + 1, stdin_buf);
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}
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int main(int argc, char *argv[])
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{
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struct line_buffer stdin_buf = LINE_BUFFER_INIT;
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struct line_buffer file_buf = LINE_BUFFER_INIT;
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struct line_buffer *input = &stdin_buf;
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const char *filename;
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char *s;
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if (argc == 1)
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filename = NULL;
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else if (argc == 2)
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filename = argv[1];
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else
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usage("test-line-buffer [file | &fd] < script");
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if (buffer_init(&stdin_buf, NULL))
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die_errno("open error");
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if (filename) {
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if (*filename == '&') {
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if (buffer_fdinit(&file_buf, strtouint32(filename + 1)))
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die_errno("error opening fd %s", filename + 1);
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} else {
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if (buffer_init(&file_buf, filename))
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die_errno("error opening %s", filename);
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}
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input = &file_buf;
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}
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while ((s = buffer_read_line(&stdin_buf)))
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handle_line(s, input);
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if (filename && buffer_deinit(&file_buf))
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die("error reading from %s", filename);
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if (buffer_deinit(&stdin_buf))
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die("input error");
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if (ferror(stdout))
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die("output error");
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buffer_reset(&stdin_buf);
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return 0;
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}