Gigantic commit - dlight system rewritten

[xonotic/darkplaces.git] / buildnum / buildnum.c

diff --git a/buildnum/buildnum.c b/buildnum/buildnum.c
new file mode 100644 (file)
index 0000000..1fb390b
--- /dev/null
+++ b/buildnum/buildnum.c
@@ -0,0 +1,99 @@
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+// LordHavoc: wait for a key press so the window doesn't disappear immediately
+#if _DEBUG && WIN32
+#define ERROR fprintf(stderr, "press any key\n");getchar();return -1;
+#else
+#define ERROR return -1;
+#endif
+
+// version template:
+#define BUILDNUMBER 1
+
+int main(int argc, char **argv)
+{
+       FILE *file;
+       unsigned int insize, outsize, sizedifference, inbuildsize, outbuildsize, writtensize;
+       unsigned char *data, *in, *out, *buildstring, *endofbuildstring, outbuildstring[32];
+       int inbuildnumber, outbuildnumber, remainder;
+       if (argc != 2)
+       {
+               fprintf(stderr, "usage: buildnum <filename.c or .h>\npurpose: increments build number in version string for darkplaces engine");
+               ERROR
+       }
+
+       file = fopen(argv[1], "rb");
+       if (!file)
+       {
+               fprintf(stderr, "buildnum: unable to open file \"%s\" for reading\n", argv[1]);
+               ERROR
+       }
+
+       fseek(file, 0, SEEK_END);
+       insize = ftell(file);
+       data = calloc(1, insize+20);
+       fseek(file, 0, SEEK_SET);
+       if (fread(data, 1, insize, file) < insize)
+       {
+               fprintf(stderr, "buildnum: unable to read file \"%s\"\n", argv[1]);
+               ERROR
+       }
+       fclose(file);
+       buildstring = strstr(data, "#define BUILDNUMBER ");
+       if (!buildstring)
+       {
+               fprintf(stderr, "buildnum: unable to find \"#define BUILDNUMBER \"\n");
+               ERROR
+       }
+       buildstring += strlen("#define BUILDNUMBER ");
+       endofbuildstring = buildstring;
+       while (*endofbuildstring && *endofbuildstring != '\r' && *endofbuildstring != '\n')
+               endofbuildstring++;
+       inbuildnumber = atoi(buildstring);
+       outbuildnumber = inbuildnumber + 1;
+       printf("incrementing build number %d to %d\n", inbuildnumber, outbuildnumber);
+       sprintf(outbuildstring, "%d", outbuildnumber);
+       inbuildsize = endofbuildstring - buildstring;
+       outbuildsize = strlen(outbuildstring);
+       sizedifference = outbuildsize-inbuildsize;
+       remainder = (data + insize) - buildstring;
+       outsize = insize + sizedifference;
+       memmove(buildstring + sizedifference, buildstring, remainder);
+       in = outbuildstring;
+       out = buildstring;
+       while (*in)
+               *out++ = *in++;
+
+       file = fopen(argv[1], "wb");
+       if (!file)
+       {
+               fprintf(stderr, "buildnum: unable to open file \"%s\" for writing\n", argv[1]);
+               ERROR
+       }
+
+       writtensize = fwrite(data, 1, outsize, file);
+       fclose(file);
+       if (writtensize < outsize)
+       {
+               fprintf(stderr, "buildnum: error writing file \"%s\", emergency code trying to save to buildnum.dmp\n", argv[1]);
+               file = fopen("buildnum.dmp", "wb");
+               if (!file)
+               {
+                       fprintf(stderr, "buildnum: unable to open file for writing\n");
+                       ERROR
+               }
+
+               writtensize = fwrite(data, 1, outsize, file);
+               fclose(file);
+               if (writtensize < outsize)
+               {
+                       fprintf(stderr, "buildnum: error writing emergency dump file!\n");
+                       ERROR
+               }
+       }
+
+       return 0;
+}
\ No newline at end of file