Fossil

/*
** Reset the bisect subsystem.
*/
void bisect_reset(void){
  db_multi_exec(
    "DELETE FROM vvar WHERE name IN "
    " ('bisect-good', 'bisect-bad', 'bisect-log')"
    " ('bisect-good', 'bisect-bad', 'bisect-log', 'bisect-complete')"
  );
}

/*
** fossil bisect run [OPTIONS] COMMAND
**
** Invoke COMMAND (with arguments) repeatedly to perform the bisect.
** Options:
**
**    -i|--interactive          Prompt user for decisions rather than
**                              using the return code from COMMAND
*/
static void bisect_run(void){
  const char *zCmd;
  int isInteractive = 0;
  int i;
  if( g.argc<4 ){
    fossil_fatal("Usage: fossil bisect run [OPTIONS] COMMAND\n");
  }
  for(i=3; i<g.argc-1; i++){
    const char *zArg = g.argv[i];
    if( zArg[0]=='-' && zArg[1]=='-' && zArg[2]!=0 ) zArg++;
    if( strcmp(zArg, "-i")==0 || strcmp(zArg, "-interactive")==0 ){
      isInteractive = 1;
      continue;
    }
    fossil_fatal("unknown command-line option: \"%s\"\n", g.argv[i]);
  }
  zCmd = g.argv[i];
  if( db_int(0, "SELECT count(*) FROM vvar"
                " WHERE name IN ('bisect-good','bisect-bad')")!=2 ){
    fossil_fatal("need good/bad boundaries to use \"fossil bisect run\"");
  }
  while( db_lget_int("bisect-complete",0)==0 ){
    int rc;
    Blob cmd;
    blob_init(&cmd, 0, 0);
    blob_append_escaped_arg(&cmd, g.nameOfExe);
    rc = fossil_unsafe_system(zCmd);
    if( isInteractive ){
      Blob in;
      fossil_print("test-command result: %d\n", rc);
      while(1){
        int n;
        char *z;
        prompt_user("Enter (g)ood, (b)ad, (s)kip, (a)uto, (h)alt: ", &in);
        n = blob_size(&in);
        z = blob_str(&in);
        if( n<1 ) continue;
        if( sqlite3_strnicmp("good", z, n)==0 ){
          rc = 0;
          break;
        }
        if( sqlite3_strnicmp("bad", z, n)==0 ){
          rc = 1;
          break;
        }
        if( sqlite3_strnicmp("skip", z, n)==0 ){
          rc = 125;
          break;
        }
        if( sqlite3_strnicmp("auto", z, n)==0 ){
          isInteractive = 0;
          break;
        }
        if( sqlite3_strnicmp("halt", z, n)==0 ){
          return;
        }
        blob_reset(&in);
      }
    }
    if( rc==0 ){
      blob_append(&cmd, " bisect good", -1);
    }else if( rc==125 ){
      blob_append(&cmd, " bisect skip", -1);
    }else{
      blob_append(&cmd, " bisect bad", -1);
    }
    fossil_print("%s\n", blob_str(&cmd));
    fossil_system(blob_str(&cmd));
    blob_reset(&cmd);
  }
}

/*
** COMMAND: bisect
**
** Usage: %fossil bisect SUBCOMMAND ...
**
** Run various subcommands useful for searching back through the change

**       value of a bisect option.
**
** > fossil bisect reset
**
**       Reinitialize a bisect session.  This cancels prior bisect history
**       and allows a bisect session to start over from the beginning.
**
** > fossil bisect run [OPTIONS] COMMAND
**
**       Invoke COMMAND repeatedly to run the bisect.  The exit code for
**       COMMAND should be 0 for "good", 125 for "skip", and any other value
**       for "bad".  Options:
**
**          -i|--interactive    Prompt the user for the good/bad/skip decision
**                              after each step, rather than using the exit
**                              code from COMMAND
**
** > fossil bisect skip ?VERSION?
**
**       Cause VERSION (or the current checkout if VERSION is omitted) to
**       be ignored for the purpose of the current bisect.  This might
**       be done, for example, because VERSION does not compile correctly
**       or is otherwise unsuitable to participate in this bisect.
**

    PathNode *pMid;
    char *zDisplay = db_lget("bisect-display","chart");
    int m = (int)strlen(zDisplay);
    bisect_path();
    pMid = path_midpoint();
    if( pMid==0 ){
      fossil_print("bisect complete\n");
      db_lset_int("bisect-complete",1);
    }else{
      int nSpan = path_length_not_hidden();
      int nStep = path_search_depth();
      g.argv[1] = "update";
      g.argv[2] = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", pMid->rid);
      g.argc = 3;
      g.fNoSync = 1;

    }else if( strncmp(zDisplay, "status", m)==0 ){
      bisect_list(1);
    }
  }else if( strncmp(zCmd, "log", n)==0 ){
    bisect_chart(0);
  }else if( strncmp(zCmd, "chart", n)==0 ){
    bisect_chart(1);
  }else if( strncmp(zCmd, "run", n)==0 ){
    bisect_run();
  }else if( strncmp(zCmd, "options", n)==0 ){
    if( g.argc==3 ){
      unsigned int i;
      for(i=0; i<count(aBisectOption); i++){
        char *z = mprintf("bisect-%s", aBisectOption[i].zName);
        fossil_print("  %-15s  %-6s  ", aBisectOption[i].zName,
               db_lget(z, (char*)aBisectOption[i].zDefault));

         || strncmp(zCmd, "ls", n)==0
         || strncmp(zCmd, "status", n)==0
  ){
    int fAll = find_option("all", "a", 0)!=0;
    bisect_list(!fAll);
  }else if( !foundCmd ){
usage:
    usage("bad|good|log|chart|next|options|reset|skip|status|ui|undo");
    usage("bad|good|log|chart|next|options|reset|run|skip|status|ui|undo");
  }
}