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Sourcecode: aegis version File versions

get.c

/*
 *    aegis - project change supervisor
 *    Copyright (C) 1999-2002 Peter Miller;
 *    All rights reserved.
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate gets
 */

#include <change.h>
#include <change/file.h>
#include <change/lock_sync.h>
#include <error.h>      /* for assert */
#include <fstate.h>
#include <input/catenate.h>
#include <input/crlf.h>
#include <input/file.h>
#include <mem.h>
#include <os.h>
#include <os/isa/path_prefix.h>
#include <project.h>
#include <str_list.h>
#include <sub.h>
#include <symtab.h>
#include <trace.h>


static void
pconf_improve(change_ty *cp, pconf d, string_ty *filename)
{
    sub_context_ty  *scp;
    size_t          j;

    if (!d->build_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "build_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->development_build_command)
      d->development_build_command = str_copy(d->build_command);
    if (!(d->mask & pconf_create_symlinks_before_integration_build_mask))
    {
      d->create_symlinks_before_integration_build =
          d->create_symlinks_before_build;
      d->mask |= pconf_create_symlinks_before_integration_build_mask;
    }
    if (!(d->mask & pconf_remove_symlinks_after_integration_build_mask))
    {
      /*
       * Integration builds always remove the symlinks
       * again, even if they are kept around in the
       * development directories.  This stops them
       * becoming stale if there are deeper baseline
       * integrations.
       */
      d->remove_symlinks_after_integration_build = 1;
    }
    if (!d->history_create_command && d->history_put_command)
      d->history_create_command = str_copy(d->history_put_command);
    if (!d->history_create_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "history_create_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->history_get_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "history_get_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->history_put_command && d->history_create_command)
      d->history_put_command = str_copy(d->history_create_command);
    if (!d->history_put_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "history_put_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->history_query_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "history_query_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->diff_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "diff_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!d->diff3_command && !d->merge_command)
    {
      scp = sub_context_new();
      sub_var_set_string(scp, "File_Name", filename);
      sub_var_set_charstar(scp, "FieLD_Name", "merge_command");
      change_fatal
      (
          cp,
          scp,
          i18n("$filename: contains no \"$field_name\" field")
      );
      /* NOTREACHED */
      sub_context_delete(scp);
    }
    if (!(d->mask & pconf_shell_safe_filenames_mask))
    {
      d->shell_safe_filenames = 1;
      d->mask |= pconf_shell_safe_filenames_mask;
    }
    if (d->file_template)
    {
      for (j = 0; j < d->file_template->length; ++j)
      {
          pconf_file_template tp;

          tp = d->file_template->list[j];
          if (!tp->pattern || !tp->pattern->length)
          {
            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            sub_var_set_charstar(scp, "FieLD_Name",
                "file_template.pattern");
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: contains no \"$field_name\" field")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
          if (!tp->body && !tp->body_command)
          {
            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            sub_var_set_charstar(scp, "FieLD_Name", "file_template.body");
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: contains no \"$field_name\" field")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
          if (tp->body && tp->body_command)
          {
            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            sub_var_set_charstar(scp, "FieLD_Name", "file_template.body");
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: corrupted \"$field_name\" field")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
      }
    }
    if (d->project_specific)
    {
      for (j = 0; j < d->project_specific->length; ++j)
      {
          pconf_project_specific psp;

          psp = d->project_specific->list[j];
          if (!psp->name)
          {
            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            sub_var_set_charstar(scp, "FieLD_Name",
                "project_specific.name");
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: contains no \"$field_name\" field")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
          if (!psp->value)
          {
            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            sub_var_set_charstar(scp, "FieLD_Name",
                "project_specific.value");
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: contains no \"$field_name\" field")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
      }
    }

    if (d->change_file_command)
    {
      if (!d->change_file_undo_command)
          d->change_file_undo_command = str_copy(d->change_file_command);
      if (!d->new_file_command)
          d->new_file_command = str_copy(d->change_file_command);
      if (!d->new_test_command)
          d->new_test_command = str_copy(d->change_file_command);
      if (!d->copy_file_command)
          d->copy_file_command = str_copy(d->change_file_command);
      if (!d->remove_file_command)
          d->remove_file_command = str_copy(d->change_file_command);
    }
    if (d->change_file_undo_command)
    {
      if (!d->new_file_undo_command)
          d->new_file_undo_command = str_copy(d->change_file_undo_command);
      if (!d->new_test_undo_command)
          d->new_test_undo_command = str_copy(d->change_file_undo_command);
      if (!d->copy_file_undo_command)
          d->copy_file_undo_command = str_copy(d->change_file_undo_command);
      if (!d->remove_file_undo_command)
          d->remove_file_undo_command = str_copy(d->change_file_undo_command);
    }
}


static void
set_pconf_symlink_exceptions_defaults(pconf pconf_data)
{
    type_ty         *type_p;
    string_ty       **str_p;

    /*
     * make sure the list is there
     */
    if (!pconf_data->symlink_exceptions)
      pconf_data->symlink_exceptions =
          pconf_symlink_exceptions_list_type.alloc();

    /*
     * append the logfile to the list
     */
    str_p =
      pconf_symlink_exceptions_list_type.list_parse
      (
          pconf_data->symlink_exceptions,
          &type_p
      );
    assert(type_p == &string_type);
    *str_p = str_copy(change_logfile_basename());
}


static input_ty *
input_catenate_tricky(string_list_ty *filename)
{
    input_ty        **fpl;
    size_t          j;
    input_ty        *fp;

    assert(filename->nstrings >= 1);
    fpl = mem_alloc(filename->nstrings * sizeof(fpl[0]));
    for (j = 0; j < filename->nstrings; ++j)
    {
      fpl[j] = input_crlf(input_file_open(filename->string[j]), 1);
    }
    fp = input_catenate(fpl, filename->nstrings, 1);
    mem_free(fpl);
    return fp;
}


static pconf
read_the_pconf_list(change_ty *cp, string_ty *dirname)
{
    symtab_ty       *stp;
    string_ty       *s;
    project_ty      *pp;
    input_ty        *ifp;
    string_list_ty  filename;
    size_t          j;
    fstate_src      src;
    pconf           result;

    /*
     * If there is no config directory,
     * return a NULL pointer.
     */
    if (!dirname || !dirname->str_length)
      return 0;

    /*
     * Build the list of files.
     *
     * We use a symbol table so that we get O(n) behaviour.
     * (The string_list_append_list_unique is O(n**2), oops.)
     */
    stp = symtab_alloc(100);
    string_list_constructor(&filename);
    string_list_append(&filename, change_pconf_path_get(cp));
    for (j = 0;; ++j)
    {
      src = change_file_nth(cp, j);
      if (!src)
          break;
      if (src->about_to_be_created_by)
          continue;
      if (src->deleted_by)
          continue;
      if (src->about_to_be_copied_by)
          continue;
      if (!os_isa_path_prefix(dirname, src->file_name))
          continue;
      s = change_file_path(cp, src->file_name);
      assert(s);
      symtab_assign(stp, src->file_name, s);
      string_list_append(&filename, s);
    }
    for (pp = cp->pp; pp; pp = pp->parent)
    {
      change_ty      *cp2;

      cp2 = project_change_get(pp);
      for (j = 0;; ++j)
      {
          src = change_file_nth(cp2, j);
          if (!src)
            break;
          if (src->about_to_be_created_by)
            continue;
          if (src->deleted_by)
            continue;
          if (src->about_to_be_copied_by)
            continue;
          if (!os_isa_path_prefix(dirname, src->file_name))
            continue;
          if (symtab_query(stp, src->file_name))
            continue;
          s = change_file_path(cp2, src->file_name);
          assert(s);
          symtab_assign(stp, src->file_name, s);
          string_list_append(&filename, s);
      }
    }
    symtab_free(stp);

    /*
     * If there are no candidate files,
     * return a NULL pointer.
     */
    if (filename.nstrings <= 1)
    {
      string_list_destructor(&filename);
      return 0;
    }

    change_become(cp);
    ifp = input_catenate_tricky(&filename);
    result = parse_input(ifp, &pconf_type);
    /* as a side-effect, parse_input will delete fp */
    change_become_undo();

    return result;
}


pconf
change_pconf_get(change_ty *cp, int required)
{
    static string_ty *star_comma_d;
    size_t          j;

    trace(("change_pconf_get(cp = %8.8lX, required = %d)\n{\n",
      (long)cp, required));
    assert(cp->reference_count >= 1);
    change_lock_sync(cp);
    if (!cp->pconf_data)
    {
      string_ty       *filename;
      int         ok;

      filename = change_pconf_path_get(cp);
      assert(filename);
      change_become(cp);
      ok = os_exists(filename);
      change_become_undo();
      if (!ok)
      {
          if (required)
          {
            sub_context_ty *scp;

            scp = sub_context_new();
            sub_var_set_charstar(scp, "File_Name", THE_CONFIG_FILE);
            change_fatal
            (
                cp,
                scp,
                i18n("you must create a \"$filename\" file")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }
          cp->pconf_data = pconf_type.alloc();
          cp->pconf_data->shell_safe_filenames = 1;
      }
      else
      {
          change_become(cp);
          cp->pconf_data = pconf_read_file(filename);
          change_become_undo();
          if (cp->pconf_data->configuration_directory)
          {
            pconf           temp;

            temp =
                read_the_pconf_list
                (
                  cp,
                  cp->pconf_data->configuration_directory
                );
            if (temp)
            {
                pconf_type.free(cp->pconf_data);
                cp->pconf_data = temp;
            }
          }
          if (required)
            pconf_improve(cp, cp->pconf_data, filename);
      }

      /*
       * set the architecture default
       */
      if (!cp->pconf_data->architecture)
          cp->pconf_data->architecture = pconf_architecture_list_type.alloc();
      if (!cp->pconf_data->architecture->length)
      {
          type_ty         *type_p;
          pconf_architecture *app;
          pconf_architecture ap;

          app =
            pconf_architecture_list_type.list_parse
            (
                cp->pconf_data->architecture,
                &type_p
            );
          assert(type_p == &pconf_architecture_type);
          ap = pconf_architecture_type.alloc();
          *app = ap;
          ap->name = str_from_c("unspecified");
          ap->pattern = str_from_c("*");
      }
      for (j = 0; j < cp->pconf_data->architecture->length; ++j)
      {
          pconf_architecture ap;
          ap = cp->pconf_data->architecture->list[j];
          if (!ap->name && !ap->pattern)
          {
            sub_context_ty *scp;

            scp = sub_context_new();
            sub_var_set_string(scp, "File_Name", filename);
            change_fatal
            (
                cp,
                scp,
                i18n("$filename: arch needs name and pattern")
            );
            /* NOTREACHED */
            sub_context_delete(scp);
          }

          /*
           * Make sure the report generator can see it.
           */
          ap->mask |= pconf_architecture_mode_mask;
      }

      /*
       * set the maximum_filename_length default
       */
      if (cp->pconf_data->mask & pconf_maximum_filename_length_mask)
      {
          if (cp->pconf_data->maximum_filename_length < 9)
            cp->pconf_data->maximum_filename_length = 9;
          if (cp->pconf_data->maximum_filename_length > 255)
            cp->pconf_data->maximum_filename_length = 255;
      }
      else
          cp->pconf_data->maximum_filename_length = 255;

      /*
       * set the filename_pattern_accept default
       */
      if (!cp->pconf_data->filename_pattern_accept)
          cp->pconf_data->filename_pattern_accept =
            pconf_filename_pattern_accept_list_type.alloc();
      if (!cp->pconf_data->filename_pattern_accept->length)
      {
          type_ty         *type_p;
          string_ty       **addr_p;

          addr_p =
            pconf_filename_pattern_accept_list_type.list_parse
            (
                cp->pconf_data->filename_pattern_accept,
                &type_p
            );
          assert(type_p == &string_type);
          *addr_p = str_from_c("*");
      }
      if (!star_comma_d)
          star_comma_d = str_from_c("*,D");
      if (!cp->pconf_data->filename_pattern_reject)
          cp->pconf_data->filename_pattern_reject =
            pconf_filename_pattern_reject_list_type.alloc();
      for (j = 0; j < cp->pconf_data->filename_pattern_reject->length; ++j)
      {
          if
          (
            str_equal
            (
                star_comma_d,
                cp->pconf_data->filename_pattern_reject->list[j]
            )
          )
            break;
      }
      if (j >= cp->pconf_data->filename_pattern_reject->length)
      {
          type_ty         *type_p;
          string_ty       **addr_p;

          addr_p =
            pconf_filename_pattern_reject_list_type.list_parse
            (
                cp->pconf_data->filename_pattern_reject,
                &type_p
            );
          assert(type_p == &string_type);
          *addr_p = str_copy(star_comma_d);
      }

      /*
       * make sure symlink_exceptions is there, even if empty
       */
      set_pconf_symlink_exceptions_defaults(cp->pconf_data);

      /*
       * set the test_command default
       */
      if (!cp->pconf_data->test_command)
          cp->pconf_data->test_command = str_from_c("$shell $file_name");
      if (!cp->pconf_data->development_test_command)
          cp->pconf_data->development_test_command =
            str_copy(cp->pconf_data->test_command);

      /*
       * set the development directory template default
       */
      if (!cp->pconf_data->development_directory_template)
      {
          cp->pconf_data->development_directory_template =
            str_from_c
            (
"$ddd/${left $project ${expr ${namemax $ddd} - ${length .$magic${zpad $c 3}}}}\
.$magic${zpad $c 3}"
            );
      }

      /*
       * Set the test filename template
       */
      if (!cp->pconf_data->new_test_filename)
      {
          cp->pconf_data->new_test_filename =
            str_from_c
            (
              "test/${zpad $hundred 2}/t${zpad $number 4}${left $type 1}.sh"
            );
      }

      /*
       * Make sure the report generator can see the enums.
       */
      cp->pconf_data->mask |=
          pconf_history_put_trashes_file_mask |
          pconf_history_content_limitation_mask
          ;
    }
    trace(("return %08lX;\n", (long)cp->pconf_data));
    trace(("}\n"));
    return cp->pconf_data;
}

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