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diff scripts/pkg/private/fix_depends.m @ 14466:cfb0173fe1ca

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maint: Refactor pkg.m and move subfunctions to private/ directory. * pkg.m: move all sub-functions to private/ * pkg/private/absolute_pathname.m * pkg/private/build.m * pkg/private/configure_make.m * pkg/private/copy_files.m * pkg/private/create_pkgadddel.m * pkg/private/describe.m * pkg/private/dirempty.m * pkg/private/extract_pkg.m * pkg/private/finish_installation.m * pkg/private/fix_depends.m * pkg/private/fix_version.m * pkg/private/generate_lookfor_cache.m * pkg/private/get_description.m * pkg/private/get_forge_download.m * pkg/private/get_forge_pkg.m * pkg/private/getarch.m * pkg/private/getarchdir.m * pkg/private/getarchprefix.m * pkg/private/get_unsatisfied_deps.m * pkg/private/install.m * pkg/private/installed_packages.m * pkg/private/is_architecture_dependent.m * pkg/private/isautoload.m * pkg/private/issuperuser.m * pkg/private/list_forge_packages.m * pkg/private/load_package_dirs.m * pkg/private/load_packages.m * pkg/private/load_packages_and_dependencies.m * pkg/private/packinfo_copy_file.m * pkg/private/parse_pkg_idx.m * pkg/private/prepare_installation.m * pkg/private/print_package_description.m * pkg/private/rebuild.m * pkg/private/repackage.m * pkg/private/rm_rf.m * pkg/private/rstrip.m * pkg/private/save_order.m * pkg/private/shell.m * pkg/private/split_by.m * pkg/private/strip.m * pkg/private/uninstall.m * pkg/private/unload_packages.m * pkg/private/verify_directory.m * pkg/private/write_index.m
author Carlo de Falco <kingcrimson@tiscali.it>
date Thu, 15 Mar 2012 19:41:24 +0100
parents
children ec7ab7e37731
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/pkg/private/fix_depends.m	Thu Mar 15 19:41:24 2012 +0100
@@ -0,0 +1,65 @@
+## Copyright (C) 2005-2012 S�ren Hauberg
+## Copyright (C) 2010 VZLU Prague, a.s.
+##
+## This file is part of Octave.
+##
+## Octave 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 3 of the License, or (at
+## your option) any later version.
+##
+## Octave 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 Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} {@var{deps_cell} =} fix_depends (@var{depends})
+## Undocumented internal function.
+## @end deftypefn
+
+## Make sure the depends field is of the right format.
+## This function returns a cell of structures with the following fields:
+##   package, version, operator
+function deps_cell = fix_depends (depends)
+  deps = split_by (tolower (depends), ",");
+  deps_cell = cell (1, length (deps));
+
+  ## For each dependency.
+  for i = 1:length (deps)
+    dep = deps{i};
+    lpar = find (dep == "(");
+    rpar = find (dep == ")");
+    ## Does the dependency specify a version
+    ## Example: package(>= version).
+    if (length (lpar) == 1 && length (rpar) == 1)
+      package = tolower (strip (dep(1:lpar-1)));
+      sub = dep(lpar(1)+1:rpar(1)-1);
+      parts = strsplit (sub, " ", true);
+      if (length (parts) != 2)
+        error ("incorrect syntax for dependency `%s' in the DESCRIPTION file\n",
+               dep);
+      endif
+      operator = parts{1};
+      if (! any (strcmp (operator, {">", ">=", "<=", "<", "=="})))
+        error ("unsupported operator: %s", operator);
+      endif
+      version  = fix_version (parts{2});
+
+  ## If no version is specified for the dependency
+  ## we say that the version should be greater than
+  ## or equal to "0.0.0".
+  else
+    package = tolower (strip (dep));
+    operator = ">=";
+    version  = "0.0.0";
+  endif
+  deps_cell{i} = struct ("package", package, "operator", operator,
+                         "version", version);
+  endfor
+endfunction
+