Mercurial > octave-libtiff
view scripts/pkg/private/get_forge_pkg.m @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | 363fb10055df |
children |
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######################################################################## ## ## Copyright (C) 2005-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {[@var{ver}, @var{url}] =} get_forge_pkg (@var{name}) ## Try to discover the current version of an Octave Forge package from the web, ## using a working internet connection and the urlread function. ## If two output arguments are requested, also return an address from which ## to download the file. ## @end deftypefn function [ver, url] = get_forge_pkg (name) ## Verify that name is valid. if (! (ischar (name) && rows (name) == 1 && ndims (name) == 2)) error ("get_forge_pkg: package NAME must be a string"); elseif (! all (isalnum (name) | name == "-" | name == "." | name == "_")) error ("get_forge_pkg: invalid package NAME: %s", name); endif name = tolower (name); ## Try to download package's index page. [html, succ] = urlread (sprintf ("https://packages.octave.org/%s/index.html", ... name)); if (succ) ## Remove blanks for simpler matching. html(isspace (html)) = []; ## Good. Let's grep for the version. pat = "<tdclass=""package_table"">PackageVersion:</td><td>([\\d.]*)</td>"; t = regexp (html, pat, "tokens"); if (isempty (t) || isempty (t{1})) error ("get_forge_pkg: could not read version number from package's page"); else ver = t{1}{1}; if (nargout > 1) ## Build download string. pkg_file = sprintf ("%s-%s.tar.gz", name, ver); url = ["https://packages.octave.org/download/" pkg_file]; ## Verify that the package string exists on the page. if (isempty (strfind (html, pkg_file))) warning ("get_forge_pkg: download URL not verified"); endif endif endif else ## Try get the list of all packages. [html, succ] = urlread ("https://packages.octave.org/list_packages.php"); if (! succ) error ("get_forge_pkg: could not read URL, please verify internet connection"); endif t = strsplit (html); if (any (strcmp (t, name))) error ("get_forge_pkg: package NAME exists, but index page not available"); endif ## Try a simplistic method to determine similar names. function d = fdist (x) len1 = length (name); len2 = length (x); if (len1 <= len2) d = sum (abs (tolower (name(1:len1)) - tolower (x(1:len1)))) ... + (len2 - len1)*23; else d = sum (abs (tolower (name(1:len2)) - tolower (x(1:len2)))) ... + (len1 - len2)*23; endif endfunction dist = cellfun ("fdist", t); [~, i] = min (dist); error ("get_forge_pkg: package not found: ""%s"". Did you mean ""%s""?", ... name, t{i}); endif endfunction