weechat: 2.6 -> 2.7

Disables support for Javascript and PHP:
- Javascript requires an old version of v8
- PHP requires a larger number of dependencies in addition to php-embed

Changelog [1]:

  New features
    - core: add option weechat.look.nick_color_hash_salt to shuffle nick colors (issue NixOS#635)
    - core: add different icons sizes (16x16 to 512x512) (issue NixOS#1347)
    - core: add file weechat.desktop
    - core: add reverse of string for screen in evaluation of expressions with "revscr:"
    - core: add length of string (number of chars and on screen) in evaluation of expressions with "length:xxx" and "lengthscr:xxx"
    - core: add calculation of expression in evaluation of expressions with "calc:xxx" (issue NixOS#997)
    - core: add optional default path (evaluated) in completion "filename"
    - core: add support of modifiers in evaluation of expressions with "modifier:name,data,string"
    - api: add modifier "color_encode_ansi" (issue NixOS#528)
    - api: add modifier "eval_path_home"
    - irc: add filters on raw buffer (issue NixOS#1000)
    - irc: add option irc.look.display_pv_warning_address to display a warning in private buffer if the remote nick address has changed (issue NixOS#892)
    - irc: add server option "ssl_password" (issue NixOS#115, issue NixOS#1416)
    - irc: add "user" in output of irc_message_parse (issue NixOS#136)
    - irc: add options irc.color.message_kick and irc.color.reason_kick (issue NixOS#683, issue NixOS#684)
    - logger: add option logger.file.color_lines (issue NixOS#528, issue NixOS#621)
    - script: add options "-ol" and "-il" in command "/script list" to send translated string with list of scripts loaded, display "No scripts loaded" if no scripts are loaded
    - xfer: add option xfer.file.download_temporary_suffix with default value ".part" (issue NixOS#1237)

  Bug fixes
    - core: set buffer name, short name and title only if the value has changed
    - core: fix scrolling up in bare mode when switched to bare mode at the top of the buffer (issue NixOS#899, issue NixOS#978)
    - core: optimize load of configuration files
    - core: fix window separators not respecting window splits (issue NixOS#630)
    - core: fix cursor mode info when prefix_align is none and with words split across lines (issue NixOS#610, issue NixOS#617, issue NixOS#619)
    - core: add support of reverse video in ANSI color codes
    - core: fixed segfault during excessive evaluation in function string_repeat (issue NixOS#1400)
    - buflist: fix extra spaces between buffers when conditions are used to hide buffers (regression introduced in version 2.6) (issue NixOS#1403)
    - irc: do not automatically open a channel with name "0" (issue NixOS#1429)
    - irc: remove option irc.network.channel_encode, add server option "charset_message" to control which part of the IRC message is decoded/encoded to the target charset (issue NixOS#832)
    - irc: use path from option xfer.file.upload_path to complete filename in command "/dcc send" (issue NixOS#60)
    - logger: fix write in log file if it has been deleted or renamed (issue NixOS#123)
    - python: send "bytes" instead of "str" to callbacks in Python 3 when the string is not UTF-8 valid (issue NixOS#1389)
    - relay: send message "_buffer_title_changed" to clients only when the title is changed
    - xfer: fix memory leak when a xfer is freed and when the plugin is unloaded

  Tests
    - unit: add tests on GUI color functions

  Build
    - core: fix build on Haiku (issue NixOS#1420)
    - core: fix build on Alpine
    - core: remove file FindTCL.cmake
    - core: display an error on missing dependency in CMake (issue NixOS#916, issue NixOS#956)
    - debian: disable Javascript plugin on Debian Sid and Ubuntu Eoan
    - debian: build with Guile 2.2
    - guile: add support of Guile 2.2, disable /guile eval (issue NixOS#1098)
    - python: add detection of Python 3.8

[1] https://weechat.org/files/changelog/ChangeLog-2.7.html

(cherry picked from commit d1cb8bf)

pkgs/applications/networking/irc/weechat/default.nix

@@ -27,12 +27,12 @@ let
   in
     assert lib.all (p: p.enabled -> ! (builtins.elem null p.buildInputs)) plugins;
     stdenv.mkDerivation rec {
-      version = "2.6";
+      version = "2.7";
       pname = "weechat";
 
       src = fetchurl {
         url = "https://weechat.org/files/src/weechat-${version}.tar.bz2";
-        sha256 = "1narazk28m7lmn1vqi7bhyvnr8apjrmaa4w1hbadn64hwr8ya1hb";
+        sha256 = "00hzchzw1w2181kczcrrnj8ngml3bwk7qciha3higxq3qynf0h8c";
       };
 
       outputs = [ "out" "man" ] ++ map (p: p.name) enabledPlugins;
@@ -41,6 +41,8 @@ let
       cmakeFlags = with stdenv.lib; [
         "-DENABLE_MAN=ON"
         "-DENABLE_DOC=ON"
+        "-DENABLE_JAVASCRIPT=OFF"  # Requires v8 <= 3.24.3, https://github.com/weechat/weechat/issues/360
+        "-DENABLE_PHP=OFF"
       ]
         ++ optionals stdenv.isDarwin ["-DICONV_LIBRARY=${libiconv}/lib/libiconv.dylib" "-DCMAKE_FIND_FRAMEWORK=LAST"]
         ++ map (p: "-D${p.cmakeFlag}=" + (if p.enabled then "ON" else "OFF")) plugins