Author: egorochkin
Date: Sun Jan  2 23:23:59 2011
New Revision: 25351
URL: https://svn.nixos.org/websvn/nix/?rev=25351&sc=1

Log:
Live builds support: initially for git and svn. taglib_live is packaged as an 
example.

Added:
   nixpkgs/trunk/pkgs/build-support/fetchgitrevision/
   nixpkgs/trunk/pkgs/build-support/fetchgitrevision/default.nix
   nixpkgs/trunk/pkgs/build-support/fetchsvnrevision/
   nixpkgs/trunk/pkgs/build-support/fetchsvnrevision/default.nix
   nixpkgs/trunk/pkgs/development/libraries/taglib/live.nix
      - copied, changed from r25348, 
nixpkgs/trunk/pkgs/development/libraries/taglib/1.7.nix
Deleted:
   nixpkgs/trunk/pkgs/development/libraries/taglib/1.7.nix
Modified:
   nixpkgs/trunk/pkgs/top-level/all-packages.nix

Added: nixpkgs/trunk/pkgs/build-support/fetchgitrevision/default.nix
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ nixpkgs/trunk/pkgs/build-support/fetchgitrevision/default.nix       Sun Jan 
 2 23:23:59 2011        (r25351)
@@ -0,0 +1,10 @@
+runCommand: git: repository: branch:
+  import (runCommand "head-revision"
+    { buildInputs = [ git ];
+      dummy = builtins.currentTime;
+    }
+    ''
+      rev=$(git ls-remote ${repository} | grep "refs/${branch}$" | awk '{ 
print $1 }')
+      echo "[ \"$rev\" ]" > $out
+      echo Latest revision in ${branch} is $rev
+    '');

Added: nixpkgs/trunk/pkgs/build-support/fetchsvnrevision/default.nix
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ nixpkgs/trunk/pkgs/build-support/fetchsvnrevision/default.nix       Sun Jan 
 2 23:23:59 2011        (r25351)
@@ -0,0 +1,10 @@
+runCommand: subversion: repository:
+  import (runCommand "head-revision"
+    { buildInputs = [ subversion ];
+      dummy = builtins.currentTime;
+    }
+    ''
+      rev=$(echo p | svn ls -v --depth empty  ${repository} |awk '{ print $1 
}')
+      echo "[ \"$rev\" ]" > $out
+      echo Latest revision is $rev
+    '')
\ No newline at end of file

Copied and modified: nixpkgs/trunk/pkgs/development/libraries/taglib/live.nix 
(from r25348, nixpkgs/trunk/pkgs/development/libraries/taglib/1.7.nix)
==============================================================================
--- nixpkgs/trunk/pkgs/development/libraries/taglib/1.7.nix     Sun Jan  2 
20:09:25 2011        (r25348, copy source)
+++ nixpkgs/trunk/pkgs/development/libraries/taglib/live.nix    Sun Jan  2 
23:23:59 2011        (r25351)
@@ -1,13 +1,17 @@
-{stdenv, fetchsvn, zlib, cmake}:
+{stdenv, fetchsvn, fetchsvnrevision, zlib, cmake
+, repository ? "svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib"
+, rev ? fetchsvnrevision repository
+, src ? fetchsvn {
+    url = repository;
+    rev = rev;
+  }
+}:
 
 stdenv.mkDerivation {
-  name = "taglib-1.7a";
-  
-  src = fetchsvn {
-    url = svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib;
-    rev = 1145554;
-  };
-  
+  name = "taglib-live";
+
+  inherit src;
+
   cmakeFlags = [ "-DWITH-ASF=ON" "-DWITH-MP4=ON" ];
 
   buildInputs = [ zlib cmake ];

Modified: nixpkgs/trunk/pkgs/top-level/all-packages.nix
==============================================================================
--- nixpkgs/trunk/pkgs/top-level/all-packages.nix       Sun Jan  2 22:35:02 
2011        (r25350)
+++ nixpkgs/trunk/pkgs/top-level/all-packages.nix       Sun Jan  2 23:23:59 
2011        (r25351)
@@ -263,6 +263,8 @@
     inherit stdenv git;
   };
 
+  fetchgitrevision = import ../build-support/fetchgitrevision runCommand git;
+
   fetchmtn = import ../build-support/fetchmtn {
     inherit monotone stdenv;
     cacheDB = getConfig ["fetchmtn" "cacheDB"] "";
@@ -273,6 +275,8 @@
     inherit stdenv subversion openssh;
     sshSupport = true;
   };
+  
+  fetchsvnrevision = import ../build-support/fetchsvnrevision runCommand 
subversion;
 
   fetchsvnssh = import ../build-support/fetchsvnssh {
     inherit stdenv subversion openssh expect;
@@ -4036,7 +4040,7 @@
 
   taglib = callPackage ../development/libraries/taglib { };
 
-  taglib17 = callPackage ../development/libraries/taglib/1.7.nix { };
+  taglib_live = callPackage ../development/libraries/taglib/live.nix { };
 
   taglib_extras = callPackage ../development/libraries/taglib-extras { };
 
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