Move projects' versions in a separated file.

This way, versions can be imported by external scripts (ie travis)

dependencies.py

@@ -31,7 +31,6 @@ from utils import Remotefile, pj, SkipCommand, copy_tree, add_execution_right
 
 class zlib(Dependency):
     name = 'zlib'
-    version = '1.2.8'
 
     class Source(ReleaseDownload):
         archive = Remotefile('zlib-1.2.8.tar.gz',
@@ -78,7 +77,6 @@ class zlib(Dependency):
 
 class lzma(Dependency):
     name = 'lzma'
-    version = '5.0.4'
 
     class Source(ReleaseDownload):
         archive = Remotefile('xz-5.0.4.tar.bz2',
@@ -91,7 +89,6 @@ class lzma(Dependency):
 
 class UUID(Dependency):
     name = 'uuid'
-    version = "1.43.4"
 
     class Source(ReleaseDownload):
         archive = Remotefile('e2fsprogs-libs-1.43.4.tar.gz',
@@ -110,7 +107,6 @@ class UUID(Dependency):
 
 class Xapian(Dependency):
     name = "xapian-core"
-    version = "1.4.5"
 
     class Source(ReleaseDownload):
         archive = Remotefile('xapian-core-1.4.5.tar.xz',
@@ -132,7 +128,6 @@ class Xapian(Dependency):
 
 class CTPP2(Dependency):
     name = "ctpp2"
-    version = "2.8.3"
 
     class Source(ReleaseDownload):
         name = "ctpp2"
@@ -175,7 +170,6 @@ class CTPP2C(CTPP2):
 
 class Pugixml(Dependency):
     name = "pugixml"
-    version = "1.2"
 
     class Source(ReleaseDownload):
         archive = Remotefile('pugixml-1.2.tar.gz',
@@ -187,7 +181,6 @@ class Pugixml(Dependency):
 
 class MicroHttpd(Dependency):
     name = "libmicrohttpd"
-    version = "0.9.46"
 
     class Source(ReleaseDownload):
         archive = Remotefile('libmicrohttpd-0.9.46.tar.gz',
@@ -200,7 +193,6 @@ class MicroHttpd(Dependency):
 
 class Gumbo(Dependency):
     name = "gumbo"
-    version = "0.10.1"
 
     class Source(ReleaseDownload):
         archive = Remotefile('gumbo-0.10.1.tar.gz',
@@ -217,7 +209,6 @@ class Gumbo(Dependency):
 
 class Icu(Dependency):
     name = "icu4c"
-    version = "58.2"
 
     class Source(SvnClone):
         name = "icu4c"
@@ -279,7 +270,6 @@ class Libzim(Dependency):
     class Source(GitClone):
         git_remote = "https://github.com/openzim/libzim.git"
         git_dir = "libzim"
-        release_git_ref = "3.0.0"
 
     Builder = MesonBuilder
 
@@ -291,7 +281,6 @@ class ZimTools(Dependency):
     class Source(GitClone):
         git_remote = "https://github.com/openzim/zim-tools.git"
         git_dir = "zim-tools"
-        release_git_ref = "0.0.1"
 
     class Builder(MesonBuilder):
         @property
@@ -343,7 +332,6 @@ class Kiwixlib(Dependency):
     class Source(GitClone):
         git_remote = "https://github.com/kiwix/kiwix-lib.git"
         git_dir = "kiwix-lib"
-        release_git_ref = "1.0.2"
 
     class Builder(MesonBuilder):
         @property
@@ -367,7 +355,6 @@ class KiwixTools(Dependency):
     class Source(GitClone):
         git_remote = "https://github.com/kiwix/kiwix-tools.git"
         git_dir = "kiwix-tools"
-        release_git_ref = "0.3.0"
 
     class Builder(MesonBuilder):
         @property
@@ -379,7 +366,6 @@ class KiwixTools(Dependency):
 
 class Gradle(Dependency):
     name = "Gradle"
-    version = "3.4"
 
     class Source(ReleaseDownload):
         archive = Remotefile('gradle-4.1-bin.zip',

dependency_utils.py

@@ -3,6 +3,7 @@ import os
 import shutil
 
 from utils import pj, Context, SkipCommand, extract_archive, Defaultdict, StopBuild
+from dependency_versions import main_project_versions, base_deps_versions
 
 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
 
@@ -20,7 +21,6 @@ class Dependency(metaclass=_MetaDependency):
     all_deps = {}
     dependencies = []
     force_native_build = False
-    version = None
 
     def __init__(self, buildEnv):
         self.buildEnv = buildEnv
@@ -28,6 +28,10 @@ class Dependency(metaclass=_MetaDependency):
         self.builder = self.Builder(self)
         self.skip = False
 
+    @property
+    def version(self):
+        return base_deps_versions.get(self.name, None)
+
     @property
     def full_name(self):
         if self.version:
@@ -124,7 +128,10 @@ class ReleaseDownload(Source):
 
 class GitClone(Source):
     base_git_ref = "master"
-    release_git_ref = "master"
+
+    @property
+    def release_git_ref(self):
+        return main_project_versions.get(self.name, "master")
 
     @property
     def source_dir(self):

dependency_versions.py

@@ -0,0 +1,21 @@
+
+main_project_versions = {
+    'kiwix-lib': '1.0.2',
+    'kiwix-tools': '0.3.0',
+    'libzim': '3.0.0',
+    'zim-tools': '0.0.1',
+    'zimwriterfs': '1.1',
+}
+
+base_deps_versions = {
+  'zlib' : '1.2.8',
+  'lzma' : '5.0.4',
+  'uuid' : '1.43.4',
+  'xapian-core' : '1.4.5',
+  'ctpp2' : '2.8.3',
+  'pugixml' : '1.2',
+  'libmicrohttpd' : '0.9.46',
+  'gumbo' : '0.10.1',
+  'icu4c' : '58.2',
+  'Gradle' : '3.4',
+}