Added branch and tag support to the git repository viewer. (#1406)

Many thanks to Adam Soltys and everyone else who tested this patch.

* Updated git test repository so it has a branch with some differences from the master branch
* Moved redmine diff class into a module so as not to clash with diff-lcs gem which is required by grit
* Find changesets from all branches, not just master
* Got revision browsing working
* Got file actions working properly
* Allow browsing by short form of commit identifier
* Added a method to retrieve repository branches
* Allow browsing by branch names as well as commit numbers
* Handle the case where a git repository has no master branch
* Expand revision box and handle finding revisions by first 8 characters
* Added branches dropdown to repository show page
* Combined repository browse and show into a single action.  Moved branch/revision navigation into a partial.
* Renamed partial navigation -> breadcrumbs
* Made it so latest revisions list uses branch and path context
* Preserve current path when changing branch or revision
* Perform slightly more graceful error handling in the case of invalid repository URLs
* Allow branch names to contain periods
* Allow dashes in branch names
* Sort branches by name
* Adding tags dropdown
* Need to disable both branches and tags dropdowns before submitting revision form
* Support underscores in revision (branch/tag) names
* Making file history sensitive to current branch/tag/revision, adding common navigation to changes page
* Updated translation files to include labels for 'branch', 'tag', and 'view all revisions'
* Reenable fields after submit so they don't look disabled and don't stay disabled on browser back button
* Instead of dashes just use empty string for default dropdown value
* Individual entry views now sport the upgraded revision navigation
* Don't display dropdowns with no entries
* Consider all revisions when doing initial load
* Fixed bug grabbing changesets.  Thanks to Bernhard Furtmueller for catching.
* Always check the entire log to find new revisions, rather than trying to go forward from the latest known one
* Added some cleverness to avoid selecting the whole changesets table any time someone views the repository root
* File copies and renames being detected properly
* Return gracefully if no revisions are found in the git log
* Applied patch from Babar Le Lapin to improve Windows compatibility

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2840 e93f8b46-1217-0410-a6f0-8f06a7374b81

35 files changed, 105 insertions, 3 deletions

diff --git a/config/locales/bg.yml b/config/locales/bg.yml
index 87ed7c037..a683f875b 100644
--- a/config/locales/bg.yml
+++ b/config/locales/bg.yml
@@ -798,3 +798,6 @@ bg:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/bs.yml b/config/locales/bs.yml
index 2f8d94512..d78e61140 100644
--- a/config/locales/bs.yml
+++ b/config/locales/bs.yml
@@ -831,3 +831,6 @@ bs:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.

   permission_add_project: Create project

   setting_new_project_user_role_id: Role given to a non-admin user who creates a project

+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/ca.yml b/config/locales/ca.yml
index 499001dee..049f734bc 100644
--- a/config/locales/ca.yml
+++ b/config/locales/ca.yml
@@ -801,3 +801,6 @@ ca:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/cs.yml b/config/locales/cs.yml
index 7444da07a..4e1afa6f1 100644
--- a/config/locales/cs.yml
+++ b/config/locales/cs.yml
@@ -804,3 +804,6 @@ cs:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/da.yml b/config/locales/da.yml
index 99b47599c..f438805a8 100644
--- a/config/locales/da.yml
+++ b/config/locales/da.yml
@@ -831,3 +831,6 @@ da:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 6969d7a60..14dab4071 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -830,3 +830,6 @@ de:
   mail_body_wiki_content_updated: "Die Wiki-Seite '{{page}}' wurde von {{author}} aktualisiert."
   permission_add_project: Erstelle Projekt
   setting_new_project_user_role_id: Rolle einem Nicht-Administrator zugeordnet, welcher ein Projekt erstellt
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 459a34ef4..b907a56b4 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -543,6 +543,8 @@ en:
   label_browse: Browse
   label_modification: "{{count}} change"
   label_modification_plural: "{{count}} changes"
+  label_branch: Branch
+  label_tag: Tag 
   label_revision: Revision
   label_revision_plural: Revisions
   label_associated_revisions: Associated revisions
@@ -554,6 +556,7 @@ en:
   label_latest_revision: Latest revision
   label_latest_revision_plural: Latest revisions
   label_view_revisions: View revisions
+  label_view_all_revisions: View all revisions
   label_max_size: Maximum size
   label_sort_highest: Move to top
   label_sort_higher: Move up
diff --git a/config/locales/es.yml b/config/locales/es.yml
index f0689b86b..89e4aaf6b 100644
--- a/config/locales/es.yml
+++ b/config/locales/es.yml
@@ -851,3 +851,6 @@ es:
   mail_body_wiki_content_updated: La página wiki '{{page}}' ha sido actualizada por {{author}}.
   permission_add_project: Crear proyecto
   setting_new_project_user_role_id: Permiso asignado a un usuario no-administrador para crear proyectos
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/fi.yml b/config/locales/fi.yml
index 759af0643..2fa1c4ce7 100644
--- a/config/locales/fi.yml
+++ b/config/locales/fi.yml
@@ -841,3 +841,6 @@ fi:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 2e3ca60bb..9e691bb6e 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -832,4 +832,7 @@ fr:
   enumeration_doc_categories: Catégories des documents
   enumeration_activities: Activités (suivi du temps)
   label_greater_or_equal: ">="
-  label_less_or_equal: <=
+  label_less_or_equal: "<="
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/gl.yml b/config/locales/gl.yml
index 4cc93a5e7..7f44b8196 100644
--- a/config/locales/gl.yml
+++ b/config/locales/gl.yml
@@ -830,3 +830,6 @@ gl:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/he.yml b/config/locales/he.yml
index a1846f4de..94cf716cd 100644
--- a/config/locales/he.yml
+++ b/config/locales/he.yml
@@ -813,3 +813,6 @@ he:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/hu.yml b/config/locales/hu.yml
index 824694942..c204aaad3 100644
--- a/config/locales/hu.yml
+++ b/config/locales/hu.yml
@@ -836,3 +836,6 @@
   mail_body_wiki_content_updated: A '{{page}}' wiki oldalt {{author}} frissítette.
   permission_add_project: Projekt létrehozása
   setting_new_project_user_role_id: Projekt létrehozási jog nem adminisztrátor felhasználóknak
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/it.yml b/config/locales/it.yml
index 2a0016600..fa490e7c6 100644
--- a/config/locales/it.yml
+++ b/config/locales/it.yml
@@ -816,3 +816,6 @@ it:
   mail_body_wiki_content_updated: La pagina '{{page}}' wiki è stata aggiornata da{{author}}.
   permission_add_project: Crea progetto
   setting_new_project_user_role_id: Ruolo assegnato agli utenti non amministratori che creano un progetto
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/ja.yml b/config/locales/ja.yml
index e3f09379f..1d1c330b2 100644
--- a/config/locales/ja.yml
+++ b/config/locales/ja.yml
@@ -838,3 +838,6 @@ ja:
   enumeration_issue_priorities: チケットの優先度
   enumeration_doc_categories: 文書カテゴリ
   enumeration_activities: 作業分類 (時間トラッキング)
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/ko.yml b/config/locales/ko.yml
index 5dee19a4b..a69e6af6c 100644
--- a/config/locales/ko.yml
+++ b/config/locales/ko.yml
@@ -869,3 +869,6 @@ ko:
 # by Kihyun Yoon(ddumbugie@gmail.com)
 # by John Hwang (jhwang@tavon.org),http://github.com/tavon
   field_issue_to: Related issue
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/lt.yml b/config/locales/lt.yml
index 8565425af..49e59720e 100644
--- a/config/locales/lt.yml
+++ b/config/locales/lt.yml
@@ -841,3 +841,6 @@ lt:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/nl.yml b/config/locales/nl.yml
index e97a39130..df95addcc 100644
--- a/config/locales/nl.yml
+++ b/config/locales/nl.yml
@@ -786,3 +786,6 @@ nl:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/no.yml b/config/locales/no.yml
index a32d59a61..1e449573d 100644
--- a/config/locales/no.yml
+++ b/config/locales/no.yml
@@ -803,3 +803,6 @@
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/pl.yml b/config/locales/pl.yml
index 3f80f1590..016b55529 100644
--- a/config/locales/pl.yml
+++ b/config/locales/pl.yml
@@ -834,3 +834,6 @@ pl:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/pt-BR.yml b/config/locales/pt-BR.yml
index bc08ed16b..e308e4810 100644
--- a/config/locales/pt-BR.yml
+++ b/config/locales/pt-BR.yml
@@ -836,3 +836,6 @@ pt-BR:
   mail_body_wiki_content_updated: A página wiki '{{page}}' foi atualizada por {{author}}.
   permission_add_project: Criar projeto
   setting_new_project_user_role_id: Papel dado a um usuário não administrador que crie um projeto
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/pt.yml b/config/locales/pt.yml
index f10f89803..5bf3dbb0d 100644
--- a/config/locales/pt.yml
+++ b/config/locales/pt.yml
@@ -822,3 +822,6 @@ pt:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/ro.yml b/config/locales/ro.yml
index 0497b14e1..d9409b99d 100644
--- a/config/locales/ro.yml
+++ b/config/locales/ro.yml
@@ -801,3 +801,6 @@ ro:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/ru.yml b/config/locales/ru.yml
index 525c3c04f..08373c64b 100644
--- a/config/locales/ru.yml
+++ b/config/locales/ru.yml
@@ -928,3 +928,6 @@ ru:
   mail_body_wiki_content_updated: "{{author}} обновил(а) wiki-страницу '{{page}}'."
   permission_add_project: Создание проекта
   setting_new_project_user_role_id: Роль, назначаемая пользователю, создавшему проект
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/sk.yml b/config/locales/sk.yml
index a7b73b782..27a0a32ea 100644
--- a/config/locales/sk.yml
+++ b/config/locales/sk.yml
@@ -802,4 +802,7 @@ sk:
   label_wiki_content_updated: Wiki stránka aktualizovaná
   mail_body_wiki_content_updated: Wiki stránka '{{page}}' bola aktualizovaná užívateľom {{author}}.
   setting_repositories_encodings: Kódovanie repozitára
-  setting_new_project_user_role_id: Rola dána non-admin užívateľovi, ktorý vytvorí projekt   
\ No newline at end of file
+  setting_new_project_user_role_id: Rola dána non-admin užívateľovi, ktorý vytvorí projekt
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/sl.yml b/config/locales/sl.yml
index 7f01d35a1..6a1f4e273 100644
--- a/config/locales/sl.yml
+++ b/config/locales/sl.yml
@@ -800,3 +800,6 @@ sl:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/sr.yml b/config/locales/sr.yml
index 8edd6d79f..5e565a9ca 100644
--- a/config/locales/sr.yml
+++ b/config/locales/sr.yml
@@ -824,3 +824,6 @@
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/sv.yml b/config/locales/sv.yml
index 648c0d986..0e75a25e9 100644
--- a/config/locales/sv.yml
+++ b/config/locales/sv.yml
@@ -858,3 +858,6 @@ sv:
   enumeration_issue_priorities: Ärendeprioriteter
   enumeration_doc_categories: Dokumentkategorier
   enumeration_activities: Aktiviteter (tidsuppföljning)
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/th.yml b/config/locales/th.yml
index 046ca8131..3eb1a2584 100644
--- a/config/locales/th.yml
+++ b/config/locales/th.yml
@@ -801,3 +801,6 @@ th:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/tr.yml b/config/locales/tr.yml
index b830f90c5..d6822490d 100644
--- a/config/locales/tr.yml
+++ b/config/locales/tr.yml
@@ -837,3 +837,6 @@ tr:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/uk.yml b/config/locales/uk.yml
index 403b42cae..e95ce4048 100644
--- a/config/locales/uk.yml
+++ b/config/locales/uk.yml
@@ -800,3 +800,6 @@ uk:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/vi.yml b/config/locales/vi.yml
index dfe7a60f1..210532849 100644
--- a/config/locales/vi.yml
+++ b/config/locales/vi.yml
@@ -870,3 +870,6 @@ vi:
   mail_body_wiki_content_updated: The '{{page}}' wiki page has been updated by {{author}}.
   permission_add_project: Create project
   setting_new_project_user_role_id: Role given to a non-admin user who creates a project
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/zh-TW.yml b/config/locales/zh-TW.yml
index 2b757e587..85100f913 100644
--- a/config/locales/zh-TW.yml
+++ b/config/locales/zh-TW.yml
@@ -908,3 +908,6 @@
   enumeration_issue_priorities: 項目優先權
   enumeration_doc_categories: 文件分類
   enumeration_activities: 活動 (時間追蹤)
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index 31a19b3c6..a25ef9617 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -833,3 +833,6 @@ zh:
   enumeration_issue_priorities: 问题优先级
   enumeration_doc_categories: 文档类别
   enumeration_activities: 活动（时间跟踪）
+  label_view_all_revisions: View all revisions
+  label_tag: Tag
+  label_branch: Branch
diff --git a/config/routes.rb b/config/routes.rb
index bfacb1d3a..ded3435ba 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -218,7 +218,7 @@ ActionController::Routing::Routes.draw do |map|
       repository_views.connect 'projects/:id/repository/revisions/:rev', :action => 'revision'
       repository_views.connect 'projects/:id/repository/revisions/:rev/diff', :action => 'diff'
       repository_views.connect 'projects/:id/repository/revisions/:rev/diff.:format', :action => 'diff'
-      repository_views.connect 'projects/:id/repository/revisions/:rev/:action/*path'
+      repository_views.connect 'projects/:id/repository/revisions/:rev/:action/*path', :requirements => { :rev => /[a-z0-9\.\-_]+/ }
       repository_views.connect 'projects/:id/repository/:action/*path'
     end