PATCH: (2/2) Make the hg backend work with new versions of mercurial

[Frank Terbeck <ft@xxxxxxxxxxxxxxxxxxx>]

VCS_INFO_bydir_detect() now accepts every kind of file in
${vcs_comm[detect_need_file]} not just plain files.

The hg backend uses that by detecting via (paraphrased):
[[ -d .hg ]] && [[ -e .hg/store ]]
where .hg/store is a directory.

If .hg/branch is missing, the branch name defaults to 'default'.
---
 Functions/VCS_Info/Backends/VCS_INFO_detect_hg   |    2 +-
 Functions/VCS_Info/Backends/VCS_INFO_get_data_hg |   10 ++++++++--
 Functions/VCS_Info/VCS_INFO_bydir_detect         |    2 +-
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/Functions/VCS_Info/Backends/VCS_INFO_detect_hg b/Functions/VCS_Info/Backends/VCS_INFO_detect_hg
index 41fcc4b..36078b7 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_detect_hg
+++ b/Functions/VCS_Info/Backends/VCS_INFO_detect_hg
@@ -7,6 +7,6 @@ setopt localoptions NO_shwordsplit
 [[ $1 == '--flavours' ]] && return 1
 
 VCS_INFO_check_com ${vcs_comm[cmd]} || return 1
-vcs_comm[detect_need_file]=branch
+vcs_comm[detect_need_file]=store
 VCS_INFO_bydir_detect '.hg'
 return $?
diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
index f8e21a9..d83521b 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
@@ -3,11 +3,17 @@
 ## Distributed under the same BSD-ish license as zsh itself.
 
 setopt localoptions NO_shwordsplit
-local hgbranch hgbranch_name hgbase hghash hglrev r_branch r_info
+local file hgbranch hgbranch_name hgbase hghash hglrev r_branch r_info
 
 hgbase=${vcs_comm[basedir]}
 rrn=${hgbase:t}
-hgbranch_name=$(< ${hgbase}/.hg/branch)
+
+file="${hgbase}/.hg/branch"
+if [[ -r ${file} ]] ; then
+    hgbranch_name=$(< ${file})
+else
+    hgbranch_name="default"
+fi
 
 hghash=''
 hglrev=''
diff --git a/Functions/VCS_Info/VCS_INFO_bydir_detect b/Functions/VCS_Info/VCS_INFO_bydir_detect
index aff59f3..7985b69 100644
--- a/Functions/VCS_Info/VCS_INFO_bydir_detect
+++ b/Functions/VCS_Info/VCS_INFO_bydir_detect
@@ -10,7 +10,7 @@ realbasedir="$(VCS_INFO_realpath ${basedir})"
 while [[ ${realbasedir} != '/' ]]; do
     if [[ -n ${vcs_comm[detect_need_file]} ]] ; then
         [[ -d ${basedir}/${dirname} ]] && \
-        [[ -f ${basedir}/${dirname}/${vcs_comm[detect_need_file]} ]] && \
+        [[ -e ${basedir}/${dirname}/${vcs_comm[detect_need_file]} ]] && \
             break
     else
         [[ -d ${basedir}/${dirname} ]] && break
-- 
1.6.3.1.169.g33fd