[PATCH 3/4] vcs_info set-patch-format: Prepare for more code sharing between the callers.

[Daniel Shahaf <d.s@daniel.shahaf.name>]

This changes hook invocation order in the hg backend.
---
 Functions/VCS_Info/Backends/VCS_INFO_get_data_git | 3 ++-
 Functions/VCS_Info/Backends/VCS_INFO_get_data_hg  | 9 +++++----
 Functions/VCS_Info/VCS_INFO_quilt                 | 3 ++-
 Functions/VCS_Info/VCS_INFO_set-patch-format      | 3 +++
 4 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_git b/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
index 9a46c4e..84a91a7 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
@@ -126,7 +126,8 @@ VCS_INFO_git_handle_patches () {
 
     VCS_INFO_set-patch-format 'git_patches_applied' 'git_applied_s' \
                               'git_patches_unapplied' 'git_unapplied_s' \
-                              ":vcs_info:${vcs}:${usercontext}:${rrn}" gitmsg
+                              ":vcs_info:${vcs}:${usercontext}:${rrn}" gitmsg \
+                              ''
 
     if VCS_INFO_hook 'set-patch-format' "${gitmsg}"; then
         zformat -f gitmisc "${gitmsg}" "p:${hook_com[applied]}" "u:${hook_com[unapplied]}" \
diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
index 1b1ddcd..32ecb1c 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
@@ -200,17 +200,18 @@ if zstyle -T ":vcs_info:${vcs}:${usercontext}:${rrn}" get-mq \
         done < ${mqseriesfile}
     fi
 
-    VCS_INFO_set-patch-format 'mqpatches' 'applied_string' \
-                              'mqunapplied' 'unapplied_string' \
-                              ":vcs_info:${vcs}:${usercontext}:${rrn}" hgmqstring
     if VCS_INFO_hook 'gen-mqguards-string' "${mqguards[@]}"; then
         guards_string=${(j:,:)mqguards}
     else
         guards_string=${hook_com[guards-string]}
     fi
 
-    hook_com+=( guards "${guards_string}"   guards-n ${#mqguards} )
+    local -A extra_hook_com=( guards "${guards_string}"   guards-n ${#mqguards} )
 
+    VCS_INFO_set-patch-format 'mqpatches' 'applied_string' \
+                              'mqunapplied' 'unapplied_string' \
+                              ":vcs_info:${vcs}:${usercontext}:${rrn}" hgmqstring \
+                              extra_hook_com
     if VCS_INFO_hook 'set-patch-format' ${hgmqstring}; then
         zformat -f hgmqstring "${hgmqstring}" \
             "p:${hook_com[applied]}" "u:${hook_com[unapplied]}" \
diff --git a/Functions/VCS_Info/VCS_INFO_quilt b/Functions/VCS_Info/VCS_INFO_quilt
index d6b7c2f..1874c8b 100644
--- a/Functions/VCS_Info/VCS_INFO_quilt
+++ b/Functions/VCS_Info/VCS_INFO_quilt
@@ -173,7 +173,8 @@ function VCS_INFO_quilt() {
 
     VCS_INFO_set-patch-format 'applied' 'applied_string' \
                               'unapplied' 'unapplied_string' \
-                              ${context} qstring
+                              ${context} qstring \
+                              ''
     if VCS_INFO_hook 'set-patch-format' ${qstring}; then
         zformat -f qstring "${qstring}" "p:${hook_com[applied]}" "u:${hook_com[unapplied]}" \
                                         "n:${#applied}" "c:${#unapplied}" "a:${hook_com[all-n]}"
diff --git a/Functions/VCS_Info/VCS_INFO_set-patch-format b/Functions/VCS_Info/VCS_INFO_set-patch-format
index c061704..5534e48 100644
--- a/Functions/VCS_Info/VCS_INFO_set-patch-format
+++ b/Functions/VCS_Info/VCS_INFO_set-patch-format
@@ -8,6 +8,8 @@
 # $4 - name of a parameter to store the unapplied-string in
 # $5 - context argument for use in zstyle getters
 # $6 - name of a parameter to store a patch-format format string in
+# $7 - name of an assoc parameter with extra $hook_com key-value pairs for the
+#      set-patch-format hook invocation, or '' for none
 #
 # Output:
 # - $hook_com is overwritten and the keys 'applied', 'applied-n',
@@ -48,4 +50,5 @@
       unapplied "${(P)4}"
     )
     hook_com[all-n]=$(( ${hook_com[applied-n]} + ${hook_com[unapplied-n]} ))
+    hook_com+=( ${7:+"${(@kvP)7}"} )
 }