[PATCH 1/3] vcs_info quilt: Pass the patches dir path to the gen-applied-string, gen-unapplied-string, and set-patch-format hooks

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

I use that in my gen-applied-string hook.
---
This answers my question from workers/49724.

 Doc/Zsh/contrib.yo                                | 12 ++++++++++++
 Functions/VCS_Info/Backends/VCS_INFO_get_data_git |  2 +-
 Functions/VCS_Info/Backends/VCS_INFO_get_data_hg  |  2 +-
 Functions/VCS_Info/VCS_INFO_quilt                 |  7 ++++++-
 Functions/VCS_Info/VCS_INFO_set-patch-format      |  8 +++++++-
 5 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/Doc/Zsh/contrib.yo b/Doc/Zsh/contrib.yo
index eb5bbafb2..2cda891ec 100644
--- a/Doc/Zsh/contrib.yo
+++ b/Doc/Zsh/contrib.yo
@@ -1669,6 +1669,10 @@ available as tt(%p) in the tt(patch-format) and tt(nopatch-format) styles.
 This hook is, in concert with tt(set-patch-format), responsible for
 tt(%)-escaping that value for use in the prompt.
 (See ifzman(the bf(Oddities) section)ifnzman(noderef(vcs_info Oddities)).)
+
+The tt(quilt) backend passes to this hook the inputs
+tt(${hook_com[quilt-patches-dir]}) and, if it has been
+determined, tt(${hook_com[quilt-pc-dir]}).
 )
 item(tt(gen-unapplied-string))(
 Called in the tt(git) (with tt(stgit) or during rebase), and tt(hg) (with
@@ -1687,6 +1691,10 @@ tt(patch-format) and tt(nopatch-format) styles.
 This hook is, in concert with tt(set-patch-format), responsible for
 tt(%)-escaping that value for use in the prompt.
 (See ifzman(the bf(Oddities) section)ifnzman(noderef(vcs_info Oddities)).)
+
+The tt(quilt) backend passes to this hook the inputs
+tt(${hook_com[quilt-patches-dir]}) and, if it has been
+determined, tt(${hook_com[quilt-pc-dir]}).
 )
 item(tt(gen-mqguards-string))(
 Called in the tt(hg) backend when tt(guards-string) is generated; the
@@ -1769,6 +1777,10 @@ This hook is, in concert with the tt(gen-applied-string) or
 tt(gen-unapplied-string) hooks if they are defined, responsible for
 tt(%)-escaping the final tt(patch-format) value for use in the prompt.
 (See ifzman(the bf(Oddities) section)ifnzman(noderef(vcs_info Oddities)).)
+
+The tt(quilt) backend passes to this hook the inputs
+tt(${hook_com[quilt-patches-dir]}) and, if it has been
+determined, tt(${hook_com[quilt-pc-dir]}).
 )
 item(tt(set-message))(
 Called each time before a `tt(vcs_info_msg_)var(N)tt(_)' message is set.
diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_git b/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
index fe084dffb..e45eebc8e 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_git
@@ -132,7 +132,7 @@ 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}:${rrn}" gitmsg \
-                              '' ''
+                              '' '' ''
     gitmisc=$REPLY
 }
 
diff --git a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
index b123e2270..0041a153c 100644
--- a/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
+++ b/Functions/VCS_Info/Backends/VCS_INFO_get_data_hg
@@ -225,7 +225,7 @@ if zstyle -T ":vcs_info:${vcs}:${usercontext}:${rrn}" get-mq \
     VCS_INFO_set-patch-format 'mqpatches' 'applied_string' \
                               'mqunapplied' 'unapplied_string' \
                               ":vcs_info:${vcs}:${usercontext}:${rrn}" hgmqstring \
-                              extra_hook_com VCS_INFO_hg_extra_zformats
+                              extra_hook_com VCS_INFO_hg_extra_zformats ''
     hgmqstring=$REPLY
 fi
 
diff --git a/Functions/VCS_Info/VCS_INFO_quilt b/Functions/VCS_Info/VCS_INFO_quilt
index ee242f552..ce5b41f24 100644
--- a/Functions/VCS_Info/VCS_INFO_quilt
+++ b/Functions/VCS_Info/VCS_INFO_quilt
@@ -179,10 +179,15 @@ function VCS_INFO_quilt-patch2subject() {
         done
     }
 
+    typeset -A quilt_extra_info=(
+        quilt-patches-dir ${patches}
+        ${pc:+"quilt-pc-dir"} $pc
+    )
+
     VCS_INFO_set-patch-format 'applied' 'applied_string' \
                               'unapplied' 'unapplied_string' \
                               ${context} qstring \
-                              '' ''
+                              quilt_extra_info '' quilt_extra_info
     qstring=$REPLY
 
     case ${mode} in
diff --git a/Functions/VCS_Info/VCS_INFO_set-patch-format b/Functions/VCS_Info/VCS_INFO_set-patch-format
index c35b695c3..1c774a7f6 100644
--- a/Functions/VCS_Info/VCS_INFO_set-patch-format
+++ b/Functions/VCS_Info/VCS_INFO_set-patch-format
@@ -15,6 +15,8 @@
 # $7 - name of an assoc parameter with extra $hook_com key-value pairs for the
 #      set-patch-format hook invocation, or '' for none
 # $8 - name of a function that sets $reply to extra arguments for the patch-format zformat call, or '' for none
+# $9 - name of an assoc parameter with extra $hook_com key-value pairs for the
+#      gen-applied-string & gen-unapplied-string hook invocations, or '' for none
 #
 # The expanded patch-format string is returned in $REPLY.
 #
@@ -22,8 +24,10 @@
 # - $hook_com is overwritten and the keys 'applied', 'applied-n',
 #   'unapplied', 'unapplied-n', 'all-n' are set.
 {
+    hook_com=()
+
     local applied_needs_escaping='unknown'
-    local unapplied_needs_escaping='unknown'
+    hook_com+=( ${9:+"${(@kvP)9}"} )
     if VCS_INFO_hook 'gen-applied-string' "${(@P)1}"; then
         if (( ${(P)#1} )); then
             REPLY=${(P)1[1]}
@@ -37,6 +41,8 @@
     : ${(P)2::=$REPLY}
     hook_com=()
 
+    local unapplied_needs_escaping='unknown'
+    hook_com+=( ${9:+"${(@kvP)9}"} )
     if VCS_INFO_hook 'gen-unapplied-string' "${(@P)3}"; then
         REPLY=${(P)#3}
         unapplied_needs_escaping='yes'