From abe0ee3936c7f4a291666af3a9d70ed2a6d710f4 Mon Sep 17 00:00:00 2001
From: Frank Terbeck <bewater@users.sourceforge.net>
Date: Wed, 30 Mar 2011 21:17:07 +0000
Subject: 28960: Add functions to add/remove static hooks.

---
 Functions/VCS_Info/.distfiles       |  2 ++
 Functions/VCS_Info/vcs_info         |  2 ++
 Functions/VCS_Info/vcs_info_hookadd | 22 ++++++++++++++++++
 Functions/VCS_Info/vcs_info_hookdel | 45 +++++++++++++++++++++++++++++++++++++
 4 files changed, 71 insertions(+)
 create mode 100644 Functions/VCS_Info/vcs_info_hookadd
 create mode 100644 Functions/VCS_Info/vcs_info_hookdel

(limited to 'Functions')

diff --git a/Functions/VCS_Info/.distfiles b/Functions/VCS_Info/.distfiles
index 988e7ada4..b6e55d2fc 100644
--- a/Functions/VCS_Info/.distfiles
+++ b/Functions/VCS_Info/.distfiles
@@ -1,6 +1,8 @@
 DISTFILES_SRC='
 .distfiles
 vcs_info
+vcs_info_hookadd
+vcs_info_hookdel
 VCS_INFO_adjust
 VCS_INFO_bydir_detect
 VCS_INFO_check_com
diff --git a/Functions/VCS_Info/vcs_info b/Functions/VCS_Info/vcs_info
index 6ce1cd702..385a451da 100644
--- a/Functions/VCS_Info/vcs_info
+++ b/Functions/VCS_Info/vcs_info
@@ -26,6 +26,8 @@ static_functions=(
     VCS_INFO_reposub
     VCS_INFO_set
 
+    vcs_info_hookadd
+    vcs_info_hookdel
     vcs_info_lastmsg
     vcs_info_printsys
     vcs_info_setsys
diff --git a/Functions/VCS_Info/vcs_info_hookadd b/Functions/VCS_Info/vcs_info_hookadd
new file mode 100644
index 000000000..867f7e271
--- /dev/null
+++ b/Functions/VCS_Info/vcs_info_hookadd
@@ -0,0 +1,22 @@
+## vim:ft=zsh
+## Written by Frank Terbeck <ft@bewatermyfriend.org>
+## Distributed under the same BSD-ish license as zsh itself.
+
+emulate -L zsh
+setopt extendedglob
+
+if (( ${#argv} < 2 )); then
+    print 'usage: vcs_info_hookadd <HOOK> <FUNCTION(s)...>'
+    return 1
+fi
+
+local hook func context
+local -a old
+
+hook=$1
+shift
+context=":vcs_info-static_hooks:${hook}"
+
+zstyle -a "${context}" hooks old
+zstyle "${context}" hooks "${old[@]}" "$@"
+return $?
diff --git a/Functions/VCS_Info/vcs_info_hookdel b/Functions/VCS_Info/vcs_info_hookdel
new file mode 100644
index 000000000..e09a0575e
--- /dev/null
+++ b/Functions/VCS_Info/vcs_info_hookdel
@@ -0,0 +1,45 @@
+## vim:ft=zsh
+## Written by Frank Terbeck <ft@bewatermyfriend.org>
+## Distributed under the same BSD-ish license as zsh itself.
+
+emulate -L zsh
+setopt extendedglob
+
+local -i all
+
+if [[ "x$1" == 'x-a' ]]; then
+    all=1
+    shift
+else
+    all=0
+fi
+
+if (( ${#argv} < 2 )); then
+    print 'usage: vcs_info_hookdel [-a] <HOOK> <FUNCTION(s)...>'
+    return 1
+fi
+
+local hook func context
+local -a old
+
+hook=$1
+shift
+context=":vcs_info-static_hooks:${hook}"
+
+zstyle -a "${context}" hooks old || return 0
+for func in "$@"; do
+    if [[ -n ${(M)old:#$func} ]]; then
+        old[(Re)$func]=()
+    else
+        printf 'Not statically registered to `%s'\'': "%s"\n' \
+            "${hook}" "${func}"
+        continue
+    fi
+    if (( all )); then
+        while [[ -n ${(M)old:#$func} ]]; do
+            old[(Re)$func]=()
+        done
+    fi
+done
+zstyle "${context}" hooks "${old[@]}"
+return $?
-- 
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