From c9b8ad569d36e4a78d1ab1314c07a5b26aa7fcf1 Mon Sep 17 00:00:00 2001
From: Sorin Ionescu <sorin.ionescu@gmail.com>
Date: Wed, 4 Apr 2012 14:46:30 -0400
Subject: [PATCH] Convert add-zsh-trap into a module

---
 helper.zsh                          | 40 -----------------------
 modules/git/functions/git-info      |  3 ++
 modules/trap/functions/add-zsh-trap | 50 +++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+), 40 deletions(-)
 create mode 100644 modules/trap/functions/add-zsh-trap

diff --git a/helper.zsh b/helper.zsh
index 7714591f..f05eaa5b 100644
--- a/helper.zsh
+++ b/helper.zsh
@@ -64,43 +64,3 @@ function omodload {
   done
 }
 
-# Trap signals were generated with 'kill -l'.
-# DEBUG, EXIT, and ZERR are Zsh signals.
-TRAP_SIGNALS=(
-  ABRT ALRM BUS CHLD CONT EMT FPE HUP ILL INFO INT IO KILL PIPE PROF QUIT
-  SEGV STOP SYS TERM TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ
-  DEBUG EXIT ZERR
-)
-
-# Adds a function to a list to be called when a trap is triggered.
-function add-zsh-trap {
-  if (( $# < 2 )); then
-    print "usage: $0 type function" >&2
-    return 1
-  fi
-
-  if [[ -z "$TRAP_SIGNALS[(r)$1]" ]]; then
-    print "$0: unknown signal: $1" >&2
-    return 1
-  fi
-
-  local trap_functions="TRAP${1}_FUNCTIONS"
-  if (( ! ${(P)+trap_functions} )); then
-    typeset -gaU "$trap_functions"
-  fi
-  eval "$trap_functions+="$2""
-
-  if (( ! $+functions[TRAP${1}] )); then
-    eval "
-     function TRAP${1} {
-        for trap_function in \"\$TRAP${1}_FUNCTIONS[@]\"; do
-          if (( \$+functions[\$trap_function] )); then
-            \"\$trap_function\" \"\$1\"
-          fi
-        done
-        return \$(( 128 + \$1 ))
-     }
-    "
-  fi
-}
-
diff --git a/modules/git/functions/git-info b/modules/git/functions/git-info
index 86d55b19..d236155e 100644
--- a/modules/git/functions/git-info
+++ b/modules/git/functions/git-info
@@ -62,6 +62,9 @@
 #     zstyle ':omz:module:git:ignore' submodule ''
 #
 
+# Load dependencies.
+omodload 'trap'
+
 # Gets the path to the Git directory.
 function _git-dir {
   local git_dir="${$(git rev-parse --git-dir):A}"
diff --git a/modules/trap/functions/add-zsh-trap b/modules/trap/functions/add-zsh-trap
new file mode 100644
index 00000000..a147c689
--- /dev/null
+++ b/modules/trap/functions/add-zsh-trap
@@ -0,0 +1,50 @@
+#
+# Provides for the trapping of UNIX signals and the calling of multiple
+# registered functions when a trap is triggered.
+#
+# Authors:
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Trap signals were generated with 'kill -l'.
+# DEBUG, EXIT, and ZERR are Zsh signals.
+_trap_signals=(
+  ABRT ALRM BUS CHLD CONT EMT FPE HUP ILL INFO INT IO KILL PIPE PROF QUIT
+  SEGV STOP SYS TERM TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ
+  DEBUG EXIT ZERR
+)
+
+# Adds a function name to a list to be called when a trap is triggered.
+function add-zsh-trap {
+  if (( $# < 2 )); then
+    print "usage: $0 type function" >&2
+    return 1
+  fi
+
+  if [[ -z "$_trap_signals[(r)$1]" ]]; then
+    print "$0: unknown signal: $1" >&2
+    return 1
+  fi
+
+  local trap_functions="TRAP${1}_FUNCTIONS"
+  if (( ! ${(P)+trap_functions} )); then
+    typeset -gaU "$trap_functions"
+  fi
+  eval "$trap_functions+="$2""
+
+  if (( ! $+functions[TRAP${1}] )); then
+    eval "
+      function TRAP${1} {
+        for trap_function in \"\$TRAP${1}_FUNCTIONS[@]\"; do
+          if (( \$+functions[\$trap_function] )); then
+            \"\$trap_function\" \"\$1\"
+          fi
+        done
+        return \$(( 128 + \$1 ))
+      }
+    "
+  fi
+}
+
+add-zsh-trap "$@"
+