Make sure that the current directory is a Git repository

modules/git/functions/_git-hub-browse

@@ -8,6 +8,10 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  return 1
+fi
+
 local state expl remotes remote branches_or_tags branches tags files ret=1
 
 _arguments -C -s -S \

modules/git/functions/_git-info

@@ -8,6 +8,10 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  return 1
+fi
+
 _arguments "1:toggle:((
   on\:'enable in-prompt information for the current repository'
   off\:'disable in-prompt information for the current repository'

modules/git/functions/git-branch-current

@@ -5,7 +5,13 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! git rev-parse 2> /dev/null; then
+  print "$0: not a repository: $PWD" >&2
+  return 1
+fi
+
 local ref="$(git symbolic-ref HEAD 2> /dev/null)"
+
 if [[ -n "$ref" ]]; then
   print "${ref#refs/heads/}"
   return 0

modules/git/functions/git-commit-lost

@@ -5,6 +5,11 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+fi
+
 git fsck 2> /dev/null \
   | grep "^dangling commit" \
   | awk '{print $3}' \

modules/git/functions/git-dir

@@ -11,6 +11,7 @@ if [[ -n "$git_dir" ]]; then
   print "$git_dir"
   return 0
 else
+  print "$0: not a repository: $PWD" >&2
   return 1
 fi
 

modules/git/functions/git-hub-browse

@@ -5,6 +5,11 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+fi
+
 local remotes remote references reference file url
 
 remote="${1:-origin}"

modules/git/functions/git-root

@@ -11,6 +11,7 @@ if [[ -n "$root" ]]; then
   print "$root"
   return 0
 else
+  print "$0: not a repository work tree: $PWD" >&2
   return 1
 fi
 

modules/git/functions/git-stash-clear-interactive

@@ -5,6 +5,11 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+fi
+
 local stashed
 
 if [[ -f "$(git-dir)/refs/stash" ]]; then

modules/git/functions/git-stash-dropped

@@ -5,6 +5,11 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+fi
+
 git fsck --unreachable 2> /dev/null \
   | grep 'commit' \
   | awk '{print $3}' \

modules/git/functions/git-stash-recover

@@ -5,6 +5,11 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+fi
+
 local commit
 
 for commit in "$@"; do

modules/git/functions/git-submodule-move

@@ -5,15 +5,18 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
+  return 1
+elif [[ "$PWD" != "$(git-root)" ]]; then
+  print "$0: must be run from the root of the work tree" >&2
+  return 1
+fi
+
 local src="$1"
 local dst="$2"
 local url
 
-if [[ "$PWD" != "$(git-root)" ]]; then
-  print "$0: must be run from the root of the working tree" >&2
-  return 1
-fi
-
 url="$(git config --file "$(git-root)/.gitmodules" --get "submodule.${src}.url")"
 
 if [[ -z "$url" ]]; then

modules/git/functions/git-submodule-remove

@@ -5,12 +5,13 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
-if [[ "$PWD" != "$(git-root)" ]]; then
-  print "$0: must be run from the root of the working tree" >&2
+if ! is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
+  print "$0: not a repository work tree: $PWD" >&2
   return 1
-fi
-
-if ! git config --file .gitmodules --get "submodule.${1}.path" &>/dev/null; then
+elif [[ "$PWD" != "$(git-root)" ]]; then
+  print "$0: must be run from the root of the work tree" >&2
+  return 1
+elif ! git config --file .gitmodules --get "submodule.${1}.path" &>/dev/null; then
   print "$0: submodule not found: $1" >&2
   return 1
 fi