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Add option to read kube file status from symlink #204

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,7 @@ the following variables:
| `KUBE_PS1_CLUSTER_FUNCTION` | No default, must be user supplied | Function to customize how cluster is displayed |
| `KUBE_PS1_NAMESPACE_FUNCTION` | No default, must be user supplied | Function to customize how namespace is displayed |
| `KUBE_PS1_HIDE_IF_NOCONTEXT` | `false` | Hide the kube-ps1 prompt if no context is set |
| `KUBE_PS1_KUBECONFIG_SYMLINK` | `false` | Treat `KUBECONFIG` and `~/.kube/config` files as symbolic links |

To disable a feature, set it to an empty string:

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30 changes: 22 additions & 8 deletions kube-ps1.sh
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Expand Up @@ -35,6 +35,7 @@ KUBE_PS1_DIVIDER="${KUBE_PS1_DIVIDER-:}"
KUBE_PS1_SUFFIX="${KUBE_PS1_SUFFIX-)}"

KUBE_PS1_HIDE_IF_NOCONTEXT="${KUBE_PS1_HIDE_IF_NOCONTEXT:-false}"
KUBE_PS1_KUBECONFIG_SYMLINK="${KUBE_PS1_KUBECONFIG_SYMLINK:-false}"

_KUBE_PS1_KUBECONFIG_CACHE="${KUBECONFIG}"
_KUBE_PS1_DISABLE_PATH="${HOME}/.kube/kube-ps1/disabled"
Expand Down Expand Up @@ -212,15 +213,28 @@ _kube_ps1_file_newer_than() {
local file=$1
local check_time=$2

if [[ "$(_kube_ps1_shell_type)" == "zsh" ]]; then
# Use zstat '-F %s.%s' to make it compatible with low zsh version (eg: 5.0.2)
mtime=$(zstat +mtime -F %s.%s "${file}")
elif stat -c "%s" /dev/null &> /dev/null; then
# GNU stat
mtime=$(stat -L -c %Y "${file}")
if [[ "${KUBE_PS1_KUBECONFIG_SYMLINK}" == "true" ]]; then
if [[ "$(_kube_ps1_shell_type)" == "zsh" ]]; then
# Use zstat '-F %s.%s' to make it compatible with low zsh version (eg: 5.0.2)
mtime=$(zstat -L +mtime -F %s.%s "${file}")
elif stat -c "%s" /dev/null &> /dev/null; then
# GNU stat
mtime=$(stat -c %Y "${file}")
else
# BSD stat
mtime=$(stat -f %m "$file")
fi
else
# BSD stat
mtime=$(stat -L -f %m "$file")
if [[ "$(_kube_ps1_shell_type)" == "zsh" ]]; then
# Use zstat '-F %s.%s' to make it compatible with low zsh version (eg: 5.0.2)
mtime=$(zstat +mtime -F %s.%s "${file}")
elif stat -c "%s" /dev/null &> /dev/null; then
# GNU stat
mtime=$(stat -L -c %Y "${file}")
else
# BSD stat
mtime=$(stat -L -f %m "$file")
fi
fi

[[ "${mtime}" -gt "${check_time}" ]]
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