From 86d55197cb2818382747d6facf197f14a28a2d01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hannes=20K=C3=B6rber?= <hannes@hkoerber.de>
Date: Sat, 2 Jul 2022 12:05:12 +0200
Subject: [PATCH] Add semver shell helpers

---
 zsh/zshrc.d/40_functions.sh | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/zsh/zshrc.d/40_functions.sh b/zsh/zshrc.d/40_functions.sh
index ac552d9..f6fcc90 100644
--- a/zsh/zshrc.d/40_functions.sh
+++ b/zsh/zshrc.d/40_functions.sh
@@ -214,3 +214,33 @@ kubectl_pod() {
 kubectl_deployment() {
     kubectl-env mycloud get -n "${1}" deployment --selector=${2} -o jsonpath='{.items[*].metadata.name}'
 }
+
+# The semver_ checks are inspired by
+# https://stackoverflow.com/questions/4023830/how-to-compare-two-strings-in-dot-separated-version-format-in-bash
+semver_lte() {
+    v1="${1}"
+    v2="${2}"
+
+    printf '%s\n%s' "${v1}" "${v2}" | sort --version-sort --check=silent
+}
+
+semver_lt() {
+    v1="${1}"
+    v2="${2}"
+
+    semver_lte "${v1}" "${v2}" && [[ ! "${v1}" == "${v2}" ]]
+}
+
+semver_gte() {
+    v1="${1}"
+    v2="${2}"
+
+    ! semver_lt "${v1}" "${v2}"
+}
+
+semver_gt() {
+    v1="${1}"
+    v2="${2}"
+
+    ! semver_lte "${v1}" "${v2}"
+}