Source version.txt to get version information

This guards against possible quotes.

.github/workflows/figure-out-branch.sh

@@ -49,7 +49,7 @@ case "${channel_name}" in
         ;;
     alpha|beta|stable|lts)
         link="https://${channel_name}.release.flatcar-linux.net/amd64-usr/current"
-        major=$(curl -sSL "${link}/version.txt" | awk -F= '/FLATCAR_BUILD=/{ print $2 }')
+        major=$(source <(curl -sSL "${link}/version.txt"); echo "${FLATCAR_BUILD}")
         branch="flatcar-${major}"
         ;;
     *)

.github/workflows/mantle-releases-main.yml

@@ -40,7 +40,7 @@ jobs:
             fi
             rm -f lts-info
           else
-            major=$(curl -fsSL --retry-delay 1 --retry 60 --retry-connrefused --retry-max-time 60 --connect-timeout 20 https://${{ matrix.branch }}.release.flatcar-linux.net/amd64-usr/current/version.txt | awk -F= '/FLATCAR_BUILD=/{ print $2 }')
+            major=$(source <(curl -fsSL --retry-delay 1 --retry 60 --retry-connrefused --retry-max-time 60 --connect-timeout 20 https://${{ matrix.branch }}.release.flatcar-linux.net/amd64-usr/current/version.txt); echo "${FLATCAR_BUILD}")
             branch="flatcar-${major}"
           fi
           echo "BRANCH=${branch}" >>"${GITHUB_OUTPUT}"

.github/workflows/setup-flatcar-sdk.sh

@@ -42,9 +42,7 @@ if [[ "${CHANNEL}" = 'main' ]]; then
 fi
 
 # Pin the docker image version to that of the latest release in the channel.
-docker_sdk_vernum="$(curl -s -S -f -L "${MIRROR_LINK}/version.txt" \
-    | grep -m 1 FLATCAR_SDK_VERSION= | cut -d = -f 2- \
-)"
+docker_sdk_vernum=$(source <(curl -s -S -f -L "${MIRROR_LINK}/version.txt"); echo "${FLATCAR_SDK_VERSION}")
 
 docker_image_from_registry_or_buildcache "${sdk_name}" "${docker_sdk_vernum}"
 

ci-automation/image_changes.sh

@@ -235,21 +235,21 @@ function get_channel_a_and_version_a() {
 # --
 
 # Gets the latest release for given channel and board. For lts channel
-# gets a version of the latest LTS.
-function channel_version() {
+# gets a version of the latest LTS. Runs in a subshell.
+function channel_version() (
     local channel=${1}; shift
     local board=${1}; shift
 
-    curl \
-        -fsSL \
-        --retry-delay 1 \
-        --retry 60 \
-        --retry-connrefused \
-        --retry-max-time 60 \
-        --connect-timeout 20 \
-        "https://${channel}.release.flatcar-linux.net/${board}/current/version.txt" | \
-        grep -m 1 'FLATCAR_VERSION=' | cut -d = -f 2-
-}
+    source <(curl \
+                 -fsSL \
+                 --retry-delay 1 \
+                 --retry 60 \
+                 --retry-connrefused \
+                 --retry-max-time 60 \
+                 --connect-timeout 20 \
+                 "https://${channel}.release.flatcar-linux.net/${board}/current/version.txt")
+    echo "${FLATCAR_VERSION}"
+)
 # --
 
 # Prints some reports using scripts from the passed path to

common.sh

@@ -268,8 +268,8 @@ load_environment_var() {
   local file="$1" name value
   shift
   for name in "$@"; do
-    value=$(grep "^${name}=" "${file}" | sed 's|"||g')
-    [[ -n "${value}" ]] && export "${value}"
+    value=$(source "${file}"; echo "${!name}")
+    [[ -n "${value}" ]] && export "${name}=${value}"
   done
 }