[glib: 1/4] ci: Fix backslash escaping in run-docker.sh

[Philip Withnall <pwithnall src gnome org>]

commit 51651ac67efc9ba91e0859f4512b8d224e953ba2
Author: Philip Withnall <pwithnall endlessos org>
Date:   Tue Nov 17 14:21:57 2020 +0000

    ci: Fix backslash escaping in run-docker.sh
    
    Spotted by shellcheck (warning SC1117): `\e` is not an actual escape
    sequence, so it’s interpreted as `\\e`. Best make that explicit.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 .gitlab-ci/run-docker.sh | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/.gitlab-ci/run-docker.sh b/.gitlab-ci/run-docker.sh
index 6299c5595..56b2b0a7d 100755
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -46,7 +46,7 @@ while (($# > 0)); do
                 --base|-b) read_arg base "$@" || shift;;
                 --base-version) read_arg base_version "$@" || shift;;
                 --no-login) no_login=1;;
-                *) echo -e "\e[1;31mERROR\e[0m: Unknown option '$1'"; exit 1;;
+                *) echo -e "\\e[1;31mERROR\\e[0m: Unknown option '$1'"; exit 1;;
         esac
         shift
 done
@@ -75,7 +75,7 @@ if [ $list == 1 ]; then
                 filename=$( basename -- "$f" )
                 basename="${filename%.*}"
 
-                echo -e "  \e[1;39m$basename\e[0m"
+                echo -e "  \\e[1;39m$basename\\e[0m"
         done
         exit 0
 fi
@@ -87,7 +87,7 @@ if [ -z "${base}" ]; then
 fi
 
 if [ ! -f "$base.Dockerfile" ]; then
-        echo -e "\e[1;31mERROR\e[0m: Dockerfile for '$base' not found"
+        echo -e "\\e[1;31mERROR\\e[0m: Dockerfile for '$base' not found"
         exit 1
 fi
 
@@ -100,7 +100,7 @@ fi
 TAG="registry.gitlab.gnome.org/gnome/glib/${base}:${base_version}"
 
 if [ $build == 1 ]; then
-        echo -e "\e[1;32mBUILDING\e[0m: ${base} as ${TAG}"
+        echo -e "\\e[1;32mBUILDING\\e[0m: ${base} as ${TAG}"
         $SUDO_CMD docker build \
                 --build-arg HOST_USER_ID="$UID" \
                 --build-arg COVERITY_SCAN_PROJECT_NAME="${COVERITY_SCAN_PROJECT_NAME}" \
@@ -111,7 +111,7 @@ if [ $build == 1 ]; then
 fi
 
 if [ $push == 1 ]; then
-        echo -e "\e[1;32mPUSHING\e[0m: ${base} as ${TAG}"
+        echo -e "\\e[1;32mPUSHING\\e[0m: ${base} as ${TAG}"
 
         if [ $no_login == 0 ]; then
                 $SUDO_CMD docker login registry.gitlab.gnome.org
@@ -122,7 +122,7 @@ if [ $push == 1 ]; then
 fi
 
 if [ $run == 1 ]; then
-        echo -e "\e[1;32mRUNNING\e[0m: ${base} as ${TAG}"
+        echo -e "\\e[1;32mRUNNING\\e[0m: ${base} as ${TAG}"
         $SUDO_CMD docker run \
                 --rm \
                 --volume "$(pwd)/..:/home/user/app" \