Improve and fix scripts

append_doc_feature.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env -S bash -euo pipefail
 
 for var in "$@"
 do

append_info.sh

@@ -1,6 +1,4 @@
-#!/bin/bash
-
-set -e
+#!/usr/bin/env -S bash -euo pipefail
 
 for var in "$@"
 do
@@ -19,4 +17,4 @@ do
     # Find the first free line after "//!" comments and insert the text there
     sed "0,/^[[:space:]]*$/ s/^[[:space:]]*$/$TEXT\n/" $var -i
   fi
-done
+done

build_relm_docs.sh

@@ -1,17 +1,10 @@
-#!/bin/sh
+#!/usr/bin/env -S bash -euo pipefail
 
-# Return on error
-set -e
+mkdir --parents docs/{stable,next} tmp
+pushd tmp
 
-mkdir docs
-mkdir docs/stable
-mkdir docs/next
-
-mkdir tmp
-cd tmp
-
-git clone https://github.com/AaronErhardt/relm4 ./
-git checkout stable
+git clone --depth 1 --no-single-branch -- https://github.com/Relm4/Relm4 ./
+git switch --detach $(git tag --list --sort "v:refname" | grep -v - | tail -n 1)
 
 # Stable docs
 export STABLE=1
@@ -20,26 +13,27 @@ find -name "lib.rs" -exec ../append_doc_feature.sh {} +
 
 cargo update
 
-cd relm4-components
+pushd relm4-components
 cargo +nightly doc --all-features -Z rustdoc-scrape-examples
+popd
 
-cd ../relm4-macros
+pushd relm4-macros
 cargo +nightly doc --all-features
 # -Z rustdoc-scrape-examples
+popd
 
-cd ..
 cargo +nightly doc --all-features -Z rustdoc-scrape-examples
 
-cd ..
+popd
 
 mv tmp/target/doc/* docs/stable
 
 # Unstable docs
 export STABLE=0
-cd tmp
+pushd tmp
 
 git stash
-git checkout main
+git switch main
 
 cargo clean --doc
 cargo update
@@ -50,7 +44,7 @@ export RUSTDOCFLAGS="--cfg dox"
 
 cargo +nightly doc --all-features -Z rustdoc-scrape-examples
 
-cd ..
+popd
 
 mv tmp/target/doc/* docs/next
 

fix_ssh.sh

@@ -1,7 +1,4 @@
-#!/bin/bash
-
-# Return on error
-set -e
+#!/usr/bin/env -S bash -euo pipefail
 
 # Overwrite global SSH configuration
 echo "Host *