From c3ebd755b9e0b042b06ade6daaeacbf39a86895e Mon Sep 17 00:00:00 2001
From: IceCodeNew <32576256+IceCodeNew@users.noreply.github.com>
Date: Fri, 25 Sep 2020 14:29:53 +0800
Subject: [PATCH 1/3] Introduce a more convenient way to detect systemd

Refer: https://manpages.ubuntu.com/manpages/focal/en/man3/sd_booted.3.html
---
 install-release.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/install-release.sh b/install-release.sh
index 4aec23e..96597c7 100644
--- a/install-release.sh
+++ b/install-release.sh
@@ -93,7 +93,14 @@ identify_the_operating_system_and_architecture() {
       echo "error: Don't use outdated Linux distributions."
       exit 1
     fi
-    if [[ -z "$(ls -l /sbin/init | grep systemd)" ]]; then
+    # Do not combine this judgment condition with the following judgment condition.
+    ## Be aware of Linux distribution like Gentoo, which kernel supports switch between Systemd and OpenRC.
+    ### Refer: https://github.com/v2fly/fhs-install-v2ray/issues/84#issuecomment-688574989
+    if [[ -f /.dockerenv ]] || grep -q 'docker\|lxc' /proc/1/cgroup && [[ "$(type -P systemctl)" ]]; then
+      true
+    elif [[ -d /run/systemd/system ]] || grep -q systemd <(ls -l /sbin/init); then
+      true
+    else
       echo "error: Only Linux distributions using systemd are supported."
       exit 1
     fi

From 8e5c2e067f246800d90ab909b57c79798a432f5a Mon Sep 17 00:00:00 2001
From: IceCodeNew <32576256+IceCodeNew@users.noreply.github.com>
Date: Fri, 25 Sep 2020 15:16:06 +0800
Subject: [PATCH 2/3] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=9C=A8=E6=B2=A1?=
 =?UTF-8?q?=E6=9C=89=E9=A2=84=E8=A3=85=20`curl`=20=E7=9A=84=E7=B3=BB?=
 =?UTF-8?q?=E7=BB=9F=E4=B8=8A=E8=84=9A=E6=9C=AC=E4=BC=9A=E8=BF=90=E8=A1=8C?=
 =?UTF-8?q?=E5=A4=B1=E8=B4=A5=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 install-release.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/install-release.sh b/install-release.sh
index 96597c7..7bdbee4 100644
--- a/install-release.sh
+++ b/install-release.sh
@@ -28,7 +28,7 @@ green=$(tput setaf 2)
 reset=$(tput sgr0)
 
 curl() {
-    $(type -P curl) -L -q --retry 5 --retry-delay 10 --retry-max-time 60 "$@"
+  $(type -P curl) -L -q --retry 5 --retry-delay 10 --retry-max-time 60 "$@"
 }
 
 check_if_running_as_root() {
@@ -108,8 +108,8 @@ identify_the_operating_system_and_architecture() {
       PACKAGE_MANAGEMENT_INSTALL='apt install -y --no-install-recommends'
       PACKAGE_MANAGEMENT_REMOVE='apt purge'
     elif [[ "$(type -P dnf)" ]]; then
-        PACKAGE_MANAGEMENT_INSTALL='dnf install -y'
-        PACKAGE_MANAGEMENT_REMOVE='dnf remove'
+      PACKAGE_MANAGEMENT_INSTALL='dnf install -y'
+      PACKAGE_MANAGEMENT_REMOVE='dnf remove'
     elif [[ "$(type -P yum)" ]]; then
       PACKAGE_MANAGEMENT_INSTALL='yum install -y'
       PACKAGE_MANAGEMENT_REMOVE='yum remove'
@@ -180,7 +180,7 @@ judgment_parameters() {
 
 install_software() {
   COMPONENT="$1"
-  command -v "$COMPONENT" > /dev/null 2>&1 && return
+  type -P "$COMPONENT" > /dev/null 2>&1 && return
   if ${PACKAGE_MANAGEMENT_INSTALL} "$COMPONENT"; then
     echo "info: $COMPONENT is installed."
   else
@@ -219,7 +219,6 @@ get_version() {
   fi
   # Get V2Ray release version number
   TMP_FILE="$(mktemp)"
-  install_software curl
   # DO NOT QUOTE THESE `${PROXY}` VARIABLES!
   if ! curl ${PROXY} -sS -H "Accept: application/vnd.github.v3+json" -o "$TMP_FILE" 'https://api.github.com/repos/v2fly/v2ray-core/releases/latest'; then
     "rm" "$TMP_FILE"
@@ -502,6 +501,7 @@ main() {
     decompression "$LOCAL_FILE"
   else
     # Normal way
+    install_software curl
     get_version
     NUMBER="$?"
     if [[ "$NUMBER" -eq '0' ]] || [[ "$FORCE" -eq '1' ]] || [[ "$NUMBER" -eq 2 ]]; then

From 3540fe109c60b52f201dffae0f44d9666b1f9cbc Mon Sep 17 00:00:00 2001
From: IceCodeNew <32576256+IceCodeNew@users.noreply.github.com>
Date: Fri, 25 Sep 2020 15:56:39 +0800
Subject: [PATCH 3/3] assume yes to remove action; sync repo while installing
 package

Fix https://github.com/v2fly/fhs-install-v2ray/pull/141/checks?check_run_id=1164621937
---
 install-release.sh | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/install-release.sh b/install-release.sh
index 7bdbee4..460bd89 100644
--- a/install-release.sh
+++ b/install-release.sh
@@ -106,19 +106,19 @@ identify_the_operating_system_and_architecture() {
     fi
     if [[ "$(type -P apt)" ]]; then
       PACKAGE_MANAGEMENT_INSTALL='apt install -y --no-install-recommends'
-      PACKAGE_MANAGEMENT_REMOVE='apt purge'
+      PACKAGE_MANAGEMENT_REMOVE='apt purge -y --auto-remove'
     elif [[ "$(type -P dnf)" ]]; then
       PACKAGE_MANAGEMENT_INSTALL='dnf install -y'
-      PACKAGE_MANAGEMENT_REMOVE='dnf remove'
+      PACKAGE_MANAGEMENT_REMOVE='dnf remove -y'
     elif [[ "$(type -P yum)" ]]; then
       PACKAGE_MANAGEMENT_INSTALL='yum install -y'
-      PACKAGE_MANAGEMENT_REMOVE='yum remove'
+      PACKAGE_MANAGEMENT_REMOVE='yum remove -y'
     elif [[ "$(type -P zypper)" ]]; then
-      PACKAGE_MANAGEMENT_INSTALL='zypper install -y'
-      PACKAGE_MANAGEMENT_REMOVE='zypper remove'
+      PACKAGE_MANAGEMENT_INSTALL='zypper install -y --no-recommends'
+      PACKAGE_MANAGEMENT_REMOVE='zypper remove -yu'
     elif [[ "$(type -P pacman)" ]]; then
-      PACKAGE_MANAGEMENT_INSTALL='pacman -S --noconfirm'
-      PACKAGE_MANAGEMENT_REMOVE='pacman -R'
+      PACKAGE_MANAGEMENT_INSTALL='pacman -Syu --noconfirm'
+      PACKAGE_MANAGEMENT_REMOVE='pacman -Rsun --noconfirm'
     else
       echo "error: The script does not support the package manager in this operating system."
       exit 1