From b8d1d11b68d5f07af1a4d2895317affab995177f Mon Sep 17 00:00:00 2001
From: Micheal Quinn <quinnm@missouri.edu>
Date: Mon, 12 Aug 2019 10:53:09 -0500
Subject: [PATCH] Changing PREFIX to INSTALL_PREFIX to avoid clashing with
 possibly set environment variables. Adding logic to handle if we are on
 termux on android (adapted from previous croc install script). Adding an info
 message for what prefix was set to. Adding in armv71 support (need to add
 more or make this a generic case to catch more arm devices).

---
 src/install/rewrite.txt | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/src/install/rewrite.txt b/src/install/rewrite.txt
index 61fa4d3..76807f2 100644
--- a/src/install/rewrite.txt
+++ b/src/install/rewrite.txt
@@ -12,7 +12,7 @@
 #                This script installs croc into a specified prefix.
 #                Default prefix = /usr/local/bin
 #
-#       OPTIONS: -p, --prefix "${PREFIX}"
+#       OPTIONS: -p, --prefix "${INSTALL_PREFIX}"
 #                      Prefix to install croc into.  Defaults to /usr/local/bin
 #  REQUIREMENTS: bash, uname, tar/unzip, curl/wget, sudo (if not run
 #                as root), install, mktemp, sha256sum/shasum/sha256
@@ -30,7 +30,15 @@ set -o nounset                              # Treat unset variables as an error
 #-------------------------------------------------------------------------------
 # DEFAULTS
 #-------------------------------------------------------------------------------
-PREFIX="/usr/local/bin"
+PREFIX="${PREFIX:-}"
+ANDROID_ROOT="${ANDROID_ROOT:-}"
+
+# Termux on Android has ${PREFIX} set which already ends with '/usr'
+if [[ -n "${ANDROID_ROOT}" && -n "${PREFIX}" ]]; then
+  INSTALL_PREFIX="${PREFIX}/bin"
+else
+  INSTALL_PREFIX="/usr/local/bin"
+fi
 
 #-------------------------------------------------------------------------------
 # FUNCTIONS
@@ -48,9 +56,9 @@ print_help() {
 
   help_header="croc Installer Script"
   help_message="Usage:
-  -p PREFIX
+  -p INSTALL_PREFIX
       Prefix to install croc into.  Directory must already exist.
-        Default = /usr/local/bin
+      Default = /usr/local/bin ('\${PREFIX}/bin' on Termux for Android)
   
   -h
       Prints this helpfull message and exit."
@@ -344,7 +352,7 @@ install_file_freebsd() {
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  install_file_linux
 #   DESCRIPTION:  Installs a file into a location using 'install'.  If EUID not
-#                 0, then attempt to use sudo.
+#                 0, then attempt to use sudo (unless on android).
 #    PARAMETERS:  $1 = file to install
 #                 $2 = location to install file into
 #       RETURNS:  0 = File Installed
@@ -367,6 +375,9 @@ install_file_linux() {
       if command -v sudo >/dev/null 2>&1; then
         sudo install -C -b -S '_old' -m 755 "${file}" "${prefix}"
         rcode="${?}"
+      elif [[ "${ANDROID_ROOT}" != "" ]]; then
+        install -C -b -S '_old' -m 755 -t "${prefix}" "${file}"
+        rcode="${?}"
       else
         rcode="3"
       fi
@@ -427,6 +438,8 @@ main() {
   croc_dl_ext="tar.gz"
   croc_base_url="https://github.com/schollz/croc/releases/download"
   prefix="${1}"
+
+  print_message "== Install prefix set to ${prefix}" "info"
   
   tmpdir="$(make_tempdir "${croc_bin_name}")"
   tmpdir_rcode="${?}"
@@ -459,10 +472,15 @@ main() {
     print_message "== 'uname' not found in path. Is it installed?" "error"
   fi
 
+  case "${croc_os}" in
+    "Darwin" ) croc_os="macOS";;
+  esac
+
   case "${croc_arch}" in
      "x86_64" ) croc_arch="64bit";;
       "amd64" ) croc_arch="64bit";;
     "aarch64" ) croc_arch="ARM64";;
+     "armv7l" ) croc_arch="ARM";;
        "i686" ) croc_arch="32bit";;
             * ) croc_arch="unknown";;
   esac
@@ -573,7 +591,7 @@ while getopts "${OPTS}" optchar; do
     'h' ) print_help
           exit 0
           ;;
-    'p' ) PREFIX="${OPTARG}"
+    'p' ) INSTALL_PREFIX="${OPTARG}"
           ;;
      /? ) print_message "Unknown option ${OPTARG}" "warn"
           ;;
@@ -583,4 +601,4 @@ done
 #-------------------------------------------------------------------------------
 # CALL MAIN
 #-------------------------------------------------------------------------------
-main "${PREFIX}"
+main "${INSTALL_PREFIX}"