From e5d50eb7e52e7e27959a1b912fb1c156fe2b2ff7 Mon Sep 17 00:00:00 2001
From: Guilherme Rugai Freire <dev@grfreire.com>
Date: Sun, 4 Jun 2023 17:58:40 -0300
Subject: [PATCH] create tar-install script

---
 bin/tar-install            |   1 +
 tar-install/README.md      |  40 +++++++++++++
 tar-install/tar-install.sh | 119 +++++++++++++++++++++++++++++++++++++
 3 files changed, 160 insertions(+)
 create mode 120000 bin/tar-install
 create mode 100644 tar-install/README.md
 create mode 100755 tar-install/tar-install.sh

diff --git a/bin/tar-install b/bin/tar-install
new file mode 120000
index 0000000..948d3dd
--- /dev/null
+++ b/bin/tar-install
@@ -0,0 +1 @@
+../tar-install/tar-install.sh
\ No newline at end of file
diff --git a/tar-install/README.md b/tar-install/README.md
new file mode 100644
index 0000000..9548931
--- /dev/null
+++ b/tar-install/README.md
@@ -0,0 +1,40 @@
+# tar-install
+
+## About
+Easily install binary tarballs in your home directory without messing with native packages.
+
+> DO NOT USE AS A PACKAGE MANAGER REPLACEMENT
+
+### Use cases:
+ - Testing out binaries without commitment
+ - Installing software just for your user
+ - Installing local libs
+ - Using releases not yet distributed by your package manager
+ - etc
+
+## How to use it
+
+### Preparing the environment
+
+1. Create a folder in your home dir called `.opt`
+2. Add to your path `$HOME/.opt/bin/`
+3. That's it! Start installing packages
+
+### Installing
+From `tar-install -h`:
+```
+Usage: tar-install [OPTION] FILE
+  tar-install file.tar                      Install the tar program in $HOME/.opt
+  tar-install -u, --uninstall file.tar      Uninstall the tar file already installed
+
+ATENTION: BE SURE THAT YOUR TARBALL HAS THE FOLLOWING FORMAT:
+  /program_name
+      /bin
+          program
+      /lib
+          ...
+      /share
+          ... 
+```
+
+
diff --git a/tar-install/tar-install.sh b/tar-install/tar-install.sh
new file mode 100755
index 0000000..7398b10
--- /dev/null
+++ b/tar-install/tar-install.sh
@@ -0,0 +1,119 @@
+#!/bin/sh
+
+install_location="$HOME/.opt"
+
+
+help() {
+    program="$(basename "$0")"
+    echo "Usage: $program [OPTION] FILE"
+    echo "  $program file.tar                      Install the tar program in $install_location"
+    echo "  $program -u, --uninstall file.tar      Uninstall the tar file already installed"
+    echo ""
+    echo "ATENTION: BE SURE THAT YOUR TARBALL HAS THE FOLLOWING FORMAT:"
+    echo "  /program_name"
+    echo "      /bin"
+    echo "          program"
+    echo "      /lib"
+    echo "          ..."
+    echo "      /share"
+    echo "          ..."
+}
+
+uninstall() {
+    file=$1
+
+    if [ -z "$file" ]; then
+        printf "File was not provided.\n\n"
+        help
+        exit 1
+    fi
+
+    echo "UNINSTALLING $file"
+
+    # Get files to remove
+    printf "\nListing files for removal in %s\n\n" "$file"
+    echo "+ tar -tf $file | cut -d'/' -f 2-"
+    files_and_folders_to_remove="$(tar -tf "$file" | cut -d'/' -f 2-)"
+    exit_code="$?"
+
+    if [ "$exit_code" -ne 0 ]; then
+        printf "\nError listing files in %s\n" "$file"
+        exit "$exit_code";
+    fi
+
+    files_to_remove="$(echo "$files_and_folders_to_remove" | awk -F'/' '{if ($NF != "") print $0}')"
+    folders_to_remove="$(echo "$files_and_folders_to_remove" | awk -F'/' '{if ($NF == "") print $0}' | tac)"
+
+    # Remove files
+    printf "\nRemoving files\n\n"
+    echo "+ echo \$files_to_remove | xargs -I'{}' rm -r $install_location/{}"
+    echo "$files_to_remove" | xargs -I'{}' rm "$install_location"/{}
+    exit_code="$?"
+
+    if [ "$exit_code" -ne 0 ]; then
+        printf "\nError removing files in %s\n" "$install_location"
+        exit "$exit_code";
+    fi
+
+    printf "\nRemoving empty folders\n\n"
+    echo "+ echo \$folders_to_remove | xargs -I'{}' rm -d $install_location/{}"
+    echo "$folders_to_remove" | xargs -I'{}' rm -d "$install_location"/{}
+
+    printf "\nSuccessefully uninstalled %s\n" "$file"
+}
+
+
+install() {
+    file=$1
+
+    if [ -z "$file" ]; then
+        printf "File was not provided.\n\n"
+        help
+        exit 1
+    fi
+
+    echo "INSTALLING $file"
+
+    tmp_location="${install_location}/tmp"
+    mkdir "$tmp_location"
+
+    # Extract the archive
+    printf "\nExtracting %s to %s\n\n" "$file" "$tmp_location"
+    echo "+ tar -xvf $file -C $tmp_location"
+    tar -xvf "$file" -C "$tmp_location"
+    exit_code="$?"
+
+    if [ "$exit_code" -ne 0 ]; then
+        printf "\nError extracting %s\n" "$file"
+        exit "$exit_code";
+    fi
+
+    extracted_to="$tmp_location/$(tar -tf "$file" | cut -d'/' -f1 | head -n1)"
+ 
+    # Install to $install_location
+    printf "\nInstalling %s\n\n" "$file"
+
+    echo "+ find $extracted_to -maxdepth 1 | awk -F '/' '(NR> 1) {print $NF}' | xargs -I'{}' mv $extracted_to/{} $install_location/{}"
+    find "$extracted_to" -maxdepth 1 | awk -F '/' '(NR> 1) {print $NF}' | xargs -I'{}' cp -r "$extracted_to"/{} "$install_location"/
+    exit_code="$?"
+
+    if [ "$exit_code" -ne 0 ]; then
+        printf "\nError installing %s into %s\n" "$extracted_to" "$install_location"
+        exit "$exit_code";
+    fi
+
+    rm -rf "$tmp_location"
+
+    printf "\nSuccessefully installed %s\n" "$file"
+}
+
+arg="${1}"
+case ${arg} in
+    "-h"|"help")
+        help;;
+    "-u"|"uninstall")
+        uninstall "$2";;
+    *)
+        install "$1";;
+esac
+