Install script

README.md

@@ -47,7 +47,15 @@ More details on various output formats and aggregators (including examples) can
 
 ## Installation
 
-### Manual
+### Bash Script
+
+This script downloads the latest version from github, and installs it to `~/.local/bin` (`/usr/bin` if *root*).
+
+```sh
+curl -sfL https://rare.zdyn.net/install.sh | bash
+```
+
+### Manual (Prebuilt Binary)
 
 Download appropriate binary or package from [Releases](https://github.com/zix99/rare/releases)
 

docs/index.md

@@ -41,7 +41,15 @@ Take a look at [examples](usage/examples.md) to see more of what *rare* does.
 
     I will leave it up to the user as to which they find suitable to use for their situation.  Generally, if you know what *rare* is getting as an input, the pcre version is perfectly safe and can be much faster.
 
-### Manual
+### Bash Script
+
+This script downloads the latest version from github, and installs it to `~/.local/bin` (`/usr/bin` if *root*).
+
+```sh
+curl -sfL https://rare.zdyn.net/install.sh | bash
+```
+
+### Manual (Prebuilt Binary)
 
 Download appropriate binary or package from [Releases](https://github.com/zix99/rare/releases)
 

docs/install.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+set -e
+
+REPO=zix99/rare
+LATEST_TAG_URL="https://api.github.com/repos/${REPO}/releases/latest"
+RELEASES_URL="https://github.com/${REPO}/releases"
+FILE_BASENAME="rare"
+
+# Get latest version tag
+echo "Fetching latest version..."
+LATEST=$( curl -sf "$LATEST_TAG_URL" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' )
+
+if [[ -z $LATEST ]]; then
+    echo "Unable to get version" >&2
+    exit 1
+fi
+echo "  Version: ${LATEST}"
+
+# Temp dir and cleanup
+TMP_DIR="$(mktemp -d)"
+trap "rm -rf \"$TMP_DIR\"" EXIT INT TERM
+
+# Detect version
+OS="$(uname -s)"
+ARCH="$(uname -m)"
+
+TAR_SUFFIX="tar.gz"
+INSTALL_DIR="$HOME/.local/bin"
+case $OS in
+    aarch64)
+        OS=arm64
+        ;;
+    MSYS_NT*)
+        OS=Windows
+        TAR_SUFFIX="zip"
+        ;;
+    Darwin)
+        INSTALL_DIR="$HOME/bin"
+        ;;
+esac
+
+# Download
+TAR_FILENAME="${FILE_BASENAME}_${LATEST}_${OS}_${ARCH}.${TAR_SUFFIX}"
+URL="$RELEASES_URL/download/$LATEST/$TAR_FILENAME"
+
+cd $TMP_DIR
+echo "Downloading $TAR_FILENAME to $TMP_DIR..." >&2
+curl -sfLO $URL
+tar xzf $TAR_FILENAME
+
+if [[ ! -f rare ]]; then
+    echo "Something went wrong, download did not include binary" >&2
+    exit 1
+fi
+
+# Install
+if [[ $USER == "root" ]]; then
+    INSTALL_DIR="/usr/bin"
+    echo "Installing as root to $INSTALL_DIR..." >&2
+    chown root:root rare*
+else
+    echo "Installing to user home $INSTALL_DIR ..." >&2
+    mkdir -p $INSTALL_DIR
+fi
+
+if [[ ! $PATH =~ $INSTALL_DIR ]]; then
+    echo "WARNING: Installation path not in \$PATH environment" >&2
+fi
+
+chmod +x rare
+mv rare $INSTALL_DIR
+echo "Installed rare to $INSTALL_DIR" >&2
+
+if [[ -f rare-pcre ]]; then
+    chmod +x rare-pcre
+    mv rare-pcre $INSTALL_DIR
+    echo "Installed rare-pcre to $INSTALL_DIR" >&2
+fi
+
+# Install man page if able
+if [[ $USER == "root" && -f rare.1.gz ]]; then
+    cp rare.1.gz /usr/share/man/man1/
+    echo "Installed man page" >&2
+fi