From 52ef92f5d32d80471e6418dd9214eb4b78c2c933 Mon Sep 17 00:00:00 2001
From: Geoffrey Frogeye <geoffrey@frogeye.fr>
Date: Thu, 16 Jul 2015 13:49:33 +0200
Subject: [PATCH] Local package installer

---
 scripts/lopac.sh | 85 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 scripts/lopac.sh

diff --git a/scripts/lopac.sh b/scripts/lopac.sh
new file mode 100644
index 0000000..373ef0f
--- /dev/null
+++ b/scripts/lopac.sh
@@ -0,0 +1,85 @@
+# Local package installer
+
+# Config
+export LOPAC_DIR="$HOME/.local/"
+export LOPAC_CONFIG="$XDG_CONFIG_HOME/lopac/"
+
+# Constants
+LOPAC_TMP_DIR=/tmp/lopac
+
+# Path set
+export PATH="$LOPAC_DIR/bin:$LOPAC_DIR/usr/bin:$PATH"
+export LD_LIBRARY_PATH="$LOPAC_DIR/lib:$LOPAC_DIR/usr/lib:$LD_LIBRARY_PATH"
+
+# Dir set
+if [ ! -d "$LOPAC_TMP_DIR" ]; then
+  mkdir "$LOPAC_TMP_DIR"
+fi
+
+# Misc functions
+function step { # str
+    echo "--> $1"
+}
+
+function error { # str
+    echo "ERR $1"
+}
+
+function getPageLink { # package, arch, repo
+    echo "https://www.archlinux.org/packages/$3/$2/$1/"
+}
+
+function getDlLink { # package, arch, repo
+    echo "$(getPageLink $1 $2 $3)download/"
+}
+
+function testLink { # link
+    wget -q --max-redirect 0 "$1" -O /dev/null
+    return $?
+}
+
+function testPackage { # package, arch, rep
+    link="$(getPageLink $1 $2 $3)"
+    testLink "$link"
+    return $?
+}
+
+function findPackage { # package
+    for repo in community core extra
+    do
+        for arch in any $(uname -m)
+        do
+            testPackage $1 $arch $repo
+            if [ $? -eq 0 ]
+            then
+                echo "$arch:$repo"
+                return 0
+            fi
+        done
+    done
+    return 1
+}
+
+
+# Main functions
+function install { # package
+    package=$1
+    step "Finding $package"
+    data=$(findPackage $package)
+    if [ $? -ne 0 ]; then
+        error "Package not found"
+        return 1
+    fi
+    arch=$(cut -d ":" -f 1 <<< "$data")
+    repo=$(cut -d ":" -f 2 <<< "$data")
+
+    step "Downloading $repo/$package-$arch"
+    link=$(getDlLink $package $arch $repo)
+    wget $link -O $LOPAC_TMP_DIR/$package.tar.xz
+    step "Extracting package"
+    if [ ! -d "$LOPAC_TMP_DIR/$package" ]; then
+        mkdir "$LOPAC_TMP_DIR/$package"
+    fi
+    tar xJf "$LOPAC_TMP_DIR/$package.tar.xz" -C "$LOPAC_TMP_DIR/$package"
+
+}