init

.gitignore

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+test/

README.md

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+# AAA (a3)
+
+AAA stands for "AAA, I want a package"
+
+## What does it do?
+Manage packages and setup software.
+
+(It also provides a useful library!)

bin/a3

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+#!/bin/sh
+
+set -e
+
+. ${A3_LIB_PATH:-/usr/lib/a3}/include.sh
+a3include_lib a3
+a3include_lib log
+a3include_lib util
+
+A3_FILE=$1
+[ -z "$A3_FILE" ] && exit 1
+if ! [ -f "$A3_FILE" ]; then
+    LOGD "lfa3"
+    A3_FILE=$(a3index_find $A3_FILE)
+    [ -z "$A3_FILE" ] && fatal_log "no a3 file found"
+fi
+shift
+
+name=$(a3ff a3read_meta name)
+description=$(a3ff a3read_meta description)
+author=$(a3ff a3read_meta author)
+url=$(a3ff a3read_meta url)
+require_value meta:a3.name $name
+
+echo "name: $name"
+[ -n "$description" ] && echo "description: $description"
+[ -n "$author" ] && echo "author: $author"
+[ -n "$url" ] && echo "url: $url"
+echo "status: $(a3index_current_status $name || echo "not installed")"
+echo "---"
+
+A3_INSTALL_BIN_PATH=${A3_INSTALL_BIN_PATH:-/usr/bin}
+A3_INSTALL_LIB_PATH=${A3_INSTALL_LIB_PATH:-/usr/lib}
+
+main() {
+    case $1 in
+    update)
+        a3index_is $name installed || fatal_log not installed.
+        a3index_update $name pending
+        A3_FILE=$(a3index_find $name)
+        main install
+        ;;
+    install)
+        a3index_is $name installed && fatal_log "$name is already installed."
+        oldpwd=$(pwd)
+        if [ -n "$(a3ff a3read_declaration declare_workdir | head -n 1)" ]; then
+            cd $(a3ff a3read_declaration declare_workdir | head -n 1)
+        fi
+        a3ff a3index_create $name
+        a3ff a3read_declaration declare_executable | while read ex; do
+            [ -z "$ex" ] && continue
+            filename=$(basename $ex)
+            if [ -f "$A3_INSTALL_BIN_PATH/$filename" ]; then
+                LOGW "overwriting $A3_INSTALL_BIN_PATH/$filename..."
+            else
+                LOGI "copying $ex to $A3_INSTALL_BIN_PATH/$filename..."
+            fi
+            cp $ex $A3_INSTALL_BIN_PATH/$filename
+            chmod +x $A3_INSTALL_BIN_PATH/$filename
+        done
+        a3ff a3read_declaration declare_library | while read lib; do
+            [ -z "$lib" ] && continue
+            if [ -d "$A3_INSTALL_LIB_PATH/$name" ]; then
+                LOGW "overwriting $A3_INSTALL_LIB_PATH/$name..."
+            else
+                LOGI "copying library..."
+            fi
+            cp -r $lib/. $A3_INSTALL_LIB_PATH/$name
+        done
+        a3index_update $name installed
+        cd $oldpwd
+        ;;
+    eval) shift; $@ ;;
+    remove)
+        a3index_is $name installed || fatal_log "$name is not installed."
+        a3ff a3read_declaration declare_executable | while read ex; do
+            filename=$(basename $ex)
+            [ -f "$A3_INSTALL_BIN_PATH/$filename" ] || fatal_log "$A3_INSTALL_BIN_PATH/$filename does not exist"
+            LOGI "removing $A3_INSTALL_BIN_PATH/$filename..."
+            rm $A3_INSTALL_BIN_PATH/$filename
+        done
+        a3ff a3read_declaration declare_library | while read lib; do
+            [ -d "$A3_INSTALL_LIB_PATH/$name" ] || continue
+            LOGI "removing library..."
+            rm -r $A3_INSTALL_LIB_PATH/$name
+        done
+        a3index_update $name cache
+        ;;
+    list)
+        for f in $(find $A3_INDEX_ROOT -iname "*.a3"); do
+            echo "$(a3read_meta "$f" name): $(basename $(dirname $f))"
+        done
+    esac
+}
+
+main $@

dev

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+#!/bin/sh
+
+export A3_LIB_PATH="./lib"
+export A3_INDEX_ROOT="./test/index"
+export A3_INSTALL_BIN_PATH="./test/bin"
+export A3_INSTALL_LIB_PATH="./test/lib"
+
+mkdir -p \
+    $A3_INDEX_ROOT \
+    $A3_INSTALL_BIN_PATH \
+    $A3_INSTALL_LIB_PATH
+
+exec ./bin/a3 $@

doc/declarations.md

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+# Declarations for a3
+
+| usage                               | description                                       |
+| ----------------------------------- | ------------------------------------------------- |
+| `declare_executable <path>`         | the executable to put in /usr/bin                 |
+| `declare_library <path> [lib_name]` | library to put at /usr/lib/<a3.name>(/<lib_name>) |

lib/a3.sh

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+#!/bin/sh
+
+# General purpose for a3
+
+# a3ff <func> [args]: runs functions and automatically makes the first arg the file
+# a3ff => a3 file function
+A3_FILE=${A3_FILE:-}
+a3ff() {
+    [ -z "$A3_FILE" ] && return 1
+    local func=$1
+    [ -z "$func" ] && return 1
+    shift
+    $func $A3_FILE $@
+}
+
+A3_INDEX_ROOT=${A3_INDEX_ROOT:-/var/lib/a3/index}
+
+a3index_create() {
+    file=$1
+    name=$2
+    [ -z "$file" ] && return 1
+    [ -z "$name" ] && return 1
+    [ "$file" = "$A3_INDEX_ROOT/pending/$name.a3" ] && return 0
+    mkdir -p $A3_INDEX_ROOT/pending
+    cp $file $A3_INDEX_ROOT/pending/$name.a3
+    if ! grep -q "declare_workdir" $A3_INDEX_ROOT/pending/$name.a3; then
+        echo -e "\ndeclare_workdir $(pwd)" >> $A3_INDEX_ROOT/pending/$name.a3
+    fi
+}
+
+a3index_find() {
+    name=$1
+    [ -z "$name" ] && return 1
+    find $A3_INDEX_ROOT -iname "$name.a3" | head -n 1
+}
+
+a3index_current_status() {
+    name=$1
+    [ -z "$name" ] && return 1
+    file=$(a3index_find $name)
+    [ -z "$file" ] && return 1
+    basename $(dirname $file)
+}
+
+a3index_update() {
+    name=$1
+    status=$2
+    [ -z "$name" ] && return 1
+    [ -z "$status" ] && return 1
+    [ -f "$A3_INDEX_ROOT/$status/$name.a3" ] && return 0
+    file=$(a3index_find $name)
+    [ -z "$file" ] && return 1
+    mkdir -p $A3_INDEX_ROOT/$status
+    mv $file $A3_INDEX_ROOT/$status/$name.a3
+}
+
+a3index_is() {
+    name=$1
+    status=$2
+    [ -z "$name" ] && return 1
+    [ -z "$status" ] && return 1
+    [ -f "$A3_INDEX_ROOT/$status/$name.a3" ]
+}
+
+a3read_declaration() {
+    file=$1
+    declaration=$2
+    [ -z "$file" ] && return 1
+    [ -z "$declaration" ] && return 1
+    shift; shift
+    grep "$declaration" $file | sed "s/$declaration//" | awk '{$1=$1};1'
+}
+
+a3read_meta() {
+    file=$1
+    prop=$2
+    [ -z "$file" ] && return 1
+    [ -z "$prop" ] && return 1
+    shift; shift
+    
+    grep "#a3.$prop:" $file | sed "s/#a3.$prop://" | xargs
+}

lib/include.sh

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+#!/bin/sh
+
+if ! [ $A3_INCLUDE ]; then
+    A3_INCLUDE=1
+    A3_INCLUDED=""
+    A3_LIB_PATH=${A3_LIB_PATH:-/usr/lib/a3}
+    is_included() {
+        echo "$A3_INCLUDED" | grep -q "$1"
+    }
+
+    include() {
+        [ -z "$1" ] && return 0
+        is_included $1 && return 0
+        . $1
+        A3_INCLUDED="$A3_INCLUDED $1"
+    }
+
+    a3include_lib() {
+        include $A3_LIB_PATH/$1.sh
+    }
+fi

lib/log.sh

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+#!/bin/sh
+
+
+# levels:
+# DEBUG = 0
+# INFO  = 1
+# WARN  = 2
+# ERROR = 3
+A3_LOG_LEVEL=${A3_LOG_LEVEL:-1}
+
+__a3_log_level_to_text() {
+    case $1 in
+    0) echo "debug" ;;
+    1) echo "info" ;;
+    2) echo "warn" ;;
+    3) echo "error" ;;
+    4) echo "fatal" ;;
+    esac
+}
+
+__a3_log() {
+    level=$1
+    shift
+    if [ $level -ge $A3_LOG_LEVEL ]; then
+        echo "[$(__a3_log_level_to_text $level)] $@"
+    fi
+}
+
+alias LOGD="__a3_log 0"
+alias LOGI="__a3_log 1"
+alias LOGW="__a3_log 2"
+alias LOGE="__a3_log 3"
+
+fatal_log() {
+    __a3_log 4 $@
+    exit 1
+}

lib/util.sh

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+#!/bin/sh
+
+require_value() {
+    local name=$1; shift
+    if [ -z "$@" ]; then
+        echo "expected value for: $name"
+        exit 1
+    fi
+}

meta.a3

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+#!bin/a3
+
+#a3.name: a3
+#a3.description: a tool to manage packages and setup software.
+#a3.author: Strix
+#a3.url: https://git.saluco.nl/strix/aaa
+
+declare_executable ./bin/a3
+declare_library ./lib