Add shar pkg build script

pkg/shar/build_shar.sh

@@ -0,0 +1,301 @@
+#!/bin/sh
+#
+# Name:     build_shar.sh
+# Requires: python-pip, gcc, gcc-c++, swig, sharutils, and the develepment
+#           headers for both python and openssl
+#
+# This script will use GNU sharutils to build an installable shar archive, with
+# an install prefix of "/opt". This has a couple uses:
+#
+#   1. Installing salt (by cd'ing to root and running "sh /path/to/sharfile")
+#   2. To be used as a basis for creating your own salt rpm/deb.
+#
+# It will fetch libzmq and build it as a pyzmq extension.
+#
+# The script is capable of building a shar archive using several methods:
+#
+#   1. Using a custom pip requirements file
+#   2. Using an existing salt tarball (downloaded from PyPI)
+#   3. Specifying a version number (the script will fetch the requested version
+#      from PyPI)
+#
+# Additionally, it is possible to specify a build_id which will be added to the
+# shar filename, useful for telling apart individual shars.
+#
+# It is recommended to run this script on a machine which does not have any of
+# the Salt dependencies already installed.
+#
+# Run the script with -h for usage details.
+#
+
+
+# Terminate script if any command fails
+set -o errexit
+
+################################# FUNCTIONS ##################################
+
+function _timestamp {
+    date "+%Y-%m-%d %H:%M:%S:"
+}
+
+function _log {
+    timestamp=$(_timestamp)
+    echo "$1" | sed "s/^/$(_timestamp) /" >>"$logfile"
+}
+
+# Both echo and log
+function _display {
+    echo "$1"
+    _log "$1"
+}
+
+function _error {
+    msg="ERROR: $1"
+    echo "$msg" 1>&2
+    echo "$(_timestamp) $msg" >>"$logfile"
+    echo "One or more errors found. See $logfile for details." 1>&2
+    exit 1
+}
+
+function _tolower {
+    echo "$1" | tr '[:upper:]' '[:lower:]'
+}
+
+function _find_tarball {
+    target=$1
+    location=$2
+    _log "Looking for $target tarball in $location"
+
+    # We're looking for a tarball starting with "$target-"
+    len_target=`expr length "$target"`
+    let len_target=${len_target}+1
+
+    matches=()
+    for filename in `ls "${location}"`
+    do
+        case "$filename" in
+            *tar.*)
+                filename_lower=$(_tolower "$filename")
+                target_lower=$(_tolower "$target")
+                if test ${filename_lower:0:${len_target}} == "${target_lower}-"; then
+                    matches=("${matches[@]}" "$filename")
+                    test ${#matches[@]} -gt 1 && _error "Ambiguous target \"${target}\""
+                fi
+                ;;
+            *) continue;;
+        esac
+    done
+    match=${matches[0]}
+    if test -n "$match"; then
+        _log "$target tarball is ${matches[0]}"
+        echo ${matches[0]}
+    else
+        _error "$target tarball was not found in $location"
+    fi
+}
+
+function _requirements_str {
+    test -n "$1" && echo "${srcdir}/${1}/requirements.txt" || _error 'Missing release string for _requirements_str'
+}
+
+function _get_requirements {
+    if test -z "$requirements"; then
+        if test -n "${salt_release}"; then
+            # salt_release is only set at this point if -s was passed, in which
+            # case the tarball has been unpacked already and we want to grab
+            # the tarballs from its requirements.txt.
+            requirements=$(_requirements_str "$salt_release")
+        fi
+    else
+        # Custom requirements were passed via -r
+        _display "Using custom requirements from $requirements"
+    fi
+
+    _display 'Grabbing source tarballs'
+    if test -n "$requirements"; then
+        # Either custom requirements were passed, or a salt tarball was
+        # provided. Either way, we're going to be telling pip to download
+        # tarballs using the instructions in the requirements.txt.
+        output=`"$PIP" install $PIP_OPTS --download "$srcdir" --requirement "$requirements"`; return_code=$?
+    else
+        # Neither -r nor -s was specified. We are just downloading the current
+        # version of salt from pip, and letting pip resolve dependencies rather
+        # than providing them in a requirements.txt.
+        #
+        # If -v was provided, then pip will download the specified version,
+        # otherwise this variable will be blank.
+        output=`"$PIP" install $PIP_OPTS --download "$srcdir" salt$version`; return_code=$?
+    fi
+    _log "$output"
+    test "$return_code" -eq 0 || _error 'Failed to download tarballs. Aborting.'
+}
+
+function _unpack_salt_tarball {
+    _display "Unpacking Salt tarball"
+    if test -z "$salt_tarball"; then
+        salt_tarball=$(_find_tarball salt "$srcdir")
+        salt_release=${salt_tarball%%.tar*}
+    fi
+    cd "$srcdir"
+    rm -rf "$salt_release"
+    tar xf "$salt_tarball"
+    test -z "$requirements" && requirements=$(_requirements_str "$salt_release")
+}
+
+function _usage {
+    printf "USAGE: build_shar.sh [-i <build_id>] [-r <requirements file> |-s <alternate salt tarball>|-v <version from pypi>]\n\n" 1>&2
+    exit 2
+}
+
+#################################### MAIN ####################################
+
+while getopts hi:r:s:v: opt; do
+    case "$opt" in
+        i)
+            build_id=$OPTARG;;
+        r)
+            requirements=$OPTARG
+            test -f "$requirements" || _error "Requirements file $requirements does not exist"
+            ;;
+        s)
+            salt_tarball=$OPTARG
+            test -f "$salt_tarball" || _error "Salt tarball $salt_tarball does not exist"
+            ;;
+        v)
+            version=$OPTARG
+            ;;
+        *) _usage;;
+    esac
+done
+
+# Make sure that only one of -r/-s/-v was specified
+opt_count=0
+for opt in "$requirements" "$salt_tarball" "$version"; do
+    test -n "$opt" && let opt_count=$opt_count+1
+done
+test $opt_count -ge 2 && _usage
+
+# If version was provided, prepend with "==" for later use in pip command
+test -n "$version" && version="==${version}"
+
+# Set up logging
+orig_cwd="`pwd`"
+logfile="${orig_cwd}/install.`date +%Y%m%d%H%M%S`.log"
+echo "Install log location: $logfile"
+
+# Make needed directories
+srcdir="${orig_cwd}/src"
+pkgdir="${orig_cwd}/pkg"
+test -d "$srcdir" || mkdir "$srcdir"
+_log "Source directory: $srcdir"
+if test -d "$pkgdir"; then
+    _log "Removing $pkgdir"
+    rm -rf "$pkgdir"
+    _log "Creating $pkgdir"
+    mkdir "$pkgdir"
+fi
+_log "Package directory: $pkgdir"
+
+# Make sure pip is available
+test -z "$PYTHON" && PYTHON=`command -v python`
+test -z "$PYTHON" && _error 'Python not present'
+_display "Python == $PYTHON"
+if ! test -x "`command -v $PYTHON`"; then
+    _error "$PYTHON is not executable"
+fi
+
+# Make sure pip is available
+test -z "$PIP" && PIP=`command -v pip`
+test -z "$PIP" && _error 'pip not present'
+_display "pip == $PIP"
+if ! test -x "`command -v $PIP`"; then
+    _error "$PIP is not executable"
+fi
+
+# Check if wheel is supported in current version of pip
+"$PIP" help install 2>/dev/null | egrep --quiet '(--)no-use-wheel' && PIP_OPTS='--no-use-wheel' || PIP_OPTS=''
+
+# Make sure swig is available
+test -z "$SWIG" && SWIG=`command -v swig`
+test -z "$SWIG" && _error 'swig not present'
+_display "swig == $SWIG"
+if ! test -x "`command -v $SWIG`"; then
+    _error "$SWIG is not executable"
+fi
+
+# Make sure gcc, g++, and sharutils are available
+test -n "`command -v gcc`" && _display 'gcc found' || _error 'gcc not installed'
+test -n "`command -v g++`" && _display 'g++ found' || _error 'g++ not installed'
+test -n "`command -v shar`" && _display 'sharutils found' || _error 'sharutils not installed'
+
+# Build a couple commands for later
+INSTALL="${PYTHON} setup.py install --root=${pkgdir} --prefix=/opt"
+FETCH_LIBZMQ="${PYTHON} setup.py fetch_libzmq"
+
+if test -n "$salt_tarball"; then
+    cp "$salt_tarball" "$srcdir" || _error "Unable to copy salt tarball to $srcdir"
+    salt_tarball=`basename "$salt_tarball"`
+    salt_release=${salt_tarball%%.tar*}
+    _unpack_salt_tarball
+    _get_requirements
+else
+    _get_requirements
+    _unpack_salt_tarball
+fi
+
+_display "Reading requirements from $requirements"
+deps=()
+for dep in `cat "$requirements" | awk '{print $1}'`; do
+    test "$dep" == 'salt' && continue
+    deps=("${deps[@]}" "$dep")
+done
+
+for dep in "${deps[@]}"; do
+    _display "Dependency found: $dep"
+done
+
+# Install the deps
+for dep in "${deps[@]}"; do
+    tarball=$(_find_tarball "$dep" "$srcdir")
+    cd "$srcdir"
+    src=${tarball%%.tar*}
+    _display "Unpacking $src"
+    rm -rf $src
+    tar xf $tarball
+    cd "$src"
+    # Fetch libzmq so bundled build works on CentOS 5
+    if test "${src:0:5}" == 'pyzmq'; then
+        _display "Fetching libzmq"
+        output=`$FETCH_LIBZMQ 2>&1`; return_code=$?
+        test "$return_code" -eq 0 || _error 'Failed to fetch libzmq. Aborting.'
+    fi
+    _display "Installing $src"
+    if test "${src:0:8}" == 'M2Crypto'; then
+        arch=`uname -m`
+        output=`env SWIG_FEATURES="-cpperraswarn -includeall -D__${arch}__ -I/usr/include/openssl" $INSTALL 2>&1`; return_code=$?
+    else
+        output=`$INSTALL 2>&1`; return_code=$?
+    fi
+    _log "$output"
+    test "$return_code" -eq 0 || _error "Failed to install $src. Aborting."
+done
+
+# Install salt
+cd "${srcdir}/${salt_release}"
+_display "Installing $salt_release"
+output=`$INSTALL 2>&1`; return_code=$?
+_log "$output"
+test "$return_code" -eq 0 || _error "Failed to install $salt_release. Aborting."
+
+# Everything worked, make the shar
+test -n "$build_id" && build_id="-${build_id}"
+pkg="${orig_cwd}/${salt_release}${build_id}.shar"
+sharlog="${pkg}.log"
+_display "Packaging Salt... Destination: $pkg"
+_display "shar log will be written to $sharlog"
+cd "$pkgdir"
+shar opt >"$pkg" 2>"$sharlog"
+test "$?" -eq 0 || _error 'shar file build failed'
+
+# Done!
+_display "Build of $pkg complete! Nice!"

pkg/shar/salt.sh

@@ -0,0 +1,33 @@
+# Set up Salt-specific environment variables
+#
+# Drop this into /etc/profile.d to add the neede /opt paths to your environment
+# on login
+#
+
+export PATH=$PATH:/opt/bin
+
+# Hard-code the python version (major and minor, i.e. 2.6 or 2.7) here if you
+# don't trust the logic below.
+#
+#pyver=2.6
+#
+
+if test -z "$pyver"; then
+    # Detect RHEL 5 and Arch, operating systems for which "/usr/bin/env python"
+    # refers to a python version <2.6 or >=3.0.
+    if test -f /etc/redhat-release; then
+        osmajor=`egrep -o '[0-9]+\.[0-9]+' /etc/redhat-release | cut -f1 -d.`
+        test "$osmajor" -eq 5 && pyver=2.6
+    elif test -f /etc/arch-release; then
+        python=python2
+    fi
+
+    if test -z "$pyver"; then
+        test -z "$python" && python=python
+        pyver=`/usr/bin/env $python -V 2>&1 | cut -f2 -d' ' | cut -f1,2 -d.`
+    fi
+fi
+
+# Only add directories to PYTHONPATH if we were able to determine the python
+# version.
+test -n "$pyver" && export PYTHONPATH=$PYTHONPATH:/opt/lib/python${pyver}/site-packages:/opt/lib64/python${pyver}/site-packages