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# Maintainer (Arch): Eli Schwartz <eschwartz@archlinux.org>
# Maintainer (Arch): Jonas Witschel <diabonas@archlinux.org>
# Contributor (Arch): Daniel Landau <daniel.landau@iki.fi>
# Contributor (Arch): Einhard Leichtfuß <alguien@respiranto.de>
# Contributor (Arch): Xyne
# Contributor (Arch): David Manouchehri <d@32t.ca>
# Contributor (Arch): Alexander Fehr <pizzapunk gmail com>
# Contributor (Arch): Thomas Jost <schnouki schnouki net>
# Contributor (Arch): Hinrich Harms <arch hinrich de>
# Maintainer: Omar Vega Ramos <ovruni@gnu.org.pe>


# parabola changes and rationale:
# * replace 'thunderbird' dependency with 'icedove'
# * apply dependency version constraints
# * allow building arch-specific packages (different version constraints)


_pkgname=thunderbird-extension-enigmail
pkgname=icedove-extension-enigmail
pkgver=2.1.7
pkgrel=3
pkgrel+=.parabola3
_icedove_epoch=1
pkgdesc="OpenPGP message encryption and authentication for Icedove"
arch=(armv7h i686 x86_64) # this could be an 'any' package; but arches roll at different speeds
url="https://www.enigmail.net/"
license=('MPL' 'GPL3')
depends=('gnupg' 'icedove')
makedepends=('zip' 'python' 'perl')
replaces=($_pkgname)
source=("https://www.enigmail.net/download/source/enigmail-${pkgver}.tar.gz"{,.asc}
        "0001-preferences-disable-pEpAutoDownload-by-default.patch"
        "0001-Disable-Thunderbird-78-upgrade-warning-message.patch"
        "0001-genxpi-make-XPI-files-reproducible.patch")
sha512sums=('1b57091c8ab9aaa086f327b78d904d688c850b6d39e37e2dac82e0629c0279723eae4608ecd08a24efe9ed1bdc86fbc497e97cd800c7349a70612a42b98f3e41'
            'SKIP'
            'baebd963400574db89be747a4419534f945bdc64136d4014656ff98a9615a23984bca724da3f3840670979aab08ce441eee067921e21d0cb216938a20ed785b2'
            '4ddf887765e4296b3c639748d875b179d1e2a5fb38ad16e2918f115a9ff9a05e2f9c66218544f7ab8189f096908df761d4047fd5d23972c02737e46c4a0c843c'
            '3902e09d801f8a3fd493450a85c23d3cd95c68465df0025599e6c923b9708a6cb0cb09920170ec5055d55a56e287ae468460fca150f7be8af9d83cffa1a40427')
b2sums=('8f6d1ec16b48219c75c6dbcddf4807ed57965eeec29776e7c757d5aa34da6bfdbbb58964ee3d7de2efcb65ab69fa5b020f1a8ec01cd8eee662d8195a217cdc69'
        'SKIP'
        'c593ed7b094d9feecb2f14624cf0628ab390c96f0fb0212ab0069333508b59057ef4b0518da1bf59eb8aaf0942303c4c45afab76d0b8e77a93763eab975cb4c0'
        'a2ba38e56f14a87834023076a75a6c59bc17488104227d8db3e31072f2dcc6488808a980b4073111dec4cf4661349c3e995b8226808c3038d96f2cab666eb90b'
        '55709a3fd099fab4b11289518a44f2b53e81031606529cec5b4786e796de438faefa52f2a7ab3d29d6b3aca120e279f30d6d7ba3c3e3d02ca2abcb85f1652661')
validpgpkeys=('4F9F89F5505AC1D1A260631CDB1187B9DD5F693B') # Patrick Brunschwig <patrick@enigmail.net>


_version_constraint() # (dep_pkgname [precision])
{
  local dep_pkgname=$1
  local full_version=$(pacman -S --print-format='%v' ${dep_pkgname} | tail -n 1)
  local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}")
  local def_precision=$(( n_dots + 1 ))
  local precision=$( [[ "$2" =~ ^[1-${def_precision}]$ ]] && echo $2 || echo ${def_precision} )
  local pkgver_rx='[^-\.\ ]+'
  local subver_rx='\.'${pkgver_rx}
  local pkgrel_rx='[^-\ ]+'
  local capture_rx=${pkgver_rx}
  for (( n_dots=1 ; n_dots < precision ; n_dots++ )) ; do capture_rx+=${subver_rx} ; done ;

  if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-${pkgrel_rx}$ ]]
  then local version=${BASH_REMATCH[1]}
       local subver_inc=$(( ${version##*.} + 1 ))
       local version_inc=$( [[ "${version}" =~ \. ]] && echo ${version%.*}.${subver_inc} || \
                                                        echo ${subver_inc}                  )
       local constraint_string="${dep_pkgname}>=${version} ${dep_pkgname}<${version_inc}"

       echo "applied version constraint: ${constraint_string}" >&2

       echo -n "${constraint_string}"
  else echo "ERROR: _version_constraint() error parsing: dep_pkgname='${dep_pkgname}' full_version='${full_version}'" >&2
       exit 1
  fi
}

prepare() {
    cd "${srcdir}"/enigmail

    # Using vendor settings via /usr/lib/thunderbird/defaults/preferences/enigmail.js
    # does not seem to work.
    patch -p1 -i ../0001-preferences-disable-pEpAutoDownload-by-default.patch

    # Disable warning message in favour of a versioned dependency to discourage partial upgrades
    patch -p1 -i ../0001-Disable-Thunderbird-78-upgrade-warning-message.patch

    # Make timestamps in the generated XPI file respect SOURCE_DATE_EPOCH
    # (https://gitlab.com/enigmail/enigmail/-/merge_requests/45)
    patch -p1 -i ../0001-genxpi-make-XPI-files-reproducible.patch
}

build() {
    cd "${srcdir}"/enigmail

    ./configure
    make -j1 # fails with -j greater than 1
}

package() {
    # parabola dependency version contraints
    local gnupg_constraints="$(  _version_constraint 'gnupg'  )"
    local icedove_constraints="$(_version_constraint 'icedove')"
    depends+=( ${gnupg_constraints} ${icedove_constraints} )

    # upstream min thunderbird version contraint
    local min_icedove_ver=$(grep strict_min_version "${srcdir}"/enigmail/build-tb/dist/manifest.json | sed 's|.*: "\([0-9]*\)\..*|\1|g')
    if   (( min_icedove_ver + 0 ))
    then local constraint_string="icedove>=${_icedove_epoch}:${min_icedove_ver}"
         depends+=(${constraint_string})
         echo "applied upstream icedove version constraint: ${constraint_string}"
    fi

    cd "${srcdir}"/enigmail

    if ! _extension_id="$(sed -n '/.*<em:id>\(.*\)<\/em:id>.*/{s//\1/p;q}' build-tb/dist/install.rdf 2>/dev/null)" ||
            [[ -z $_extension_id ]]; then
        _extension_id="$(sed -n 's/.*"id": "\(.*\)".*/\1/p' build-tb/dist/manifest.json)"
    fi
    _extension_dest="${pkgdir}/usr/lib/icedove/extensions/${_extension_id}"
    # Should this extension be unpacked or not?
    if grep -q '<em:unpack>true</em:unpack>' build-tb/dist/install.rdf 2>/dev/null; then
        install -dm755 "${_extension_dest}"
        cp -R build-tb/dist/* "${_extension_dest}"
        chmod -R ugo+rX "${_extension_dest}"
    else
        install -Dm644 build-tb/enigmail-${pkgver}.xpi "${_extension_dest}.xpi"
    fi
}