# Copyright (c) 2018 Nicolas Mailhot <nim@fedoraproject.org>

#

# This file is distributed under the terms of GNU GPL license version 3, or

# any later version.

#

# This file contains macros needed at %%build %%install and %%check

# stage by Golang packages.

# The macros necessary at %%setup and srpm stage are in the sister file

# macros.go-srpm

# find directory filter to remove elements usually not needed to build other Go projects

%gofinddirfilter  -regextype egrep \! -iregex '.*/(.*[._-])?(example(s)?|test(_)?data)/.*' \! -ipath '*/vendor/*' \! -ipath '*/test cases/*'

# find filter to identify resources usually needed to build other Go projects

%gofindfilter     -regextype egrep -iregex '.*\\.(go|c|h|s|tmpl|proto|json)' \! -iname '*_test.go' %{gofinddirfilter}

# find filter to identify unit tests

%gofindtestfilter                  -iname '*.go' %{gofinddirfilter}

# Collect md files spread in subdirectories

%gocollectmd %{expand:

for mdfile in $(find . -iname '*.md' %{gofinddirfilter}) ; do

  suffix=$(dirname $mdfile | sed 's+^\./++g' | sed 's+/+·+g')

  if [[ $suffix != '.' ]] ; then

    cp -p "$mdfile" "$(echo $(basename $mdfile) | sed 's+\.md$++g')·${suffix}.md"

  fi

done}

# Try to install Go package files in sensible locations, with strict directory

# ownership as required by Go autodeps

#

# %%goinstall takes a list of files as argument.

#

# %%goinstall will generate a file list that can be used in a %%files spec

# section. The default file list name is devel.file-list. It can be overriden

# by passing the -f argument to the macro with another filename.

#

# When invoked several times it will append to existing file lists not create

# a new one.

#

# When invoked several times with different file list names, it will attribute

# directories to the first file list that makes use of them only. This is

# intentional, to avoid triggering Go autodeps on the same Go directory in

# different subpackages. Therefore, splitting code in several subpackages

# requires careful though about %%goinstall invocation order.

%goinstall(f:) %{expand:

%global file_list %{?-f*}%{!?-f*:devel.file-list}

install -m 0755 -vd "%{buildroot}%{gopath}/src"

for file in %* ; do

  file="${file#./}"

  [[ -d "$file" && ! -L "$file" ]] && srcdir="$file" || srcdir=$(dirname "$file")

  destdir="%{buildroot}%{gopath}/src/%{goipath}/$srcdir"

  destdir="${destdir%/.}"

  dir="$destdir"

  dirs=()

  while [[ ! -e "$dir" ]] ; do

    dirs=("$dir" "${dirs[@]}")

    dir=$(dirname "$dir")

  done

  for dir in "${dirs[@]}" ; do

    install -m 0755 -vd "$dir"

    if $(echo "$dir" | grep -q "^%{buildroot}%{gopath}/src/%{goipath}") ; then

      touch -r           ".${dir#%{buildroot}%{gopath}/src/%{goipath}}" "$dir"

    fi

    echo "%%dir \"${dir#%{buildroot}}\"" >> %{file_list}

  done

  [[ -L "$file" ]] && cp -vpa "$file" "$destdir/"

  [[ -f "$file" ]] && install -m 0644 -vp  "$file" "$destdir/"

  [[ -f "$file" || -L "$file" ]] && echo "%%{gopath}/src/%%{goipath}/$file" >> %{file_list}

done}

# Create a local Go build root

# Useful in %%build and %%check

%gobuildroot() %{expand:

  GO_BUILD_PATH="$PWD/_build"

  %global gobuildpath "$GO_BUILD_PATH"

  install -m 0755 -vd "$(dirname %{gobuildpath}/src/%{goipath})"

  ln -fs "$PWD" "%{gobuildpath}/src/%{goipath}"

  install -m 0755 -vd _bin

  export GOPATH="%{gobuildpath}:%{gopath}"

  %{?commit:export LDFLAGS="-X %{goipath}/version.GitSHA=%{commit}"}

}

# Run “go test” on all subdirs except for those provided in parameters

# Examples:

#  – run all available unit tests

#    %gochecks

#  — run all available unit tests except in root

#    %gochecks .

#  — run all available unit tests except in root and foo subdir

#    %gochecks . foo

#  — run all available unit tests except in I love cake and _examples subdirectories

#    %gochecks 'I love cake' '_examples/*'

%gochecks() %{expand:

%gobuildroot

export PATH=$PATH:%{buildroot}%{_bindir}

set +x

for sub in $(find . %{gofindtestfilter} -exec dirname '\{\}' \\;|sort|uniq|sed s'+^./++') ; do

  process=true

  declare -a 'excludes=('"%*"')'

  for exclude in "${excludes[@]}" ; do

    [[ $sub == $exclude ]] && process=false && break

  done

  if [ "$process" = true ] ; then

    echo "Testing $sub…"

    pushd "%{gobuildpath}/src/%{goipath}/$sub"

    set -x

    %{gotest}

    set +x

    popd

  fi

done

set -x

}