Re: [PATCH RFC] Add Travis and Appveyor CI support

Hi Bart,

Also check out my travis config - configuring with different sets of
configure args - minimalist is important to me, so it's nice to have
regression testing against, and we had a couple of interesting bugs
reported agaist --disable-set-support and --enable-read-only, so I added
them.  Obviously your method with the script is better than mine with the
horrorshow long line in the travis config.

https://raw.githubusercontent.com/fenner/net-snmp/master-travis/.travis.yml

I got it working with "sudo:false" but obviously v6 doesn't work, I'm happy
to see us use the "sudo:true" infrastructure to get v6.

  Bill


On Wed, Apr 25, 2018 at 11:06 AM, Bart Van Assche <[email protected]>
wrote:

> Hello,
>
> One of the advantages of github over SourceForge is that integration with
> continuous integration (CI) services like Travis and Appveyor is easy.
> Adding such support however requires to add proper configuration files and
> the necessary scripts in the source tree. Hence this patch. As one can see
> for Linux all regression tests are run, for OS/X some regression tests are
> run and for MSVC and Cygwin no regression tests are run. All four builds
> pass with this patch. As usual, feedback is welcome.
>
> Bart.
>
>
> ---
>  .appveyor.yml                                      |  10 +
>  .travis.yml                                        |  35 ++++
>  ci/build.bat                                       |  30 +++
>  ci/build.sh                                        |  17 ++
>  ci/net-snmp-configure                              | 211 +++++++++++++
>  ci/net-snmp-run-perl-tests                         |   9 +
>  ci/net-snmp-run-python-tests                       |  16 ++
>  ci/net-snmp-run-tests                              |  37 ++++
>  .../fulltests/default/T200snmpv2cwalkall_simple    |   2 +
>  testing/fulltests/support/simple_eval_tools.sh     |  21 +-
>  10 files changed, 381 insertions(+), 7 deletions(-)
>  create mode 100644 .appveyor.yml
>  create mode 100644 .travis.yml
>  create mode 100644 ci/build.bat
>  create mode 100755 ci/build.sh
>  create mode 100755 ci/net-snmp-configure
>  create mode 100755 ci/net-snmp-run-perl-tests
>  create mode 100755 ci/net-snmp-run-python-tests
>  create mode 100755 ci/net-snmp-run-tests
>
> diff --git a/.appveyor.yml b/.appveyor.yml
> new file mode 100644
> index 000000000000..137c52052d34
> --- /dev/null
> +++ b/.appveyor.yml
> @@ -0,0 +1,10 @@
> +image:
> +  - Visual Studio 2017
> +environment:
> +  matrix:
> +    - BUILD: MSVC
> +    # - BUILD: MinGW
> +    - BUILD: Cygwin
> +clone_depth: 5
> +build_script:
> +  - 'call "ci\build.bat"'
> diff --git a/.travis.yml b/.travis.yml
> new file mode 100644
> index 000000000000..7262aa19aab0
> --- /dev/null
> +++ b/.travis.yml
> @@ -0,0 +1,35 @@
> +language: c
> +
> +os:
> +  - linux
> +  - osx
> +
> +dist: trusty
> +
> +sudo: required
> +
> +addons:
> +  apt:
> +    packages:
> +      - dpkg
> +      - gcc
> +      - libatm-dev
> +      - libperl-dev
> +      - libsensors4-dev
> +      - libssh-dev
> +      - libssl-dev
> +      - make
> +      - perl-modules
> +      - pkg-config
> +      - python-dev
> +      - python-setuptools
> +
> +# Add an IPv6 config - see the corresponding Travis issue
> +# https://github.com/travis-ci/travis-ci/issues/8361
> +before_script:
> +  - if [ "${TRAVIS_OS_NAME}" == "linux" ]; then
> +      sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6;
> printf "\n::1 localhost ipv6-localhost ipv6-loopback\n" >>/etc/hosts; cat
> /etc/hosts';
> +    fi
> +  - 'if [ "${TRAVIS_OS_NAME}" == "osx" ]; then brew upgrade openssl
> >/dev/null 2>&1; fi'
> +
> +script: ci/build.sh
> diff --git a/ci/build.bat b/ci/build.bat
> new file mode 100644
> index 000000000000..cea6a89a4886
> --- /dev/null
> +++ b/ci/build.bat
> @@ -0,0 +1,30 @@
> +echo "Build type %BUILD%"
> +@echo on
> +goto %BUILD%
> +echo "Error: unknown build type %BUILD%"
> +goto eof
> +
> +:MSVC
> +REM see also https://www.appveyor.com/docs/lang/cpp/
> +REM if exist "C:\Program Files (x86)\Microsoft Visual Studio\2017" (
> +REM   set "d=C:\Program Files (x86)\Microsoft Visual Studio\2017"
> +REM ) else if exist "C:\Program Files\Microsoft Visual Studio\2017" (
> +REM   set "d=C:\Program Files\Microsoft Visual Studio\2017"
> +REM )
> +REM cmd /c ""%d%"\Community\VC\Auxiliary\Build\vcvarsall.bat x86"
> +REM install:
> +call "C:\Program Files (x86)\Microsoft Visual Studio
> 14.0\VC\vcvarsall.bat"
> +cd win32
> +perl Configure --config=release --with-sdk --with-ipv6 --with-winextdll
> --linktype=dynamic
> +nmake
> +goto eof
> +
> +:MinGW
> +C:\msys64\usr\bin\bash --login -c 'set -x; cd "${APPVEYOR_BUILD_FOLDER}";
> ci/build.sh'
> +goto eof
> +
> +:Cygwin
> +c:\cygwin\bin\bash --login -c 'set -x; cd "${APPVEYOR_BUILD_FOLDER}";
> ci/build.sh'
> +goto eof
> +
> +:eof
> diff --git a/ci/build.sh b/ci/build.sh
> new file mode 100755
> index 000000000000..3e306d82bf17
> --- /dev/null
> +++ b/ci/build.sh
> @@ -0,0 +1,17 @@
> +#!/bin/bash
> +
> +scriptdir="$(dirname "$0")"
> +export NOAUTODEPS=1
> +export SNMP_VERBOSE=1
> +if [ -z "$OSTYPE" ]; then
> +    case "$(uname)" in
> +        Linux)  OSTYPE=linux;;
> +        Darwin) OSTYPE=darwin;;
> +        *)      OSTYPE="UNKNOWN:$(uname)";;
> +    esac
> +    export OSTYPE
> +fi
> +"${scriptdir}"/net-snmp-configure master || exit $?
> +make -s                                  || exit $?
> +[ "$OSTYPE" = cygwin ]                  && exit 0
> +"${scriptdir}"/net-snmp-run-tests        || exit $?
> diff --git a/ci/net-snmp-configure b/ci/net-snmp-configure
> new file mode 100755
> index 000000000000..03e12e7fe737
> --- /dev/null
> +++ b/ci/net-snmp-configure
> @@ -0,0 +1,211 @@
> +#!/usr/bin/env bash
> +
> +# Necessary software packages for building Net-SNMP:
> +# autoconf automake libtool m4
> +# glibc glibc-devel libssh2 libssh2-devel openssl openssl-devel rpm-devel
> +# perl-ExtUtils-MakeMaker perl-ExtUtils-Embed perl-Test-Harness
> +# python python-devel python-setuptools
> +
> +branch_name="$1"
> +shift
> +
> +is_5_7_or_above="false"
> +is_5_8_or_above="false"
> +if [ "${branch_name#master}" != "${branch_name}" ]; then
> +  is_5_8_or_above="true"
> +  is_5_7_or_above="true"
> +elif [ "${branch_name#V5-7-}" != "${branch_name}" ]; then
> +  is_5_7_or_above="true"
> +fi
> +have_rtnetlink=true
> +set -x
> +if ! echo "$*" | grep -Eq 'with-openssl=(no|internal)'; then
> +    case "${OSTYPE}" in
> +       linux*)
> +            opensslver="$(
> +                for p in openssl-devel libopenssl-devel libressl-devel; do
> +                   rpm -q --qf '%{version}\n' $p 2>/dev/null;
> +                done;
> +               dpkg-query --show -f '${Version}\n' libssl-dev 2>/dev/null;
> +               pacman -Q openssl 2>&1 | sed -n 's/^openssl[[:blank:]]*//p'
> +            )";;
> +       *)
> +           opensslver=1.0;;
> +    esac
> +fi
> +set +x
> +if grep -q 'CentOS release 4' /etc/issue 2>/dev/null; then
> +  opensslver=""
> +  have_rtnetlink=false
> +fi
> +opensshver="$({
> +    rpm -q openssh-devel;
> +    rpm -q libssh2-devel;
> +    rpm -q libssh-devel; } 2>/dev/null |
> +    sed -n 's/^.*ssh[0-9]*-devel-\([0-9a-z.]*\)-.*$/\1/p' | head -n1)"
> +
> +options=()
> +options+=(--enable-developer)
> +options+=(--enable-ipv6)
> +options+=("--prefix=/usr/local/net-snmp-${branch_name}")
> +options+=("--with-cflags=$cflags")
> +options+=(--with-defaults)
> +transports=()
> +[ "$opensshver" != "" ] && transports+=(SSH)
> +# Mib names can be found as follows:
> +# (cd agent/mibgroup &&
> +# git grep -lE 'void[[:blank:]]*init_.*\(void\)|config_require\(' |
> +#  sed -n 's/\.h$//p')
> +mibs=()
> +mibs+=(examples/data_set)
> +mibs+=(examples/delayed_instance)
> +mibs+=(examples/example)
> +mibs+=(examples/notification)
> +mibs+=(examples/scalar_int)
> +mibs+=(examples/ucdDemoPublic)
> +mibs+=(examples/watched)
> +mibs+=(mibII)
> +mibs+=(smux)
> +
> +case "$(uname)" in
> +  Linux*)
> +      options+=(--enable-new-features)
> +      $is_5_7_or_above && mibs+=(deliver/deliverByNotify)
> +      mibs+=(disman/event)
> +      #mibs+=(disman/expression) - to do: figure out why this fails on
> Travis
> +      mibs+=(disman/mteEventNotificationTable)
> +      mibs+=(disman/mteEventTable)
> +      mibs+=(disman/mteObjectsTable)
> +      mibs+=(disman/mteTriggerBooleanTable)
> +      mibs+=(disman/mteTriggerDeltaTable)
> +      mibs+=(disman/mteTriggerExistenceTable)
> +      mibs+=(disman/mteTriggerTable)
> +      mibs+=(disman/mteTriggerThresholdTable)
> +      mibs+=(disman/nslookup-mib)
> +      mibs+=(disman/ping-mib)
> +      mibs+=(disman/schedule)
> +      mibs+=(disman/traceroute-mib)
> +      $have_rtnetlink && mibs+=(etherlike-mib)
> +      mibs+=(examples/netSnmpHostsTable)
> +      mibs+=(hardware/cpu)
> +      mibs+=(hardware/fsys)
> +      mibs+=(hardware/memory)
> +      mibs+=(hardware/sensors)
> +      mibs+=(host)
> +      mibs+=(ip-forward-mib)
> +      mibs+=(ip-mib/inetNetToMediaTable)
> +      mibs+=(ip-mib/ipDefaultRouterTable)
> +      mibs+=(ip-mib/ipv4InterfaceTable)
> +      mibs+=(ip-mib/ipv6InterfaceTable)
> +      mibs+=(ip-mib/ipv6ScopeZoneIndexTable)
> +      mibs+=(mibII/ipAddr)
> +      mibs+=(mibII/mta_sendmail)
> +      mibs+=(misc/ipfwacc)
> +      mibs+=(sctp-mib)
> +      mibs+=(snmp-notification-mib)
> +      [ "$opensslver" != "" ] && mibs+=(snmp-usm-dh-objects-mib)
> +      mibs+=(tcp-mib)
> +      mibs+=(testhandler)
> +      [ "$opensslver" != "" ] && mibs+=(tlstm-mib tsm-mib)
> +      mibs+=(tunnel)
> +      mibs+=(ucd-snmp/diskio)
> +      mibs+=(ucd-snmp/lmsensorsMib)
> +      mibs+=(ucd-snmp/extensible)
> +      mibs+=(udp-mib)
> +      if $have_rtnetlink; then
> +         mibs+=(rmon-mib)
> +      else
> +         mibs+=(Rmon)
> +         mibs+=(Rmon/alarm)
> +      fi
> +      options+=(--with-mysql)
> +      options+=(--with-perl-modules)
> +      transports+=(AAL5PVC)
> +      transports+=(IPX)
> +      transports+=(STD)
> +      $is_5_8_or_above && transports+=(UDPshared)
> +      [ "$opensslver" = "" ] && options+=("--with-openssl=internal")
> +      options+=("--with-default-snmp-version=2")
> +      { rpm -q python-setuptools >/dev/null 2>&1 || rpm -q python-devel
> >/dev/null 2>&1 || dpkg-query -l python-setuptools >/dev/null 2>&1; } &&
> options+=(--with-python-modules)
> +      # Disabled modules because troublesome: Rmon ipfwchains/ipfwchains
> ucd-snmp/lmSensors
> +    ;;
> +  darwin*|Darwin*)
> +      mibs+=(disman/nslookup-mib)
> +      mibs+=(host)
> +      mibs+=(if-mib)
> +      mibs+=(mibII/mta_sendmail)
> +      mibs+=(misc/ipfwacc)
> +      mibs+=(snmp-notification-mib)
> +      mibs+=(snmp-usm-dh-objects-mib)
> +      mibs+=(tcp-mib)
> +      mibs+=(ucd-snmp/diskio)
> +      mibs+=(ucd-snmp/extensible)
> +      mibs+=(udp-mib)
> +      mibs+=(Rmon)
> +      options+=(--with-python-modules)
> +      if [ "${TRAVIS_OS_NAME}" == "osx" ]; then
> +          options+=("--with-openssl=$(brew --prefix openssl)")
> +          # On Travis OS/X linking the Perl modules fails with "undefined
> symbol
> +          # _BN_bin2bn" etc.
> +          options+=(--disable-embedded-perl --without-perl-modules)
> +      fi
> +    ;;
> +  CYGWIN*)
> +      export ENV_SEPARATOR=":"
> +      options+=(--disable-embedded-perl)
> +      mibs+=(ucd-snmp/extensible)
> +      mibs+=(winExtDLL)
> +      #options+=("--with-openssl=internal")
> +      if [ -n "$APPVEYOR" ]; then
> +          # On Appveyor building the Perl modules fails as follows:
> +          # /usr/lib/perl5/5.26/i686-cygwin-threads-64int/CORE/reentr.h:104:26:
> fatal error: crypt.h: No such file or directory
> +          options+=(--disable-embedded-perl --without-perl-modules)
> +      fi
> +    ;;
> +  MINGW*|MSYS*)
> +      options+=(--disable-embedded-perl)
> +      if [ "$branch_name" != "V5-4-patches" ]; then
> +         options+=("--with-openssl=/c/OpenSSL")
> +      fi
> +      mibs+=(snmp-notification-mib)
> +      mibs+=(ucd-snmp/dlmod)
> +      mibs+=(ucd-snmp/extensible)
> +      mibs+=(winExtDLL)
> +      options+=(--without-perl-modules)
> +      #options+=(--with-mibdirs="C:/usr/share/snmp/mibs")
> +      if [ -n "$APPVEYOR" ]; then
> +          options+=(--build=x86_64-pc-mingw32)
> +      fi
> +    ;;
> +  *)
> +    echo "Unknown OS $(uname)."
> +    ;;
> +esac
> +
> +with_openssl=""
> +for o in "${options[@]}"; do
> +    if [ "${o#--with-openssl=}" != "$o" ]; then
> +        with_openssl="${o#--with-openssl=}"
> +    fi
> +done
> +set -x
> +if [ "$opensslver" != "" ] &&
> +       grep -rqw BIO_dgram_get_peer ${with_openssl:-/usr}/include/openssl
> 2>/dev/null
> +then
> +       transports+=(DTLSUDP)
> +        # to do: figure out why one of the IPv6 TLSTCP test fails on
> Travis.
> +        if [ "${TRAVIS_OS_NAME}" != linux ]; then
> +           transports+=(TLSTCP)
> +        fi
> +fi
> +set +x
> +$is_5_8_or_above && options+=(--enable-blumenthal-aes)
> +security_modules=(usm tsm)
> +if [ -e /usr/include/krb5.h ]; then
> +    security_modules+=(ksm)
> +fi
> +set -x
> +./configure "${options[@]}" --with-transports="${transports[*]}"       \
> +            --with-security-modules="${security_modules[*]}"           \
> +           --with-mib-modules="${mibs[*]}" "$@"
> +set +x
> diff --git a/ci/net-snmp-run-perl-tests b/ci/net-snmp-run-perl-tests
> new file mode 100755
> index 000000000000..e87839580a11
> --- /dev/null
> +++ b/ci/net-snmp-run-perl-tests
> @@ -0,0 +1,9 @@
> +#!/bin/bash
> +
> +# See also the output of the following command:
> +# find -name '*.so' | sed 's/^\.\///;s/\/[^\/]*$//' | sort -u
> +export LD_LIBRARY_PATH="$PWD/snmplib/.libs:$PWD/agent/helpers/.libs
> :$PWD/agent/.libs:$PWD/apps/.libs:" &&
> +make perlmakefiles &&
> +cd perl &&
> +make &&
> +make test
> diff --git a/ci/net-snmp-run-python-tests b/ci/net-snmp-run-python-tests
> new file mode 100755
> index 000000000000..df483aa0f27a
> --- /dev/null
> +++ b/ci/net-snmp-run-python-tests
> @@ -0,0 +1,16 @@
> +#!/bin/bash
> +
> +set -x
> +killall snmpd
> +export LD_LIBRARY_PATH="$PWD/snmplib/.libs:$PWD/agent/.libs:$PWD/ag
> ent/helpers/.libs:"
> +export MIBDIRS=$PWD/mibs
> +export SNMP_PERSISTENT_DIR=/tmp/net-snmp
> +export SNMP_SNMPD_PORT=1161
> +export PYTHONPATH=$PWD/python/netsnmp
> +mkdir -p "$SNMP_PERSISTENT_DIR" || exit $?
> +agent/snmpd -I-smux -f -Lo -c python/netsnmp/tests/snmpd.conf
> localhost:${SNMP_SNMPD_PORT} &
> +pid=$!
> +cd python || exit $?
> +python setup.py --basedir="$PWD/.." test || exit $?
> +kill $pid
> +wait
> diff --git a/ci/net-snmp-run-tests b/ci/net-snmp-run-tests
> new file mode 100755
> index 000000000000..29fd62491d18
> --- /dev/null
> +++ b/ci/net-snmp-run-tests
> @@ -0,0 +1,37 @@
> +#!/bin/bash
> +
> +scriptdir="$(dirname "$0")"
> +
> +killall snmpd snmptrapd >&/dev/null
> +
> +export SNMP_VERBOSE=1 &&
> +export SNMP_SAVE_TMPDIR=1 &&
> +export NETSNMP_DNS_WORKAROUND=1 &&
> +make -s &&
> +(
> +      export PATH="$PWD/agent/.libs:$PWD/apps/.libs:$PWD:$PATH" &&
> +      export LD_LIBRARY_PATH="$PWD/snmplib/.libs:$PWD/agent/.libs:$PWD/ag
> ent/helpers/.libs:$PWD/perl/blib/arch/auto/NetSNMP/default_
> store:$PWD/perl/blib/arch/auto/SNMP:$PWD/perl/blib/arch/
> auto/NetSNMP/ASN:$PWD/perl/blib/arch/auto/NetSNMP/OID:$
> PWD/perl/blib/arch/auto/NetSNMP/TrapReceiver:$PWD/perl/blib/
> arch/auto/NetSNMP/agent:$PWD/perl/blib/arch/auto/NetSNMP/agent/default_store:"
> &&
> +      export PERL5LIB="$PWD/perl/blib/lib:$PWD/perl/blib/lib/NetSNMP:$PWD/perl/blib/lib/NetSNMP/agent"
> &&
> +      cd testing &&
> +      if [ -e RUNFULLTESTS ] &&
> +            perl -e 'require TAP::Harness;' >/dev/null 2>&1; then
> +          if [ "${TRAVIS_OS_NAME}" == "osx" ]; then
> +              for g in default snmpv3 unit-tests; do
> +                  echo "==== Test group $g ===="
> +                 ./RUNFULLTESTS -g $g || exit $?
> +                  echo "==== End of test group $g ===="
> +              done
> +          else
> +             ./RUNFULLTESTS -g all
> +          fi
> +      else
> +         make -s test
> +      fi &&
> +      cd .. &&
> +      if [ "${TRAVIS_OS_NAME}" != "osx" ]; then
> +          "$scriptdir/net-snmp-run-perl-tests"
> +      fi
> +) &&
> +if [ "${TRAVIS_OS_NAME}" != "osx" ]; then
> +    "$scriptdir/net-snmp-run-python-tests"
> +fi
> diff --git a/testing/fulltests/default/T200snmpv2cwalkall_simple
> b/testing/fulltests/default/T200snmpv2cwalkall_simple
> index 5d5f16f7dc63..82bfd4785c4c 100644
> --- a/testing/fulltests/default/T200snmpv2cwalkall_simple
> +++ b/testing/fulltests/default/T200snmpv2cwalkall_simple
> @@ -4,6 +4,8 @@
>
>  HEADER "full snmpwalk (SNMPv2c) against agent (may take time)"
>
> +[ "${TRAVIS_OS_NAME}" = "osx" ] && SKIP Skipping MIB walk on Travis OS/X
> +
>  if test `uname -s` = "HP-UX" ; then
>      if test `id -u` != "0" ; then
>          # The agent needs to be run as root - else force skip
> diff --git a/testing/fulltests/support/simple_eval_tools.sh
> b/testing/fulltests/support/simple_eval_tools.sh
> index 4d3beb444c6f..fdd7791d9a3a 100644
> --- a/testing/fulltests/support/simple_eval_tools.sh
> +++ b/testing/fulltests/support/simple_eval_tools.sh
> @@ -1,3 +1,4 @@
> +#!/bin/sh
>  #
>  # eval_tools.sh
>  #
> @@ -47,10 +48,10 @@ fi
>  #
>  HEADER() {
>      if [ "x$SNMP_HEADERONLY" != "x" ]; then
> -        echo test $*
> +        echo "test $*"
>         exit 0;
>      else
> -       { echo "# testing $*"; echo ""; } >> $SNMP_TMPDIR/invoked
> +       { echo "# testing $*"; echo ""; } >> "$SNMP_TMPDIR/invoked"
>      fi
>  }
>
> @@ -68,7 +69,7 @@ GRONK
>  }
>
>  CAN_USLEEP() {
> -   if [ "$SNMP_CAN_USLEEP" = 0 -o "$SNMP_CAN_USLEEP" = 1 ] ; then
> +   if [ "$SNMP_CAN_USLEEP" = 0 ] || [ "$SNMP_CAN_USLEEP" = 1 ] ; then
>       return 0
>     fi
>     sleep .1 > /dev/null 2>&1
> @@ -133,7 +134,7 @@ SKIPIF() {
>  VERIFY() {     # <path_to_file(s)>
>         missingfiles=""
>
> -       for f in $*; do
> +       for f in "$@"; do
>                 [ -f "$f" ] && continue
>                 echo "FAILED: Cannot find file \"$f\"."
>                 missingfiles=true
> @@ -196,14 +197,14 @@ CAPTURE() {       # <command_with_arguments_to_exe
> cute>
>      # track invoked command per test when verbose
>      if [ $SNMP_VERBOSE -gt 0 ]; then
>          OUTPUTENVVARS $junkoutputfile.invoked
> -        echo $* >> $junkoutputfile.invoked
> +        echo "$@" >> $junkoutputfile.invoked
>      fi
>
>      if [ $loggedvars = 0 ]; then
>          OUTPUTENVVARS $SNMP_TMPDIR/invoked
>          loggedvars=1
>      fi
> -    echo $* >> $SNMP_TMPDIR/invoked
> +    echo "$@" >> $SNMP_TMPDIR/invoked
>
>         if [ $SNMP_VERBOSE -gt 0 ]; then
>                 cat <<KNORG
> @@ -409,7 +410,7 @@ WAITFORNOTCOND() {
>
>  # Wait until the shell statement "$@" evaluates to true.
>  WAITFORCOND() {
> -    WAITFORNOTCOND if "$@;" then false ";" else true ";" fi
> +    WAITFORNOTCOND "if $@; then false; else true; fi"
>  }
>
>  WAITFORAGENT() {
> @@ -685,6 +686,12 @@ FINISHED() {
>             rm -f core
>         fi
>         echo "$headerStr...FAIL" >> $SNMP_TMPDIR/invoked
> +        {
> +            find "$SNMP_TMPDIR" -type f |
> +              while read -r f; do
> +                  head -n 256 "$f"; tail -n 256 "$f";
> +              done;
> +        } 1>&2
>         exit 1
>      fi
>
> --
> 2.16.3
>
>
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