contrib/dockerlib.sh
author Pierre-Yves David <pierre-yves.david@fb.com>
Sun, 17 May 2015 17:58:39 -0700
changeset 25144 81a395447b34
parent 24970 33055069e465
child 26888 271a802071b7
permissions -rw-r--r--
revset: use 'next()' to detect end of iteration in 'limit' The 'next()' built-in can return a default value, allow to get rid of the confusing try/except code flow.
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#!/bin/sh -eu
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# This function exists to set up the DOCKER variable and verify that
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# it's the binary we expect. It also verifies that the docker service
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# is running on the system and we can talk to it.
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function checkdocker() {
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  if which docker.io >> /dev/null 2>&1 ; then
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    DOCKER=docker.io
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  elif which docker >> /dev/null 2>&1 ; then
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    DOCKER=docker
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  else
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    echo "Error: docker must be installed"
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    exit 1
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  fi
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  $DOCKER -h 2> /dev/null | grep -q Jansens && { echo "Error: $DOCKER is the Docking System Tray - install docker.io instead"; exit 1; }
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  $DOCKER version | grep -q "^Client version:" || { echo "Error: unexpected output from \"$DOCKER version\""; exit 1; }
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  $DOCKER version | grep -q "^Server version:" || { echo "Error: could not get docker server version - check it is running and your permissions"; exit 1; }
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}
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# Construct a container and leave its name in $CONTAINER for future use.
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function initcontainer() {
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  [ "$1" ] || { echo "Error: platform name must be specified"; exit 1; }
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  DFILE="$ROOTDIR/contrib/docker/$1"
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  [ -f "$DFILE" ] || { echo "Error: docker file $DFILE not found"; exit 1; }
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  CONTAINER="hg-dockerrpm-$1"
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  DBUILDUSER=build
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  (
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    cat $DFILE
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    if [ $(uname) = "Darwin" ] ; then
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        # The builder is using boot2docker on OS X, so we're going to
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        # *guess* the uid of the user inside the VM that is actually
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        # running docker. This is *very likely* to fail at some point.
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        echo RUN useradd $DBUILDUSER -u 1000
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    else
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        echo RUN groupadd $DBUILDUSER -g `id -g`
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        echo RUN useradd $DBUILDUSER -u `id -u` -g $DBUILDUSER
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    fi
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  ) | $DOCKER build --tag $CONTAINER -
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}