init commit

.gitmodules

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+[submodule "idonethis/src"]
+	path = idonethis/src
+	url = git@github.com:influitive/idonethis.git

idonethis/.idonethisrc

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+---
+sender: GmailSender

idonethis/Dockerfile

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+FROM ruby:1.9.3-p547
+MAINTAINER Jessica Frazelle <jess@docker.com>
+
+# update gems
+RUN gem update --system
+RUN gem update
+
+# install idonethis from git
+COPY src/ /idonethis
+RUN cd /idonethis; rake build; gem install /idonethis/pkg/idonethis-0.1.0.gem;
+
+COPY .idonethisrc /
+COPY main.sh /
+
+ENTRYPOINT ["/main.sh"]

idonethis/main.sh

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+#!/bin/bash
+# main entry point to run idonethis
+
+function checkvars() {
+    if [[ -z "${IDT_USERNAME}" ]]; then
+        echo "ERROR: The environment variable IDT_USERNAME is not set."
+        exit 1
+    fi
+
+    if [[ -z "${IDT_PASSWORD}" ]]; then
+        echo "ERROR: The environment variable IDT_PASSWORD is not set."
+        exit 1
+    fi
+
+    if [[ -z "${IDT_ADDRESS}" ]]; then
+        echo "ERROR: The environment variable IDT_ADDRESS is not set."
+        exit 1
+    fi
+}
+
+function main() {
+    checkvars
+
+    cat <<EOT >> /.idonethisrc
+username: $IDT_USERNAME
+password: $IDT_PASSWORD
+idonethis_address: $IDT_ADDRESS
+EOT
+}
+
+main
+echo "Sending message: '$@'"
+idonethis "$@"