josedumas · October 3, 2018 16:58 · Jun 20, 2017 · Jun 20, 2017 · Jun 20, 2017 · Jun 20, 2017
diff --git a/slack.sh b/slack.sh
@@ -3,7 +3,8 @@
 # Slack Bash console script for sending messages.
 ####################################################################################
 # Installation
-#    $ curl -s https://gist.github.com/andkirby/67a774513215d7ba06384186dd441d9e/raw --output slack.sh
+#    $ curl -s https://gist.github.com/andkirby/67a774513215d7ba06384186dd441d9e/raw --output /usr/bin/slack
+#    $ chmod +x /usr/bin/slack
 ####################################################################################
 # USAGE
 # Send message to slack channel/user

diff --git a/slack.sh b/slack.sh
@@ -5,22 +5,25 @@
 # Installation
 #    $ curl -s https://gist.github.com/andkirby/67a774513215d7ba06384186dd441d9e/raw --output slack.sh
 ####################################################################################
+# USAGE
 # Send message to slack channel/user
-# Usage:
-#  Send a message to channel #ch-01
-#    $ bash slack.sh '#ch-01' 'Some message here.'
+#   Send a message to the channel #ch-01
+#     $ bash slack.sh '#ch-01' 'Some message here.'
 #
-#  Send a message to channel #ch-01 and user @me.
-#    $ bash slack.sh '#ch-01,@me' MESSAGE
+#   Send a message to the channel #ch-01 and user @me.
+#     $ bash slack.sh '#ch-01,@me' MESSAGE
 #
-#  Send a message to the default channel (it must be declared in APP_SLACK_CHANNEL).
-#    $ bash slack.sh MESSAGE
+#   Send a message to the default channel (it must be declared in APP_SLACK_CHANNEL).
+#     $ bash slack.sh MESSAGE
+#
+# VARIABLES
 #
 # Please declare environment variables:
 #   - APP_SLACK_WEBHOOK
 #   - APP_SLACK_CHANNEL (optional)
 #   - APP_SLACK_USERNAME (optional)
 #   - APP_SLACK_ICON_EMOJI (optional)
+# You may also declare them in ~/.slackrc file.
 ####################################################################################
 
 set -o pipefail

diff --git a/slack.sh b/slack.sh
@@ -83,8 +83,8 @@ slack() {
 
   cd ${__dir}
 
-  if [ -f $(cd; pwd)/.slackshrc ]; then
-    . $(cd; pwd)/.slackshrc
+  if [ -f $(cd; pwd)/.slackrc ]; then
+    . $(cd; pwd)/.slackrc
   fi
 
   declare -a slack_channels

diff --git a/slack.sh b/slack.sh
@@ -28,19 +28,6 @@ set -o errexit
 set -o nounset
 #set -o xtrace
 
-# Set magic variables for current file & dir
-__dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-readonly __dir __file
-
-cd ${__dir}
-
-if [ -f $(cd; pwd)/.slackshrc ]; then
-  . $(cd; pwd)/.slackshrc
-fi
-
-declare -a slack_channels
-
 init_params() {
   # you may declare ENV vars in /etc/profile.d/slack.sh
   if [ -z "${APP_SLACK_WEBHOOK:-}" ]; then
@@ -89,6 +76,19 @@ send_message_to_channels() {
 }
 
 slack() {
+  # Set magic variables for current file & dir
+  __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+  __file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
+  readonly __dir __file
+
+  cd ${__dir}
+
+  if [ -f $(cd; pwd)/.slackshrc ]; then
+    . $(cd; pwd)/.slackshrc
+  fi
+
+  declare -a slack_channels
+
   init_params ${@}
   send_message_to_channels
 }

diff --git a/slack.sh b/slack.sh
@@ -88,8 +88,17 @@ send_message_to_channels() {
   done
 }
 
-init_params ${@}
-send_message_to_channels
+slack() {
+  init_params ${@}
+  send_message_to_channels
+}
+
+if [ "${BASH_SOURCE[0]:-}" != "${0}" ]; then
+  export -f slack
+else
+  slack ${@}
+  exit $?
+fi
 
 
 
diff --git a/slack.sh b/slack.sh
@@ -1,5 +1,9 @@
 #!/usr/bin/env bash
-
+####################################################################################
+# Slack Bash console script for sending messages.
+####################################################################################
+# Installation
+#    $ curl -s https://gist.github.com/andkirby/67a774513215d7ba06384186dd441d9e/raw --output slack.sh
 ####################################################################################
 # Send message to slack channel/user
 # Usage:

diff --git a/slack.sh b/slack.sh
@@ -9,7 +9,7 @@
 #  Send a message to channel #ch-01 and user @me.
 #    $ bash slack.sh '#ch-01,@me' MESSAGE
 #
-#  Send a message to the default channel.
+#  Send a message to the default channel (it must be declared in APP_SLACK_CHANNEL).
 #    $ bash slack.sh MESSAGE
 #
 # Please declare environment variables:

diff --git a/slack.sh b/slack.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 ####################################################################################
-# Notify about deployment to slack channel
+# Send message to slack channel/user
 # Usage:
 #  Send a message to channel #ch-01
 #    $ bash slack.sh '#ch-01' 'Some message here.'

diff --git a/slack.sh b/slack.sh
@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+
+####################################################################################
+# Notify about deployment to slack channel
+# Usage:
+#  Send a message to channel #ch-01
+#    $ bash slack.sh '#ch-01' 'Some message here.'
+#
+#  Send a message to channel #ch-01 and user @me.
+#    $ bash slack.sh '#ch-01,@me' MESSAGE
+#
+#  Send a message to the default channel.
+#    $ bash slack.sh MESSAGE
+#
+# Please declare environment variables:
+#   - APP_SLACK_WEBHOOK
+#   - APP_SLACK_CHANNEL (optional)
+#   - APP_SLACK_USERNAME (optional)
+#   - APP_SLACK_ICON_EMOJI (optional)
+####################################################################################
+
+set -o pipefail
+set -o errexit
+set -o nounset
+#set -o xtrace
+
+# Set magic variables for current file & dir
+__dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
+readonly __dir __file
+
+cd ${__dir}
+
+if [ -f $(cd; pwd)/.slackshrc ]; then
+  . $(cd; pwd)/.slackshrc
+fi
+
+declare -a slack_channels
+
+init_params() {
+  # you may declare ENV vars in /etc/profile.d/slack.sh
+  if [ -z "${APP_SLACK_WEBHOOK:-}" ]; then
+    echo 'error: Please configure Slack environment variable: ' > /dev/stderr
+    echo '  APP_SLACK_WEBHOOK' > /dev/stderr
+    exit 2
+  fi
+
+  APP_SLACK_USERNAME=${APP_SLACK_USERNAME:-$(hostname | cut --delimiter=. --fields=1)}
+  APP_SLACK_ICON_EMOJI=${APP_SLACK_ICON_EMOJI:-:slack:}
+  if [ -z "${1:-}" ]; then
+    echo 'error: Missed required arguments.' > /dev/stderr
+    echo 'note: Please follow this example:' > /dev/stderr
+    echo '  $ slack.sh "#CHANNEL1,CHANNEL2" Some message here. ' > /dev/stderr
+    exit 3
+  fi
+
+  slack_channels=(${APP_SLACK_CHANNEL:-})
+  if [ "${1::1}" == '#' ] || [ "${1::1}" == '@' ]; then
+    # explode by comma
+    IFS=',' read -r -a slack_channels <<< "${1}"
+    shift
+  fi
+  slack_message=${@}
+}
+
+
+send_message() {
+  local channel=${1}
+  echo 'Sending to '${channel}'...'
+  curl --silent --data-urlencode \
+    "$(printf 'payload={"text": "%s", "channel": "%s", "username": "%s", "as_user": "true", "link_names": "true", "icon_emoji": "%s" }' \
+        "${slack_message}" \
+        "${channel}" \
+        "${APP_SLACK_USERNAME}" \
+        "${APP_SLACK_ICON_EMOJI}" \
+    )" \
+    ${APP_SLACK_WEBHOOK} || true
+  echo
+}
+
+send_message_to_channels() {
+  for channel in "${slack_channels[@]:-}"; do
+    send_message "${channel}"
+  done
+}
+
+init_params ${@}
+send_message_to_channels
+
+
+