adjusted readme, setup ci

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+# Official language image. Look for the different tagged releases at:
+# https://hub.docker.com/r/library/python/tags/
+image: python:2-slim
+
+# Change pip's cache directory to be inside the project directory since we can
+# only cache local items.
+variables:
+  PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+
+# Pip's cache doesn't store the python packages
+# https://pip.pypa.io/en/stable/reference/pip_install/#caching
+#
+# If you want to also cache the installed packages, you have to install
+# them in a virtualenv and cache it as well.
+cache:
+  paths:
+    - .cache/pip
+    - venv/
+
+before_script:
+  - python -V  # Print out python version for debugging
+  - pip install virtualenv
+  - virtualenv venv
+  - source venv/bin/activate
+
+test:
+  script:
+    - python test/wait-for-it.py

.travis.yml

-language: python
-python:
-  - "2.7"
-
-script:
-  - python test/wait-for-it.py
-

CHANGELOG.adoc

+= Changelog
+
+== feature/PureShellifyScript
+* fixed busybox >=1.30 behavior with timeout command (4969156)
+
+
+* replaced bash specifics with shell compatible commands (9bd77e1)
+
+
+* Merge branch 'fwoelffel-master' (54d1f0b)
+
+
+* Merge branch 'master' of https://github.com/fwoelffel/wait-for-it into fwoelffel-master (9995b72)
+
+
+* Merge pull request #60 from aviau/patch-1 (4dd67a6)
+
+
+* Merge branch 'scop-deps' (4d0a46b)
+
+
+* README: community section + mention Debian package (e34c502)
+
+
+* Fall back to readlink -f if realpath is not available or fails (019f3bb)
+
+
+* Use parameter expansion instead of basename (5fe30e7)
+
+
+* Use type -p instead of which (f9a0dc4)
+
+
+* Add a WAITFORIT_ prefix in front of all variables (410d77e)
+
+
+* Merge pull request #40 from szczad/master (db04971)
+
+
+* fix: preserve quotation when passing arguments to command. (8ed92e8)
+
+
+* Merge pull request #6 from iturgeon/master (8b4051d)
+
+
+* Merge pull request #32 from douglas-gibbons/master (a2acebe)
+
+
+* Fixes to test script for flake8 (8ed81e3)
+
+
+* Update to README.md (b638c19)
+
+
+* Tidy up of vars in tests (f9b79b2)
+
+
+* Modified error output for 'ls' command to cope with different test environments (1374528)
+
+
+* Added some real tests (4fd1b45)
+
+
+* Start of test framework (13c00e3)
+
+
+* Start of test framework (7f645ce)
+
+
+* Update README.md (ac37241)
+
+
+* Update README.md (409b4a7)
+
+
+* Update README.md (209be48)
+
+
+* readme update (e686775)
+
+
+* Update README.md (e1f115e)
+
+
+* Update README.md (1f3eb2c)
+
+
+* Update README.md (11afe7b)
+
+
+* Adds support for distros that use busybox like Alpine (8f52a81)
+
+
+* Merge pull request #4 from Silex/patch-1 (a454892)
+
+
+* Fix invalid use of return value (55c54a5)
+
+
+* license added (20c6094)
+
+
+* more small doc fixes (4e94d7d)
+
+
+* doc fixes (bf194c8)
+
+
+* doc fixes (a150deb)
+
+
+* small fixes (41deb2d)
+
+
+* initial commit (e559a8e)

README.md → README.adoc

-## wait-for-it
+= wait-for-it
 
-`wait-for-it.sh` is a pure bash script that will wait on the availability of a host and TCP port.  It is useful for synchronizing the spin-up of interdependent services, such as linked docker containers.  Since it is a pure bash script, it does not have any external dependencies.
+`wait-for-it.sh` is a pure sh script that will wait on the availability of a host and TCP port.
+It is useful for synchronizing the spin-up of interdependent services, such as linked docker containers.
+Since it is a pure sh script, it does not have any external dependencies.
 
-## Usage
+== Usage
 
-```
+[source, sh]
+----
 wait-for-it.sh host:port [-s] [-t timeout] [-- command args]
 -h HOST | --host=HOST       Host or IP under test
 -p PORT | --port=PORT       TCP port under test
@@ -14,40 +17,48 @@ wait-for-it.sh host:port [-s] [-t timeout] [-- command args]
 -t TIMEOUT | --timeout=TIMEOUT
                             Timeout in seconds, zero for no timeout
 -- COMMAND ARGS             Execute command with args after the test finishes
-```
+----
 
-## Examples
+== Examples
 
 For example, let's test to see if we can access port 80 on www.google.com, and if it is available, echo the message `google is up`.
 
-```
+[source, sh]
+----
 $ ./wait-for-it.sh www.google.com:80 -- echo "google is up"
 wait-for-it.sh: waiting 15 seconds for www.google.com:80
 wait-for-it.sh: www.google.com:80 is available after 0 seconds
 google is up
-```
+----
 
-You can set your own timeout with the `-t` or `--timeout=` option.  Setting the timeout value to 0 will disable the timeout:
+You can set your own timeout with the `-t` or `--timeout=` option.
+Setting the timeout value to 0 will disable the timeout:
 
-```
+[source, sh]
+----
 $ ./wait-for-it.sh -t 0 www.google.com:80 -- echo "google is up"
 wait-for-it.sh: waiting for www.google.com:80 without a timeout
 wait-for-it.sh: www.google.com:80 is available after 0 seconds
 google is up
-```
+----
 
-The subcommand will be executed regardless if the service is up or not.  If you wish to execute the subcommand only if the service is up, add the `--strict` argument. In this example, we will test port 81 on www.google.com which will fail:
+The subcommand will be executed regardless if the service is up or not.
+If you wish to execute the subcommand only if the service is up, add the `--strict` argument.
+In this example, we will test port 81 on www.google.com which will fail:
 
-```
+[source, sh]
+----
 $ ./wait-for-it.sh www.google.com:81 --timeout=1 --strict -- echo "google is up"
 wait-for-it.sh: waiting 1 seconds for www.google.com:81
 wait-for-it.sh: timeout occurred after waiting 1 seconds for www.google.com:81
 wait-for-it.sh: strict mode, refusing to execute subprocess
-```
+----
 
-If you don't want to execute a subcommand, leave off the `--` argument.  This way, you can test the exit condition of `wait-for-it.sh` in your own scripts, and determine how to proceed:
+If you don't want to execute a subcommand, leave off the `--` argument.
+This way, you can test the exit condition of `wait-for-it.sh` in your own scripts, and determine how to proceed:
 
-```
+[source, sh]
+----
 $ ./wait-for-it.sh www.google.com:80
 wait-for-it.sh: waiting 15 seconds for www.google.com:80
 wait-for-it.sh: www.google.com:80 is available after 0 seconds
@@ -58,8 +69,8 @@ wait-for-it.sh: waiting 15 seconds for www.google.com:81
 wait-for-it.sh: timeout occurred after waiting 15 seconds for www.google.com:81
 $ echo $?
 124
-```
+----
 
-## Community
+== Community
 
-*Debian*: There is a [Debian package](https://tracker.debian.org/pkg/wait-for-it).
+_Debian_: There is a https://tracker.debian.org/pkg/wait-for-it[Debian package].