内容简介:Bashible is a deployment/automation tool written in Bash (DSL). Inspired by Ansible. Simplifies things and prevents usual mistakes.Features:At the moment, bashible has been used on Arch linux. It may not be compatible with other platforms, because it inter
BASHIBLE
Bashible is a deployment/automation tool written in Bash (DSL). Inspired by Ansible. Simplifies things and prevents usual mistakes.
Features:
- improved readability
- unhandled failures prevention
- skipping already done tasks
- command chaining
- working directory always as expected
- variable checking
- dependencies; calling sub-scripts
- delayed tasks executed on finish
- child termination handler; no processes left running
- modules: template engine, config editing, etc.
- nice output
At the moment, bashible has been used on Arch linux. It may not be compatible with other platforms, because it internally uses GNU/sed, grep, etc.
Suggestions and bugfixes are welcome! :-)
Example output
Example script.bash
@
represents a block of tasks, -
represents a task. Both @
and -
are just bash functions with arguments.
#!/usr/local/bin/bashible # the working directory is automatically set to the script's # all tasks will stop execution immediately on failure, unless prefixed by "may_fail" @ Synchronizing files - result synced rsync -av /foo /bar @ Shutting down the machine - when synced - when test -f /etc/do-shutdown - shutdown -h now @ Sending an e-mail unless synchronization succeeded - when not synced - mail me@me.com <<< "synchronzation failed"
Rewritten into pure Bash, the example above could look like this,
#!/bin/bash cd `dirname $0` set -eux -o pipefail echo Synchronizing files if rsync -av /foo /bar; then echo Shutting down the machine if test -f /etc/do-shutdown; then shutdown -h now fi else echo Sending an e-mail unless synchronization succeeded mail me@me.com <<< "synchronzation failed" fi
See also examples in the example directory.
Install & usage
Install bashible and it's modules (sourceable functions - here just one module, "edit"). Copy everything to the same directory.
wget https://raw.githubusercontent.com/mig1984/bashible/master/bashible wget https://raw.githubusercontent.com/mig1984/bashible/master/bashible.edit chmod 755 bashible chmod 755 bashible.edit mv bashible /usr/local/bin mv bashible.edit /usr/local/bin
Run the script
bashible my-script.bash ARG1 ARG2 ...
or put she-bang in the beginning of the script and then run it directly
#!/usr/local/bin/bashible
run it
./my-script.bash ARG1 ARG2 ...
Functions
core functions
always_output_to DEST COMMAND ARGS ...
output_to DEST COMMAND ARGS ...
print_error MSG print_info MSG print_warn MSG quiet COMMAND ARGS ...
unless_already COMMAND ARGS ...
use FEATURES ...file-editing functions - found in bashible.edit module
comment_lines_matching REGEXP PATH
remove_lines_matching REGEX PATH
replace_lines_matching REGEXP STRING PATH
replace_matching REGEXP STRING PATH
uncomment_lines_matching REGEXP PATHtemplate engine - found in bashible.template module
template TEMPLATE_PATH RESULT_PATH
timeout - found in bashible.timeout module
in_timeout SECS COMMAND ARGS ...
network-oriented functions - found in bashible.net module
TODO
Write more docs and examples.
Modularize. The bashible core in the version 1.0 should contain only necessary functions and should not ever change. For instance, the delayed and unless_already COMMAND ARGS ... functions now need two temporary files. These files are created on every bashible startup. These functions should go into optional modules instead.
Create tests. Bashible uses GNU/grep, GNU/sed and other programs which may not work properly on all platforms.
Make bashible multiplatform.
Create more modules and/or integrate existing Bash libraries.
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