34 lines
1.4 KiB
Plaintext
34 lines
1.4 KiB
Plaintext
- Use https://yaml-online-parser.appspot.com/ to make sure the yaml file is valid.
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https://lint.travis-ci.org/ is recommended elsewhere but does not give helpful
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error reports.
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- Make sure all of your "-" lines start on the same column
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- Use bash scripts for `before_install` and `script` or any part that
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has conditional statements
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- Make sure they are "executable" (chmod +x)
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- Use the following header to enable some local flags:
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```bash
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#!/usr/bin/env bash
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set -ev
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```
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- Use the following footer to turn off the flags after the script:
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```
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set +ev
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```
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- The `-e` flag ensures that the script exits on non-zero exit from a command.
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- The `-v` flag will print out the command as it is read.
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- The `-x` flag will print out the expanded parsed command, as well as the PS4.
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which can be quite verbose. Use this when debugging.
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- Use the `retry` bash function from `before_install.sh` before a command to
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have it try 3 times before failing.
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- Use `pip install --retries N` for retrying package downloads.
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- Use the `section` function to start a folded section of the script.
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Section names must have underscores or dots instead of spaces and must be
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accompanied by a corresponding `section_end` call.
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- Feel free to cancel a build rather than waiting for it to go to completion
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if you have made a change to that branch.
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- A VM with 64bit Ubuntu 14.04 is a huge help for debugging.
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