shell_commands should fail immediately if one of the commands fails#957
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philwo merged 1 commit intobazelbuild:masterfrom Mar 17, 2020
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shell_commands should fail immediately if one of the commands fails#957philwo merged 1 commit intobazelbuild:masterfrom
philwo merged 1 commit intobazelbuild:masterfrom
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It seems that shell_commands are joined with newlines and then run in a single subprocess.run call, in which case the return value is that of the last command- any failures in previous commands are ignored. Users probably expect such failures to cause the entire build to fail. Changing this behaviour feels like the right thing to do, even though it may cause some projects to fail CI until the corresponding errors are fixed. By prepending "set -e" to the shell commands, the shell will exit immediately with an error code when a command fails (apart from some special cases like if conditions or commands followed by ||). This might fix bazelbuild#938 for linux/mac.
mostynb
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This may not be needed if this bazelci PR lands: bazelbuild/continuous-integration#957
ola-rozenfeld
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* presubmit: shell_commands should exit if any command fails This may not be needed if this bazelci PR lands: bazelbuild/continuous-integration#957 * presubmit: use consistent indentation
philwo
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Thanks! Seems reasonable to me.
philwo
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This was made the default in bazelbuild/continuous-integration#957.
ifoox
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This was made the default in bazelbuild/continuous-integration#957.
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…d#127) * presubmit: shell_commands should exit if any command fails This may not be needed if this bazelci PR lands: bazelbuild/continuous-integration#957 * presubmit: use consistent indentation
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This was made the default in bazelbuild/continuous-integration#957.
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It seems that shell_commands are joined with newlines and then run in a single subprocess.run call, in which case the return value is that of the last command- any failures in previous commands are ignored.
Users probably expect such failures to cause the entire build to fail. Changing this behaviour feels like the right thing to do, even though it may cause some projects to fail CI until the corresponding errors are fixed.
By prepending "set -e" to the shell commands, the shell will exit immediately with an error code when a command fails (apart from some special cases like if conditions or commands followed by ||).
This might fix #938 for linux/mac.