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annotate rust/hg-core/src/exit_codes.rs @ 49149:006688e36e12 stable

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rhg: use `Command::exec` instead of `Command::status` `rhg` is supposed to be a transparent executable, using a subprocess defeats that purpose. See inline comments for more details. This also introduces the `which` crate to check if the fallback executable actually exists to help debugging (plain `execve` doesn't give much information). The error code 253 is used to signify that the fallback is not found, but may mean in the future that it is otherwise invalid if we start being more specific. Differential Revision: https://phab.mercurial-scm.org/D12578
author Rapha?l Gom?s <rgomes@octobus.net>
date Tue, 19 Apr 2022 12:27:40 +0200
parents 6e49769b7f97
children 7c93e38a0bbd
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1 pub type ExitCode = i32;
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2
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3 /// Successful exit
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4 pub const OK: ExitCode = 0;
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5
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6 /// Generic abort
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7 pub const ABORT: ExitCode = 255;
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8
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9 // Abort when there is a config related error
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10 pub const CONFIG_ERROR_ABORT: ExitCode = 30;
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12 // Abort when there is an error while parsing config
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13 pub const CONFIG_PARSE_ERROR_ABORT: ExitCode = 10;
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14
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15 /// Generic something completed but did not succeed
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16 pub const UNSUCCESSFUL: ExitCode = 1;
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17
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18 /// Command or feature not implemented by rhg
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19 pub const UNIMPLEMENTED: ExitCode = 252;
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006688e36e12 rhg: use `Command::exec` instead of `Command::status`
Rapha?l Gom?s <rgomes@octobus.net>
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20
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21 /// The fallback path is not valid
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22 pub const INVALID_FALLBACK: ExitCode = 253;