Add command and args to execvp error message#7511
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straight-shoota merged 1 commit intocrystal-lang:masterfrom Mar 12, 2019
Merged
Add command and args to execvp error message#7511straight-shoota merged 1 commit intocrystal-lang:masterfrom
straight-shoota merged 1 commit intocrystal-lang:masterfrom
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bcardiff
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Mar 5, 2019
sdogruyol
approved these changes
Mar 5, 2019
yxhuvud
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Mar 5, 2019
| # FIXME: Oddly doubled error message | ||
| expect_raises_errno(Errno::ENOENT, "execvp: No such file or directory: No such file or directory") do | ||
| Process.new("foobarbaz") | ||
| expect_raises_errno(Errno::ENOENT, %(execvp (foobarbaz "foo"): No such file or directory: No such file or directory)) do |
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Does the printed command need a length restriction? If it has many arguments, then there could be some issues with the usability.
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Restricting the length could also have usability implications. The best solution would be to change the order and print the failed command after the libc error message. Errno doesn't support that though.
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* 'master' of github.com:crystal-lang/crystal: Change the font-weight used in Playground (crystal-lang#7552) Fix formatting absolute paths (crystal-lang#7560) Refactor IO::Syscall as IO::Evented (crystal-lang#7505) YAML: fix test checking serialization of slices for libyaml 0.2.2 (crystal-lang#7555) Let Array#sort only use `<=>`, and let `<=>` return `nil` for partial comparability (crystal-lang#6611) Update `to_s` and `inspect` to have similar signatures accross the stdlib (crystal-lang#7528) Fix restriction of valid type vs free vars (crystal-lang#7536) Rewrite macro spec without executing a shell command (crystal-lang#6962) Suggest `next` when trying to break from captured block (crystal-lang#7406) Fix GenericClassType vs GenericClassInstanceType restrictions (crystal-lang#7537) Add human readable formatting for numbers (crystal-lang#6314) Add command and args to execvp error message (crystal-lang#7511) Implement Set#add? method (crystal-lang#7495)
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When
LibC.execvpfails, it would previously raise anErrnowith messageexecvpfollowed by the reason of failure (for exampleNo such file or directory). But that's not a great help for debugging, unless you know which command was to be executed.This PR adds the command and it's arguments to the error message. I'm not sure if the arguments are really necessary.
Related to #7508