{"action":"opened","number":1482,"pull_request":{"url":"https://api.github.com/repos/chapel-lang/chapel/pulls/1482","id":30583224,"html_url":"https://github.com/chapel-lang/chapel/pull/1482","diff_url":"https://github.com/chapel-lang/chapel/pull/1482.diff","patch_url":"https://github.com/chapel-lang/chapel/pull/1482.patch","issue_url":"https://api.github.com/repos/chapel-lang/chapel/issues/1482","number":1482,"state":"open","locked":false,"title":"Implement copy, copyMode, and copyFile","user":{"login":"lydia-duncan","id":2454710,"avatar_url":"https://avatars.githubusercontent.com/u/2454710?v=3","gravatar_id":"","url":"https://api.github.com/users/lydia-duncan","html_url":"https://github.com/lydia-duncan","followers_url":"https://api.github.com/users/lydia-duncan/followers","following_url":"https://api.github.com/users/lydia-duncan/following{/other_user}","gists_url":"https://api.github.com/users/lydia-duncan/gists{/gist_id}","starred_url":"https://api.github.com/users/lydia-duncan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lydia-duncan/subscriptions","organizations_url":"https://api.github.com/users/lydia-duncan/orgs","repos_url":"https://api.github.com/users/lydia-duncan/repos","events_url":"https://api.github.com/users/lydia-duncan/events{/privacy}","received_events_url":"https://api.github.com/users/lydia-duncan/received_events","type":"User","site_admin":false},"body":"Implements the file utility functions copy, copyMode, and\r\ncopyFile.  copyMode copies the permissions of one file\r\nonto another file, copyFile copies the contents of one file\r\nto another file (overwriting previous contents if present\r\nand creating a new file otherwise), and copy combines both\r\nthese functions and additionally (if metadata=true) will\r\ncopy the original uid, gid, last access time, and last time of\r\nmodification from the source onto the destination.\r\n\r\nSome caveats with this implementation:\r\n\r\nTesting is not completely robust.  I have checked that things\r\nwork to my satisfaction and will add more tests when we\r\naren't trying to get as many file utilities as possible into the\r\nrelease.\r\n\r\nAlso, copy's ability to take a directory as a destination (and thus\r\nuse the source's base name as part of the destination) would\r\nbe best implemented with two file utilities that I had put off\r\ndue to their dependence on string utilities: basename and\r\njoinPath.  It seems okay to leave off this functionality for now,\r\nsince the user can accomplish it themselves and we expect\r\nstring improvements soon.\r\n\r\nThe bug discovered in #1464 has forced copyFile to include\r\na set of curly braces around the portion where it actively\r\ncopies the contents (so that error checking can occur inside\r\nit).  When those futures have been resolved, the curly braces\r\nwill be safe to 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