diff options
| author | Xavier Noria <fxn@hashref.com> | 2010-02-07 22:01:54 +0100 |
|---|---|---|
| committer | Xavier Noria <fxn@hashref.com> | 2010-02-07 22:01:54 +0100 |
| commit | d91ac89ab83735ad1149907e942c2b0d67e03a56 (patch) | |
| tree | 95de6489a471e5e07f2dab2d2df82d2eca2ff328 /railties/guides/source/active_support_core_extensions.textile | |
| parent | 81e779a0191c824f3e4c0df23736bdadb052ac7c (diff) | |
| download | rails-d91ac89ab83735ad1149907e942c2b0d67e03a56.tar.gz rails-d91ac89ab83735ad1149907e942c2b0d67e03a56.tar.bz2 rails-d91ac89ab83735ad1149907e942c2b0d67e03a56.zip | |
AS guide: specifies that renaming a file is atomic on POSIX systems
Diffstat (limited to 'railties/guides/source/active_support_core_extensions.textile')
| -rw-r--r-- | railties/guides/source/active_support_core_extensions.textile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/railties/guides/source/active_support_core_extensions.textile b/railties/guides/source/active_support_core_extensions.textile index 4f7c0c56e2..2d05e66307 100644 --- a/railties/guides/source/active_support_core_extensions.textile +++ b/railties/guides/source/active_support_core_extensions.textile @@ -2118,7 +2118,7 @@ File.atomic_write(joined_asset_path) do |cache| end </ruby> -To accomplish this +atomic_write+ creates a temporary file. That's the file the code in the block actually writes to. On completion, the temporary file is renamed. If the target file exists +atomic_write+ overwrites it and keeps owners and permissions. +To accomplish this +atomic_write+ creates a temporary file. That's the file the code in the block actually writes to. On completion, the temporary file is renamed, which is an atomic operation on POSIX systems. If the target file exists +atomic_write+ overwrites it and keeps owners and permissions. WARNING. Note you can't append with +atomic_write+. |