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on mkdir failing with a particular errno value (EEXIST).
Based on a patch by Dmitry V. Levin.
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more robust, e.g., when the final component is created as a non-
directory by another process just before `mkdir -p's final mkdir.
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directory but exit nonzero with a diagnostic. This could also be
triggered with a non-`.' component, e.g., in a race with another
process running the same `mkdir -p nonexistent/sub' command.
(make_dir_parents): Handle the case of an existing final component.
Reported by Matthias Andree here:
http://savannah.gnu.org/bugs/?func=detailitem&item_id=14848
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intermediate directory is in a read-only file system.
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(make_dir_parents): Treat ENOSYS like EEXIST.
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Use the variable name instead.
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stop us from restricting permissions of just-created absolute-named
directories.
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(make_dir_parents): Last arg is now int * (for errno), not bool *.
Rewrite "mkdir -p" algorithm to avoid the need for "stat"
each time through the loop. Do not diagnose restore_cwd failure;
that is the caller's job (and perhaps the caller does not care).
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(make_dir_parents): Revamp to avoid need for CLEANUP_CWD, CLEANUP.
If the file already exists but is not a directory, don't bother
to try to make its parents.
Close potential file descriptor leak if we can't chdir("/") (!).
Don't always return true if chdir($PWD) fails; return true only
if the requested action was done successfully (except for the
chdir($PWD)).
Don't log final directory unless we actually made it.
Refactor to avoid duplicate code to fix up permissions.
Don't attempt to fix up parent permissions if chdir($PWD) fails.
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to restore initial working directory.
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to tell caller if/when we change the working directory and are
unable to return to the initial one.
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This fixes a bug introduced on 2004-07-30.
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(make_dir_parents): Renamed from make_path. All callers changed.
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