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Print OS error when ":write -force" fails to change permissions

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When the file system runs out of space, "write -force" will fail but
doesn't print "No space left on device".
Let's fix this by including such an underlying error. Untested.

Backstory: I alias "w" to a command that runs "write -force %arg{@}".
so I can overwrite files that already exist outside the editor (I
should probably get used to the new behavior).
This commit is contained in:
Johannes Altmanninger 2022-11-06 12:11:06 +01:00
parent 91d45a100a
commit a5f684737f
1 changed files with 2 additions and 2 deletions
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4
src/file.cc
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@ -345,11 +345,11 @@ void write_buffer_to_file(Buffer& buffer, StringView filename,
} }
if (force and ::chmod(zfilename, st.st_mode | S_IWUSR) < 0) if (force and ::chmod(zfilename, st.st_mode | S_IWUSR) < 0)
throw runtime_error("unable to change file permissions"); throw runtime_error(format("unable to change file permissions: {}", strerror(errno)));
auto restore_mode = on_scope_end([&]{ auto restore_mode = on_scope_end([&]{
if ((force or replace) and ::chmod(zfilename, st.st_mode) < 0) if ((force or replace) and ::chmod(zfilename, st.st_mode) < 0)
throw runtime_error("unable to restore file permissions"); throw runtime_error(format("unable to restore file permissions: {}", strerror(errno)));
}); });
char temp_filename[PATH_MAX]; char temp_filename[PATH_MAX];