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cp: Support the -R flag and add better verbose messages
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apio 2023-09-25 21:31:14 +02:00
parent eeb69c923c
commit f0844c9f69
Signed by: apio
GPG Key ID: B8A7D06E42258954
1 changed files with 57 additions and 6 deletions
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63
apps/cp.cpp
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@ -1,6 +1,7 @@
#include <luna/PathParser.h>
#include <luna/String.h>
#include <os/ArgumentParser.h>
#include <os/Directory.h>
#include <os/File.h>
#include <os/FileSystem.h>
#include <os/Prompt.h>
@ -16,10 +17,18 @@ Result<void> copy_file(StringView source, StringView destination, bool verbose,
TRY(os::FileSystem::stat(source_file->fd(), st, true));
umask(0);
if (st.st_mode & S_IFDIR)
{
os::eprintln("cp: warning: -R not specified, skipping directory %s", source.chars());
return {};
}
String path;
if (os::FileSystem::is_directory(destination, true))
{
auto basename = TRY(PathParser::basename(source));
auto path = TRY(PathParser::join_paths(destination, basename.view()));
path = TRY(PathParser::join_paths(destination, basename.view()));
if (interactive && os::FileSystem::exists(path.view(), false))
{
@ -31,15 +40,18 @@ Result<void> copy_file(StringView source, StringView destination, bool verbose,
}
else
{
if (interactive && os::FileSystem::exists(destination, false))
path = TRY(String::from_string_view(destination));
if (interactive && os::FileSystem::exists(path.view(), false))
{
auto prompt = TRY(String::format("cp: Overwrite %s with %s?"_sv, destination.chars(), source.chars()));
auto prompt = TRY(String::format("cp: Overwrite %s with %s?"_sv, path.chars(), source.chars()));
if (!os::conditional_prompt(prompt.view(), os::DefaultNo)) return {};
}
destination_file = TRY(File::open_or_create(destination, File::ReadWrite, st.st_mode & ~S_IFMT));
destination_file = TRY(File::open_or_create(path.view(), File::ReadWrite, st.st_mode & ~S_IFMT));
}
if (verbose) os::eprintln("copying %s to %s", source.chars(), destination.chars());
if (verbose) os::eprintln("copying %s to %s", source.chars(), path.chars());
auto buf = TRY(Buffer::create_sized(4096));
while (1)
@ -52,12 +64,45 @@ Result<void> copy_file(StringView source, StringView destination, bool verbose,
return {};
}
Result<void> copy_tree(StringView source, StringView destination, bool verbose, bool interactive)
{
String path;
if (!os::FileSystem::is_directory(source, true)) return copy_file(source, destination, verbose, interactive);
if (os::FileSystem::is_directory(destination, true))
{
auto basename = TRY(PathParser::basename(source));
path = TRY(PathParser::join_paths(destination, basename.view()));
if (!os::FileSystem::exists(path.view(), false)) TRY(os::FileSystem::create_directory(path.view(), 0755));
}
else
{
path = TRY(String::from_string_view(destination));
if (!os::FileSystem::exists(path.view(), false)) TRY(os::FileSystem::create_directory(path.view(), 0755));
}
auto dir = TRY(os::Directory::open(source));
Vector<String> entries = TRY(dir->list_names(os::Directory::Filter::ParentAndBase));
for (const auto& entry : entries)
{
auto subpath = TRY(PathParser::join_paths(source, entry.view()));
TRY(copy_tree(subpath.view(), path.view(), verbose, interactive));
}
return {};
}
Result<int> luna_main(int argc, char** argv)
{
Vector<StringView> files;
StringView destination;
bool verbose { false };
bool interactive { false };
bool recursive { false };
os::ArgumentParser parser;
parser.add_description("Copy files or directories."_sv);
@ -66,9 +111,15 @@ Result<int> luna_main(int argc, char** argv)
parser.add_positional_argument(destination, "destination"_sv, true);
parser.add_switch_argument(verbose, 'v', "verbose"_sv, "show more information"_sv);
parser.add_switch_argument(interactive, 'i', "interactive"_sv, "prompt before overwriting existing files"_sv);
parser.add_switch_argument(recursive, 'R', "recursive"_sv, "copy directories recursively"_sv);
TRY(parser.parse(argc, argv));
for (const auto& file : files) { TRY(copy_file(file, destination, verbose, interactive)); }
for (const auto& file : files)
{
if (recursive) TRY(copy_tree(file, destination, verbose, interactive));
else
TRY(copy_file(file, destination, verbose, interactive));
}
return 0;
}