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Copy pathstatus_subcommand.cpp
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683 lines (621 loc) · 20.7 KB
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#include "status_subcommand.hpp"
#include <algorithm>
#include <iostream>
#include <ostream>
#include <set>
#include <string>
#include <unordered_map>
#include <git2.h>
#include <termcolor/termcolor.hpp>
status_subcommand::status_subcommand(const libgit2_object&, CLI::App& app)
{
auto* sub = app.add_subcommand(
"status",
"Show modified files in working directory, staged for your next commit"
);
sub->add_flag("-s,--short", m_options.m_short_flag, "Give the output in the short-format.");
sub->add_flag("--long", m_options.m_long_flag, "Give the output in the long-format. This is the default.");
// sub->add_flag("--porcelain[=<version>]", porcelain, "Give the output in an easy-to-parse format for
// scripts.
// This is similar to the short output, but will remain stable across Git versions and regardless of
// user configuration. See below for details. The version parameter is used to specify the format
// version. This is optional and defaults to the original version v1 format.");
sub->add_flag("-b,--branch", m_options.m_branch_flag, "Show the branch and tracking info even in short-format.");
sub->callback(
[this]()
{
this->run();
}
);
};
namespace
{
const std::string
untracked_header = "Untracked files:\n (use \"git add <file>...\" to include in what will be committed)\n";
const std::string tobecommited_header = "Changes to be committed:\n (use \"git reset HEAD <file>...\" to unstage)\n";
const std::string
ignored_header = "Ignored files:\n (use \"git add -f <file>...\" to include in what will be committed)\n";
const std::string
notstagged_header = "Changes not staged for commit:\n (use \"git add <file>...\" to update what will be committed)\n";
// TODO: add the following ot notstagged_header after "checkout <file>" is implemented: (use \"git
// checkout -- <file>...\" to discard changes in working directory)\n";
const std::string unmerged_header = "Unmerged paths:\n (use \"git add <file>...\" to mark resolution)\n";
const std::string nothingtocommit_message = "no changes added to commit (use \"git add\" and/or \"git commit -a\")";
const std::string treeclean_message = "Nothing to commit, working tree clean";
enum class output_format
{
DEFAULT = 0,
LONG = 1,
SHORT = 2
};
struct print_entry
{
std::string status;
std::string item;
};
struct combined_entry
{
git_status_t index_status = GIT_STATUS_CURRENT;
git_status_t workdir_status = GIT_STATUS_CURRENT;
std::string item;
};
std::string get_print_status(git_status_t status, bool is_long)
{
std::string entry_status;
if (is_long)
{
entry_status = get_status_msg(status).long_mod;
}
else
{
entry_status = get_status_msg(status).short_mod;
}
return entry_status;
}
char short_char_from_status(git_status_t status)
{
switch (status)
{
case GIT_STATUS_INDEX_NEW:
case GIT_STATUS_WT_NEW:
return 'A';
case GIT_STATUS_INDEX_MODIFIED:
case GIT_STATUS_WT_MODIFIED:
return 'M';
case GIT_STATUS_INDEX_DELETED:
case GIT_STATUS_WT_DELETED:
return 'D';
case GIT_STATUS_INDEX_RENAMED:
case GIT_STATUS_WT_RENAMED:
return 'R';
case GIT_STATUS_INDEX_TYPECHANGE:
case GIT_STATUS_WT_TYPECHANGE:
return 'T';
default:
return ' ';
}
}
void update_tracked_dir_set(const char* path, std::set<std::string>* tracked_dir_set = nullptr)
{
if (tracked_dir_set)
{
const size_t first_slash_idx = std::string_view(path).find('/');
if (std::string::npos != first_slash_idx)
{
auto directory = std::string_view(path).substr(0, first_slash_idx);
tracked_dir_set->insert(std::string(directory));
}
}
}
std::string get_print_item(const char* old_path, const char* new_path)
{
std::string entry_item;
if (old_path && new_path && std::strcmp(old_path, new_path))
{
entry_item = std::string(old_path) + " -> " + std::string(new_path);
}
else
{
entry_item = old_path ? old_path : new_path;
}
return entry_item;
}
std::unordered_map<std::string, combined_entry>
build_combined_status_map(status_list_wrapper& sl, std::set<std::string>& tracked_dir_set)
{
std::unordered_map<std::string, combined_entry> combined;
auto update_status_map =
[&sl, &tracked_dir_set, &combined](const git_status_t(&status_array)[5], bool index)
{
for (git_status_t status : status_array)
{
const auto& list = sl.get_entry_list(status);
for (auto* entry : list)
{
git_diff_delta* dd = index ? entry->head_to_index : entry->index_to_workdir;
const char* old_path = dd->old_file.path;
const char* new_path = dd->new_file.path;
update_tracked_dir_set(old_path, &tracked_dir_set);
std::string item = get_print_item(old_path, new_path);
auto& ce = combined[item];
ce.item = item;
if (index)
{
ce.index_status = status;
}
else
{
ce.workdir_status = status;
}
}
}
};
const git_status_t index_statuses[] = {
GIT_STATUS_INDEX_NEW,
GIT_STATUS_INDEX_MODIFIED,
GIT_STATUS_INDEX_DELETED,
GIT_STATUS_INDEX_RENAMED,
GIT_STATUS_INDEX_TYPECHANGE
};
update_status_map(index_statuses, true);
const git_status_t worktree_statuses[] = {
GIT_STATUS_WT_NEW,
GIT_STATUS_WT_MODIFIED,
GIT_STATUS_WT_DELETED,
GIT_STATUS_WT_TYPECHANGE,
GIT_STATUS_WT_RENAMED
};
update_status_map(worktree_statuses, false);
return combined;
}
void
print_combined_short(const std::unordered_map<std::string, combined_entry>& entries_map, bool is_coloured)
{
std::vector<std::string> keys;
keys.reserve(entries_map.size());
for (const auto& kv : entries_map)
{
keys.push_back(kv.first);
}
std::sort(keys.begin(), keys.end());
struct normal_row
{
char idx;
char wt;
std::string item;
};
std::vector<normal_row> normal_rows;
std::vector<std::string> untracked_items;
std::vector<std::string> ignored_items;
for (const auto& k : keys)
{
const auto& ce = entries_map.at(k);
// Collect special cases to print last (untracked, ignored) only when not staged.
if ((ce.workdir_status & GIT_STATUS_WT_NEW) && ce.index_status == 0)
{
untracked_items.push_back(ce.item);
continue;
}
if ((ce.workdir_status & GIT_STATUS_IGNORED || ce.index_status & GIT_STATUS_IGNORED)
&& ce.index_status == 0)
{
ignored_items.push_back(ce.item);
continue;
}
// Regular two-column entry (may include index or worktree or both)
char idx = short_char_from_status(ce.index_status);
char wt = short_char_from_status(ce.workdir_status);
normal_rows.push_back({idx, wt, ce.item});
}
for (const auto& r : normal_rows)
{
if (is_coloured)
{
std::cout << termcolor::green << r.idx << termcolor::reset;
std::cout << termcolor::red << r.wt << termcolor::reset;
std::cout << " " << r.item << std::endl;
}
else
{
std::cout << r.idx << r.wt << " " << r.item << std::endl;
}
}
stream_colour_fn colour;
if (is_coloured)
{
colour = termcolor::red;
}
else
{
colour = termcolor::bright_white;
}
std::sort(untracked_items.begin(), untracked_items.end());
for (const auto& it : untracked_items)
{
std::cout << colour << "?? " << termcolor::reset << it << std::endl;
}
std::sort(ignored_items.begin(), ignored_items.end());
for (const auto& it : ignored_items)
{
std::cout << colour << "!! " << termcolor::reset << it << std::endl;
}
}
std::vector<print_entry> get_entries_to_print(
git_status_t status,
status_list_wrapper& sl,
bool head_selector,
bool is_long,
std::set<std::string>* tracked_dir_set = nullptr
)
{
std::vector<print_entry> entries_to_print{};
const auto& entry_list = sl.get_entry_list(status);
if (entry_list.empty())
{
return entries_to_print;
}
for (auto* entry : entry_list)
{
git_diff_delta* diff_delta = head_selector ? entry->head_to_index : entry->index_to_workdir;
const char* old_path = diff_delta->old_file.path;
const char* new_path = diff_delta->new_file.path;
update_tracked_dir_set(old_path, tracked_dir_set);
print_entry e = {get_print_status(status, is_long), get_print_item(old_path, new_path)};
entries_to_print.push_back(std::move(e));
}
return entries_to_print;
}
void print_entries(std::vector<print_entry> entries_to_print, bool is_long, stream_colour_fn colour)
{
for (const auto& e : entries_to_print)
{
if (is_long)
{
std::cout << colour << e.status << e.item << termcolor::reset << std::endl;
}
else
{
std::cout << colour << e.status << termcolor::reset << e.item << std::endl;
}
}
}
void print_not_tracked(
const std::vector<print_entry>& entries_to_print,
const std::set<std::string>& tracked_dir_set,
std::set<std::string>& untracked_dir_set,
bool is_long,
stream_colour_fn colour
)
{
std::vector<print_entry> not_tracked_entries_to_print{};
for (const auto& e : entries_to_print)
{
const size_t first_slash_idx = e.item.find('/');
if (std::string::npos != first_slash_idx)
{
auto directory = e.item.substr(0, first_slash_idx) + "/";
if (tracked_dir_set.contains(directory))
{
not_tracked_entries_to_print.push_back(e);
}
else
{
if (!untracked_dir_set.contains(directory))
{
not_tracked_entries_to_print.push_back({e.status, directory});
untracked_dir_set.insert(std::string(directory));
}
}
}
else
{
not_tracked_entries_to_print.push_back(e);
}
}
print_entries(not_tracked_entries_to_print, is_long, colour);
}
}
void print_tracking_info(repository_wrapper& repo, status_list_wrapper& sl, bool is_long, bool branch_flag)
{
auto tracking_info = repo.get_tracking_info();
if (is_long)
{
if (tracking_info.has_upstream)
{
if (tracking_info.ahead > 0 && tracking_info.behind == 0)
{
std::cout << "Your branch is ahead of '" << tracking_info.upstream_name << "' by "
<< tracking_info.ahead << " commit" << (tracking_info.ahead > 1 ? "s" : "") << "."
<< std::endl;
std::cout << " (use \"git push\" to publish your local commits)" << std::endl;
}
else if (tracking_info.ahead == 0 && tracking_info.behind > 0)
{
std::cout << "Your branch is behind '" << tracking_info.upstream_name << "' by "
<< tracking_info.behind << " commit" << (tracking_info.behind > 1 ? "s" : "") << "."
<< std::endl;
std::cout << " (use \"git pull\" to update your local branch)" << std::endl;
}
else if (tracking_info.ahead > 0 && tracking_info.behind > 0)
{
std::cout << "Your branch and '" << tracking_info.upstream_name << "' have diverged,"
<< std::endl;
std::cout << "and have " << tracking_info.ahead << " and " << tracking_info.behind
<< " different commit"
<< ((tracking_info.ahead + tracking_info.behind) > 2 ? "s" : "")
<< " each, respectively." << std::endl;
std::cout << " (use \"git pull\" to merge the remote branch into yours)" << std::endl;
}
else // ahead == 0 && behind == 0
{
std::cout << "Your branch is up to date with '" << tracking_info.upstream_name << "'."
<< std::endl;
}
std::cout << std::endl;
}
if (repo.is_head_unborn())
{
std::cout << "No commit yet\n" << std::endl;
}
if (sl.has_unmerged_header())
{
std::cout << "You have unmerged paths.\n (fix conflicts and run \"git commit\")\n (use \"git merge --abort\" to abort the merge)\n"
<< std::endl;
}
}
else if (branch_flag)
{
if (tracking_info.has_upstream)
{
std::cout << "..." << termcolor::red << tracking_info.upstream_name << termcolor::reset;
if (tracking_info.ahead > 0 || tracking_info.behind > 0)
{
std::cout << " [";
if (tracking_info.ahead > 0)
{
std::cout << "ahead " << termcolor::green << tracking_info.ahead << termcolor::reset;
}
if (tracking_info.behind > 0)
{
if (tracking_info.ahead > 0)
{
std::cout << ", ";
}
std::cout << "behind " << termcolor::red << tracking_info.behind << termcolor::reset;
}
std::cout << "]";
}
std::cout << std::endl;
}
}
}
void print_tobecommited(status_list_wrapper& sl, std::set<std::string> tracked_dir_set, bool is_long, bool is_coloured)
{
stream_colour_fn colour;
if (is_coloured)
{
colour = termcolor::green;
}
else
{
colour = termcolor::bright_white;
}
if (is_long)
{
std::cout << tobecommited_header;
}
print_entries(get_entries_to_print(GIT_STATUS_INDEX_NEW, sl, true, is_long, &tracked_dir_set), is_long, colour);
print_entries(
get_entries_to_print(GIT_STATUS_INDEX_MODIFIED, sl, true, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_INDEX_DELETED, sl, true, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_INDEX_RENAMED, sl, true, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_INDEX_TYPECHANGE, sl, true, is_long, &tracked_dir_set),
is_long,
colour
);
if (is_long)
{
std::cout << std::endl;
}
}
void print_notstagged(status_list_wrapper& sl, std::set<std::string> tracked_dir_set, bool is_long, bool is_coloured)
{
stream_colour_fn colour;
if (is_coloured)
{
colour = termcolor::red;
}
else
{
colour = termcolor::bright_white;
}
if (is_long)
{
std::cout << notstagged_header;
}
print_entries(
get_entries_to_print(GIT_STATUS_WT_MODIFIED, sl, false, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_WT_DELETED, sl, false, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_WT_TYPECHANGE, sl, false, is_long, &tracked_dir_set),
is_long,
colour
);
print_entries(
get_entries_to_print(GIT_STATUS_WT_RENAMED, sl, false, is_long, &tracked_dir_set),
is_long,
colour
);
if (is_long)
{
std::cout << std::endl;
}
}
void print_unmerged(
status_list_wrapper& sl,
std::set<std::string> tracked_dir_set,
std::set<std::string> untracked_dir_set,
bool is_long,
bool is_coloured
)
{
stream_colour_fn colour;
if (is_coloured)
{
colour = termcolor::red;
}
else
{
colour = termcolor::bright_white;
}
if (is_long)
{
std::cout << unmerged_header;
}
print_not_tracked(
get_entries_to_print(GIT_STATUS_CONFLICTED, sl, false, is_long),
tracked_dir_set,
untracked_dir_set,
is_long,
colour
);
if (is_long)
{
std::cout << std::endl;
}
}
void print_untracked(
status_list_wrapper& sl,
std::set<std::string> tracked_dir_set,
std::set<std::string> untracked_dir_set,
bool is_long,
bool is_coloured
)
{
stream_colour_fn colour;
if (is_coloured)
{
colour = termcolor::red;
}
else
{
colour = termcolor::bright_white;
}
if (is_long)
{
std::cout << untracked_header;
}
print_not_tracked(
get_entries_to_print(GIT_STATUS_WT_NEW, sl, false, is_long),
tracked_dir_set,
untracked_dir_set,
is_long,
colour
);
if (is_long)
{
std::cout << std::endl;
}
}
void status_subcommand::run()
{
status_run(m_options);
}
void status_run(status_subcommand_options options)
{
auto directory = get_current_git_path();
auto repo = repository_wrapper::open(directory);
auto sl = status_list_wrapper::status_list(repo);
std::set<std::string> tracked_dir_set{};
std::set<std::string> untracked_dir_set{};
std::vector<std::string> untracked_to_print{};
std::vector<std::string> ignored_to_print{};
output_format of = output_format::DEFAULT;
if (options.m_short_flag)
{
of = output_format::SHORT;
}
if (options.m_long_flag)
{
of = output_format::LONG;
}
// else if (porcelain_format)
// {
// output_format = 3;
// }
bool is_long;
is_long = ((of == output_format::DEFAULT) || (of == output_format::LONG));
auto branch_name = repo.head_short_name();
bool is_coloured = true;
bool branch_flag = options.m_branch_flag;
if (is_long)
{
std::cout << "On branch " << branch_name << std::endl;
}
else if (branch_flag)
{
if (is_coloured)
{
std::cout << "## " << termcolor::green << branch_name << termcolor::reset;
}
else
{
std::cout << "## " << branch_name;
}
}
print_tracking_info(repo, sl, is_long, branch_flag);
if (of == output_format::SHORT)
{
auto combined = build_combined_status_map(sl, tracked_dir_set);
print_combined_short(combined, is_coloured);
return;
}
if (sl.has_tobecommited_header())
{
print_tobecommited(sl, tracked_dir_set, is_long, is_coloured);
}
if (sl.has_unmerged_header())
{
print_unmerged(sl, tracked_dir_set, untracked_dir_set, is_long, is_coloured);
}
if (sl.has_notstagged_header())
{
print_notstagged(sl, tracked_dir_set, is_long, is_coloured);
}
if (sl.has_untracked_header())
{
print_untracked(sl, tracked_dir_set, untracked_dir_set, is_long, is_coloured);
}
// TODO: check if this message should be displayed even if there are untracked files
if (is_long
&& !(
sl.has_tobecommited_header() || sl.has_notstagged_header() || sl.has_unmerged_header()
|| sl.has_untracked_header()
))
{
std::cout << treeclean_message << std::endl;
}
if (is_long & !sl.has_tobecommited_header() && (sl.has_notstagged_header() || sl.has_untracked_header()))
{
std::cout << nothingtocommit_message << std::endl;
}
}