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Execute git checkout in batches to avoid overlong argument lists

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Closes: #195
Closes: #194
Closes: #150
This commit is contained in:
Andrew Ayer
2020-01-25 10:16:20 -05:00
parent ce716b130f
commit d1fd1353f8
1 changed files with 18 additions and 2 deletions
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20
commands.cpp
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@@ -183,15 +183,19 @@ static void deconfigure_git_filters (const char* key_name)
}
}
static bool git_checkout (const std::vector<std::string>& paths)
static bool git_checkout_batch (std::vector<std::string>::const_iterator paths_begin, std::vector<std::string>::const_iterator paths_end)
{
if (paths_begin == paths_end) {
return true;
}
std::vector<std::string> command;
command.push_back("git");
command.push_back("checkout");
command.push_back("--");
for (std::vector<std::string>::const_iterator path(paths.begin()); path != paths.end(); ++path) {
for (auto path(paths_begin); path != paths_end; ++path) {
command.push_back(*path);
}
@@ -202,6 +206,18 @@ static bool git_checkout (const std::vector<std::string>& paths)
return true;
}
static bool git_checkout (const std::vector<std::string>& paths)
{
auto paths_begin(paths.begin());
while (paths.end() - paths_begin >= 100) {
if (!git_checkout_batch(paths_begin, paths_begin + 100)) {
return false;
}
paths_begin += 100;
}
return git_checkout_batch(paths_begin, paths.end());
}
static bool same_key_name (const char* a, const char* b)
{
return (!a && !b) || (a && b && std::strcmp(a, b) == 0);