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getDefaultUrl() -> value_or()

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This commit is contained in:
Eelco Dolstra 2020-06-04 20:24:28 +02:00
parent 810b2c6a48
commit ab54031e04
1 changed files with 6 additions and 16 deletions
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22
src/libfetchers/github.cc
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@ -8,20 +8,10 @@
namespace nix::fetchers {
// get the default url attribute
std::string getDefaultUrl(const Attrs & attrs, const std::string & url) {
auto s = maybeGetStrAttr(attrs, "url");
if (!s)
return url;
return *s;
}
// A github or gitlab url
const static std::string urlRegexS = "[a-zA-Z0-9.]*"; // FIXME: check
std::regex urlRegex(urlRegexS, std::regex::ECMAScript);
struct GitArchiveInputScheme : InputScheme
{
virtual std::string type() = 0;
@ -192,7 +182,7 @@ struct GitHubInputScheme : GitArchiveInputScheme
Hash getRevFromRef(nix::ref<Store> store, const Input & input) const override
{
auto host_url = getDefaultUrl(input.attrs, "github.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("github.com");
auto url = fmt("https://api.%s/repos/%s/%s/commits/%s", // FIXME: check
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"), *input.getRef());
auto json = nlohmann::json::parse(
@ -208,7 +198,7 @@ struct GitHubInputScheme : GitArchiveInputScheme
{
// FIXME: use regular /archive URLs instead? api.github.com
// might have stricter rate limits.
auto host_url = getDefaultUrl(input.attrs, "github.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("github.com");
auto url = fmt("https://api.%s/repos/%s/%s/tarball/%s", // FIXME: check if this is correct for self hosted instances
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"),
input.getRev()->to_string(Base16, false));
@ -222,7 +212,7 @@ struct GitHubInputScheme : GitArchiveInputScheme
void clone(const Input & input, const Path & destDir) override
{
auto host_url = getDefaultUrl(input.attrs, "github.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("github.com");
Input::fromURL(fmt("git+ssh://git@%s/%s/%s.git",
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo")))
.applyOverrides(input.getRef().value_or("master"), input.getRev())
@ -236,7 +226,7 @@ struct GitLabInputScheme : GitArchiveInputScheme
Hash getRevFromRef(nix::ref<Store> store, const Input & input) const override
{
auto host_url = getDefaultUrl(input.attrs, "gitlab.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("gitlab.com");
auto url = fmt("https://%s/api/v4/projects/%s%%2F%s/repository/branches/%s",
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"), *input.getRef());
auto json = nlohmann::json::parse(
@ -251,7 +241,7 @@ struct GitLabInputScheme : GitArchiveInputScheme
std::string getDownloadUrl(const Input & input) const override
{
// FIXME: This endpoint has a rate limit threshold of 5 requests per minute
auto host_url = getDefaultUrl(input.attrs, "gitlab.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("gitlab.com");
auto url = fmt("https://%s/api/v4/projects/%s%%2F%s/repository/archive.tar.gz?sha=%s",
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"),
input.getRev()->to_string(Base16, false));
@ -266,7 +256,7 @@ struct GitLabInputScheme : GitArchiveInputScheme
void clone(const Input & input, const Path & destDir) override
{
auto host_url = getDefaultUrl(input.attrs, "gitlab.com");
auto host_url = maybeGetStrAttr(input.attrs, "url").value_or("gitlab.com");
// FIXME: get username somewhere
Input::fromURL(fmt("git+ssh://git@%s/%s/%s.git",
host_url, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo")))