chore(3p/nix): unvendor tvix 0.1 r/4098

Nothing is using this now, and we'll likely never pick this up again,
but we learned a lot in the process.

Every now and then this breaks in some bizarre way on channel bumps
and it's just a waste of time to maintain that.

Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 121 deletions

diff --git a/third_party/nix/src/libexpr/names.cc b/third_party/nix/src/libexpr/names.cc
deleted file mode 100644
index 1e9c2f2f4aac..000000000000
--- a/third_party/nix/src/libexpr/names.cc
+++ /dev/null
@@ -1,121 +0,0 @@
-#include "libexpr/names.hh"
-
-#include <memory>
-
-#include <absl/strings/numbers.h>
-
-#include "libutil/util.hh"
-
-namespace nix {
-
-DrvName::DrvName() { name = ""; }
-
-/* Parse a derivation name.  The `name' part of a derivation name is
-   everything up to but not including the first dash *not* followed by
-   a letter.  The `version' part is the rest (excluding the separating
-   dash).  E.g., `apache-httpd-2.0.48' is parsed to (`apache-httpd',
-   '2.0.48'). */
-DrvName::DrvName(const std::string& s) : hits(0) {
-  name = fullName = s;
-  for (unsigned int i = 0; i < s.size(); ++i) {
-    /* !!! isalpha/isdigit are affected by the locale. */
-    if (s[i] == '-' && i + 1 < s.size() && (isalpha(s[i + 1]) == 0)) {
-      name = std::string(s, 0, i);
-      version = std::string(s, i + 1);
-      break;
-    }
-  }
-}
-
-bool DrvName::matches(DrvName& n) {
-  if (name != "*") {
-    if (!regex) {
-      regex = std::make_unique<std::regex>(name, std::regex::extended);
-    }
-    if (!std::regex_match(n.name, *regex)) {
-      return false;
-    }
-  }
-  return !(!version.empty() && version != n.version);
-}
-
-std::string nextComponent(std::string::const_iterator& p,
-                          const std::string::const_iterator end) {
-  /* Skip any dots and dashes (component separators). */
-  while (p != end && (*p == '.' || *p == '-')) {
-    ++p;
-  }
-
-  if (p == end) {
-    return "";
-  }
-
-  /* If the first character is a digit, consume the longest sequence
-     of digits.  Otherwise, consume the longest sequence of
-     non-digit, non-separator characters. */
-  std::string s;
-  if (isdigit(*p) != 0) {
-    while (p != end && (isdigit(*p) != 0)) {
-      s += *p++;
-    }
-  } else {
-    while (p != end && ((isdigit(*p) == 0) && *p != '.' && *p != '-')) {
-      s += *p++;
-    }
-  }
-
-  return s;
-}
-
-static bool componentsLT(const std::string& c1, const std::string& c2) {
-  int n1;
-  int n2;
-  bool c1Num = absl::SimpleAtoi(c1, &n1);
-  bool c2Num = absl::SimpleAtoi(c2, &n2);
-
-  if (c1Num && c2Num) {
-    return n1 < n2;
-  }
-  if (c1.empty() && c2Num) {
-    return true;
-  } else if (c1 == "pre" && c2 != "pre") {
-    return true;
-  } else if (c2 == "pre") {
-    return false;
-    /* Assume that `2.3a' < `2.3.1'. */
-  } else if (c2Num) {
-    return true;
-  } else if (c1Num) {
-    return false;
-  } else {
-    return c1 < c2;
-  }
-}
-
-int compareVersions(const std::string& v1, const std::string& v2) {
-  std::string::const_iterator p1 = v1.begin();
-  std::string::const_iterator p2 = v2.begin();
-
-  while (p1 != v1.end() || p2 != v2.end()) {
-    std::string c1 = nextComponent(p1, v1.end());
-    std::string c2 = nextComponent(p2, v2.end());
-    if (componentsLT(c1, c2)) {
-      return -1;
-    }
-    if (componentsLT(c2, c1)) {
-      return 1;
-    }
-  }
-
-  return 0;
-}
-
-DrvNames drvNamesFromArgs(const Strings& opArgs) {
-  DrvNames result;
-  for (auto& i : opArgs) {
-    result.push_back(DrvName(i));
-  }
-  return result;
-}
-
-}  // namespace nix