Add 'infra/libkookie/' from commit 'd661aa56a8843e991261510c1bb28fdc2f6975ae'

git-subtree-dir: infra/libkookie
git-subtree-mainline: 49f735974dd103039ddc4cb576bb76555164a9e7
git-subtree-split: d661aa56a8843e991261510c1bb28fdc2f6975ae

2 files changed, 105 insertions, 0 deletions

diff --git a/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/default.nix b/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/default.nix
new file mode 100644
index 000000000000..ecedd2b0b417
--- /dev/null
+++ b/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/default.nix
@@ -0,0 +1,55 @@
+{ lib, skawarePackages
+# for execlineb-with-builtins
+, coreutils, gnugrep, writeScriptBin, runCommand, runCommandCC
+}:
+
+with skawarePackages;
+
+buildPackage {
+  pname = "execline";
+  version = "2.6.1.0";
+  sha256 = "0mj565xml3hvw27finydms0s9abbbpgbr29vnr8gwi7zjzq7ck52";
+
+  description = "A small scripting language, to be used in place of a shell in non-interactive scripts";
+
+  outputs = [ "bin" "lib" "dev" "doc" "out" ];
+
+  # TODO: nsss support
+  configureFlags = [
+    "--libdir=\${lib}/lib"
+    "--dynlibdir=\${lib}/lib"
+    "--bindir=\${bin}/bin"
+    "--includedir=\${dev}/include"
+    "--with-sysdeps=${skalibs.lib}/lib/skalibs/sysdeps"
+    "--with-include=${skalibs.dev}/include"
+    "--with-lib=${skalibs.lib}/lib"
+    "--with-dynlib=${skalibs.lib}/lib"
+  ];
+
+  postInstall = ''
+    # remove all execline executables from build directory
+    rm $(find -type f -mindepth 1 -maxdepth 1 -executable)
+    rm libexecline.*
+
+    mv doc $doc/share/doc/execline/html
+    mv examples $doc/share/doc/execline/examples
+
+    mv $bin/bin/execlineb $bin/bin/.execlineb-wrapped
+
+    # A wrapper around execlineb, which provides all execline
+    # tools on `execlineb`’s PATH.
+    # It is implemented as a C script, because on non-Linux,
+    # nested shebang lines are not supported.
+    # The -lskarnet has to come at the end to support static builds.
+    $CC \
+      -O \
+      -Wall -Wpedantic \
+      -D "EXECLINEB_PATH()=\"$bin/bin/.execlineb-wrapped\"" \
+      -D "EXECLINE_BIN_PATH()=\"$bin/bin\"" \
+      -I "${skalibs.dev}/include" \
+      -L "${skalibs.lib}/lib" \
+      -o "$bin/bin/execlineb" \
+      ${./execlineb-wrapper.c} \
+      -lskarnet
+  '';
+}
diff --git a/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/execlineb-wrapper.c b/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/execlineb-wrapper.c
new file mode 100644
index 000000000000..d31a76ca26eb
--- /dev/null
+++ b/infra/libkookie/nixpkgs/pkgs/tools/misc/execline/execlineb-wrapper.c
@@ -0,0 +1,50 @@
+/*
+ * A wrapper around execlineb, which provides all execline
+ * tools on execlineb’s PATH.
+ * It is implemented as a C program, because on non-Linux,
+ * nested shebang lines are not supported.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/env.h>
+
+#define dienomem() strerr_diefu1sys(111, "stralloc_catb")
+
+// macros from outside
+/* const char* EXECLINEB_PATH; */
+/* const char* EXECLINE_BIN_PATH; */
+
+int main(int argc, char const* argv[], char const *const *envp)
+{
+  PROG = "execlineb-wrapper";
+
+  char const* path = getenv("PATH");
+  stralloc path_modif = STRALLOC_ZERO;
+
+  // modify PATH if unset or EXECLINEB_BIN_PATH is not yet there
+  if ( !path || ! strstr(path, EXECLINE_BIN_PATH())) {
+    // prepend our execline path
+    if ( ! stralloc_cats(&path_modif, "PATH=")
+         || ! stralloc_cats(&path_modif, EXECLINE_BIN_PATH()) ) dienomem();
+    // old path was not empty
+    if ( path && path[0] ) {
+      if ( ! stralloc_catb(&path_modif, ":", 1)
+           || ! stralloc_cats(&path_modif, path) ) dienomem();
+    }
+    // append final \0
+    if ( ! stralloc_0(&path_modif) ) dienomem();
+  }
+
+  // exec into execlineb and append path_modif to the environment
+  xpathexec_r_name(
+    EXECLINEB_PATH(),
+    argv,
+    envp, env_len(envp),
+    path_modif.s, path_modif.len
+  );
+}