Migrate to github actions (#920)

Not all combinations are migrated to the initial configuration; corresponding TODOs added.

Drive-by: additional combinations uncovered minor portability problems -> fixed
Drive-by: remove no-longer used "script" files.

Co-authored-by: Eugene Kliuchnikov <eustas@chromium.org>

5 files changed, 34 insertions, 4 deletions

diff --git a/research/BUILD.libdivsufsort b/research/BUILD.libdivsufsort
index a6deb5b..aeea923 100644
--- a/research/BUILD.libdivsufsort
+++ b/research/BUILD.libdivsufsort
@@ -38,7 +38,8 @@ genrule(
     srcs = ["include/config.h.cmake"],
     outs = ["include/config.h"],
     cmd = ("awk '{ " +
-           "gsub(/@HAVE_IO_H 1@/, \"HAVE_IO_H 0\"); " +
+           "gsub(/HAVE_IO_H 1/, \"HAVE_IO_H 0\"); " +
+           "gsub(/HAVE_STRINGS_H 1/, \"HAVE_STRINGS_H 0\"); " +
            commom_awk_replaces +
            "print; }' $(<) > $(@)"),
 )
diff --git a/research/WORKSPACE b/research/WORKSPACE
index 358f87d..343c3bb 100644
--- a/research/WORKSPACE
+++ b/research/WORKSPACE
@@ -12,6 +12,7 @@ new_git_repository(
     build_file = "@//:BUILD.libdivsufsort",
     commit = "5f60d6f026c30fb4ac296f696b3c8b0eb71bd428",
     remote = "https://github.com/y-256/libdivsufsort",
+    shallow_since = "1445958113 +0900",
 )
 
 new_git_repository(
@@ -27,4 +28,5 @@ cc_library(
 """,
     commit = "ca7cb332011ec37a8436487f210f396b84bd8273",
     remote = "https://github.com/hillbig/esaxx",
+    shallow_since = "1391400691 +0900",
 )
diff --git a/research/brotli_decoder.c b/research/brotli_decoder.c
index 4b0bc4a..3febcbd 100644
--- a/research/brotli_decoder.c
+++ b/research/brotli_decoder.c
@@ -6,7 +6,17 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+
+#if !defined(_WIN32)
 #include <unistd.h>
+#else
+#include <io.h>
+#define fdopen _fdopen
+#if !defined(__MINGW32__)
+#define STDIN_FILENO _fileno(stdin)
+#define STDOUT_FILENO _fileno(stdout)
+#endif
+#endif
 
 #include <brotli/decode.h>
 
diff --git a/research/deorummolae.cc b/research/deorummolae.cc
index f12acd1..23ac1aa 100644
--- a/research/deorummolae.cc
+++ b/research/deorummolae.cc
@@ -5,6 +5,10 @@
 
 #include "third_party/esaxx/sais.hxx"
 
+#if defined(_MSC_VER)
+#include <intrin.h>  /* __popcnt64 */
+#endif
+
 /* Used for quick SA-entry to file mapping. Each file is padded to size that
    is a multiple of chunk size. */
 #define CHUNK_SIZE 64
@@ -30,7 +34,11 @@ typedef uint32_t TextIdx;
 typedef int32_t TextSaIdx;
 
 static size_t popcount(uint64_t u) {
+#if defined(_MSC_VER)
+  return static_cast<size_t>(__popcnt64(u));
+#else
   return static_cast<size_t>(__builtin_popcountll(u));
+#endif
 }
 
 /* Condense terminators and pad file entries. */
diff --git a/research/dictionary_generator.cc b/research/dictionary_generator.cc
index 715723f..7df55ad 100644
--- a/research/dictionary_generator.cc
+++ b/research/dictionary_generator.cc
@@ -3,7 +3,9 @@
 #include <cstdio>
 #include <cstring>
 #include <fstream>
+#if !defined(_MSC_VER)
 #include <glob.h>
+#endif
 #include <vector>
 
 #include "./deorummolae.h"
@@ -268,14 +270,19 @@ int main(int argc, char const* argv[]) {
       }
     }
 
+    bool ok = true;
+#if defined(_MSC_VER)
+        const char* resolved_path = argv[i];
+#else
     glob_t resolved_paths;
     memset(&resolved_paths, 0, sizeof(resolved_paths));
-    bool ok = true;
     if (glob(argv[i], GLOB_TILDE, NULL, &resolved_paths) == 0) {
       for(size_t j = 0; j < resolved_paths.gl_pathc; ++j) {
-        std::string content = readFile(resolved_paths.gl_pathv[j]);
+        const char* resolved_path = resolved_paths.gl_pathv[j];
+#endif
+        std::string content = readFile(resolved_path);
         if (chunkLen == 0) {
-          paths.emplace_back(resolved_paths.gl_pathv[j]);
+          paths.emplace_back(resolved_path);
           data.insert(data.end(), content.begin(), content.end());
           total += content.size();
           sizes.push_back(content.size());
@@ -293,11 +300,13 @@ int main(int argc, char const* argv[]) {
           total += chunk.size();
           sizes.push_back(chunk.size());
         }
+#if !defined(_MSC_VER)
       }
     } else {
       ok = false;
     }
     globfree(&resolved_paths);
+#endif
     if (!ok) exit(1);
   }