update imported git files to adapt to new environment

12 files changed, 108 insertions, 79 deletions

diff --git a/libbb/git.c b/libbb/git.c
new file mode 100644
index 000000000..3ca8a9424
--- /dev/null
+++ b/libbb/git.c
@@ -0,0 +1,62 @@
+#include "libbb.h"
+#include "git.h"
+
+ssize_t write_in_full(int fd, const void *buf, size_t count)
+{
+        const char *p = buf;
+        ssize_t total = 0;
+
+        while (count > 0) {
+                ssize_t written = xwrite(fd, p, count);
+                if (written < 0)
+                        return -1;
+                if (!written) {
+                        errno = ENOSPC;
+                        return -1;
+                }
+                count -= written;
+                p += written;
+                total += written;
+        }
+
+        return total;
+}
+
+
+void *xcalloc(size_t nmemb, size_t size)
+{
+        void *ret = calloc(nmemb, size);
+        if (!ret && (!nmemb || !size))
+                ret = calloc(1, 1);
+        if (!ret) {
+                ret = calloc(nmemb, size);
+                if (!ret && (!nmemb || !size))
+                        ret = calloc(1, 1);
+                if (!ret)
+                        die("Out of memory, calloc failed");
+        }
+        return ret;
+}
+
+/*
+ * This is like mktime, but without normalization of tm_wday and tm_yday.
+ */
+time_t tm_to_time_t(const struct tm *tm)
+{
+        static const int mdays[] = {
+            0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+        };
+        int year = tm->tm_year - 70;
+        int month = tm->tm_mon;
+        int day = tm->tm_mday;
+
+        if (year < 0 || year > 129) /* algo only works for 1970-2099 */
+                return -1;
+        if (month < 0 || month > 11) /* array bounds */
+                return -1;
+        if (month < 2 || (year + 2) % 4)
+                day--;
+        return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24*60*60UL +
+                tm->tm_hour * 60*60 + tm->tm_min * 60 + tm->tm_sec;
+}
+
diff --git a/libbb/git.h b/libbb/git.h
new file mode 100644
index 000000000..3274af34d
--- /dev/null
+++ b/libbb/git.h
@@ -0,0 +1,21 @@
+ssize_t write_in_full(int fd, const void *buf, size_t count);
+
+#define alloc_nr(x) (((x)+16)*3/2)
+
+#define ALLOC_GROW(x, nr, alloc) \
+        do { \
+                if ((nr) > alloc) { \
+                        if (alloc_nr(alloc) < (nr)) \
+                                alloc = (nr); \
+                        else \
+                                alloc = alloc_nr(alloc); \
+                        x = xrealloc((x), alloc * sizeof(*(x))); \
+                } \
+        } while(0)
+
+static inline int is_absolute_path(const char *path)
+{
+        return path[0] == '/' || has_dos_drive_prefix(path);
+}
+
+#define NORETURN ATTRIBUTE_NORETURN
diff --git a/libbb/mingw.c b/libbb/mingw.c
index 1a9f35f4d..f90fbc1d2 100644
--- a/libbb/mingw.c
+++ b/libbb/mingw.c
@@ -1,6 +1,6 @@
-#include "../git-compat-util.h"
+#include "libbb.h"
 #include "win32.h"
-#include "../strbuf.h"
+#include "strbuf.h"
 #include "run-command.h"
 
 unsigned int _CRT_fmode = _O_BINARY;
@@ -1277,7 +1277,6 @@ char *strptime(const char *s, const char *format, struct tm *tm)
 {
         return NULL;
 }
-void gitunsetenv(const char *env)
+void unsetenv(const char *env)
 {
 }
-
diff --git a/libbb/quote.c b/libbb/quote.c
index 7a49fcf69..129dea72f 100644
--- a/libbb/quote.c
+++ b/libbb/quote.c
@@ -1,5 +1,7 @@
-#include "cache.h"
+#include "libbb.h"
+#include "strbuf.h"
 #include "quote.h"
+#include "git.h"
 
 int quote_path_fully = 1;
 
diff --git a/libbb/run-command.c b/libbb/run-command.c
index b05c734d0..d4d78e9bc 100644
--- a/libbb/run-command.c
+++ b/libbb/run-command.c
@@ -1,6 +1,6 @@
-#include "cache.h"
+#include "libbb.h"
 #include "run-command.h"
-#include "exec_cmd.h"
+#include "git.h"
 
 static inline void close_pair(int fd[2])
 {
@@ -168,9 +168,11 @@ int start_command(struct child_process *cmd)
                         env = env_setenv(env, *cmd->env);
         }
 
+#if 0
         if (cmd->git_cmd) {
                 cmd->argv = prepare_git_cmd(cmd->argv);
         }
+#endif
 
         cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env);
 
@@ -352,48 +354,3 @@ int finish_async(struct async *async)
 #endif
         return ret;
 }
-
-int run_hook(const char *index_file, const char *name, ...)
-{
-        struct child_process hook;
-        const char **argv = NULL, *env[2];
-        char index[PATH_MAX];
-        va_list args;
-        int ret;
-        size_t i = 0, alloc = 0;
-
-        if (access(git_path("hooks/%s", name), X_OK) < 0)
-                return 0;
-
-        va_start(args, name);
-        ALLOC_GROW(argv, i + 1, alloc);
-        argv[i++] = git_path("hooks/%s", name);
-        while (argv[i-1]) {
-                ALLOC_GROW(argv, i + 1, alloc);
-                argv[i++] = va_arg(args, const char *);
-        }
-        va_end(args);
-
-        memset(&hook, 0, sizeof(hook));
-        hook.argv = argv;
-        hook.no_stdin = 1;
-        hook.stdout_to_stderr = 1;
-        if (index_file) {
-                snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
-                env[0] = index;
-                env[1] = NULL;
-                hook.env = env;
-        }
-
-        ret = start_command(&hook);
-        free(argv);
-        if (ret) {
-                warning("Could not spawn %s", argv[0]);
-                return ret;
-        }
-        ret = finish_command(&hook);
-        if (ret == -ERR_RUN_COMMAND_WAITPID_SIGNAL)
-                warning("%s exited due to uncaught signal", argv[0]);
-
-        return ret;
-}
diff --git a/libbb/setenv.c b/libbb/setenv.c
index 3a22ea7b7..401d0cec5 100644
--- a/libbb/setenv.c
+++ b/libbb/setenv.c
@@ -1,6 +1,6 @@
-#include "../git-compat-util.h"
+#include "libbb.h"
 
-int gitsetenv(const char *name, const char *value, int replace)
+int setenv(const char *name, const char *value, int replace)
 {
         int out;
         size_t namelen, valuelen;
diff --git a/libbb/strbuf.c b/libbb/strbuf.c
index a88496030..d98b0fd41 100644
--- a/libbb/strbuf.c
+++ b/libbb/strbuf.c
@@ -1,5 +1,6 @@
-#include "cache.h"
-#include "refs.h"
+#include "libbb.h"
+#include "strbuf.h"
+#include "git.h"
 
 int prefixcmp(const char *str, const char *prefix)
 {
@@ -358,19 +359,3 @@ int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
 
         return len;
 }
-
-int strbuf_branchname(struct strbuf *sb, const char *name)
-{
-        int len = strlen(name);
-        if (interpret_branch_name(name, sb) == len)
-                return 0;
-        strbuf_add(sb, name, len);
-        return len;
-}
-
-int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
-{
-        strbuf_branchname(sb, name);
-        strbuf_splice(sb, 0, 0, "refs/heads/", 11);
-        return check_ref_format(sb->buf);
-}
diff --git a/libbb/strlcpy.c b/libbb/strlcpy.c
index 4024c3603..30c9be4c1 100644
--- a/libbb/strlcpy.c
+++ b/libbb/strlcpy.c
@@ -1,6 +1,6 @@
-#include "../git-compat-util.h"
+#include "libbb.h"
 
-size_t gitstrlcpy(char *dest, const char *src, size_t size)
+size_t strlcpy(char *dest, const char *src, size_t size)
 {
         size_t ret = strlen(src);
 
diff --git a/libbb/trace.c b/libbb/trace.c
index 4229ae123..dde0f6051 100644
--- a/libbb/trace.c
+++ b/libbb/trace.c
@@ -22,8 +22,9 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include "cache.h"
-#include "quote.h"
+#include "libbb.h"
+#include "strbuf.h"
+#include "git.h"
 
 /* Get a trace file descriptor from GIT_TRACE env variable. */
 static int get_trace_fd(int *need_close)
diff --git a/libbb/usage.c b/libbb/usage.c
index 820d09f92..86bf68e21 100644
--- a/libbb/usage.c
+++ b/libbb/usage.c
@@ -3,7 +3,8 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
-#include "git-compat-util.h"
+#include "libbb.h"
+#include "git.h"
 
 static void report(const char *prefix, const char *err, va_list params)
 {
diff --git a/libbb/winansi.c b/libbb/winansi.c
index 44dc293ad..f3a304436 100644
--- a/libbb/winansi.c
+++ b/libbb/winansi.c
@@ -3,7 +3,7 @@
  */
 
 #include <windows.h>
-#include "../git-compat-util.h"
+#include "libbb.h"
 
 /*
  Functions to be wrapped:
diff --git a/libbb/write_or_die.c b/libbb/write_or_die.c
index 4c29255df..f97ab8ba6 100644
--- a/libbb/write_or_die.c
+++ b/libbb/write_or_die.c
@@ -1,4 +1,5 @@
-#include "cache.h"
+#include "libbb.h"
+#include "git.h"
 
 /*
  * Some cases use stdio, but want to flush after the write