cvsserver: checkout faster by sending files in a sensible order

[git.git] / checkout-index.c

diff --git a/checkout-index.c b/checkout-index.c
index 53dd8cb..f54c606 100644 (file)
--- a/checkout-index.c
+++ b/checkout-index.c
@@ -22,6 +22,10 @@
  *
  *     find . -name '*.h' -print0 | xargs -0 git-checkout-index -f --
  *
+ * or:
+ *
+ *     find . -name '*.h' -print0 | git-checkout-index -f -z --stdin
+ *
  * which will force all existing *.h files to be replaced with
  * their cached copies. If an empty command line implied "all",
  * then this would force-refresh everything in the cache, which
@@ -33,6 +37,8 @@
  * but get used to it in scripting!).
  */
 #include "cache.h"
+#include "strbuf.h"
+#include "quote.h"
 
 static const char *prefix;
 static int prefix_length;
@@ -114,8 +120,11 @@ int main(int argc, char **argv)
        int i;
        int newfd = -1;
        int all = 0;
+       int read_from_stdin = 0;
+       int line_termination = '\n';
 
        prefix = setup_git_directory();
+       git_config(git_default_config);
        prefix_length = prefix ? strlen(prefix) : 0;
 
        if (read_cache() < 0) {
@@ -155,6 +164,17 @@ int main(int argc, char **argv)
                                die("cannot open index.lock file.");
                        continue;
                }
+               if (!strcmp(arg, "-z")) {
+                       line_termination = 0;
+                       continue;
+               }
+               if (!strcmp(arg, "--stdin")) {
+                       if (i != argc - 1)
+                               die("--stdin must be at the end");
+                       read_from_stdin = 1;
+                       i++; /* do not consider arg as a file name */
+                       break;
+               }
                if (!strncmp(arg, "--prefix=", 9)) {
                        state.base_dir = arg+9;
                        state.base_dir_len = strlen(state.base_dir);
@@ -190,9 +210,31 @@ int main(int argc, char **argv)
 
                if (all)
                        die("git-checkout-index: don't mix '--all' and explicit filenames");
+               if (read_from_stdin)
+                       die("git-checkout-index: don't mix '--stdin' and explicit filenames");
                checkout_file(prefix_path(prefix, prefix_length, arg));
        }
 
+       if (read_from_stdin) {
+               struct strbuf buf;
+               if (all)
+                       die("git-checkout-index: don't mix '--all' and '--stdin'");
+               strbuf_init(&buf);
+               while (1) {
+                       char *path_name;
+                       read_line(&buf, stdin, line_termination);
+                       if (buf.eof)
+                               break;
+                       if (line_termination && buf.buf[0] == '"')
+                               path_name = unquote_c_style(buf.buf, NULL);
+                       else
+                               path_name = buf.buf;
+                       checkout_file(prefix_path(prefix, prefix_length, path_name));
+                       if (path_name != buf.buf)
+                               free(path_name);
+               }
+       }
+
        if (all)
                checkout_all();