Documentation: --cherry-pick

diff --git a/local-fetch.c b/local-fetch.c
index 1be73904f1b56fe0981973e9c21a368a4bba7975..4b650efa8b19424a61566b7ec87e7808874a6721 100644 (file)
--- a/local-fetch.c
+++ b/local-fetch.c
@@ -5,17 +5,18 @@
 #include "commit.h"
 #include "fetch.h"
 
-static int use_link = 0;
-static int use_symlink = 0;
+static int use_link;
+static int use_symlink;
 static int use_filecopy = 1;
+static int commits_on_stdin;
 
-static char *path; /* "Remote" git repository */
+static const char *path; /* "Remote" git repository */
 
 void prefetch(unsigned char *sha1)
 {
 }
 
-static struct packed_git *packs = NULL;
+static struct packed_git *packs;
 
 static void setup_index(unsigned char *sha1)
 {
@@ -42,8 +43,8 @@ static int setup_indices(void)
                return -1;
        while ((de = readdir(dir)) != NULL) {
                int namelen = strlen(de->d_name);
-               if (namelen != 50 || 
-                   strcmp(de->d_name + namelen - 5, ".pack"))
+               if (namelen != 50 ||
+                   !has_extension(de->d_name, ".pack"))
                        continue;
                get_sha1_hex(de->d_name + 5, sha1);
                setup_index(sha1);
@@ -63,9 +64,9 @@ static int copy_file(const char *source, char *dest, const char *hex,
                }
                /* If we got ENOENT there is no point continuing. */
                if (errno == ENOENT) {
-                       if (warn_if_not_exists)
-                               fprintf(stderr, "does not exist %s\n", source);
-                       return -1;
+                       if (!warn_if_not_exists)
+                               return -1;
+                       return error("does not exist %s", source);
                }
        }
        if (use_symlink) {
@@ -73,9 +74,8 @@ static int copy_file(const char *source, char *dest, const char *hex,
                if (stat(source, &st)) {
                        if (!warn_if_not_exists && errno == ENOENT)
                                return -1;
-                       fprintf(stderr, "cannot stat %s: %s\n", source,
-                               strerror(errno));
-                       return -1;
+                       return error("cannot stat %s: %s", source,
+                                    strerror(errno));
                }
                if (!symlink(source, dest)) {
                        pull_say("symlink %s\n", hex);
@@ -89,25 +89,21 @@ static int copy_file(const char *source, char *dest, const char *hex,
                if (ifd < 0) {
                        if (!warn_if_not_exists && errno == ENOENT)
                                return -1;
-                       fprintf(stderr, "cannot open %s\n", source);
-                       return -1;
+                       return error("cannot open %s", source);
                }
                ofd = open(dest, O_WRONLY | O_CREAT | O_EXCL, 0666);
                if (ofd < 0) {
-                       fprintf(stderr, "cannot open %s\n", dest);
                        close(ifd);
-                       return -1;
+                       return error("cannot open %s", dest);
                }
                status = copy_fd(ifd, ofd);
                close(ofd);
                if (status)
-                       fprintf(stderr, "cannot write %s\n", dest);
-               else
-                       pull_say("copy %s\n", hex);
-               return status;
+                       return error("cannot write %s", dest);
+               pull_say("copy %s\n", hex);
+               return 0;
        }
-       fprintf(stderr, "failed to copy %s with given copy methods.\n", hex);
-       return -1;
+       return error("failed to copy %s with given copy methods.", hex);
 }
 
 static int fetch_pack(const unsigned char *sha1)
@@ -180,13 +176,11 @@ int fetch_ref(char *ref, unsigned char *sha1)
        ifd = open(filename, O_RDONLY);
        if (ifd < 0) {
                close(ifd);
-               fprintf(stderr, "cannot open %s\n", filename);
-               return -1;
+               return error("cannot open %s", filename);
        }
-       if (read(ifd, hex, 40) != 40 || get_sha1_hex(hex, sha1)) {
+       if (read_in_full(ifd, hex, 40) != 40 || get_sha1_hex(hex, sha1)) {
                close(ifd);
-               fprintf(stderr, "cannot read from %s\n", filename);
-               return -1;
+               return error("cannot read from %s", filename);
        }
        close(ifd);
        pull_say("ref %s\n", sha1_to_hex(sha1));
@@ -194,7 +188,7 @@ int fetch_ref(char *ref, unsigned char *sha1)
 }
 
 static const char local_pull_usage[] =
-"git-local-fetch [-c] [-t] [-a] [-v] [-w filename] [--recover] [-l] [-s] [-n] commit-id path";
+"git-local-fetch [-c] [-t] [-a] [-v] [-w filename] [--recover] [-l] [-s] [-n] [--stdin] commit-id path";
 
 /*
  * By default we only use file copy.
@@ -202,10 +196,11 @@ static const char local_pull_usage[] =
  * If -s is specified, then a symlink is attempted.
  * If -n is _not_ specified, then a regular file-to-file copy is done.
  */
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
 {
-       const char *write_ref = NULL;
-       char *commit_id;
+       int commits;
+       const char **write_ref = NULL;
+       char **commit_id;
        int arg = 1;
 
        setup_git_directory();
@@ -230,20 +225,30 @@ int main(int argc, char **argv)
                else if (argv[arg][1] == 'v')
                        get_verbosely = 1;
                else if (argv[arg][1] == 'w')
-                       write_ref = argv[++arg];
+                       write_ref = &argv[++arg];
                else if (!strcmp(argv[arg], "--recover"))
                        get_recover = 1;
+               else if (!strcmp(argv[arg], "--stdin"))
+                       commits_on_stdin = 1;
                else
                        usage(local_pull_usage);
                arg++;
        }
-       if (argc < arg + 2)
+       if (argc < arg + 2 - commits_on_stdin)
                usage(local_pull_usage);
-       commit_id = argv[arg];
-       path = argv[arg + 1];
+       if (commits_on_stdin) {
+               commits = pull_targets_stdin(&commit_id, &write_ref);
+       } else {
+               commit_id = (char **) &argv[arg++];
+               commits = 1;
+       }
+       path = argv[arg];
 
-       if (pull(1, &commit_id, &write_ref, path))
+       if (pull(commits, commit_id, write_ref, path))
                return 1;
 
+       if (commits_on_stdin)
+               pull_targets_free(commits, commit_id, write_ref);
+
        return 0;
 }