Teach the --multiple option to 'git fetch'

Add the --multiple option to specify that all arguments are either
groups or remotes. The primary reason for adding this option is
to allow us to re-implement 'git remote update' using fetch.

It would have been nice if this option was not needed, but since
the colon in a refspec is optional, it is in general not possible
to know whether a single, colon-less argument is a remote or a
refspec.

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 93d73c3..8b0cf58 100644 (file)
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -24,6 +24,12 @@
 --keep::
        Keep downloaded pack.
 
+ifndef::git-pull[]
+--multiple::
+       Allow several <repository> and <group> arguments to be
+       specified. No <refspec>s may be specified.
+endif::git-pull[]
+
 ifdef::git-pull[]
 --no-tags::
 endif::git-pull[]

diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index 334744c..edb77dc 100644 (file)
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -12,6 +12,8 @@ SYNOPSIS
 
 'git fetch' <options> <group>
 
+'git fetch' --multiple <options> [<repository> | <group>]...
+
 'git fetch' --all <options>
 
 

diff --git a/builtin-fetch.c b/builtin-fetch.c
index e6bbdc7..c903c66 100644 (file)
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -15,6 +15,7 @@
 static const char * const builtin_fetch_usage[] = {
        "git fetch [options] [<repository> <refspec>...]",
        "git fetch [options] <group>",
+       "git fetch --multiple [options] [<repository> | <group>]...",
        "git fetch --all [options]",
        NULL
 };
@@ -25,7 +26,7 @@ enum {
        TAGS_SET = 2
 };
 
-static int all, append, force, keep, update_head_ok, verbosity;
+static int all, append, force, keep, multiple, update_head_ok, verbosity;
 static int tags = TAGS_DEFAULT;
 static const char *depth;
 static const char *upload_pack;
@@ -42,6 +43,8 @@ static struct option builtin_fetch_options[] = {
                   "path to upload pack on remote end"),
        OPT_BOOLEAN('f', "force", &force,
                    "force overwrite of local branch"),
+       OPT_BOOLEAN('m', "multiple", &multiple,
+                   "fetch from multiple remotes"),
        OPT_SET_INT('t', "tags", &tags,
                    "fetch all tags and associated objects", TAGS_SET),
        OPT_SET_INT('n', NULL, &tags,
@@ -798,6 +801,12 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
                /* No arguments -- use default remote */
                remote = remote_get(NULL);
                result = fetch_one(remote, argc, argv);
+       } else if (multiple) {
+               /* All arguments are assumed to be remotes or groups */
+               for (i = 0; i < argc; i++)
+                       if (!add_remote_or_group(argv[i], &list))
+                               die("No such remote or remote group: %s", argv[i]);
+               result = fetch_multiple(&list);
        } else {
                /* Single remote or group */
                (void) add_remote_or_group(argv[0], &list);

diff --git a/t/t5514-fetch-multiple.sh b/t/t5514-fetch-multiple.sh
index 25244bf..69c64ab 100755 (executable)
--- a/t/t5514-fetch-multiple.sh
+++ b/t/t5514-fetch-multiple.sh
@@ -73,4 +73,48 @@ test_expect_success 'git fetch --all does not allow non-option arguments' '
         test_must_fail git fetch --all origin master)
 '
 
+cat > expect << EOF
+  origin/HEAD -> origin/master
+  origin/master
+  origin/side
+  three/another
+  three/master
+  three/side
+EOF
+
+test_expect_success 'git fetch --multiple (but only one remote)' '
+       (git clone one test3 &&
+        cd test3 &&
+        git remote add three ../three &&
+        git fetch --multiple three &&
+        git branch -r > output &&
+        test_cmp ../expect output)
+'
+
+cat > expect << EOF
+  one/master
+  one/side
+  origin/HEAD -> origin/master
+  origin/master
+  origin/side
+  two/another
+  two/master
+  two/side
+EOF
+
+test_expect_success 'git fetch --multiple (two remotes)' '
+       (git clone one test4 &&
+        cd test4 &&
+        git remote add one ../one &&
+        git remote add two ../two &&
+        git fetch --multiple one two &&
+        git branch -r > output &&
+        test_cmp ../expect output)
+'
+
+test_expect_success 'git fetch --multiple (bad remote names)' '
+       (cd test4 &&
+        test_must_fail git fetch --multiple four)
+'
+
 test_done