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Commit | Line | Data |
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37f1a519 LT |
1 | #!/bin/sh |
2 | ||
215a7ad1 | 3 | . git-sh-setup || die "Not a git archive" |
37f1a519 | 4 | |
a3b427b9 | 5 | usage () { |
ba65af9c | 6 | echo >&2 "usage: $(basename $0)"' [-d <branch>] | [<branch> [start-point]] |
a3b427b9 AW |
7 | |
8 | If no arguments, show available branches and mark current branch with a star. | |
9 | If one argument, create a new branch <branchname> based off of current HEAD. | |
10 | If two arguments, create a new branch <branchname> based off of <start-point>. | |
11 | ' | |
12 | exit 1 | |
13 | } | |
14 | ||
ba65af9c JH |
15 | delete_branch () { |
16 | option="$1" branch_name="$2" | |
8098a178 JH |
17 | headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD | |
18 | sed -e 's|^refs/heads/||') | |
ba65af9c JH |
19 | case ",$headref," in |
20 | ",$branch_name,") | |
21 | die "Cannot delete the branch you are on." ;; | |
22 | ,,) | |
23 | die "What branch are you on anyway?" ;; | |
24 | esac | |
25 | branch=$(cat "$GIT_DIR/refs/heads/$branch_name") && | |
26 | branch=$(git-rev-parse --verify "$branch^0") || | |
27 | die "Seriously, what branch are you talking about?" | |
28 | case "$option" in | |
29 | -D) | |
30 | ;; | |
31 | *) | |
32 | mbs=$(git-merge-base -a "$branch" HEAD | tr '\012' ' ') | |
33 | case " $mbs " in | |
34 | *' '$branch' '*) | |
35 | # the merge base of branch and HEAD contains branch -- | |
36 | # which means that the HEAD contains everything in the HEAD. | |
37 | ;; | |
38 | *) | |
39 | echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD. | |
40 | If you are sure you want to delete it, run 'git branch -D $branch_name'." | |
41 | exit 1 | |
42 | ;; | |
43 | esac | |
44 | ;; | |
45 | esac | |
46 | rm -f "$GIT_DIR/refs/heads/$branch_name" | |
47 | echo "Deleted branch $branch_name." | |
48 | exit 0 | |
49 | } | |
50 | ||
51 | while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac | |
52 | do | |
53 | case "$1" in | |
54 | -d | -D) | |
55 | delete_branch "$1" "$2" | |
56 | exit | |
57 | ;; | |
58 | --) | |
59 | shift | |
60 | break | |
61 | ;; | |
62 | -*) | |
63 | usage | |
64 | ;; | |
65 | esac | |
66 | shift | |
67 | done | |
68 | ||
e4aec26f KV |
69 | case "$#" in |
70 | 0) | |
8098a178 JH |
71 | headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD | |
72 | sed -e 's|^refs/heads/||') | |
e4aec26f KV |
73 | git-rev-parse --symbolic --all | |
74 | sed -ne 's|^refs/heads/||p' | | |
75 | sort | | |
76 | while read ref | |
77 | do | |
78 | if test "$headref" = "$ref" | |
79 | then | |
80 | pfx='*' | |
81 | else | |
82 | pfx=' ' | |
83 | fi | |
84 | echo "$pfx $ref" | |
85 | done | |
86 | exit 0 ;; | |
87 | 1) | |
a38e7279 | 88 | head=HEAD ;; |
e4aec26f | 89 | 2) |
a38e7279 JH |
90 | head="$2^0" ;; |
91 | esac | |
e4aec26f | 92 | branchname="$1" |
a3b427b9 | 93 | |
ff84d327 | 94 | rev=$(git-rev-parse --verify "$head") || exit |
37f1a519 | 95 | |
37f1a519 LT |
96 | [ -e "$GIT_DIR/refs/heads/$branchname" ] && die "$branchname already exists" |
97 | ||
98 | echo $rev > "$GIT_DIR/refs/heads/$branchname" |