projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| 839a7a06 LT |
1 | #!/bin/sh |
| 2 | # | |
| 521003ff JH |
3 | # Copyright (c) 2005 Junio C Hamano |
| 4 | # | |
| 5 | # Fetch one or more remote refs and merge it/them into the current HEAD. | |
| 6 | ||
| 215a7ad1 | 7 | . git-sh-setup || die "Not a git archive" |
| b10ac50f | 8 | |
| 60fb5b2c JH |
9 | usage () { |
| 10 | die "git pull [-n] [-s strategy]... <repo> <head>..." | |
| 11 | } | |
| 12 | ||
| 13 | strategy_args= no_summary= | |
| 14 | while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac | |
| 15 | do | |
| 16 | case "$1" in | |
| 17 | -n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\ | |
| 18 | --no-summa|--no-summar|--no-summary) | |
| 19 | no_summary=-n ;; | |
| 20 | -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\ | |
| 21 | --strateg=*|--strategy=*|\ | |
| 22 | -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy) | |
| 23 | case "$#,$1" in | |
| 24 | *,*=*) | |
| 25 | strategy=`expr "$1" : '-[^=]*=\(.*\)'` ;; | |
| 26 | 1,*) | |
| 27 | usage ;; | |
| 28 | *) | |
| 29 | strategy="$2" | |
| 30 | shift ;; | |
| 31 | esac | |
| 32 | strategy_args="${strategy_args}-s $strategy " | |
| 33 | ;; | |
| 34 | -*) | |
| 619e5a0e JH |
35 | # Pass thru anything that is meant for fetch. |
| 36 | break | |
| 60fb5b2c JH |
37 | ;; |
| 38 | esac | |
| 39 | shift | |
| 40 | done | |
| 41 | ||
| bf7960eb | 42 | orig_head=$(git-rev-parse --verify HEAD) || die "Pulling into a black hole?" |
| 215a7ad1 | 43 | git-fetch --update-head-ok "$@" || exit 1 |
| b10ac50f | 44 | |
| bf7960eb | 45 | curr_head=$(git-rev-parse --verify HEAD) |
| b10ac50f JH |
46 | if test "$curr_head" != "$orig_head" |
| 47 | then | |
| 48 | # The fetch involved updating the current branch. | |
| 49 | ||
| 50 | # The working tree and the index file is still based on the | |
| 51 | # $orig_head commit, but we are merging into $curr_head. | |
| 52 | # First update the working tree to match $curr_head. | |
| 53 | ||
| 54 | echo >&2 "Warning: fetch updated the current branch head." | |
| 55 | echo >&2 "Warning: fast forwarding your working tree." | |
| 56 | git-read-tree -u -m "$orig_head" "$curr_head" || | |
| 57 | die "You need to first update your working tree." | |
| 58 | fi | |
| 59 | ||
| 05dd8e2e JH |
60 | merge_head=$(sed -e '/ not-for-merge /d' \ |
| 61 | -e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | \ | |
| 62 | tr '\012' ' ') | |
| e0bfc81e JH |
63 | |
| 64 | case "$merge_head" in | |
| 521003ff JH |
65 | '') |
| 66 | echo >&2 "No changes." | |
| 67 | exit 0 | |
| 68 | ;; | |
| 60fb5b2c JH |
69 | ?*' '?*) |
| 70 | strategy_default_args='-s octopus' | |
| 71 | ;; | |
| 72 | *) | |
| 73 | strategy_default_args='-s resolve' | |
| 74 | ;; | |
| 75 | esac | |
| 76 | ||
| 77 | case "$strategy_args" in | |
| 78 | '') | |
| 79 | strategy_args=$strategy_default_args | |
| acfadcfb | 80 | ;; |
| e0bfc81e JH |
81 | esac |
| 82 | ||
| c8b48ba4 | 83 | merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") |
| 60fb5b2c | 84 | git-merge $no_summary $strategy_args "$merge_name" HEAD $merge_head |