Andrew's git - gitweb.git/blob - git-apply-patch-script

   1#!/bin/sh
   2# Copyright (C) 2005 Junio C Hamano
   3#
   4# Applying diff between two trees to the work tree can be
   5# done with the following single command:
   6#
   7# GIT_EXTERNAL_DIFF=git-apply-patch-script git-diff-tree -p $tree1 $tree2
   8#
   9
  10case "$#" in
  112)    exit 1 ;; # do not feed unmerged diff to me!
  12esac
  13name="$1" tmp1="$2" hex1="$3" mode1="$4" tmp2="$5" hex2="$6" mode2="$7"
  14case "$mode1" in *7??) mode1=+x ;; *6??) mode1=-x ;; esac
  15case "$mode2" in *7??) mode2=+x ;; *6??) mode2=-x ;; esac
  16
  17if test -f "$name.orig" || test -f "$name.rej"
  18then
  19    echo >&2 "Unresolved patch conflicts in the previous run found."
  20    exit 1
  21fi
  22
  23case "$mode1,$mode2" in
  24.,?x)
  25    # newly created
  26    dir=$(dirname "$name")
  27    case "$dir" in '' | .) ;; *) mkdir -p "$dir" esac || {
  28        echo >&2 "cannot create leading path for $name."
  29        exit 1
  30    }
  31    if test -f "$name"
  32    then
  33        echo >&2 "file $name to be created already exists."
  34        exit 1
  35    fi
  36    cat "$tmp2" >"$name" || {
  37        echo >&2 "cannot create $name."
  38        exit 1
  39    } 
  40    case "$mode2" in
  41    +x)
  42        echo >&2 "created $name with mode +x."
  43        chmod "$mode2" "$name"
  44        ;;
  45    -x)
  46        echo >&2 "created $name."
  47        ;;
  48    esac
  49    git-update-cache --add -- "$name"
  50    ;;
  51?x,.)
  52    # deleted
  53    echo >&2 "deleted $name."
  54    rm -f "$name" || {
  55        echo >&2 "cannot remove $name";
  56        exit 1
  57    }
  58    git-update-cache --remove -- "$name"
  59    ;;
  60*)
  61    # changed
  62    dir=$(dirname "$name")
  63    case "$dir" in '' | .) ;; *) mkdir -p "$dir" esac || {
  64        echo >&2 "cannot create leading path for $name."
  65        exit 1
  66    }
  67    # This will say "patching ..." so we do not say anything outselves.
  68    diff -u -L "a/$name" -L "b/$name" "$tmp1" "$tmp2" | patch -p1 || exit
  69
  70    case "$mode1,$mode2" in
  71    "$mode2,$mode1") ;;
  72    *)
  73        echo >&2 "changing mode from $mode1 to $mode2."
  74        chmod "$mode2" "$name"
  75        ;;
  76    esac
  77    git-update-cache -- "$name"
  78esac