git-p4: improve import performance by avoiding reallocations.
[git/git-bigfiles.git] / git-quiltimport.sh
blob9a6ba2b9874e12d31adeba354d8d44436ceadaf3
1 #!/bin/sh
2 OPTIONS_KEEPDASHDASH=
3 OPTIONS_SPEC="\
4 git quiltimport [options]
5 --
6 n,dry-run dry run
7 author= author name and email address for patches without any
8 patches= path to the quilt series and patches
10 SUBDIRECTORY_ON=Yes
11 . git-sh-setup
13 dry_run=""
14 quilt_author=""
15 while test $# != 0
17 case "$1" in
18 --author)
19 shift
20 quilt_author="$1"
22 -n|--dry-run)
23 dry_run=1
25 --patches)
26 shift
27 QUILT_PATCHES="$1"
29 --)
30 shift
31 break;;
33 usage
35 esac
36 shift
37 done
39 # Quilt Author
40 if [ -n "$quilt_author" ] ; then
41 quilt_author_name=$(expr "z$quilt_author" : 'z\(.*[^ ]\) *<.*') &&
42 quilt_author_email=$(expr "z$quilt_author" : '.*<\([^>]*\)') &&
43 test '' != "$quilt_author_name" &&
44 test '' != "$quilt_author_email" ||
45 die "malformed --author parameter"
48 # Quilt patch directory
49 : ${QUILT_PATCHES:=patches}
50 if ! [ -d "$QUILT_PATCHES" ] ; then
51 echo "The \"$QUILT_PATCHES\" directory does not exist."
52 exit 1
55 # Temporary directories
56 tmp_dir="$GIT_DIR"/rebase-apply
57 tmp_msg="$tmp_dir/msg"
58 tmp_patch="$tmp_dir/patch"
59 tmp_info="$tmp_dir/info"
62 # Find the intial commit
63 commit=$(git rev-parse HEAD)
65 mkdir $tmp_dir || exit 2
66 while read patch_name level garbage <&3
68 case "$patch_name" in ''|'#'*) continue;; esac
69 case "$level" in
70 -p*) ;;
71 ''|'#'*)
72 level=;;
74 echo "unable to parse patch level, ignoring it."
75 level=;;
76 esac
77 case "$garbage" in
78 ''|'#'*);;
80 echo "trailing garbage found in series file: $garbage"
81 exit 1;;
82 esac
83 if ! [ -f "$QUILT_PATCHES/$patch_name" ] ; then
84 echo "$patch_name doesn't exist. Skipping."
85 continue
87 echo $patch_name
88 git mailinfo "$tmp_msg" "$tmp_patch" \
89 <"$QUILT_PATCHES/$patch_name" >"$tmp_info" || exit 3
90 test -s "$tmp_patch" || {
91 echo "Patch is empty. Was it split wrong?"
92 exit 1
95 # Parse the author information
96 GIT_AUTHOR_NAME=$(sed -ne 's/Author: //p' "$tmp_info")
97 GIT_AUTHOR_EMAIL=$(sed -ne 's/Email: //p' "$tmp_info")
98 export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
99 while test -z "$GIT_AUTHOR_EMAIL" && test -z "$GIT_AUTHOR_NAME" ; do
100 if [ -n "$quilt_author" ] ; then
101 GIT_AUTHOR_NAME="$quilt_author_name";
102 GIT_AUTHOR_EMAIL="$quilt_author_email";
103 elif [ -n "$dry_run" ]; then
104 echo "No author found in $patch_name" >&2;
105 GIT_AUTHOR_NAME="dry-run-not-found";
106 GIT_AUTHOR_EMAIL="dry-run-not-found";
107 else
108 echo "No author found in $patch_name" >&2;
109 echo "---"
110 cat $tmp_msg
111 printf "Author: ";
112 read patch_author
114 echo "$patch_author"
116 patch_author_name=$(expr "z$patch_author" : 'z\(.*[^ ]\) *<.*') &&
117 patch_author_email=$(expr "z$patch_author" : '.*<\([^>]*\)') &&
118 test '' != "$patch_author_name" &&
119 test '' != "$patch_author_email" &&
120 GIT_AUTHOR_NAME="$patch_author_name" &&
121 GIT_AUTHOR_EMAIL="$patch_author_email"
123 done
124 GIT_AUTHOR_DATE=$(sed -ne 's/Date: //p' "$tmp_info")
125 SUBJECT=$(sed -ne 's/Subject: //p' "$tmp_info")
126 export GIT_AUTHOR_DATE SUBJECT
127 if [ -z "$SUBJECT" ] ; then
128 SUBJECT=$(echo $patch_name | sed -e 's/.patch$//')
131 if [ -z "$dry_run" ] ; then
132 git apply --index -C1 ${level:+"$level"} "$tmp_patch" &&
133 tree=$(git write-tree) &&
134 commit=$( (echo "$SUBJECT"; echo; cat "$tmp_msg") | git commit-tree $tree -p $commit) &&
135 git update-ref -m "quiltimport: $patch_name" HEAD $commit || exit 4
137 done 3<"$QUILT_PATCHES/series"
138 rm -rf $tmp_dir || exit 5