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  insteadOf = madduck:

Fix init
[code/vcsh.git] / vcsh
1 #!/bin/sh
2
3 [ -n "$VCSH_DEBUG" ] && set -x
4
5 SELF=$(basename $0)
6
7 [ -z "$XDG_CONFIG_HOME" ] && XDG_CONFIG_HOME="$HOME/.config"
8 for check_directory in "$XDG_CONFIG_HOME" "$XDG_CONFIG_HOME/vcsh" "$XDG_CONFIG_HOME/vcsh/repo.d"
9 do
10         if [ ! -d "$check_directory" ]; then
11                 if [ -e "$check_directory" ]; then
12                         echo "$SELF: error: $check_directory exists but is not a directory" >&2
13                         exit 2
14                 else
15                         mkdir "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
16                 fi
17         fi
18 done
19
20 VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
21
22 debug() {
23         [ -n "$VCSH_DEBUG" ] && echo "$SELF: debug: $1"
24 }
25
26 verbose() {
27         if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $1"; fi
28 }
29
30 #   use <repo>     Use this repository
31 #
32 #   exit              Exit vcsh mode" >&2
33 help() {
34         echo "usage: $SELF <args>
35
36    help              Display this help
37
38    list              List all repos
39
40    run <repo> \\
41        <command>     Use this repository
42
43    init <repo>       Initialize a new repository
44    clone <remote> \\
45          [<repo>]    Clone from an existing repository" >&2
46 }
47
48 use() {
49         verbose "use() begin"
50         REPO_NAME="$1"
51         GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
52
53         if [ ! -d "$GIT_DIR" ]; then
54                 echo E: no repository found for "$REPO_NAME" >&2
55                 return 2
56         fi
57
58         export GIT_DIR
59         export GIT_WORK_TREE="$(git config --get core.worktree)"
60         export VCSH_DIRECTORY="$REPO_NAME"
61         verbose "use() end"
62 }
63
64 init() {
65         verbose "init() begin"
66         [ -e "$GIT_DIR" ] &&
67                 echo "$SELF: fatal: $GIT_DIR exists" &&
68                 return 21
69         export GIT_WORK_TREE="$HOME"
70         mkdir -p "$GIT_WORK_TREE"
71         cd "$GIT_WORK_TREE" ||
72                 (echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
73                  exit 20) || exit 20
74         cd "$GIT_WORK_TREE"
75         git init
76         git config core.worktree "$GIT_WORK_TREE"
77         verbose "init() end"
78 }
79
80 leave() {
81         unset GIT_DIR
82         unset GIT_WORK_TREE
83         unset VCSH_DIRECTORY
84 }
85
86 if [ "$1" = 'help' ] || [ "$#" -eq 0 ]; then
87         help
88         [ "$1" = 'help' ]
89         exit $?
90
91 elif [ "$1" = 'list' ]; then
92         verbose "list begin"
93         for i in "$VCSH_BASE"/*.git; do
94                 echo $(basename "$i" .git)
95         done
96         verbose "list end"
97         exit 0
98
99 elif [ "$1" = 'run' ]; then
100         verbose "run begin"
101         use "$2"
102         shift 2
103         "$@"
104         leave
105         verbose "run end"
106         exit 0
107
108 #elif [ "$1" = 'use' ]; then
109 #       verbose "use begin"
110 #       if [ -n "$ZSH_VERSION" ]; then
111 #               if [ -o NO_IGNORE_EOF ]; then
112 #                       export VCSH_NO_IGNORE_EOF=1
113 #                       setopt IGNORE_EOF
114 #               fi
115 #               vcsh_exit() {
116 #                       vcsh exit;
117 #                       zle reset-prompt;
118 #               }
119 #               zle -N vcsh_exit
120 #               bindkey '^d' 'vcsh_exit'
121 #       fi
122 #       use $2
123 #       [ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
124 #       verbose "use end"
125 #       exit 0
126
127 elif [ "$1" = 'clone' ]; then
128         verbose "clone begin"
129         GIT_REMOTE="$2"
130         REPO_NAME="$3"
131         [ -z "$REPO_NAME" ] && REPO_NAME=$(basename "$GIT_REMOTE" .git)
132         export REPO_NAME
133         export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
134         init
135
136         git remote add origin "$GIT_REMOTE"
137         git config branch.master.remote origin
138         git config branch.master.merge  refs/heads/master
139         git fetch
140         for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
141                 [ -e "$object" ] &&
142                         echo "$SELF: error: $object exists." &&
143                         VCSH_CONFLICT=1;
144         done
145         [ "$VCSH_CONFLICT" = '1' ] &&
146                 echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
147                 exit 3
148         git merge origin/master
149 #       vcsh use $REPO_NAME
150         verbose "clone end"
151
152 elif [ "$1" = 'init' ]; then
153         verbose "init begin"
154         [ -z $2 ] && help && return 0
155         export REPO_NAME="$2"
156         export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
157         init
158 #       vcsh use "$REPO_NAME"
159         verbose "init end"
160
161 #elif [ "$1" = 'exit' ]; then
162 #       verbose "exit begin"
163 #       if [ -n "$ZSH_VERSION" ] && [ "$VCSH_NO_IGNORE_EOF" = '1' ]; then
164 #               unset VCSH_NO_IGNORE_EOF
165 #               setopt NO_IGNORE_EOF
166 #       fi
167 #       leave
168 #       [ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
169 #       verbose "exit end"
170 #       exit 0
171
172 else
173         verbose "defaulting to calling help()"
174         help
175         exit 3
176
177 fi
178