]> git.madduck.net Git - code/vcsh.git/blob - vcsh

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  insteadOf = madduck:

9736bc69062b2cfa1ac9b8ffe6082fea37b93842
[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="$HOME/.config"
8 [ -z "$VCSH_BASE" ]       && VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
9 for check_directory in "$VCSH_BASE" "$HOME/.gitignore.d"
10 do
11         if [ ! -d "$check_directory" ]; then
12                 if [ -e "$check_directory" ]; then
13                         echo "$SELF: error: $check_directory exists but is not a directory" >&2
14                         exit 2
15                 else
16                         echo "$SELF: attempting to create $check_directory"
17                         mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
18                 fi
19         fi
20 done
21
22 debug() {
23         [ -n "$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
46    seed-gitignore \\
47    <repo>            Seed .gitignore.d/<repo> from git ls-files" >&2
48 }
49
50 use() {
51         verbose "use() begin"
52         REPO_NAME="$1"
53         GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
54
55         if [ ! -d "$GIT_DIR" ]; then
56                 echo E: no repository found for "$REPO_NAME" >&2
57                 return 2
58         fi
59
60         export GIT_DIR
61         export GIT_WORK_TREE="$(git config --get core.worktree)"
62         export VCSH_DIRECTORY="$REPO_NAME"
63         verbose "use() end"
64 }
65
66 init() {
67         verbose "init() begin"
68         [ -e "$GIT_DIR" ] &&
69                 echo "$SELF: fatal: $GIT_DIR exists" &&
70                 return 21
71         export GIT_WORK_TREE="$HOME"
72         mkdir -p "$GIT_WORK_TREE"
73         cd "$GIT_WORK_TREE" ||
74                 (echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
75                  exit 20) || exit 20
76         cd "$GIT_WORK_TREE"
77         git init
78         git config core.worktree     "$GIT_WORK_TREE"
79         git config core.excludesfile ".gitignore.d/$REPO_NAME"
80         verbose "init() end"
81 }
82
83 leave() {
84         unset GIT_DIR
85         unset GIT_WORK_TREE
86         unset VCSH_DIRECTORY
87 }
88
89 if [ "$1" = 'help' ] || [ "$#" -eq 0 ]; then
90         help
91         [ "$1" = 'help' ]
92         exit $?
93
94 elif [ "$1" = 'list' ]; then
95         verbose "list begin"
96         for i in "$VCSH_BASE"/*.git; do
97                 echo $(basename "$i" .git)
98         done
99         verbose "list end"
100         exit 0
101
102 elif [ "$1" = 'run' ]; then
103         verbose "run begin"
104         use "$2"
105         shift 2
106         "$@"
107         leave
108         verbose "run end"
109         exit 0
110
111 #elif [ "$1" = 'use' ]; then
112 #       verbose "use begin"
113 #       if [ -n "$ZSH_VERSION" ]; then
114 #               if [ -o NO_IGNORE_EOF ]; then
115 #                       export VCSH_NO_IGNORE_EOF=1
116 #                       setopt IGNORE_EOF
117 #               fi
118 #               vcsh_exit() {
119 #                       vcsh exit;
120 #                       zle reset-prompt;
121 #               }
122 #               zle -N vcsh_exit
123 #               bindkey '^d' 'vcsh_exit'
124 #       fi
125 #       use $2
126 #       [ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
127 #       verbose "use end"
128 #       exit 0
129
130 elif [ "$1" = 'clone' ]; then
131         verbose "clone begin"
132         GIT_REMOTE="$2"
133         REPO_NAME="$3"
134         [ -z "$REPO_NAME" ] && REPO_NAME=$(basename "$GIT_REMOTE" .git)
135         export REPO_NAME
136         export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
137         init
138
139         git remote add origin "$GIT_REMOTE"
140         git config branch.master.remote origin
141         git config branch.master.merge  refs/heads/master
142         git config core.excludesfile    ".gitignore.d/$REPO_NAME"
143         git fetch
144         for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
145                 [ -e "$object" ] &&
146                         echo "$SELF: error: $object exists." &&
147                         VCSH_CONFLICT=1;
148         done
149         [ "$VCSH_CONFLICT" = '1' ] &&
150                 echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
151                 echo "  Once this situation has been resolved, run 'vcsh run <foo> git pull' to finish cloning.\n" &&
152                 exit 3
153         git merge origin/master
154 #       vcsh use $REPO_NAME
155         verbose "clone end"
156
157 elif [ "$1" = 'init' ]; then
158         verbose "init begin"
159         [ -z $2 ] && help && echo && echo "$SELF $1: please specify repository to work on" && return 0
160         export REPO_NAME="$2"
161         export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
162         init
163 #       vcsh use "$REPO_NAME"
164         verbose "init end"
165
166 #elif [ "$1" = 'exit' ]; then
167 #       verbose "exit begin"
168 #       if [ -n "$ZSH_VERSION" ] && [ "$VCSH_NO_IGNORE_EOF" = '1' ]; then
169 #               unset VCSH_NO_IGNORE_EOF
170 #               setopt NO_IGNORE_EOF
171 #       fi
172 #       leave
173 #       [ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
174 #       verbose "exit end"
175 #       exit 0
176
177 elif [ "$1" = 'seed-gitignore' ]; then
178         verbose "seed-gitignore begin"
179         [ -z $2 ] && help && echo && echo "$SELF $1: please specify repository to work on" && return 0
180         use "$2"
181         git config core.excludesfile ".gitignore.d/$REPO_NAME"
182         files=$(git ls-files)
183         gitignores=$(for file in $(git ls-files); do
184                 while true; do
185                         echo $file; new="${file%/*}"
186                         [ "$file" = "$new" ] && break
187                         file="$new"
188                 done;
189         done | sort -u | sed 's/^/!/')
190         [ -e .gitignore.d/$2 ] &&
191         echo "$SELF: .gitignore.d/$2 exists, moving it to .gitignore.d/$2.bak" &&
192         mv -f .gitignore.d/$2 .gitignore.d/$2.bak
193         echo '*' > .gitignore.d/$2
194         for gitignore in $gitignores; do
195                 echo $gitignore >> .gitignore.d/$2
196         done
197
198 else
199         verbose "defaulting to calling help()"
200         help
201         exit 3
202
203 fi
204