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Implement hook system
[code/vcsh.git] / vcsh
diff --git a/vcsh b/vcsh
index 990a234ce11828baf2b34e50bd9f5edf94a73f31..bf97cbfb0a92a632e5961d9d51c54d5ae8a16ee4 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -1,15 +1,19 @@
 #!/bin/sh
 
 # This program is licensed under the GNU GPL version 2 or later.
-# (c) Richard "RichiH" Hartmann, 2011
+# (c) Richard "RichiH" Hartmann <richih.mailinglist@gmail.com>, 2011
 # For details, see LICENSE. To submit patches, you have to agree to
 # license your code under the GNU GPL version 2 or later.
 
 
-[ -n "$VCSH_DEBUG" ]      && set -vx
-[ -z "$XDG_CONFIG_HOME" ] && XDG_CONFIG_HOME="$HOME/.config"
-[ -z "$VCSH_REPO_D" ]     && VCSH_REPO_D="$XDG_CONFIG_HOME/vcsh/repo.d"
-[ -z "$VCSH_BASE" ]       && VCSH_BASE="$HOME"
+[ -n "$VCSH_DEBUG" ]                  && set -vx
+[ -z "$XDG_CONFIG_HOME" ]             && XDG_CONFIG_HOME="$HOME/.config"
+[ -r "$XDG_CONFIG_HOME/vcsh/config" ] && . "$XDG_CONFIG_HOME/vcsh/config"
+[ -n "$VCSH_DEBUG" ]                  && set -vx
+[ -z "$VCSH_REPO_D" ]                 && VCSH_REPO_D="$XDG_CONFIG_HOME/vcsh/repo.d"
+[ -z "$VCSH_HOOK_D" ]                 && VCSH_HOOK_D="$XDG_CONFIG_HOME/vcsh/hooks-enabled"
+[ -z "$VCSH_BASE" ]                   && VCSH_BASE="$HOME"
+[ -z "$VCSH_GITIGNORE" ]              && VCSH_GITIGNORE='exact'
 
 SELF=$(basename $0)
 
@@ -100,14 +104,23 @@ To continue, type \"Yes, do as I say\""
 }
 
 enter() {
+       hook pre-enter
        use
        $SHELL
+       hook post-enter
 }
 
 git_dir_exists() {
        [ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
 }
 
+hook() {
+       for f in $VCSH_HOOK_D/$1* $VCSH_HOOK_D/$VCSH_REPO_NAME.$1*; do
+               [ -x "$f" ] || continue
+               "$f"
+       done
+}
+
 init() {
        [ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
        export GIT_WORK_TREE="$VCSH_BASE"
@@ -147,8 +160,10 @@ rename() {
 }
 
 run() {
+       hook pre-run
        use
        $VCSH_EXTERNAL_COMMAND
+       hook post-run
 }
 
 setup() {
@@ -179,7 +194,9 @@ write_gitignore() {
        echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
        for gitignore in $gitignores; do
                echo "$gitignore" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
-               [ -d "$gitignore" ] && { echo "$gitignore/*" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
+               if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$gitignore" ]; then
+                       { echo "$gitignore/*" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
+               fi
        done
        if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then
                rm -f "$tempfile" || error "could not delete '$tempfile'"
@@ -194,6 +211,10 @@ write_gitignore() {
                fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
 }
 
+if [ ! x$VCSH_GITIGNORE = x'exact' ] && [ ! x$VCSH_GITIGNORE = x'recursive' ]; then
+       fatal "\$VCSH_GITIGNORE must be either 'exact' or 'recursive'" 1
+fi
+
 if [ "$1" = 'clone' ]; then
        [ -z $2 ] && fatal "$1: please specify a remote" 1
        export VCSH_COMMAND="$1"