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projects / code / vcsh.git / blobdiff
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Clean up Dieter's patches
[code/vcsh.git] / vcsh
diff --git a/vcsh b/vcsh
index 8ba0f2709ee62fd3e0a982bc80af0886e88fea6b..16bfa53f738e3fd0a80b105c84bd2bc74d02e251 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -35,6 +35,19 @@ verbose() {
        if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi
 }
 
        if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $@"; fi
 }
 
+fatal() {
+       echo "$SELF: fatal: $1" >&2
+       exit $2
+}
+
+error() {
+       echo "$SELF: error: $1" >&2
+}
+
+info() {
+       echo "$SELF: info: $1"
+}
+
 setup() {
        git config core.worktree     "$GIT_WORK_TREE"
        git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
 setup() {
        git config core.worktree     "$GIT_WORK_TREE"
        git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
@@ -45,13 +58,10 @@ setup() {
 
 init() {
        verbose "init() begin"
 
 init() {
        verbose "init() begin"
-       [ -e "$GIT_DIR" ] &&
-               echo "$SELF: fatal: $GIT_DIR exists" &&
-               return 10
+       [ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
        export GIT_WORK_TREE="$HOME"
        mkdir -p "$GIT_WORK_TREE"
        export GIT_WORK_TREE="$HOME"
        mkdir -p "$GIT_WORK_TREE"
-       cd "$GIT_WORK_TREE" ||
-               { echo "$SELF: fatal: could not enter $GIT_WORK_TREE"; return 11; }
+       cd "$GIT_WORK_TREE" || fatal "could not enter '$GIT_WORK_TREE'" 11
        cd "$GIT_WORK_TREE"
        git init
        setup
        cd "$GIT_WORK_TREE"
        git init
        setup
@@ -61,7 +71,7 @@ init() {
 use() {
        verbose "use() begin"
        if [ ! -d "$GIT_DIR" ]; then
 use() {
        verbose "use() begin"
        if [ ! -d "$GIT_DIR" ]; then
-               echo E: no repository found for "$VCSH_REPO_NAME" >&2
+               error "no repository found for '$VCSH_REPO_NAME'"
                return 12
        fi
        export GIT_DIR
                return 12
        fi
        export GIT_DIR
@@ -85,14 +95,14 @@ elif [ "$1" = 'delete' ] ||
      [ "$1" = 'run' ] ||
      [ "$1" = 'seed-gitignore' ] ||
      [ "$1" = 'setup' ]; then
      [ "$1" = 'run' ] ||
      [ "$1" = 'seed-gitignore' ] ||
      [ "$1" = 'setup' ]; then
-       [ -z $2 ] && echo "$SELF $1: error: please specify repository to work on" && exit 1
+       [ -z $2 ] && fatal "$1: please specify repository to work on" 1
        export VCSH_COMMAND="$1"
        export VCSH_REPO_NAME="$2"
        export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
        shift 2
        export VCSH_EXTERNAL_COMMAND="$*"
        if [ "$VCSH_COMMAND" = 'run' ]; then
        export VCSH_COMMAND="$1"
        export VCSH_REPO_NAME="$2"
        export GIT_DIR="$VCSH_BASE/$VCSH_REPO_NAME.git"
        shift 2
        export VCSH_EXTERNAL_COMMAND="$*"
        if [ "$VCSH_COMMAND" = 'run' ]; then
-               [ -z "$VCSH_EXTERNAL_COMMAND" ] && echo "$SELF $1 $2: error: please specify a command" && exit 1
+               [ -z "$VCSH_EXTERNAL_COMMAND" ] && fatal "$1 $2: please specify a command" 1
        fi
 elif [ "$1" = 'help' ] ||
      [ "$1" = 'list' ]; then
        fi
 elif [ "$1" = 'help' ] ||
      [ "$1" = 'list' ]; then
@@ -112,11 +122,10 @@ for check_directory in "$VCSH_BASE" "$HOME/.gitignore.d"
 do
        if [ ! -d "$check_directory" ]; then
                if [ -e "$check_directory" ]; then
 do
        if [ ! -d "$check_directory" ]; then
                if [ -e "$check_directory" ]; then
-                       echo "$SELF: fatal: $check_directory exists but is not a directory" >&2
-                       exit 13
+                       fatal "'$check_directory' exists but is not a directory" 13
                else
                else
-                       echo "$SELF: info: attempting to create $check_directory"
-                       mkdir -p "$check_directory" || { echo "$SELF: fatal: could not create $check_directory" >&2; exit 50; }
+                       info "attempting to create '$check_directory'"
+                       mkdir -p "$check_directory" || fatal "could not create '$check_directory'" 50
                fi
        fi
 done
                fi
        fi
 done
@@ -131,13 +140,12 @@ if [ "$VCSH_COMMAND" = 'clone' ]; then
        git fetch
        for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
                [ -e "$object" ] &&
        git fetch
        for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
                [ -e "$object" ] &&
-                       echo "$SELF: error: $object exists." &&
+                       error "'$object' exists." &&
                        VCSH_CONFLICT=1;
        done
        [ "$VCSH_CONFLICT" = '1' ] &&
                        VCSH_CONFLICT=1;
        done
        [ "$VCSH_CONFLICT" = '1' ] &&
-               echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
-               echo "  Once this situation has been resolved, run 'vcsh run <foo> git pull' to finish cloning.\n" &&
-               exit 17
+               fatal "will stop after fetching and not try to merge!
+  Once this situation has been resolved, run 'vcsh run $VCSH_REPO_NAME git pull' to finish cloning.\n" 17
        git merge origin/master
        verbose "clone end"
 
        git merge origin/master
        verbose "clone end"
 
@@ -150,7 +158,7 @@ elif [ "$VCSH_COMMAND" = 'delete' ]; then
        old_dir="$PWD"
        cd "$HOME"
        use || exit $?
        old_dir="$PWD"
        cd "$HOME"
        use || exit $?
-       echo "$SELF: info: This operation WILL DETROY DATA!"
+       info "This operation WILL DETROY DATA!"
        files=$(git ls-files)
        echo "These files will be deleted:
 
        files=$(git ls-files)
        echo "These files will be deleted:
 
@@ -161,9 +169,9 @@ To continue, type \"Yes, do as I say\""
        read answer
        [ "x$answer" = "xYes, do as I say" ] || exit 16
        for file in $files; do
        read answer
        [ "x$answer" = "xYes, do as I say" ] || exit 16
        for file in $files; do
-               rm -f $file || echo "$SELF: info: could not delete '$file', continuing with deletion"
+               rm -f $file || info "could not delete '$file', continuing with deletion"
        done
        done
-       rm -rf "$GIT_DIR" || echo "$SELF: info: could not delete '$GIT_DIR'"
+       rm -rf "$GIT_DIR" || info "could not delete '$GIT_DIR'"
        cd "$old_dir"
        verbose "delete end"
 
        cd "$old_dir"
        verbose "delete end"
 
@@ -205,8 +213,7 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
                        file="$new"
                done;
        done | sort -u)
                        file="$new"
                done;
        done | sort -u)
-       tempfile=$(mktemp) ||
-               { echo "$SELF: fatal: could not create tempfile"; exit 51; }
+       tempfile=$(mktemp) || fatal "could not create tempfile" 51
        echo '*' > "$tempfile"
        for gitignore in $gitignores; do
                echo "$gitignore" | sed 's/^/!/' >> "$tempfile"
        echo '*' > "$tempfile"
        for gitignore in $gitignores; do
                echo "$gitignore" | sed 's/^/!/' >> "$tempfile"
@@ -216,12 +223,12 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
                rm -f "$tempfile" &&
                exit
        if [ -e "$HOME/.gitignore.d/$VCSH_REPO_NAME" ]; then
                rm -f "$tempfile" &&
                exit
        if [ -e "$HOME/.gitignore.d/$VCSH_REPO_NAME" ]; then
-               echo "$SELF: info: $HOME/.gitignore.d/$VCSH_REPO_NAME differs from new data, moving it to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak"
+               info "'$HOME/.gitignore.d/$VCSH_REPO_NAME' differs from new data, moving it to '$HOME/.gitignore.d/$VCSH_REPO_NAME.bak'"
                mv -f "$HOME/.gitignore.d/$VCSH_REPO_NAME" "$HOME/.gitignore.d/$VCSH_REPO_NAME.bak" ||
                mv -f "$HOME/.gitignore.d/$VCSH_REPO_NAME" "$HOME/.gitignore.d/$VCSH_REPO_NAME.bak" ||
-                       { echo "$SELF: fatal: could not move $HOME/.gitignore.d/$VCSH_REPO_NAME to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak"; exit 53; }
+                       fatal "could not move '$HOME/.gitignore.d/$VCSH_REPO_NAME' to '$HOME/.gitignore.d/$VCSH_REPO_NAME.bak'" 53
        fi
        mv -f "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" ||
        fi
        mv -f "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" ||
-               { echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$VCSH_REPO_NAME" && exit 53; }
+               fatal "could not move '$tempfile' to '$HOME/.gitignore.d/$VCSH_REPO_NAME'" 53
        cd "$old_dir"
        verbose "seed-gitignore end"
 
        cd "$old_dir"
        verbose "seed-gitignore end"
 
@@ -234,7 +241,6 @@ elif [ "$VCSH_COMMAND" = 'setup' ]; then
 else
        verbose "defaulting to calling help()"
        help
 else
        verbose "defaulting to calling help()"
        help
-       echo "$SELF: fatal: You should never reach this code. File a bug, please."
-       exit 99
+       fatal "You should never reach this code. File a bug, please." 99
 
 fi
 
 fi
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