feat: add try migrate to move existing dirs into tries

README.md

@@ -143,6 +143,7 @@ try new api                                  # Start with "2025-08-17-new-api"
 try . [name]                                   # Create a dated worktree dir for current repo
 try ./path/to/repo [name]                      # Use another repo as the worktree source
 try worktree dir [name]                        # Same as above, explicit CLI form
+try migrate [dir]                              # Move an existing dir into tries
 try clone https://github.com/user/repo.git  # Clone repo into date-prefixed directory
 try https://github.com/user/repo.git        # Shorthand for clone (same as above)
 try --help                                   # See all options

spec/command_line.md

@@ -110,6 +110,28 @@ try . <name>              # Shorthand (requires name)
 - Returns shell script to cd into worktree
 - `try .` without a name is NOT supported (too easy to invoke accidentally)
 
+### migrate
+
+Move an existing experiment directory into the tries directory.
+
+```
+try migrate [dir]
+try exec migrate [dir]
+```
+
+**Arguments:**
+- `dir` (optional): Directory to migrate, relative to cwd. Defaults to the current working directory.
+
+**Behavior:**
+- Opens a confirmation dialog showing the source, the destination (tries directory), and an editable target name
+- Default target name is `YYYY-MM-DD-<name>`; a name that already has a date prefix is kept as-is
+- Collision-safe: if the default target already exists, the versioning suffix (`-2`, `-3`, ...) is appended
+- Worktrees (directory with a `.git` file) are moved with `git worktree move`; all other directories with `mv`
+- Shows a warning when the source is inside a git repository but is not the repository root (moving it cuts it off from git history)
+- Refuses to migrate the tries directory itself or any directory already inside it
+- Returns a shell script that moves the directory and cds into it
+- Pressing Esc cancels (exit code 1)
+
 ### init
 
 Output shell function definition for shell integration.

spec/tests/test_40_migrate.sh

@@ -0,0 +1,146 @@
+# Migrate tests
+# Spec: command_line.md#migrate
+
+section "migrate"
+
+MIG_TRIES=$(mktemp -d)
+MIG_SRC=$(mktemp -d)
+today=$(date +%Y-%m-%d)
+
+# Test: ESC cancels without producing a move
+mkdir -p "$MIG_SRC/cancel-me"
+output=$(cd "$MIG_SRC/cancel-me" && try_run --path="$MIG_TRIES" --and-keys='ESC' exec migrate 2>/dev/null)
+if [ -z "$output" ] || ! echo "$output" | grep -q "mv "; then
+    pass
+else
+    fail "Esc should cancel migrate" "no mv" "$output" "command_line.md#migrate"
+fi
+
+# Test: ENTER accepts default date-prefixed target
+mkdir -p "$MIG_SRC/plain-exp"
+output=$(cd "$MIG_SRC/plain-exp" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "mv '.*' '$MIG_TRIES/$today-plain-exp'"; then
+    pass
+else
+    fail "Migrate should mv to date-prefixed target" "$MIG_TRIES/$today-plain-exp" "$output" "command_line.md#migrate"
+fi
+
+# Test: Script includes cd to destination
+if echo "$output" | grep -q "cd '$MIG_TRIES/$today-plain-exp'"; then
+    pass
+else
+    fail "Migrate script should cd to destination" "cd to target" "$output" "command_line.md#migrate"
+fi
+
+# Test: Named directory argument
+mkdir -p "$MIG_SRC/other-exp"
+output=$(cd "$MIG_SRC" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate other-exp 2>/dev/null)
+if echo "$output" | grep -q "mv '.*/other-exp' '$MIG_TRIES/$today-other-exp'"; then
+    pass
+else
+    fail "Migrate <dir> should move that directory" "$MIG_TRIES/$today-other-exp" "$output" "command_line.md#migrate"
+fi
+
+# Test: Already date-prefixed name is kept (no double prefix)
+mkdir -p "$MIG_SRC/2025-06-01-prefixed"
+output=$(cd "$MIG_SRC" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2025-06-01-prefixed 2>/dev/null)
+if echo "$output" | grep -q "mv '.*/2025-06-01-prefixed' '$MIG_TRIES/2025-06-01-prefixed'"; then
+    pass
+else
+    fail "Already-prefixed name should be kept" "no double prefix" "$output" "command_line.md#migrate"
+fi
+
+# Test: Collision bumps target to -2
+mkdir -p "$MIG_TRIES/$today-dup-exp"
+mkdir -p "$MIG_SRC/dup-exp"
+output=$(cd "$MIG_SRC/dup-exp" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "$MIG_TRIES/$today-dup-exp-2"; then
+    pass
+else
+    fail "Collision should bump target to -2" "$MIG_TRIES/$today-dup-exp-2" "$output" "command_line.md#migrate"
+fi
+
+# Test: Editable target name
+mkdir -p "$MIG_SRC/edit-exp"
+output=$(cd "$MIG_SRC/edit-exp" && try_run --path="$MIG_TRIES" --and-keys='CTRL-A,CTRL-K,TYPE=custom-target,ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "mv '.*' '$MIG_TRIES/custom-target'"; then
+    pass
+else
+    fail "Edited target name should be used" "$MIG_TRIES/custom-target" "$output" "command_line.md#migrate"
+fi
+
+# Test: Worktree (.git file) uses git worktree move
+mkdir -p "$MIG_SRC/worktree-exp"
+echo "gitdir: /tmp/fake-repo/.git/worktrees/worktree-exp" > "$MIG_SRC/worktree-exp/.git"
+output=$(cd "$MIG_SRC/worktree-exp" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "git worktree move"; then
+    pass
+else
+    fail "Worktree should use git worktree move" "git worktree move" "$output" "command_line.md#migrate"
+fi
+
+# Test: Warning shown when inside a git repository (not the root)
+GIT_REPO=$(mktemp -d)
+mkdir -p "$GIT_REPO/.git" "$GIT_REPO/subdir"
+output=$(cd "$GIT_REPO/subdir" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "inside a git repository"; then
+    pass
+else
+    fail "Inside-repo migrate should warn about git" "warning text" "$output" "command_line.md#migrate"
+fi
+
+# Test: No warning for a repository root (own .git dir)
+output=$(cd "$GIT_REPO" && try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate 2>/dev/null)
+if echo "$output" | grep -q "inside a git repository"; then
+    fail "Repo root migrate should not warn" "no warning" "$output" "command_line.md#migrate"
+else
+    pass
+fi
+
+# Test: Refuses to migrate the tries directory itself
+output=$(try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate "$MIG_TRIES" 2>/dev/null)
+if echo "$output" | grep -q "Error"; then
+    pass
+else
+    fail "Migrating tries root should error" "Error" "$output" "command_line.md#migrate"
+fi
+
+# Test: Refuses to migrate a directory already inside tries
+mkdir -p "$MIG_TRIES/2025-11-01-alpha"
+output=$(try_run --path="$MIG_TRIES" --and-keys='ENTER' exec migrate "$MIG_TRIES/2025-11-01-alpha" 2>/dev/null)
+if echo "$output" | grep -q "Error"; then
+    pass
+else
+    fail "Migrating a dir already in tries should error" "Error" "$output" "command_line.md#migrate"
+fi
+
+# Test: Empty target name is rejected (no move)
+mkdir -p "$MIG_SRC/empty-exp"
+output=$(cd "$MIG_SRC/empty-exp" && try_run --path="$MIG_TRIES" --and-keys='CTRL-A,CTRL-K,ENTER,ESC' exec migrate 2>/dev/null)
+if [ -z "$output" ] || ! echo "$output" | grep -q "mv "; then
+    pass
+else
+    fail "Empty target name should not produce mv" "no mv" "$output" "command_line.md#migrate"
+fi
+
+# Test: E2E — actually move the directory and keep its contents
+E2E_SRC=$(mktemp -d)
+mkdir -p "$E2E_SRC/real-exp"
+echo "hello" > "$E2E_SRC/real-exp/file.txt"
+script=$(cd "$E2E_SRC/real-exp" && eval $TRY_CMD exec --path="$MIG_TRIES" --and-keys='ENTER' migrate 2>/dev/null)
+eval "$(echo "$script" | grep -v '^#')" 2>/dev/null
+if [ -f "$MIG_TRIES/$today-real-exp/file.txt" ]; then
+    pass
+else
+    fail "E2E: file should exist at migrated destination" "$MIG_TRIES/$today-real-exp/file.txt" "$(ls -la $MIG_TRIES/ 2>&1)" "command_line.md#migrate"
+fi
+
+# Test: E2E — source directory no longer exists
+if [ ! -d "$E2E_SRC/real-exp" ]; then
+    pass
+else
+    fail "E2E: source should be gone after migrate" "no $E2E_SRC/real-exp" "$(ls -la $E2E_SRC/ 2>&1)" "command_line.md#migrate"
+fi
+
+# Cleanup
+rm -rf "$MIG_TRIES" "$MIG_SRC" "$GIT_REPO" "$E2E_SRC"