From 174e546a1e9572e760834d87a4dc68b6547838d1 Mon Sep 17 00:00:00 2001
From: Sean Whitton <spwhitton@spwhitton.name>
Date: Sun, 22 Mar 2020 09:27:09 -0700
Subject: fix annex-drop-files-deleted-by-commit

---
 bin/annex-drop-files-deleted-by-commit | 59 +++++++++++++++++++++-------------
 1 file changed, 36 insertions(+), 23 deletions(-)

(limited to 'bin/annex-drop-files-deleted-by-commit')

diff --git a/bin/annex-drop-files-deleted-by-commit b/bin/annex-drop-files-deleted-by-commit
index 367f4872..b8079091 100755
--- a/bin/annex-drop-files-deleted-by-commit
+++ b/bin/annex-drop-files-deleted-by-commit
@@ -32,46 +32,59 @@ use Git::Wrapper;
 use Try::Tiny;
 use Local::ScriptStatus;
 use Local::Interactive qw(prompt_yn);
+use File::chdir;
+use Cwd;
 
-# git wrapper setup
-my $git = Git::Wrapper->new(".");
+my $git = Git::Wrapper->new(getcwd);
+#<<<
 try {
     $git->rev_parse({ git_dir => 1 });
-}
-catch {
+} catch {
     die "pwd doesn't look like a git repository ..\n";
 };
+#>>>
 
-# process command line
-# TODO support --from so can drop from special remotes too
-my @drop_args = ();
-if ($ARGV[0] eq '--force') {
-    push @drop_args, "--force";
-    shift @ARGV;
-}
-
-# go for it
-my $temp = tempdir(CLEANUP => 1);
+my $temp = tempdir CLEANUP => 1;
 chmod 0700, $temp;
 $git->worktree("add", { force => 1, no_checkout => 1, detach => 1 }, $temp);
 my $worktree = Git::Wrapper->new($temp);
 for (@ARGV) {
+    local $CWD = $temp;
+
     my ($commit) = $git->rev_parse($_);
-    my @deleted_files
-      = $git->diff({ name_only => 1, diff_filter => 'D' },
-        "$commit~1..$commit");
+    my @deleted_files = $git->RUN(
+        qw(-c core.quotePath=false diff),
+        { name_only => 1, diff_filter => 'D' },
+        "$commit~1..$commit"
+    );
     $worktree->checkout("$commit~1");
 
-    say_spaced_bullet("Will drop"
-          . (grep(/\A--force\z/, @drop_args) ? " with --force:" : ":"));
+    # We ought to be able to just `ga drop` the files here, but the
+    # symlinks might be broken if the repo is bare and has
+    # .git/annex/objects organised differently.  And 'lookupkey'
+    # doesn't work in bare repos either.  So, extract the key from the
+    # symlink
+    my @deleted_keys;
+    for (@deleted_files) {
+        readlink =~ /SHA256E-s[0-9]+--[0-9a-f]+\.[a-zA-Z0-9]+$/;
+        $& or die "couldn't determine key of $_";
+        push @deleted_keys, $&;
+    }
+
+    # using dropkey is like passing --force to `git annex drop`
+    say_spaced_bullet "Will drop with --force:";
+    # for (my $i = 0 ; $i < @deleted_files ; $i++) {
+    #     say "$deleted_files[$i]  $deleted_keys[$i]";
+    # }
     say for @deleted_files;
     say '';
-    # bypass Git::Wrapper so output goes to terminal
-    system('git', '-C', $temp, 'annex', 'drop', @drop_args, @deleted_files)
-      if prompt_yn("Go ahead with this?");
+
+    if (prompt_yn "Go ahead with this?") {
+        say for $git->annex(qw|dropkey --force|, @deleted_keys);
+    }
 }
 # we can't use `git worktree remove` because the way git-annex
 # worktree support works breaks that command: git-annex replaces the
 # .git worktree file with a symlink
-rmtree($temp);
+rmtree $temp;
 $git->worktree("prune");
-- 
cgit v1.2.3