view tests/test-encode @ 5137:2be225ea5722

extdiff: do single file diffs from the wc with no copy

Extdiff was always making a temporary directory and copying files even when not required. This change makes extdiff avoid the copy when diffing a single file that lives in the wc. This lets external diff tools edit the working copy file directly. It also lets other extensions resuse the functions in extdiff and get in-place diffs.

#!/bin/sh

hg init

cat > .hg/hgrc <<EOF
[encode]
*.gz = gunzip

[decode]
*.gz = gzip

EOF

echo "this is a test" | gzip > a.gz
hg add a.gz
hg ci -m "test" -d "1000000 0"
echo %% no changes
hg status
touch a.gz

echo %% no changes
hg status

echo %% uncompressed contents in repo
hg debugdata .hg/store/data/a.gz.d 0

echo %% uncompress our working dir copy
gunzip < a.gz

rm a.gz
hg co

echo %% uncompress our new working dir copy
gunzip < a.gz