t/t7003-filter-branch.sh

   1 #!/bin/sh
   2
   3 test_description='git filter-branch'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'setup' '
   7         test_commit A &&
   8         GIT_COMMITTER_DATE="@0 +0000" GIT_AUTHOR_DATE="@0 +0000" &&
   9         test_commit --notick B &&
  10         git checkout -b branch B &&
  11         test_commit D &&
  12         mkdir dir &&
  13         test_commit dir/D &&
  14         test_commit E &&
  15         git checkout master &&
  16         test_commit C &&
  17         git checkout branch &&
  18         git merge C &&
  19         git tag F &&
  20         test_commit G &&
  21         test_commit H
  22 '
  23 # * (HEAD, branch) H
  24 # * G
  25 # *   Merge commit 'C' into branch
  26 # |\
  27 # | * (master) C
  28 # * | E
  29 # * | dir/D
  30 # * | D
  31 # |/
  32 # * B
  33 # * A
  34
  35
  36 H=$(git rev-parse H)
  37
  38 test_expect_success 'rewrite identically' '
  39         git filter-branch branch
  40 '
  41 test_expect_success 'result is really identical' '
  42         test $H = $(git rev-parse HEAD)
  43 '
  44
  45 test_expect_success 'rewrite bare repository identically' '
  46         (git config core.bare true && cd .git &&
  47          git filter-branch branch > filter-output 2>&1 &&
  48         ! fgrep fatal filter-output)
  49 '
  50 git config core.bare false
  51 test_expect_success 'result is really identical' '
  52         test $H = $(git rev-parse HEAD)
  53 '
  54
  55 TRASHDIR=$(pwd)
  56 test_expect_success 'correct GIT_DIR while using -d' '
  57         mkdir drepo &&
  58         ( cd drepo &&
  59         git init &&
  60         test_commit drepo &&
  61         git filter-branch -d "$TRASHDIR/dfoo" \
  62                 --index-filter "cp \"$TRASHDIR\"/dfoo/backup-refs \"$TRASHDIR\"" \
  63         ) &&
  64         grep drepo "$TRASHDIR/backup-refs"
  65 '
  66
  67 test_expect_success 'tree-filter works with -d' '
  68         git init drepo-tree &&
  69         (
  70                 cd drepo-tree &&
  71                 test_commit one &&
  72                 git filter-branch -d "$TRASHDIR/dfoo" \
  73                         --tree-filter "echo changed >one.t" &&
  74                 echo changed >expect &&
  75                 git cat-file blob HEAD:one.t >actual &&
  76                 test_cmp expect actual &&
  77                 test_cmp one.t actual
  78         )
  79 '
  80
  81 test_expect_success 'Fail if commit filter fails' '
  82         test_must_fail git filter-branch -f --commit-filter "exit 1" HEAD
  83 '
  84
  85 test_expect_success 'rewrite, renaming a specific file' '
  86         git filter-branch -f --tree-filter "mv D.t doh || :" HEAD
  87 '
  88
  89 test_expect_success 'test that the file was renamed' '
  90         test D = "$(git show HEAD:doh --)" &&
  91         ! test -f D.t &&
  92         test -f doh &&
  93         test D = "$(cat doh)"
  94 '
  95
  96 test_expect_success 'rewrite, renaming a specific directory' '
  97         git filter-branch -f --tree-filter "mv dir diroh || :" HEAD
  98 '
  99
 100 test_expect_success 'test that the directory was renamed' '
 101         test dir/D = "$(git show HEAD:diroh/D.t --)" &&
 102         ! test -d dir &&
 103         test -d diroh &&
 104         ! test -d diroh/dir &&
 105         test -f diroh/D.t &&
 106         test dir/D = "$(cat diroh/D.t)"
 107 '
 108
 109 git tag oldD HEAD~4
 110 test_expect_success 'rewrite one branch, keeping a side branch' '
 111         git branch modD oldD &&
 112         git filter-branch -f --tree-filter "mv B.t boh || :" D..modD
 113 '
 114
 115 test_expect_success 'common ancestor is still common (unchanged)' '
 116         test "$(git merge-base modD D)" = "$(git rev-parse B)"
 117 '
 118
 119 test_expect_success 'filter subdirectory only' '
 120         mkdir subdir &&
 121         touch subdir/new &&
 122         git add subdir/new &&
 123         test_tick &&
 124         git commit -m "subdir" &&
 125         echo H > A.t &&
 126         test_tick &&
 127         git commit -m "not subdir" A.t &&
 128         echo A > subdir/new &&
 129         test_tick &&
 130         git commit -m "again subdir" subdir/new &&
 131         git rm A.t &&
 132         test_tick &&
 133         git commit -m "again not subdir" &&
 134         git branch sub &&
 135         git branch sub-earlier HEAD~2 &&
 136         git filter-branch -f --subdirectory-filter subdir \
 137                 refs/heads/sub refs/heads/sub-earlier
 138 '
 139
 140 test_expect_success 'subdirectory filter result looks okay' '
 141         test 2 = $(git rev-list sub | wc -l) &&
 142         git show sub:new &&
 143         test_must_fail git show sub:subdir &&
 144         git show sub-earlier:new &&
 145         test_must_fail git show sub-earlier:subdir
 146 '
 147
 148 test_expect_success 'more setup' '
 149         git checkout master &&
 150         mkdir subdir &&
 151         echo A > subdir/new &&
 152         git add subdir/new &&
 153         test_tick &&
 154         git commit -m "subdir on master" subdir/new &&
 155         git rm A.t &&
 156         test_tick &&
 157         git commit -m "again subdir on master" &&
 158         git merge branch
 159 '
 160
 161 test_expect_success 'use index-filter to move into a subdirectory' '
 162         git branch directorymoved &&
 163         git filter-branch -f --index-filter \
 164                  "git ls-files -s | sed \"s-    -&newsubdir/-\" |
 165                   GIT_INDEX_FILE=\$GIT_INDEX_FILE.new \
 166                         git update-index --index-info &&
 167                   mv \"\$GIT_INDEX_FILE.new\" \"\$GIT_INDEX_FILE\"" directorymoved &&
 168         git diff --exit-code HEAD directorymoved:newsubdir
 169 '
 170
 171 test_expect_success 'stops when msg filter fails' '
 172         old=$(git rev-parse HEAD) &&
 173         test_must_fail git filter-branch -f --msg-filter false HEAD &&
 174         test $old = $(git rev-parse HEAD) &&
 175         rm -rf .git-rewrite
 176 '
 177
 178 test_expect_success 'author information is preserved' '
 179         : > i &&
 180         git add i &&
 181         test_tick &&
 182         GIT_AUTHOR_NAME="B V Uips" git commit -m bvuips &&
 183         git branch preserved-author &&
 184         (sane_unset GIT_AUTHOR_NAME &&
 185          git filter-branch -f --msg-filter "cat; \
 186                         test \$GIT_COMMIT != $(git rev-parse master) || \
 187                         echo Hallo" \
 188                 preserved-author) &&
 189         test 1 = $(git rev-list --author="B V Uips" preserved-author | wc -l)
 190 '
 191
 192 test_expect_success "remove a certain author's commits" '
 193         echo i > i &&
 194         test_tick &&
 195         git commit -m i i &&
 196         git branch removed-author &&
 197         git filter-branch -f --commit-filter "\
 198                 if [ \"\$GIT_AUTHOR_NAME\" = \"B V Uips\" ];\
 199                 then\
 200                         skip_commit \"\$@\";
 201                 else\
 202                         git commit-tree \"\$@\";\
 203                 fi" removed-author &&
 204         cnt1=$(git rev-list master | wc -l) &&
 205         cnt2=$(git rev-list removed-author | wc -l) &&
 206         test $cnt1 -eq $(($cnt2 + 1)) &&
 207         test 0 = $(git rev-list --author="B V Uips" removed-author | wc -l)
 208 '
 209
 210 test_expect_success 'barf on invalid name' '
 211         test_must_fail git filter-branch -f master xy-problem &&
 212         test_must_fail git filter-branch -f HEAD^
 213 '
 214
 215 test_expect_success '"map" works in commit filter' '
 216         git filter-branch -f --commit-filter "\
 217                 parent=\$(git rev-parse \$GIT_COMMIT^) &&
 218                 mapped=\$(map \$parent) &&
 219                 actual=\$(echo \"\$@\" | sed \"s/^.*-p //\") &&
 220                 test \$mapped = \$actual &&
 221                 git commit-tree \"\$@\";" master~2..master &&
 222         git rev-parse --verify master
 223 '
 224
 225 test_expect_success 'Name needing quotes' '
 226
 227         git checkout -b rerere A &&
 228         mkdir foo &&
 229         name="れれれ" &&
 230         >foo/$name &&
 231         git add foo &&
 232         git commit -m "Adding a file" &&
 233         git filter-branch --tree-filter "rm -fr foo" &&
 234         test_must_fail git ls-files --error-unmatch "foo/$name" &&
 235         test $(git rev-parse --verify rerere) != $(git rev-parse --verify A)
 236
 237 '
 238
 239 test_expect_success 'Subdirectory filter with disappearing trees' '
 240         git reset --hard &&
 241         git checkout master &&
 242
 243         mkdir foo &&
 244         touch foo/bar &&
 245         git add foo &&
 246         test_tick &&
 247         git commit -m "Adding foo" &&
 248
 249         git rm -r foo &&
 250         test_tick &&
 251         git commit -m "Removing foo" &&
 252
 253         mkdir foo &&
 254         touch foo/bar &&
 255         git add foo &&
 256         test_tick &&
 257         git commit -m "Re-adding foo" &&
 258
 259         git filter-branch -f --subdirectory-filter foo &&
 260         test $(git rev-list master | wc -l) = 3
 261 '
 262
 263 test_expect_success 'Tag name filtering retains tag message' '
 264         git tag -m atag T &&
 265         git cat-file tag T > expect &&
 266         git filter-branch -f --tag-name-filter cat &&
 267         git cat-file tag T > actual &&
 268         test_cmp expect actual
 269 '
 270
 271 faux_gpg_tag='object XXXXXX
 272 type commit
 273 tag S
 274 tagger T A Gger <tagger@example.com> 1206026339 -0500
 275
 276 This is a faux gpg signed tag.
 277 -----BEGIN PGP SIGNATURE-----
 278 Version: FauxGPG v0.0.0 (FAUX/Linux)
 279
 280 gdsfoewhxu/6l06f1kxyxhKdZkrcbaiOMtkJUA9ITAc1mlamh0ooasxkH1XwMbYQ
 281 acmwXaWET20H0GeAGP+7vow=
 282 =agpO
 283 -----END PGP SIGNATURE-----
 284 '
 285 test_expect_success 'Tag name filtering strips gpg signature' '
 286         sha1=$(git rev-parse HEAD) &&
 287         sha1t=$(echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | git mktag) &&
 288         git update-ref "refs/tags/S" "$sha1t" &&
 289         echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | head -n 6 > expect &&
 290         git filter-branch -f --tag-name-filter cat &&
 291         git cat-file tag S > actual &&
 292         test_cmp expect actual
 293 '
 294
 295 test_expect_success 'Tag name filtering allows slashes in tag names' '
 296         git tag -m tag-with-slash X/1 &&
 297         git cat-file tag X/1 | sed -e s,X/1,X/2, > expect &&
 298         git filter-branch -f --tag-name-filter "echo X/2" &&
 299         git cat-file tag X/2 > actual &&
 300         test_cmp expect actual
 301 '
 302
 303 test_expect_success 'Prune empty commits' '
 304         git rev-list HEAD > expect &&
 305         test_commit to_remove &&
 306         git filter-branch -f --index-filter "git update-index --remove to_remove.t" --prune-empty HEAD &&
 307         git rev-list HEAD > actual &&
 308         test_cmp expect actual
 309 '
 310
 311 test_expect_success '--remap-to-ancestor with filename filters' '
 312         git checkout master &&
 313         git reset --hard A &&
 314         test_commit add-foo foo 1 &&
 315         git branch moved-foo &&
 316         test_commit add-bar bar a &&
 317         git branch invariant &&
 318         orig_invariant=$(git rev-parse invariant) &&
 319         git branch moved-bar &&
 320         test_commit change-foo foo 2 &&
 321         git filter-branch -f --remap-to-ancestor \
 322                 moved-foo moved-bar A..master \
 323                 -- -- foo &&
 324         test $(git rev-parse moved-foo) = $(git rev-parse moved-bar) &&
 325         test $(git rev-parse moved-foo) = $(git rev-parse master^) &&
 326         test $orig_invariant = $(git rev-parse invariant)
 327 '
 328
 329 test_expect_success 'automatic remapping to ancestor with filename filters' '
 330         git checkout master &&
 331         git reset --hard A &&
 332         test_commit add-foo2 foo 1 &&
 333         git branch moved-foo2 &&
 334         test_commit add-bar2 bar a &&
 335         git branch invariant2 &&
 336         orig_invariant=$(git rev-parse invariant2) &&
 337         git branch moved-bar2 &&
 338         test_commit change-foo2 foo 2 &&
 339         git filter-branch -f \
 340                 moved-foo2 moved-bar2 A..master \
 341                 -- -- foo &&
 342         test $(git rev-parse moved-foo2) = $(git rev-parse moved-bar2) &&
 343         test $(git rev-parse moved-foo2) = $(git rev-parse master^) &&
 344         test $orig_invariant = $(git rev-parse invariant2)
 345 '
 346
 347 test_expect_success 'setup submodule' '
 348         rm -fr ?* .git &&
 349         git init &&
 350         test_commit file &&
 351         mkdir submod &&
 352         submodurl="$PWD/submod" &&
 353         ( cd submod &&
 354           git init &&
 355           test_commit file-in-submod ) &&
 356         git submodule add "$submodurl" &&
 357         git commit -m "added submodule" &&
 358         test_commit add-file &&
 359         ( cd submod && test_commit add-in-submodule ) &&
 360         git add submod &&
 361         git commit -m "changed submodule" &&
 362         git branch original HEAD
 363 '
 364
 365 orig_head=`git show-ref --hash --head HEAD`
 366
 367 test_expect_success 'rewrite submodule with another content' '
 368         git filter-branch --tree-filter "test -d submod && {
 369                                          rm -rf submod &&
 370                                          git rm -rf --quiet submod &&
 371                                          mkdir submod &&
 372                                          : > submod/file
 373                                          } || :" HEAD &&
 374         test $orig_head != `git show-ref --hash --head HEAD`
 375 '
 376
 377 test_expect_success 'replace submodule revision' '
 378         git reset --hard original &&
 379         git filter-branch -f --tree-filter \
 380             "if git ls-files --error-unmatch -- submod > /dev/null 2>&1
 381              then git update-index --cacheinfo 160000 0123456789012345678901234567890123456789 submod
 382              fi" HEAD &&
 383         test $orig_head != `git show-ref --hash --head HEAD`
 384 '
 385
 386 test_done