vim-patch.sh: update for Vim's hg => git migration

scripts/vim-patch-helper.awk

@@ -0,0 +1,18 @@
+#/usr/bin/env awk -f
+BEGIN {
+  FS="|";
+}
+{
+  if ($2 == "") { 
+    print($1)
+  } else {
+    n=split($2,ary,", ");
+    for (i=1;i<=n;i++) {
+      if (match(ary[i], /tag: /)) {
+        gsub(/[()]/, "", ary[i]);
+        sub(/ *tag: /, "", ary[i]);
+        print(ary[i]);
+      } 
+    }
+  }
+}

scripts/vim-patch.sh

@@ -20,7 +20,7 @@ usage() {
   echo "    -l                 Show list of Vim patches missing from Neovim."
   echo "    -p {vim-revision}  Download and apply the Vim patch vim-revision."
   echo "                       vim-revision can be a version number of the "
-  echo "                       format '7.4.xxx' or a Mercurial commit hash."
+  echo "                       format '7.4.xxx' or a Git commit hash."
   echo "    -r {pr-number}     Review a vim-patch pull request to Neovim."
   echo
   echo "Set VIM_SOURCE_DIR to change where Vim's sources are stored."
@@ -36,17 +36,22 @@ check_executable() {
 }
 
 get_vim_sources() {
-  check_executable hg
+  check_executable git
 
   echo "Retrieving Vim sources."
   if [[ ! -d ${VIM_SOURCE_DIR} ]]; then
     echo "Cloning Vim sources into '${VIM_SOURCE_DIR}'."
-    hg clone https://code.google.com/p/vim "${VIM_SOURCE_DIR}"
+    git clone --depth=1000 https://github.com/vim/vim.git "${VIM_SOURCE_DIR}"
     cd "${VIM_SOURCE_DIR}"
   else
+    if [[ ! -d "${VIM_SOURCE_DIR}/.git" ]]; then
+      echo "✘ ${VIM_SOURCE_DIR} does not appear to be a git repository."
+      echo "  Please remove it and try again."
+      exit 1
+    fi
     echo "Updating Vim sources in '${VIM_SOURCE_DIR}'."
     cd "${VIM_SOURCE_DIR}"
-    hg pull --update &&
+    git pull &&
       echo "✔ Updated Vim sources." ||
       echo "✘ Could not update Vim sources; ignoring error."
   fi
@@ -64,17 +69,17 @@ assign_commit_details() {
   if [[ ${1} =~ [0-9]\.[0-9]\.[0-9]{3,4} ]]; then
     # Interpret parameter as version number.
     vim_version="${1}"
-    vim_commit="v${1//./-}"
+    vim_commit="v${1}"
     local strip_commit_line=true
-    vim_commit_url="https://github.com/vim/vim/commit/${vim_commit}"
+    vim_commit_url="https://github.com/vim/vim/tree/${vim_commit}"
   else
     # Interpret parameter as commit hash.
     vim_version="${1:0:7}"
     vim_commit="${1}"
     local strip_commit_line=false
-    vim_commit_url="https://code.google.com/p/vim/source/detail?r=${vim_commit}"
+    vim_commit_url="https://github.com/vim/vim/commit/${vim_commit}"
   fi
-  vim_message="$(hg log --template "{desc}" --rev "${vim_commit}")"
+  vim_message="$(git log --pretty='format:%B' "${vim_commit}^\!")"
   if [[ ${strip_commit_line} == "true" ]]; then
     # Remove first line of commit message.
     vim_message="$(echo "${vim_message}" | sed -e '1d')"
@@ -86,7 +91,7 @@ get_vim_patch() {
 
   assign_commit_details "${1}"
 
-  hg log --rev "${vim_commit}" >/dev/null 2>&1 || {
+  git log "${vim_commit}^\!" -- >/dev/null 2>&1 || {
     >&2 echo "✘ Couldn't find Vim revision '${vim_commit}'."
     exit 3
   }
@@ -94,8 +99,8 @@ get_vim_patch() {
   echo "✔ Found Vim revision '${vim_commit}'."
 
   # Collect patch details and store into variables.
-  vim_full="$(hg log --patch --git --verbose --rev "${vim_commit}")"
-  vim_diff="$(hg diff --show-function --git --change "${vim_commit}" \
+  vim_full="$(git log --pretty=medium "${vim_commit}^\!")"
+  vim_diff="$(git diff "${vim_commit}^\!" \
     | sed -e 's/\( [ab]\/src\)/\1\/nvim/g')" # Change directory to src/nvim.
   neovim_message="$(commit_message)"
   neovim_pr="
@@ -162,22 +167,17 @@ list_vim_patches() {
   # runtime patches before between 384 and 442 have already been ported
   # to Neovim as of the creation of this script.
   local vim_commits=$(cd "${VIM_SOURCE_DIR}" && \
-    hg log --removed --template='{if(startswith("Added tag", firstline(desc)),
-      "{latesttag}\n",
-      "{if(startswith(\"updated for version\", firstline(desc)),
-        \"\",
-        \"{node}\n\")}")}' -r tip:v7-4-442)
+    git log --pretty='tformat:%H|%d' v7.4.442..HEAD | awk -f ${NEOVIM_SOURCE_DIR}/scripts/vim-patch-helper.awk)
+
   # Append remaining vim patches.
   # Start from 7.4.160, where Neovim was forked.
   local vim_old_commits=$(cd "${VIM_SOURCE_DIR}" && \
-    hg log --removed --template='{if(startswith("Added tag",
-      firstline(desc)),
-      "{latesttag}\n")}' -r v7-4-442:v7-4-161)
+    git log --pretty='tformat:%d' v7.4.160..v7.4.442 | awk '{ if ($1 != "") { gsub(/[()]/, "", $2); print($2); } }')
 
   local vim_commit
   for vim_commit in ${vim_commits} ${vim_old_commits}; do
     local is_missing
-    if [[ ${vim_commit} =~ v([0-9]-[0-9]-([0-9]{3,4})) ]]; then
+    if [[ ${vim_commit} =~ v([0-9].[0-9].([0-9]{3,4})) ]]; then
       local patch_number="${BASH_REMATCH[2]}"
       # "Proper" Vim patch
       # Check version.c:
@@ -253,9 +253,9 @@ review_pr() {
   echo "✔ Saved pull request diff to '${NEOVIM_SOURCE_DIR}/n${base_name}.diff'."
   echo "${neovim_patch}" > "${NEOVIM_SOURCE_DIR}/n${base_name}.patch"
   echo "✔ Saved full pull request commit details to '${NEOVIM_SOURCE_DIR}/n${base_name}.patch'."
-  hg diff --show-function --git --change "${vim_commit}" > "${NEOVIM_SOURCE_DIR}/${base_name}.diff"
+  git diff "${vim_commit}^\!" > "${NEOVIM_SOURCE_DIR}/${base_name}.diff"
   echo "✔ Saved Vim diff to '${NEOVIM_SOURCE_DIR}/${base_name}.diff'."
-  hg log --patch --git --verbose --rev "${vim_commit}" > "${NEOVIM_SOURCE_DIR}/${base_name}.patch"
+  git show "${vim_commit}" > "${NEOVIM_SOURCE_DIR}/${base_name}.patch"
   echo "✔ Saved full Vim commit details to '${NEOVIM_SOURCE_DIR}/${base_name}.patch'."
   echo "You can use 'git clean' to remove these files when you're done."